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Route on-time record

LGA to MIA: most on-time flights and the best time to fly

New York (LaGuardia Airport) to Miami (Miami International Airport). 6,031 nonstop flights in Jun 2025 to May 2026, 70% arrived within 15 minutes and 4.2% were cancelled. The most reliable flight number was American 1249 at 6:00 AM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

LGA → MIA

New York to Miami: 6,031 nonstop flights a year

On time (12 months)

70%

Cancelled

4.2%

avg delay 28 min

Best time to leave

Before 9 AM

87% on time vs 58% 3 to 6 PM

Most reliable airline

American

68% chance on time

Check LGA to MIA fares

Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Most reliable nonstop flights

Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.

  1. #1 · American 1249

    6:00 AM → 9:15 AM3h 15m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 2510; its record covers all of them.

    89%

    chance on time

    On time (history)
    93%
    Cancelled
    3.7%
    Avg arrival delay
    8 min
    • Arrived on time 93% of the time (312 flights, Jun 2025 to May 2026).
    • Cancelled 3.7% of the time (12 of 324).
    • Leaves in this route's most on-time window (Before 9 AM: 87% on time; 3 to 6 PM: 58%).
    • Departs outside LGA's trouble window (noon to 6 PM, when 54% of its 285 ground stops and delay programs started).

    Strong track record · 312 flights

    Find American 1249 fares Opens this date on Aviasales

  2. #2 · Delta 2347

    7:00 AM → 10:24 AM3h 12m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    83%

    chance on time

    On time (history)
    88%
    Cancelled
    4.9%
    Avg arrival delay
    7 min
    • Arrived on time 88% of the time (346 flights, Jun 2025 to May 2026).
    • Cancelled 4.9% of the time (18 of 365).
    • Leaves in this route's most on-time window (Before 9 AM: 87% on time; 3 to 6 PM: 58%).
    • Departs outside LGA's trouble window (noon to 6 PM, when 54% of its 285 ground stops and delay programs started).

    Strong track record · 346 flights

    Find Delta 2347 fares Opens this date on Aviasales

  3. #3 · American 1530

    7:00 AM → 10:14 AM3h 14m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 1286, 2692; its record covers all of them.

    82%

    chance on time

    On time (history)
    86%
    Cancelled
    4.1%
    Avg arrival delay
    15 min
    • Arrived on time 86% of the time (347 flights, Jun 2025 to May 2026).
    • Cancelled 4.1% of the time (15 of 362).
    • Leaves in this route's most on-time window (Before 9 AM: 87% on time; 3 to 6 PM: 58%).
    • Departs outside LGA's trouble window (noon to 6 PM, when 54% of its 285 ground stops and delay programs started).

    Strong track record · 347 flights

    Find American 1530 fares Opens this date on Aviasales

  4. #4 · American 970

    7:59 AM → 11:16 AM3h 17m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 1222; its record covers all of them.

    81%

    chance on time

    On time (history)
    84%
    Cancelled
    3.3%
    Avg arrival delay
    15 min
    • Arrived on time 84% of the time (348 flights, Jun 2025 to May 2026).
    • Cancelled 3.3% of the time (12 of 362).
    • Leaves in this route's most on-time window (Before 9 AM: 87% on time; 3 to 6 PM: 58%).
    • Departs outside LGA's trouble window (noon to 6 PM, when 54% of its 285 ground stops and delay programs started).

    Strong track record · 348 flights

    Find American 970 fares Opens this date on Aviasales

  5. #5 · American 1445

    11:34 AM → 2:53 PM3h 19m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    72%

    chance on time

    On time (history)
    82%
    Cancelled
    0.0%
    Avg arrival delay
    12 min
    • Arrived on time 82% of the time (38 flights, Jun 2025 to May 2026).
    • Never cancelled in 38 scheduled flights.
    • Departs outside LGA's trouble window (noon to 6 PM, when 54% of its 285 ground stops and delay programs started).
    • Lands inside MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.

    Limited track record · 38 flights

    Find American 1445 fares Opens this date on Aviasales

  6. #6 · American 3211

    9:30 AM → 12:48 PM3h 18m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    72%

    chance on time

    On time (history)
    73%
    Cancelled
    0.8%
    Avg arrival delay
    63 min
    • Arrived on time 73% of the time (131 flights, Jun 2025 to May 2026).
    • Departs outside LGA's trouble window (noon to 6 PM, when 54% of its 285 ground stops and delay programs started).
    • 70% of its delay minutes came from the plane arriving late from an earlier flight.

    Moderate track record · 131 flights

    Find American 3211 fares Opens this date on Aviasales

  7. #7 · Spirit 1441

    9:59 AM → 1:04 PM3h 05m nonstop

    Local times, typical schedule. Last flown 2026-05-01.

    72%

    chance on time

    On time (history)
    88%
    Cancelled
    0.0%
    Avg arrival delay
    10 min
    • Arrived on time 88% of the time (17 flights, Jun 2025 to May 2026).
    • Departs outside LGA's trouble window (noon to 6 PM, when 54% of its 285 ground stops and delay programs started).
    • Lands inside MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.
    • Short track record (17 flights), so its score leans on the airline's record at this hour.

    Limited track record · 17 flights

    Find Spirit 1441 fares Opens this date on Aviasales

  8. #8 · American 605

    1:05 PM → 4:24 PM3h 19m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 1643, 2927; its record covers all of them.

    70%

    chance on time

    On time (history)
    72%
    Cancelled
    2.2%
    Avg arrival delay
    38 min
    • Arrived on time 72% of the time (354 flights, Jun 2025 to May 2026).
    • Departs inside LGA's trouble window: 54% of its 285 ground stops and delay programs started between noon and 6 PM.
    • Lands inside MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.
    • 52% of its delay minutes came from the plane arriving late from an earlier flight.

    Strong track record · 354 flights

    Find American 605 fares Opens this date on Aviasales

  9. #9 · Delta 1538

    11:07 AM → 2:26 PM3h 15m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    70%

    chance on time

    On time (history)
    76%
    Cancelled
    3.5%
    Avg arrival delay
    16 min
    • Arrived on time 76% of the time (82 flights, Jun 2025 to May 2026).
    • Cancelled 3.5% of the time (3 of 85).
    • Departs outside LGA's trouble window (noon to 6 PM, when 54% of its 285 ground stops and delay programs started).
    • Lands inside MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.

    Moderate track record · 82 flights

    Find Delta 1538 fares Opens this date on Aviasales

  10. #10 · American 2243

    11:14 AM → 2:32 PM3h 18m nonstop

    Local times, typical schedule. Last flown 2026-04-06.

    69%

    chance on time

    On time (history)
    70%
    Cancelled
    6.9%
    Avg arrival delay
    28 min
    • Arrived on time 70% of the time (27 flights, Jun 2025 to May 2026).
    • Departs outside LGA's trouble window (noon to 6 PM, when 54% of its 285 ground stops and delay programs started).
    • Lands inside MIA's trouble window: 49% of its 45 ground stops and delay programs started between 1 PM and 7 PM.
    • 69% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 27 flights

    Find American 2243 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • American Airlines68%

    3,545 flights · 71% on time as flown · 3.9% cancel

  • Delta Air Lines66%

    1,915 flights · 69% on time as flown · 3.9% cancel

  • Spirit Airlines64%

    448 flights · 67% on time as flown · 5.9% cancel

  • Frontier Airlines63%

    119 flights · 67% on time as flown · 6.8% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • Before 9 AM87%

    1,448 flights · avg delay 11 min

  • 9 AM to noon71%

    1,276 flights · avg delay 26 min

  • Noon to 3 PM70%

    562 flights · avg delay 35 min

  • 3 to 6 PM58%

    1,266 flights · avg delay 33 min

  • 6 to 9 PM62%

    1,414 flights · avg delay 34 min

Best day: Saturday (79%). Worst: Sunday (68%).

Smarter routing

Nearby airports that run more on time

  • EWR → MIA 74% chance on time

    Newark Liberty International Airport to Miami International Airport · 3,977 flights a year · 17 mi from your airports · yours: 67%

    Rank flightsFares

  • JFK → MIA 73% chance on time

    John F. Kennedy International Airport to Miami International Airport · 4,607 flights a year · 11 mi from your airports · yours: 67%

    Rank flightsFares

  • EWR → FLL 72% chance on time

    Newark Liberty International Airport to Fort Lauderdale Hollywood International Airport · 4,762 flights a year · 38 mi from your airports · yours: 67%

    Rank flightsFares

  • HPN → FLL 72% chance on time

    Westchester County Airport to Fort Lauderdale Hollywood International Airport · 883 flights a year · 43 mi from your airports · yours: 67%

    Rank flightsFares

On time by month

All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.

J
73
F
77
M
71
A
81
M
73
J
68
J
67
A
72
S
77
O
79
N
80
D
71

What delays this route

  • Late-arriving aircraft48%
  • Air traffic control and airport volume27%
  • Airline (crew, maintenance, boarding)21%
  • Severe weather5%

Share of delay minutes by the cause airlines report to the US DOT.

Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure

LGA to MIA questions

What time of day is best to fly LGA to MIA?
Before 9 AM: 87% of flights arrived on time, against 58% for departures 3 to 6 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
Which airline is most on time from LGA to MIA?
American, with a season-adjusted 68% chance of operating and arriving on time over 3,545 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
What is the worst month for delays on LGA to MIA?
July (67% on time); the best was April (81%), averaged over Jun 2023 to May 2026.
Is this a prediction for my flight?
No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.

More routes from LGA

Live status: FAA delays and ground stops