Allegiant Air Reliability

Reliability

July 2023 – July 2026

Airline Reliability Score

58/ 100Fair

Better than 37% of US reporting carriers (15 compared)

Calculated from 381,495 flights. How this is calculated

On-time arrivals

75.7%

285,256 of 376,810

Cancellation rate

0.94%

3,581 cancelled

Median arrival delay

-6 min

Average 12.7 min

Severe delays

9.5%

60+ minutes late

Delay when late

86 min

Average, when 15+ min late

Departure punctuality

77.0%

Left the gate on time

Against the 15 carriers FlyerIntel covers — all measured over the same period, from the same source — Allegiant Air ranks 11th of 15 for on-time arrivals, 2nd for cancellations and 10th for arrivals more than an hour late. The full table is at the foot of this page.

Over the most recent 12 months (2025-08 to 2026-07) Allegiant Air arrived on time 74.0% of the time, against 76.3% in the 12 months before (2024-08 to 2025-07) — declining by 2.3 percentage points.

Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026

Why Allegiant Air cancels flights

Every cancellation carries a reason code the operating carrier filed with US DOT. July 2023 – July 2026.

Allegiant Air cancelled 3,581 of 381,495 scheduled flights — about 1 in every 107. The reason it filed most often was extreme weather, 55.5% of the cancellations it coded — about 1 in every 192 scheduled flights.

Share of cancellations

Weather55.5%

Airline31.7%

Air traffic12.6%

Security0.1%

Of 3,581 cancelled departures carrying a reason code.

What each reason means

Extreme weather1 in 192

Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.

1,989 cancellations, 55.5% of the total.

The airline1 in 336

Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.

1,135 cancellations, 31.7% of the total.

The air traffic system1 in 844

Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.

452 cancellations, 12.6% of the total.

Security1 in 76,299

A terminal evacuation, a security breach, screening equipment failure, or screening queues over 29 minutes.

5 cancellations, 0.1% of the total.

What these shares do not measure

A reason code is the operating carrier’s own filing. US DOT collects the reason the airline gave; it does not adjudicate it, and carriers differ in how they fill the form in. The split above describes what kind of disruption Allegiant Air records, not who was at fault when it happened, and it cannot be set against another airline’s split to decide which of the two is better run.

That is measurable rather than a disclaimer. Across the 15 carriers FlyerIntel publishes, the correlation between how much of its own canceling a carrier attributes to itself and how often it actually cancels is -0.46 — negative, which is the wrong sign for a ranking of fault and about the right sign for a difference in filing convention. Hawaiian Airlines attributed 82.8% of its cancellations to itself and cancelled 1.00% of its flights; SkyWest Airlines attributed 2.7% and cancelled 1.33%. The airline taking the most blame is the one that cancels least.

The figure on this page that does compare cleanly between airlines is the cancellation rate in Reliability, because it counts cancellations instead of reading the reason filed for them. The First Flight of the Day sets out the same finding from the airport-carrier records, and declines on the strength of it to compare any two carriers’ codes.

Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.

Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026 · These are the reason codes Allegiant Air itself filed with US DOT — the reason the airline gave, not an independent finding of fault, and airlines differ in how they apply them. FlyerIntel publishes the split only for carriers with at least 500 coded cancellations in the period; 3,581 were recorded. Whatever the reason code, a cancelled flight may qualify for an automatic refund under DOT’s rule — the refund checker covers eligibility.

Reliability over time

24

25

26

Each column is one month of Allegiant Air operations. The strongest single month of the period was April 2024 at 86.3% on time; the weakest was July 2023 at 66.0%. Individual months move for reasons that do not repeat — a hurricane season, a technology outage, a winter storm — which is why the section below combines the same data by calendar month instead.

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026

Best and worst months to fly

Every Allegiant Air January stacked on every other January, and so on through the year.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Allegiant Air — best and worst months to fly
Month	Flights	On time	Cancelled
January	26,904	76.6%	1.97%
February	26,944	78.3%	0.60%
March	36,908	75.5%	0.95%
April	30,515	80.2%	0.22%
May	31,216	76.0%	0.22%
June	38,675	70.8%	0.70%
July	52,334	68.9%	1.25%
August	28,556	74.8%	1.02%
September	20,706	81.3%	0.87%
October	29,308	80.5%	2.08%
November	27,349	80.6%	0.33%
December	32,080	73.9%	0.96%

Combining 3 to 4 years of operations by calendar month, Allegiant Air is at its best in September, when 81.3% of arrivals were on time, and at its worst in July at 68.9% — a spread of 12.4 percentage points between two months of the same airline. Cancellations peak in a month of their own: October at 2.08% of flights, against 0.22% in May.

This is the shape of the calendar, not a forecast. It says that if you book Allegiant Air in July you are booking into the part of the year when this airline has historically been least punctual, and that a September itinerary starts from a better position. It does not say anything about a particular date, and it cannot: the figure behind each month is 3 to 4 years of that same month combined, precisely so that one storm does not decide the answer.

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Rates are recalculated from the summed monthly counts, so a heavy month carries more weight than a light one.

Best time to fly Allegiant Air

How Allegiant Air departures have done at each hour of each weekday, across its whole network.

By day and hour

On-time arrival rate for each weekday and scheduled departure hour, in local time at the airport each flight leaves from, so the grid mixes time zones across the network.

Wednesday 6–7 AM was the most reliable slot for Allegiant Air (93.0% on time, 901 flights) and Sunday 9–10 PM the least (55.1%, 3,108 flights).

Hour of departure matters more than day of the week: hourly averages sit a typical 9.4 points from the network-wide rate, weekday averages 2.2 points.

On-time arrival rate for Allegiant Air by weekday and scheduled departure hour, local time. Each button reads out one slot.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
6 AM–7 AM
7 AM–8 AM
8 AM–9 AM
9 AM–10 AM
10 AM–11 AM
11 AM–12 PM
12 PM–1 PM
1 PM–2 PM
2 PM–3 PM
3 PM–4 PM
4 PM–5 PM
5 PM–6 PM
6 PM–7 PM
7 PM–8 PM
8 PM–9 PM
9 PM–10 PM
10 PM–11 PM

On-time rate, % · stronger color, fewer on time

50–59
60–69
70–79
80–89
90–99

Fewer than 120 flights, not scored
Most reliable slot
Least reliable slot

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · On time is arrival within 15 minutes of schedule. Cells round to whole percentages; the table shows one decimal.

Best and worst slots are named only among slots with 500+ flights, and only when the gap is larger than sampling error. Departures before 6 AM and after 11 PM (401 flights) are not drawn: no slot in those hours has enough flights to score.

View as tableHide table

On-time arrival rate (%) with flights beneath, by scheduled departure hour and weekday for Allegiant Air. A dash means fewer than 120 flights, which are not scored.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
6 AM–7 AM	91.3% on time4,611 flights	89.2% on time619 flights	93.0% on time901 flights	90.8% on time4,935 flights	91.5% on time5,122 flights	89.7% on time2,139 flights	90.7% on time5,131 flights
7 AM–8 AM	89.5% on time4,586 flights	91.2% on time822 flights	91.0% on time1,419 flights	89.8% on time4,806 flights	89.5% on time4,649 flights	88.7% on time2,541 flights	88.5% on time4,884 flights
8 AM–9 AM	87.1% on time5,109 flights	90.7% on time1,315 flights	90.5% on time2,229 flights	87.9% on time4,997 flights	86.6% on time4,989 flights	86.4% on time3,306 flights	86.1% on time5,005 flights
9 AM–10 AM	84.3% on time4,525 flights	87.2% on time1,325 flights	88.6% on time2,099 flights	84.1% on time4,595 flights	84.4% on time4,578 flights	82.6% on time3,013 flights	82.8% on time4,756 flights
10 AM–11 AM	82.8% on time4,423 flights	87.3% on time1,662 flights	87.7% on time2,793 flights	82.9% on time4,378 flights	81.8% on time4,348 flights	81.0% on time3,319 flights	80.0% on time4,434 flights
11 AM–12 PM	81.7% on time4,695 flights	84.3% on time1,718 flights	84.4% on time2,357 flights	81.8% on time4,731 flights	81.3% on time4,357 flights	79.0% on time3,400 flights	80.0% on time4,787 flights
12 PM–1 PM	78.1% on time5,215 flights	80.6% on time1,523 flights	82.4% on time2,468 flights	77.6% on time5,202 flights	76.8% on time5,207 flights	74.0% on time3,089 flights	75.0% on time5,273 flights
1 PM–2 PM	76.5% on time4,166 flights	80.0% on time1,342 flights	80.0% on time2,040 flights	74.5% on time4,409 flights	74.0% on time4,017 flights	73.3% on time2,549 flights	72.0% on time4,462 flights
2 PM–3 PM	73.8% on time4,409 flights	77.7% on time1,521 flights	78.8% on time2,375 flights	73.0% on time4,528 flights	72.5% on time4,285 flights	71.2% on time3,168 flights	69.2% on time4,627 flights
3 PM–4 PM	72.5% on time6,206 flights	73.1% on time1,331 flights	73.5% on time2,324 flights	69.8% on time6,257 flights	70.8% on time6,093 flights	68.3% on time3,587 flights	65.3% on time6,400 flights
4 PM–5 PM	71.1% on time4,813 flights	71.7% on time924 flights	72.9% on time1,660 flights	70.2% on time4,613 flights	69.0% on time4,711 flights	65.2% on time2,548 flights	67.2% on time4,642 flights
5 PM–6 PM	67.4% on time3,986 flights	69.9% on time875 flights	70.4% on time1,350 flights	66.9% on time4,101 flights	65.7% on time3,975 flights	63.4% on time2,423 flights	62.8% on time4,213 flights
6 PM–7 PM	65.8% on time4,746 flights	64.8% on time743 flights	66.8% on time1,275 flights	63.8% on time4,798 flights	64.3% on time4,782 flights	60.5% on time2,716 flights	59.3% on time5,067 flights
7 PM–8 PM	68.9% on time3,523 flights	71.9% on time579 flights	63.2% on time772 flights	66.5% on time3,797 flights	67.5% on time3,606 flights	64.2% on time1,908 flights	60.8% on time3,885 flights
8 PM–9 PM	65.2% on time2,820 flights	60.1% on time390 flights	67.9% on time643 flights	65.5% on time3,337 flights	64.8% on time2,954 flights	60.6% on time1,594 flights	62.2% on time3,385 flights
9 PM–10 PM	63.8% on time3,357 flights	58.8% on time304 flights	64.6% on time559 flights	61.1% on time2,909 flights	60.4% on time3,417 flights	55.9% on time1,534 flights	55.1% on time3,108 flights
10 PM–11 PM	67.9% on time1,077 flights	69 flights, too few to score	107 flights, too few to score	64.6% on time1,263 flights	67.4% on time1,211 flights	66.5% on time241 flights	64.1% on time1,303 flights

Why Allegiant Air runs late

Share of total reported delay minutes by cause, as classified by the operating carrier.

Late-arriving aircraft38.6%

the inbound aircraft was late, so this flight started late

The airline32.1%

crew, maintenance, boarding and fueling, all within the carrier’s control

Air traffic control18.1%

airspace and airport capacity, including weather-driven flow control

Weather10.9%

weather severe enough to stop this flight specifically

Security0.3%

screening or terminal security incidents

Share of the delay minutes US DOT attributed to each cause for Allegiant Air. Only delays of 15 minutes or more are attributed.

The largest single category for Allegiant Air is late-arriving aircraft, at 38.6% of attributed minutes. The category squarely inside the carrier’s own control — crew, maintenance, boarding, fueling — accounts for 32.1% of its delay minutes, against 33.9% across the 15 carriers covered here. That is 1.8 percentage points less of its delay minutes falling inside the airline than is typical for this group.

These shares describe how delay minutes were divided, not how often delays happened. A carrier with an unusually large air-traffic-control share is not necessarily worse run; it may simply fly more of its schedule through congested airspace. The one category that is squarely the airline’s own is the carrier category, which is why it is the one compared above.

Source: US DOT BTS delay cause categories · July 2023 – July 2026 · Cause minutes are only reported for arrivals delayed 15 minutes or more.

How Allegiant Air handles bad weather

Departures by the weather at the origin in the hour they were scheduled to leave, July 2023 – July 2026.

7% of Allegiant Air’s weather-matched departures left in an hour of bad weather at the origin. 2.5% of them were cancelled, 3.1 times the 0.8% cancelled in normal hours, and 64.7% of those that flew arrived on time, against 77.2%. Those hours held 19% of the airline’s cancelled departures.

In bad weather Allegiant Air cancelled fewer flights than other carriers: 2.3% of its departures in those hours were cancelled, against 3.3% for the other carriers at the same airports in the same months. It was below them in normal hours too (0.8% against 1.2%), so part of the difference is there in clear conditions as well. Its flights that operated arrived on time 63.8% of the time, 2.8 points below the others’ 66.6%.

Bad-weather hours against normal hours

Scheduled departures, July 2023 – July 2026

Allegiant Air cancellation and on-time rates in bad-weather and normal hours at the origin, with the other carriers at the same airports and months
Weather at the origin	Departures	Cancelled	Arrived on time
Normal hours	80,226	0.8%	77.2%
Other carriers	78,114compared	1.2%	78.6%
Bad-weather hours	6,5007% of all matched	2.5%3.1 times normal	64.7%12.5 points below normal
Other carriers	5,559compared	3.3%	66.6%

Bad weather means IFR or LIFR conditions, or a storm, snow, ice, fog, heavy rain or high wind, at the origin; normal means VFR with none of those. Marginal hours are in neither row, and were 8% of Allegiant Air’s matched departures. Cancelled is the share of scheduled departures. The other carriers’ rows apply their rate in each airport and month to the departures Allegiant Air had there.

The most exposed airports were BNA (4.4% of 545), ABE (2.9% of 662), FLL (2.5% of 559); the least, LAS (1.1% of 613), PIT (1.5% of 726), IND (2.4% of 586). It did best against the others at PIT, Pittsburgh: 1.5% cancelled against 3.3%.

Most exposed airports

Most exposed airports: Allegiant Air departures in bad weather by airport
Airport	Departures	Cancelled	Other carriers	Normal hours
BNA Nashville	545	4.4%	4.2%	0.6%
ABE Allentown	662	2.9%	—	0.8%
FLL Fort Lauderdale	559	2.5%	3.7%	1.0%

Least exposed airports

Least exposed airports: Allegiant Air departures in bad weather by airport
Airport	Departures	Cancelled	Other carriers	Normal hours
LAS Las Vegas	613	1.1%	2.1%	0.4%
PIT Pittsburgh	726	1.5%	3.3%	1.1%
IND Indianapolis	586	2.4%	3.2%	0.9%

Airports are listed with at least 500 of Allegiant Air’s bad-weather departures and 500 weather-matched departures in all. Other carriers is their cancellation rate in the same airport and months, applied to Allegiant Air’s departures there, and is left blank where Allegiant Air was nearly the only carrier flying in the bad-weather hours of most months and there is no one to compare with.

This is the weather reported at the origin in the hour a flight was scheduled to leave, July 2023 – July 2026. It leaves out the weather at the destination and on the way, and an hour takes the worst conditions any report in it gave. Weather was matched to 24.6% of Allegiant Air’s scheduled departures: the rest left from airports with no archived weather, in hours with no report, or at a scheduled time the flight records cannot place exactly. The comparison covers 707 airport-months in which Allegiant Air flew in bad weather; the other carriers are held to the same airport and calendar month, not the same hour of the day or the same aircraft, so a carrier that schedules more of those departures at the busiest or the quietest times is not fully adjusted for. 941 of its bad-weather departures were in an airport and month where the other carriers had fewer than 120 of their own, and are not in that comparison.

Source: FlyerIntel analysis of US DOT BTS flight records and Iowa Environmental Mesonet weather reports · July 2023 – July 2026 · Where the weather comes from, and its limits. All covered airports side by side: What Weather Costs Each Airport.

Turning aircraft around at Allegiant Air

Time on the ground between one flight and the next of the same aircraft, and what a late arrival does to the next departure, July 2023 – July 2026.

The median Allegiant Air turn is scheduled for 50 minutes on the ground and takes 56 minutes, against 56 minutes and 63 minutes across all airlines. Allegiant Air schedules its aircraft a shorter time on the ground than the network does.

When the aircraft landed 15 or more minutes late (57,284 turns, 63 minutes late on average), 51% of the turns were finished in no more than the scheduled ground time, against 68% across all airlines. 88% of those flights left 15 or more minutes late, against 72%. After an aircraft that landed on time, 10% did (network 11%).

Given the turn lengths it schedules, the network’s rates would give 61% finished in the schedule and 82% leaving late. By that measure Allegiant Air finished fewer late turns in the schedule and passed lateness on to the next departure more often than the network would have. 89% of its late-inbound turns had a scheduled turn of 45 to 59 minutes, against 31% of the network’s.

Turns, Allegiant Air against the network

277,143 turns, July 2023 – July 2026

Allegiant Air aircraft turns against all airlines: scheduled and actual time on the ground and what a late inbound aircraft does
Measure	Allegiant Air	All airlines	All airlines, same turn lengths
Median scheduled turn	50 min	56 min	—
Median actual turn	56 min	63 min	—
Turns that began with an aircraft 15+ minutes late	21%	19%	—
Late turns finished within the schedule	51%	68%	61%
Late inbound that left 15+ minutes late	88%	72%	82%
On-time inbound that left 15+ minutes late	10%	11%	—

Late means 15 or more minutes. A turn finishes within the schedule when the aircraft spent no more time on the ground than the schedule gave it. The last column applies the network’s rate in each scheduled-turn band (under 30 minutes up to 3 to 6 hours) to the number of Allegiant Air turns in that band, so it shows what the same turn lengths would give across all airlines.

A turn pairs an aircraft’s landing with its next departure by tail number; the aircraft is never named. These 277,143 turns are 73% of Allegiant Air’s flights in the period; the rest are an aircraft’s first flight after a long stay, flights without a usable inbound, and cancelled flights. Ground time is measured from the gate: the scheduled turn plus the departing flight’s delay minus the inbound’s arrival delay. Overnight stays (6 hours or more on the ground), cancelled flights and flights whose inbound diverted are not turns here. Turns scheduled under 30 minutes are a small share and are kept, but they are rarely a plan for that aircraft (more often a swap or recovery, with the flight waiting for an aircraft that was not the one scheduled), so most of them across the network leave late even after an on-time landing. A flight that an airline covered with a different aircraft is linked to the one that flew it, not the one first planned.

Source: FlyerIntel analysis of US DOT BTS flight records · July 2023 – July 2026 · All airlines side by side: How Fast an Aircraft Turns When It Has To.

What sets Allegiant Air apart

Where Allegiant Air differs most from the other covered airlines, July 2023 – July 2026.

11 PM is where Allegiant Air falls furthest behind the other airlines: 59.4% of its 11 PM departures arrive on time, 19.7 points below the 79.1% for that hour elsewhere.

Allegiant Air’s weakest month against the field is December, 73.9% on time to 78.9% for the other airlines, 5 points short.

BOS is where Allegiant Air stands out most against local competition: 85.8% of its departures arrive on time, 8.6 points above the 77.2% of the other airlines out of the same airport.

Out of SAN, Allegiant Air arrives on time 60.5% of the time, 17.5 points below the 78.0% the other airlines there manage.

Taxi-out for Allegiant Air averages 14.8 minutes, 3.5 minutes less than the 18.3 minutes at the other covered airlines.

Allegiant Air against the other airlines

July 2023 – July 2026

Where Allegiant Air differs most from the other covered airlines, with the flights behind each figure
Measure	Allegiant Air	Elsewhere	Gap	Flights behind it
Hour: 11 PM departures	59.4%	79.1%	−19.7 pts	251 here, 180,392 elsewhere
Month: December	73.9%	78.9%	−5.0 pts	31,613 here, 1,692,081 elsewhere
Airport: BOS	85.8%	77.2%	+8.6 pts	1,776 here, 429,118 elsewhere
Airport: SAN	60.5%	78.0%	−17.5 pts	501 here, 292,821 elsewhere
Taxi-out: Departures	14.8 min	18.3 min	−3.5 min	377,969 here, 21,015,005 elsewhere

“Elsewhere” is every other covered airline together, from the same aggregates as this page. Hours and months appear only where both sides have at least 120 completed flights; airports only where Allegiant Air and everyone else there each have at least 500. Gaps must be at least 2 points and 2 standard errors, and only the largest in each direction is shown. Airlines fly different airports, so the hour and month rows partly compare different traffic; the airport rows compare like with like. The taxi figure is weighted by departures, mixes airports, and has no error estimate, so it appears from 2 minutes.

Where this airline flies

Departure performance at the airports FlyerIntel covers.

Airports served

137

33 of them covered in detail here

Departures from its largest base

8.0%

SFB · Orlando

Departures from its top three

21.1%

SFB, PIE, LAS

Allegiant Air departed from 137 airports in this period, with no single one accounting for more than 8.0% of departures and the largest three together 21.1%. Performance is spread across the network rather than resting on one or two hubs, so a single weak airport moves this carrier’s overall figure less than it would at a hub-and-spoke airline.

Where this airline flies
Airport	Departures	On time	Cancelled	Median delay
LAS Las Vegas	22,954	82.2%	0.42%	-8 min
FLL Fort Lauderdale	12,100	67.7%	1.04%	0 min
BNA Nashville	8,553	78.8%	0.89%	-7 min
ABE Allentown	5,977	82.6%	1.02%	-11 min
IND Indianapolis	4,908	75.3%	1.02%	-5 min
PIT Pittsburgh	4,704	78.3%	1.06%	-7 min
MYR Myrtle Beach	4,145	72.9%	2.36%	-5 min
SNA Santa Ana	3,553	70.2%	1.35%	-1 min
AUS Austin	2,803	73.3%	0.86%	-2 min
JAX Jacksonville	2,658	70.6%	0.83%	-3 min
LAX Los Angeles	2,353	78.8%	0.68%	-3 min
EWR Newark	1,964	81.1%	0.87%	-9 min

Strongest airports

ABE (82.6%), LAS (82.2%), BNA (78.8%)

Weakest airports

FLL (67.7%), SNA (70.2%), JAX (70.6%)

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Airports where this carrier flew fewer than 500 departures are not listed.

Where Allegiant Air flies best and worst

The airports and routes where Allegiant Air is on time most and least often, set beside the other airlines at the same place.

ABE is a strong airport for Allegiant Air at 82.6%, but the other airlines there do about as well at 83.0%, so the airport is easy rather than the airline special.

Allegiant Air arrives on time 82.2% of the time at LAS, 4.4 points better than the 77.8% for the other airlines there.

BNA is a strong airport for Allegiant Air at 78.8%, but the other airlines there do about as well at 78.3%, so the airport is easy rather than the airline special.

Allegiant Air manages 67.7% at FLL, 5.1 points below the 72.8% for the other airlines there.

Allegiant Air manages 70.2% at SNA, 12.3 points below the 82.5% for the other airlines there.

Allegiant Air manages 70.6% at JAX, 9.7 points below the 80.3% for the other airlines there.

Airports, best and worst

Airports, best and worst: Allegiant Air on-time rate beside the other airlines, with the flights behind each figure
Place	Allegiant Air	Other airlines	Flights behind it
ABE	82.6%	83.0%	5,887 here, 5,643 others
LAS	82.2%	77.8%	22,779 here, 540,124 others
BNA	78.8%	78.3%	8,451 here, 306,111 others
FLL	67.7%	72.8%	11,940 here, 261,144 others
SNA	70.2%	82.5%	3,490 here, 132,005 others
JAX	70.6%	80.3%	2,630 here, 85,882 others

July 2023 – July 2026. Airports need at least 2,000 completed flights by Allegiant Air, routes 600. The other airlines are everyone else at the same airport or on the same route, compared only where they have at least 500 (airports) or 200 (routes) completed flights; a gap counts as ahead or behind only at 2 points and 2 standard errors. Route figures are for one direction. Airlines fly different times of day and aircraft, so a gap is a comparison, not a cause.

Compare airlines

Every carrier on FlyerIntel is measured the same way, over the same period, using the same source data. That is the whole point of the table: airline marketing reports punctuality on definitions of its own choosing, and this does not.

Compare airlines
Airline	Score	On time	Cancelled	60+ min late	Flights
Endeavor Air	70	85.1%	2.30%	6.0%	304,230
Hawaiian Airlines	80	83.7%	1.00%	2.9%	199,679
Republic Airways	61	82.3%	3.26%	6.7%	1,004,281
Delta Air Lines	71	82.1%	1.16%	6.3%	3,146,502
SkyWest Airlines	64	80.4%	1.33%	7.9%	2,433,643
Envoy Air	66	80.1%	1.80%	6.6%	886,878
United Airlines	66	79.7%	1.21%	7.5%	2,418,979
Alaska Airlines	71	78.9%	1.28%	5.0%	813,732
Southwest Airlines	71	78.2%	0.86%	6.0%	4,371,639
PSA Airlines	44	75.8%	3.43%	10.4%	717,562
Allegiant Air	58	75.7%	0.94%	9.5%	381,495
Spirit Airlines	54	75.5%	2.06%	9.6%	635,598
American Airlines	52	74.8%	1.76%	10.0%	3,019,376
JetBlue	45	72.5%	2.19%	11.7%	745,492
Frontier Airlines	45	71.8%	2.09%	11.5%	629,235

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Score is the FlyerIntel Airline Reliability Score. See all airlines ranked →

Data and methodology

Calculated by FlyerIntel from 381,495 Allegiant Air flight records published by the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately, because folding them in would flatter a carrier that cancels rather than runs late. Figures below a published sample threshold are omitted rather than shown with a caveat.

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Analysis last recomputed September 26, 2026

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Allegiant Air on-time performance, from FlyerIntel

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<a href="https://flyerintel.com/airlines/allegiant/"><img src="https://flyerintel.com/badge/airline/allegiant/" alt="Allegiant Air on-time performance, from FlyerIntel"></a>