New York to Miami Flight Delays
Sample size: 16,071 JFK–MIA flights, January 2023 to December 2025 (BTS). 25.83% of New York to Miami flights arrived at least 15 minutes late. That is 1.6 points worse than the 24.2% median for those routes, so schedule padding matters here. Departure time moves the odds more than anything else on this route: 05:00 departures run 10.49% late against 39.92% for 19:00. Tuesday is the calmest day at 20.62%, Sunday the worst at 30.23%. Cancellations (2024 to 2025) peak in July at 4.82% of scheduled flights and bottom out in September at 0.26%. Last updated: 2026-10-01.
These figures are historical US domestic rates, not a forecast for one departure. Use the flight delay prediction before you book.
JFK airport delay guide · MIA airport delay guide · Predict a JFK to MIA flight
Best time to fly JFK to MIA
The best time to fly JFK to MIA is the 5 AM departure and fly on a Tuesday, not a Sunday (20.62% against 30.23%): 10.49% of 5 AM flights arrived 15+ minutes late, against 39.92% at 7 PM.
Lowest observed delay rates depart 05:00–07:00. The highest sit at 14:00, 16:00, 19:00. Only departure hours with at least 100 recorded flights are listed, so sparse hours are blank rather than estimated.
| Departure hour | Delayed 15+ min | Flights observed |
|---|---|---|
| 05:00 | 10.49% | 648 |
| 06:00 | 11.27% | 1,588 |
| 07:00 | 14.58% | 2,174 |
| 08:00 | 19.63% | 377 |
| 09:00 | 19.81% | 954 |
| 10:00 | 23.58% | 352 |
| 11:00 | 24.52% | 1,868 |
| 12:00 | 23.47% | 899 |
| 13:00 | 30.21% | 725 |
| 14:00 | 37.58% | 479 |
| 15:00 | 33.9% | 1,460 |
| 16:00 | 36.55% | 550 |
| 17:00 | 36.26% | 1,357 |
| 18:00 | 35.14% | 1,053 |
| 19:00 | 39.92% | 1,027 |
| 20:00 | 35.36% | 526 |
JFK to MIA flight time and distance
Scheduled gate-to-gate time from JFK to MIA is a median 3 h 15 min. Flights actually took a median 3 h 5 min gate to gate, including 2 h 32 min in the air. 5.4% ran 30 or more minutes over schedule and 70.2% arrived sooner than scheduled (BTS data, January 2023 to December 2025).
JFK to MIA is 1,089 miles (BTS data).
| Airline | Scheduled (median) | Actual (median) | In the air (median) | 30+ min over schedule | Flights |
|---|---|---|---|---|---|
| American Airlines | 3 h 15 min | 3 h 5 min | 2 h 32 min | 5.1% | 8,719 |
| Delta Air Lines | 3 h 17 min | 3 h 6 min | 2 h 32 min | 5.8% | 4,535 |
| JetBlue Airways | 3 h 15 min | 3 h 4 min | 2 h 33 min | 5.6% | 2,564 |
How late, and why
When a JFK to MIA flight was late (15+ minutes), it arrived an average of 77 minutes late (median 46). 10.4% of all completed flights arrived an hour or more late (BTS data, 2023 to 2025).
Of the delay minutes on late JFK to MIA flights, 34.3% were caused by the airline (crew, maintenance, ground handling), 32.5% by a late incoming aircraft, 29.6% by the air-traffic system (volume, non-extreme weather, airport operations), 3.0% by extreme weather and 0.5% by security (BTS data, 2023 to 2025).
| Cause | Share of delay minutes |
|---|---|
| airline | 34.3% |
| late incoming aircraft | 32.5% |
| air-traffic system | 29.6% |
| extreme weather | 3.0% |
| security | 0.5% |
BTS assigns causes to delay minutes on flights that arrived 15+ minutes late. "Air-traffic system" includes non-extreme weather that slows traffic.
JFK to MIA delays by day of week
| Day | Delayed 15+ min | Flights observed |
|---|---|---|
| Mon | 25.92% | 2,334 |
| Tue | 20.62% | 2,284 |
| Wed | 22.92% | 2,282 |
| Thu | 27.47% | 2,312 |
| Fri | 26.49% | 2,337 |
| Sat | 27.1% | 2,203 |
| Sun | 30.23% | 2,319 |
Month-by-month cancellation pattern
Share of scheduled JFK–MIA flights cancelled in each month, from BTS 2024–2025 on-time reporting. These are cancellations, not delays. Delay figures on this page cover January 2023 to December 2025.
| Month | Cancelled | Flights scheduled |
|---|---|---|
| Jan | 0.87% | 922 |
| Feb | 1.11% | 903 |
| Mar | 1.58% | 1,012 |
| Apr | 1.12% | 986 |
| May | 0.86% | 932 |
| Jun | 4.14% | 846 |
| Jul | 4.82% | 830 |
| Aug | 3.85% | 805 |
| Sep | 0.26% | 768 |
| Oct | 0.74% | 806 |
| Nov | 1.06% | 852 |
| Dec | 1.89% | 845 |
Airlines on JFK to MIA: delays and cancellations
American Airlines, Delta Air Lines, JetBlue Airways and Frontier Airlines fly this route today. Only carriers with at least 200 scheduled flights on the pairing are listed. Delay rates cover January 2023 to December 2025; cancellation rates cover 2024 to 2025.
| Airline | Share of flights | Delayed 15+ min | Cancelled | Flights scheduled |
|---|---|---|---|---|
| American Airlines | 53% | 22.75% | 1.86% | 5,580 |
| Delta Air Lines | 30% | 26.2% | 1.55% | 3,156 |
| JetBlue Airways | 14% | 35.65% | 2.25% | 1,512 |
| Frontier Airlines | 2% | 26.1% | 1.96% | 255 |
Related pages
- JFK delays: rate, worst hours and live risk
- MIA delays: rate, worst hours and live risk
- US airline cancellation rates
- Thanksgiving and Christmas 2026 flight delay guide
- Predict a JFK to MIA flight
Check your odds: Will my flight be delayed? · Will my flight be cancelled?
JFK vs MIA: airport conditions
Both ends of a route shape its delay profile. These are DelayGuard's operational scores for New York and Miami.
| Measure | JFK (New York) | MIA (Miami) |
|---|---|---|
| Congestion | high | high |
| Weather risk | moderate | moderate |
| NAS vulnerability | high | high |
| Average taxi-out | 28 min | 17 min |
| Runways | 4 | 4 |
JFK to MIA questions
- How long is the flight from New York to Miami?
- Scheduled gate-to-gate time from JFK to MIA is a median 3 h 15 min, and flights actually took a median 3 h 5 min including 2 h 32 min in the air. 5.4% ran 30+ minutes over schedule (BTS data, January 2023 to December 2025).
- How often do JFK to MIA flights get delayed?
- Across 16,071 recorded JFK–MIA departures, January 2023 to December 2025 (BTS), 25.83% arrived at least 15 minutes late. Departure time matters most: 5:00 departures run 10.49% late against 39.92% for 19:00. Actual delay frequency varies by airline, time of day, and season.
- What is the best time of year to fly JFK to MIA?
- New York (NY) sees its highest delays during December–February (winter weather) and June–August (summer storms). Miami (FL) peaks during June–September (convective/thunderstorm season). The dominant seasonal risk on this route sits at the origin (New York) — use the DelayGuard predictor to check conditions for your specific travel date.
- Which airline is most reliable on JFK to MIA?
- On JFK→MIA, American Airlines has the lowest measured delay rate at 22.75% of 8,719 flights, and JetBlue Airways the highest at 35.65% (BTS, January 2023 to December 2025). Delta Air Lines cancels the fewest at 1.55% (2024 to 2025). These are route-specific figures, not airline-wide averages.
- How late are JFK to MIA flights when they are delayed?
- When a JFK to MIA flight was late (15+ minutes), it arrived an average of 77 minutes late (median 46). 10.4% of all completed flights arrived an hour or more late (BTS data, 2023 to 2025).
- How accurate is DelayGuard's delay prediction for this route?
- DelayGuard's delay risk score comes from an ML model trained on BTS data (3.95 million US domestic flights, 2023 to mid-2025), with live weather data (within 5 days of departure) and FAA NAS advisories (within 6 hours) — a likelihood of delay, not a guarantee.
Delay figures reflect arrivals 15 or more minutes late in BTS on-time reporting. Cancellation figures are separate and count flights that never operated. Hours, days and months with fewer than 100 recorded flights are omitted rather than estimated.