Miami (MIA) to New York (JFK): On-Time Performance
Data through July 2026
Miami (MIA) to New York (JFK) effectively runs on two schedules. In October 2024, 90% of arrivals were on time; in July 2026 that fell to 60% — a 29-point seasonal swing. Across the full period the route averages 72% on-time against a national 78%. Morning departures also hold up better than evening ones (86% vs 59%), which matters most in the rough months.
- On-time
- 72%
- arrived <15 min late
- Avg delay
- 23 min
- completed flights
- Cancelled
- 2.3%
- Flights/day
- 12
- last 12 months
- Duration
- 3h 6m
- scheduled
- Distance
- 1,089 mi
Best airline from MIA to JFK
4 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Frontier Airlinesmost reliable | 78% | 21 min | 1.7% | 351 |
| American Airlines | 73% | 22 min | 2.3% | 5,639 |
| Delta Air Lines | 71% | 25 min | 2.4% | 3,309 |
| JetBlue Airways | 71% | 29 min | 1.8% | 952 |
Monthly on-time trend
Best time to fly from MIA to JFK
Aim for departures around 6 a.m. (91% on-time); avoid 8 p.m. departures (52%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 71% | 26 min |
| Tuesday | 76% | 20 min |
| Wednesdaybest | 78% | 19 min |
| Thursday | 72% | 23 min |
| Friday | 72% | 20 min |
| Saturday | 72% | 24 min |
| Sunday | 65% | 31 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft38%
- Airline operations31%
- National airspace system26%
- Weather6%
Frequently asked questions
- How often are flights from MIA to JFK delayed?
- 28% of MIA–JFK flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 23 minutes.
- Which airline is most reliable from MIA to JFK?
- Frontier Airlines has the best on-time record on this route at 78%, based on 351 flights. 4 airlines flew MIA–JFK frequently enough to compare in this period.
- What is the best time of day to fly from MIA to JFK?
- Departures around 6 a.m. have the best record (91% on-time), while departures around 8 p.m. have the worst (52%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from MIA to JFK?
- The scheduled MIA–JFK flight time averages 3h 6m over 1,089 miles. Actual arrival times vary — flights on this route land 15+ minutes late 28% of the time.
- How often are MIA to JFK flights cancelled?
- 2.3% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from MIA to JFK?
- July 2026 was the roughest month in this dataset, with only 60% of arrivals on time. The best was October 2024 at 90%. If your dates are flexible, that 29-point gap is worth planning around.
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Based on 10,255 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.