DFW → LAS Flight Reliability

Right now

Origin · DFWNo disruption reported

Aviation weather is not currently a factor.

Updated 07:53 UTC

Dallas–Fort Worth airport profile →

Destination · LASNo disruption reported

Aviation weather is not currently a factor.

Updated 07:56 UTC

Las Vegas airport profile →

Route reliability

July 2023 – July 2026

Route Reliability Score

42/ 100Weak

Better than 6% of comparable major US routes (4,598 compared)

Calculated from 17,678 flights. How this is calculated

On-time arrivals

68.8%

11,894 of 17,294

Cancellation rate

2.02%

357 cancelled

Median arrival delay

-1 min

Average 16.6 min

Severe delays

11.8%

60+ minutes late

Delay when late

72 min

Average, when 15+ min late

Flights analyzed

17,678

3 carriers

DFW → LAS arrives on time 68.8% of the time; the return trip, LAS → DFW, arrives on time 78.1% of the time, a 9.4-point gap between the two directions of the same city pair.

DFW → LAS spends 28.0 minutes on the ground on a 1,055-mile trip: 19.4 minutes from pushback to wheels-up at DFW and 8.6 minutes from touchdown to gate at LAS.

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

Why DFW → LAS flights are cancelled

July 2023 – July 2026

DFW → LAS cancelled 357 of 17,678 scheduled flights — about 1 in every 50. The reason filed most often was extreme weather, 81.8% of the cancellations coded on this route — about 1 in every 61 scheduled flights.

Share of cancellations

Weather81.8%

Airline15.4%

Air traffic2.8%

Security0.0%

Of 357 cancelled departures carrying a reason code.

What each reason means

Extreme weather1 in 61

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

292 cancellations, 81.8% of the total.

The airline1 in 321

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

55 cancellations, 15.4% of the total.

The air traffic system1 in 1,768

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

10 cancellations, 2.8% of the total.

Security—

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

0 cancellations, 0.0% of the total.

Reason codes are the operating airline’s own filing with US DOT, not an independent finding of fault. Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.

357 coded cancellations were recorded on DFW → LAS; the section appears from 50.

When it goes wrong

July 2023 – July 2026

One arrival in ten is worse than

69 min late

against a median of 1 min early

Arrived an hour or more late11.8%

Typical delay when late72 min

Cancelled2.02%

Landed somewhere else0.15%

DFW → LAS has an average that understates its risk: a typical arrival is 1 min early, but the worst tenth are 70 minutes worse than that. If the trip has something unmissable at the end of it, the median is the wrong number to plan against.

Percentiles over 17,678 operations; cancelled and diverted flights are counted separately.

Will your connection be tight enough?

Layovers at LAS after arriving from DFW.

Connection buffer and chance of missing by layover length, DFW → LAS arrivals
Connection time	Chance of missing	Reads as
30 min	48%	Likely to miss
45 min	30%	Likely to miss
60 min	21%	High risk
90 min	12%	Some risk
120 min	6.9%	Some risk

This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 2.02% of the time and diverts 0.15% of the time, which a late arrival never shows up in.

Chance of missing is the share of 17,294 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.

The worst tenth of arrivals on this route land at least 69 minutes late (90th-percentile gate arrival delay), over 17,678 operations.

Any other layover length: connection checker.

Best time to fly

DFW → LAS flights departing 5–9 AM arrived on time 85.2% of the time, against 58.8% for 6–9 PM departures, a gap of 26.4 percentage points.

By day and hour

On-time arrival rate for each weekday and scheduled departure hour, in local time at the departure airport (DFW).

Hour of departure matters more than day of the week: hourly averages sit a typical 9.4 points from the route-wide rate, weekday averages 3.7 points.

On-time arrival rate for DFW to LAS by weekday and scheduled departure hour, local time. Each button reads out one slot.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
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

40–49
50–59
60–69
70–79
80–89

Fewer than 120 flights, not scored

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.

No slot is named best or worst: too few reach 500 flights. Departures before 7 AM and after 11 PM (805 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 DFW to LAS. A dash means fewer than 120 flights, which are not scored.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
7 AM–8 AM	87.4% on time187 flights	86.8% on time153 flights	85.7% on time136 flights	86.0% on time193 flights	83.2% on time191 flights	84.4% on time195 flights	86.4% on time166 flights
8 AM–9 AM	80.5% on time161 flights	78.5% on time188 flights	84.4% on time182 flights	84.4% on time161 flights	81.2% on time151 flights	86.6% on time167 flights	81.9% on time163 flights
9 AM–10 AM	50 flights, too few to score	54 flights, too few to score	53 flights, too few to score	50 flights, too few to score	52 flights, too few to score	97 flights, too few to score	43 flights, too few to score
10 AM–11 AM	89 flights, too few to score	92 flights, too few to score	78 flights, too few to score	99 flights, too few to score	85 flights, too few to score	93 flights, too few to score	94 flights, too few to score
11 AM–12 PM	68.6% on time175 flights	71.8% on time159 flights	74.8% on time160 flights	70.7% on time171 flights	68.0% on time179 flights	73.2% on time142 flights	66.7% on time178 flights
12 PM–1 PM	70.7% on time149 flights	116 flights, too few to score	76.0% on time122 flights	70.4% on time159 flights	76.9% on time147 flights	105 flights, too few to score	75.9% on time177 flights
1 PM–2 PM	60.8% on time132 flights	67.9% on time135 flights	114 flights, too few to score	108 flights, too few to score	59.7% on time135 flights	112 flights, too few to score	69.1% on time126 flights
2 PM–3 PM	73.0% on time180 flights	73.8% on time167 flights	70.4% on time153 flights	72.7% on time170 flights	67.4% on time186 flights	66.2% on time140 flights	67.0% on time186 flights
3 PM–4 PM	98 flights, too few to score	80 flights, too few to score	84 flights, too few to score	83 flights, too few to score	110 flights, too few to score	88 flights, too few to score	94 flights, too few to score
4 PM–5 PM	67.0% on time201 flights	64.5% on time186 flights	69.6% on time188 flights	54.3% on time201 flights	54.7% on time186 flights	63.1% on time182 flights	53.3% on time183 flights
5 PM–6 PM	61.3% on time163 flights	76.8% on time160 flights	76.6% on time143 flights	69.0% on time161 flights	60.1% on time166 flights	69.4% on time150 flights	61.3% on time147 flights
6 PM–7 PM	60.6% on time144 flights	70.9% on time153 flights	70.9% on time169 flights	60.4% on time170 flights	51.3% on time161 flights	52.9% on time140 flights	51.6% on time158 flights
7 PM–8 PM	50.7% on time148 flights	64.2% on time128 flights	119 flights, too few to score	54.5% on time139 flights	55.1% on time140 flights	58.9% on time128 flights	53.2% on time151 flights
8 PM–9 PM	55.8% on time198 flights	63.7% on time129 flights	66.9% on time147 flights	62.1% on time203 flights	53.9% on time196 flights	68.7% on time151 flights	48.3% on time207 flights
9 PM–10 PM	52.4% on time173 flights	72.3% on time145 flights	59.5% on time151 flights	61.3% on time156 flights	52.1% on time171 flights	62.9% on time157 flights	54.0% on time152 flights
10 PM–11 PM	55.7% on time290 flights	77.3% on time189 flights	74.3% on time246 flights	62.1% on time303 flights	62.9% on time278 flights	66.8% on time211 flights	57.0% on time312 flights

By departure window

5–9 AM85.2%

9 AM–12 PM73.9%

12–3 PM70.2%

3–6 PM63.8%

6–9 PM58.8%

9 PM–5 AM63.1%

By departure hour

12 AM

3 AM

6 AM

9 AM

12 PM

3 PM

6 PM

9 PM

Why DFW → LAS runs late

July 2023 – July 2026

Late-arriving aircraft50.3%

the inbound aircraft was late, so this flight started late

The airline29.1%

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

Air traffic control14.7%

airspace and airport capacity, including weather-driven flow control

Weather5.8%

weather severe enough to stop this flight specifically

Security0.1%

screening or terminal security incidents

Share of the delay minutes US DOT attributed to each cause for DFW → LAS. Only delays of 15 minutes or more are attributed.

Late-arriving aircraft is the largest cause on DFW → LAS, at 50.3%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 85.2% of the time and 6–9 PM departures 58.8%.

How this route holds up in bad weather

July 2023 – July 2026

The harder-hit end is the one the flight leaves from, where a cancellation keeps it from departing at all. Bad weather cancels 7.0 times the normal rate at DFW against 2.4 times at LAS. Cancelled in bad weather against normal hours: DFW 10.4% against 1.5%, LAS 2.0% against 0.8%. Flights that did leave LAS in bad weather arrived on time 58.5% of the time, against 78.5% in normal hours.

Bad weather and normal hours at the airports

Scheduled departures, July 2023 – July 2026

Departures from DFW and LAS in hours of bad weather and in normal hours
Departures from	DFW	LAS
Cancelled in bad weather	10.4%	2.0%
Cancelled in normal hours	1.5%	0.8%
Arrived on time, bad weather	56.4%	58.5%
Arrived on time, normal hours	74.4%	78.5%
Departures in bad weather	72,822	14,522

Frontier Airlines (5.9% cancelled against 10.5% for the other carriers at DFW) and Spirit Airlines (5.4% cancelled against 9.9% for the other carriers at DFW) cancelled fewer departures from DFW in bad weather than the other carriers there did in the same months. None of the route’s other carriers was clearly worse.

This route’s airlines in bad weather at DFW

All departures from DFW

Cancellation rates in bad weather at DFW for the airlines that fly DFW to LAS, against the other carriers at DFW in the same months
Airline	Bad-weather departures	Cancelled	Other carriers
Frontier Airlines	2,192	5.9%below the others	10.5%
Spirit Airlines	1,826	5.4%below the others	9.9%
American Airlines	38,491	10.0%about level	10.9%

These are airport figures, not route figures: every scheduled departure from DFW and LAS, to any destination, in hours the weather report called bad. The airline rows count each carrier’s departures from DFW on every route.

Weather source and limits. In full: DFW (airlines), LAS, What Weather Costs Each Airport, Who Cancels More When the Weather Turns, Airports That Change Places When Weather Turns.

Airlines on this route

Carriers with at least 200 flights, by the airline that operated each one.

Airlines on this route
Carrier	Flights	On time	Cancelled	Median delay	Severe
American Airlines	12,436	66.1%	2.32%	1 min	13.0%
Spirit Airlines	2,627	76.0%	0.88%	-3 min	7.8%
Frontier Airlines	2,615	73.9%	1.72%	-7 min	10.3%

American Airlines flew 70.3% of the 17,678 flights listed. American Airlines cancelled 2.32% of its flights here against 0.88% for Spirit Airlines.

Spirit Airlines arrived on time 9.9 percentage points more often than American Airlines on this route.

Flights on this route

Flight numbers with at least 600 operations here and still on the schedule.

Flights on this route
Flight	Scheduled	Operations	On time
AA777 American Airlines	12:53 PM	1,122	67.7%
AA1797 American Airlines	8:55 PM	1,040	57.0%
AA1771 American Airlines	6:53 PM	841	52.9%
F93885 Frontier Airlines	10:45 PM	678	73.2%
AA2864 American Airlines	4:36 PM	627	65.2%

F93885 (10:45 PM) arrived on time 73.2% of the time, 20.3 points more often than AA1771 (6:53 PM) at 52.9%.

Weekly and seasonal patterns

By day of week

Mon66.1%

Tue74.2%

Wed73.7%

Thu68.4%

Fri64.9%

Sat71.0%

Sun64.6%

Tuesday is historically the most reliable day and Sunday the least, a gap of 9.6 percentage points.

By month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

July is historically the weakest month and December the strongest, a spread of 22.5 percentage points.

Reliability over time

July 2023 – July 2026

24

25

26

Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 69.1% against 71.3% in the 12 months before — declining by 2.2 percentage points.

Data and methodology

Calculated by FlyerIntel from 17,678 DFW → LAS flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.

Full methodology · Data sources · Report a problem

Analysis last recomputed September 26, 2026

DFW airport LAS airport Return direction LAS → DFW

DFW→LAS

Right now

Route reliability

Why DFW → LAS flights are cancelled

Share of cancellations

What each reason means

When it goes wrong

Will your connection be tight enough?

Best time to fly

By day and hour

By departure window

By departure hour

Why DFW → LAS runs late

How this route holds up in bad weather

Bad weather and normal hours at the airports

This route’s airlines in bad weather at DFW

Airlines on this route

Flights on this route

Weekly and seasonal patterns

By day of week

By month

Reliability over time

Data and methodology