MIA → LGA Flight Reliability

Right now

Origin · MIANo disruption reported

Aviation weather is not currently a factor.

Updated 08:53 UTC

Miami airport profile →

Destination · LGANo disruption reported

Aviation weather is not currently a factor.

Updated 08:51 UTC

New York airport profile →

Route reliability

July 2023 – July 2026

Route Reliability Score

42/ 100Weak

Better than 5% of comparable major US routes (4,598 compared)

Calculated from 17,929 flights. How this is calculated

On-time arrivals

71.1%

12,295 of 17,299

Cancellation rate

2.72%

487 cancelled

Median arrival delay

-4 min

Average 14.5 min

Severe delays

11.8%

60+ minutes late

Delay when late

75 min

Average, when 15+ min late

Flights analyzed

17,929

4 carriers

MIA → LGA arrives on time 71.1% of the time; the return trip, LGA → MIA, arrives on time 74.0% of the time, a 3.0-point gap between the two directions of the same city pair.

MIA → LGA spends 29.2 minutes on the ground on a 1,096-mile trip: 21.8 minutes from pushback to wheels-up at MIA and 7.4 minutes from touchdown to gate at LGA.

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

What stands out

This route's worst arrivals run unusually far past its typical one, a bigger gap than 93% of 4,598 comparable routes.

A typical arrival is 4 min early, but the worst tenth run 74 minutes worse than that.

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Ranked against every other route with the same kind of figure and at least 4,598 in the comparison.

Why MIA → LGA flights are cancelled

July 2023 – July 2026

MIA → LGA cancelled 487 of 17,929 scheduled flights — about 1 in every 37. The reason filed most often was extreme weather, 72.3% of the cancellations coded on this route — about 1 in every 51 scheduled flights.

Share of cancellations

Weather72.3%

Airline16.2%

Air traffic11.5%

Security0.0%

Of 487 cancelled departures carrying a reason code.

What each reason means

Extreme weather1 in 51

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

352 cancellations, 72.3% of the total.

The airline1 in 227

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

79 cancellations, 16.2% of the total.

The air traffic system1 in 320

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

56 cancellations, 11.5% 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.

487 coded cancellations were recorded on MIA → LGA; the section appears from 50.

When it goes wrong

July 2023 – July 2026

One arrival in ten is worse than

70 min late

against a median of 4 min early

Arrived an hour or more late11.8%

Typical delay when late75 min

Cancelled2.72%

Landed somewhere else0.80%

MIA → LGA has an average that understates its risk: a typical arrival is 4 min early, but the worst tenth are 74 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 17,929 operations; cancelled and diverted flights are counted separately.

Will your connection be tight enough?

Layovers at LGA after arriving from MIA.

Connection buffer and chance of missing by layover length, MIA → LGA arrivals
Connection time	Chance of missing	Reads as
30 min	44%	Likely to miss
45 min	28%	High risk
60 min	20%	High risk
90 min	12%	Some risk
120 min	7.2%	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 2.72% of the time and diverts 0.80% of the time, which a late arrival never shows up in.

Chance of missing is the share of 17,299 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 70 minutes late (90th-percentile gate arrival delay), over 17,929 operations.

Any other layover length: connection checker.

Best time to fly

MIA → LGA flights departing 5–9 AM arrived on time 89.0% of the time, against 61.4% for 6–9 PM departures, a gap of 27.6 percentage points.

By day and hour

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

Hour of departure matters more than day of the week: hourly averages sit a typical 10.7 points from the route-wide rate, weekday averages 3.6 points.

On-time arrival rate for MIA to LGA 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

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

40–49
50–59
60–69
70–79
80–89
90–99

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 9 PM (653 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 MIA to LGA. A dash means fewer than 120 flights, which are not scored.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
7 AM–8 AM	89.1% on time241 flights	93.7% on time246 flights	89.3% on time240 flights	88.9% on time237 flights	90.1% on time237 flights	90.3% on time231 flights	86.9% on time242 flights
8 AM–9 AM	86.6% on time152 flights	86.7% on time156 flights	90.8% on time155 flights	87.7% on time156 flights	84.1% on time154 flights	85.8% on time135 flights	86.3% on time150 flights
9 AM–10 AM	79.4% on time149 flights	81.0% on time145 flights	85.0% on time141 flights	85.7% on time141 flights	83.2% on time144 flights	86.6% on time123 flights	78.1% on time150 flights
10 AM–11 AM	47 flights, too few to score	50 flights, too few to score	46 flights, too few to score	50 flights, too few to score	50 flights, too few to score	41 flights, too few to score	48 flights, too few to score
11 AM–12 PM	78.2% on time181 flights	79.5% on time180 flights	77.5% on time184 flights	72.2% on time183 flights	73.4% on time184 flights	73.4% on time176 flights	75.6% on time177 flights
12 PM–1 PM	68.6% on time176 flights	76.3% on time181 flights	82.1% on time180 flights	75.1% on time181 flights	70.8% on time177 flights	67.4% on time177 flights	76.5% on time187 flights
1 PM–2 PM	109 flights, too few to score	107 flights, too few to score	107 flights, too few to score	102 flights, too few to score	103 flights, too few to score	112 flights, too few to score	107 flights, too few to score
2 PM–3 PM	67.6% on time195 flights	72.2% on time194 flights	73.1% on time188 flights	59.8% on time194 flights	63.4% on time196 flights	70.3% on time188 flights	59.0% on time197 flights
3 PM–4 PM	64.6% on time284 flights	68.2% on time287 flights	70.0% on time285 flights	61.6% on time282 flights	66.8% on time286 flights	72.2% on time237 flights	50.2% on time266 flights
4 PM–5 PM	69.5% on time168 flights	68.9% on time172 flights	70.9% on time175 flights	64.3% on time173 flights	60.1% on time168 flights	69.7% on time170 flights	52.5% on time194 flights
5 PM–6 PM	56.2% on time212 flights	65.2% on time214 flights	59.4% on time214 flights	51.0% on time212 flights	57.1% on time219 flights	71.9% on time190 flights	50.5% on time214 flights
6 PM–7 PM	110 flights, too few to score	101 flights, too few to score	107 flights, too few to score	99 flights, too few to score	106 flights, too few to score	110 flights, too few to score	100 flights, too few to score
7 PM–8 PM	61.1% on time312 flights	67.3% on time311 flights	59.0% on time304 flights	57.0% on time310 flights	60.4% on time314 flights	68.2% on time183 flights	47.6% on time312 flights
8 PM–9 PM	67.3% on time180 flights	71.3% on time178 flights	67.9% on time178 flights	61.5% on time176 flights	64.7% on time178 flights	61.5% on time128 flights	64.2% on time177 flights

By departure window

5–9 AM89.0%

9 AM–12 PM78.6%

12–3 PM69.6%

3–6 PM62.9%

6–9 PM61.4%

9 PM–5 AM—

By departure hour

12 AM

3 AM

6 AM

9 AM

12 PM

3 PM

6 PM

9 PM

Departure windows with fewer than 120 flights are not scored.

Why MIA → LGA runs late

July 2023 – July 2026

Late-arriving aircraft36.1%

the inbound aircraft was late, so this flight started late

The airline29.3%

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

Air traffic control29.0%

airspace and airport capacity, including weather-driven flow control

Weather5.3%

weather severe enough to stop this flight specifically

Security0.2%

screening or terminal security incidents

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

Late-arriving aircraft is the largest cause on MIA → LGA, at 36.1%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 89.0% of the time and 6–9 PM departures 61.4%.

How this route holds up in bad weather

July 2023 – July 2026

Bad weather raises cancellations by a similar amount at both ends of MIA to LGA: 3.3 times the normal rate at MIA and 4.1 times at LGA. Cancelled in bad weather against normal hours: MIA 4.5% against 1.3%, LGA 9.0% against 2.2%. Flights that did leave MIA in bad weather arrived on time 50.6% of the time, against 74.1% in normal hours.

Bad weather and normal hours at the airports

Scheduled departures, July 2023 – July 2026

Departures from MIA and LGA in hours of bad weather and in normal hours
Departures from	MIA	LGA
Cancelled in bad weather	4.5%	9.0%
Cancelled in normal hours	1.3%	2.2%
Arrived on time, bad weather	50.6%	63.6%
Arrived on time, normal hours	74.1%	80.9%
Departures in bad weather	15,746	56,339

Of the carriers on this route, Delta Air Lines (2.0% cancelled against 4.7% for the other carriers at MIA) cancelled the fewest departures from MIA in bad weather and American Airlines (5.4% cancelled against 4.2% for the other carriers at MIA) the most.

This route’s airlines in bad weather at MIA

All departures from MIA

Cancellation rates in bad weather at MIA for the airlines that fly MIA to LGA, against the other carriers at MIA in the same months
Airline	Bad-weather departures	Cancelled	Other carriers
Delta Air Lines	1,774	2.0%below the others	4.7%
Frontier Airlines	557	3.9%about level	4.2%
Spirit Airlines	766	4.8%about level	4.4%
American Airlines	8,534	5.4%above the others	4.2%

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

Weather source and limits. In full: MIA (airlines), LGA, 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	10,391	69.5%	2.66%	-2 min	12.3%
Delta Air Lines	5,616	74.4%	2.42%	-6 min	10.1%
Spirit Airlines	1,438	69.8%	3.89%	-3 min	14.3%
Frontier Airlines	400	69.6%	4.75%	-5 min	12.6%

American Airlines flew 58.2% of the 17,845 flights listed. Frontier Airlines cancelled 4.75% of its flights here against 2.42% for Delta Air Lines.

Delta Air Lines arrived on time 4.9 percentage points more often than American Airlines on this route.

Other ways to fly Miami to New York

Airport pairs in the same two city markets, as the DOT defines them.

Other ways to fly Miami to New York
Route	Flights	On time	Cancelled	Median delay	Score
MIA→LGA this route Miami to New York	17,929	71.1%	2.72%	-4 min	42
MIA→JFK Miami to New York	15,830	71.5%	2.14%	-4 min	42
FLL→EWR Fort Lauderdale to Newark	15,386	72.9%	2.65%	-6 min	43
FLL→LGA Fort Lauderdale to New York	14,066	71.6%	2.63%	-4 min	43
MIA→EWR Miami to Newark	12,771	72.4%	2.66%	-5 min	42
FLL→JFK Fort Lauderdale to New York	11,942	71.8%	2.84%	-4 min	40

Flying to LGA from the Miami area? Compare MIA, FLL for LGA, with the same test for what counts as a real difference.

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
DL2387 Delta Air Lines	7:00 AM	784	90.7%
AA1389 American Airlines	8:50 PM	744	63.5%
DL2346 Delta Air Lines	3:45 PM	622	67.7%

DL2387 (7:00 AM) arrived on time 90.7% of the time, 27.2 points more often than AA1389 (8:50 PM) at 63.5%.

Weekly and seasonal patterns

By day of week

Mon70.8%

Tue75.3%

Wed74.5%

Thu68.8%

Fri70.2%

Sat73.9%

Sun64.3%

Tuesday is historically the most reliable day and Sunday the least, a gap of 11.0 percentage points.

By month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

July is historically the weakest month and September the strongest, a spread of 20.3 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 67.6% against 72.9% in the 12 months before — declining by 5.3 percentage points.

Data and methodology

Calculated by FlyerIntel from 17,929 MIA → LGA 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

MIA airport LGA airport Return direction LGA → MIA

MIA→LGA

Right now

Route reliability

What stands out

Why MIA → LGA 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 MIA → LGA 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 MIA

Airlines on this route

Other ways to fly Miami to New York

Flights on this route

Weekly and seasonal patterns

By day of week

By month

Reliability over time

Data and methodology