Route on-time record

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

New York (John F. Kennedy International Airport) to Miami (Miami International Airport). 4,607 nonstop flights in Jun 2025 to May 2026, 76% arrived within 15 minutes and 3.0% were cancelled. The most reliable flight number was American 2017 at 8:00 AM.

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

JFK → MIA

New York to Miami: 4,607 nonstop flights a year

On time (12 months)

76%

Cancelled

3.0%

avg delay 22 min

Best time to leave

Before 9 AM

86% on time vs 66% 6 to 9 PM

Most reliable airline

Frontier

76% chance on time

Check JFK to MIA fares

Lowest nonstop fare seen in the next two months: $151 (American 1922 on 2026-10-19). 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 · American 2017
8:00 AM → 11:20 AM3h 20m nonstop
Local times, typical schedule. Last flown 2026-05-31.
83%
chance on time
On time (history)
86%
Cancelled
2.2%
Avg arrival delay
14 min
- Arrived on time 86% of the time (357 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 86% on time; 6 to 9 PM: 66%).
- Departs outside JFK's trouble window (1 PM to 7 PM, when 66% of its 167 ground stops and delay programs started).
Strong track record · 357 flights
Find American 2017 fares Opens this date on Aviasales
#2 · American 3238
6:29 AM → 9:44 AM3h 15m nonstop
Local times, typical schedule. Last flown 2026-05-20.
83%
chance on time
On time (history)
90%
Cancelled
0.0%
Avg arrival delay
9 min
- Arrived on time 90% of the time (48 flights, Jun 2025 to May 2026).
- Never cancelled in 48 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 86% on time; 6 to 9 PM: 66%).
- Departs outside JFK's trouble window (1 PM to 7 PM, when 66% of its 167 ground stops and delay programs started).
Limited track record · 48 flights
Find American 3238 fares Opens this date on Aviasales
#3 · American 655
5:35 AM → 8:46 AM3h 11m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 1758; its record covers all of them.
83%
chance on time
On time (history)
84%
Cancelled
2.3%
Avg arrival delay
30 min
- Arrived on time 84% of the time (167 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 86% on time; 6 to 9 PM: 66%).
- Departs outside JFK's trouble window (1 PM to 7 PM, when 66% of its 167 ground stops and delay programs started).
Moderate track record · 167 flights
Find American 655 fares Opens this date on Aviasales
#4 · American 1032
10:15 AM → 1:29 PM3h 14m nonstop
Local times, typical schedule. Last flown 2026-05-20.
81%
chance on time
On time (history)
87%
Cancelled
2.6%
Avg arrival delay
22 min
- Arrived on time 87% of the time (150 flights, Jun 2025 to May 2026).
- Departs outside JFK's trouble window (1 PM to 7 PM, when 66% of its 167 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.
- 64% of its delay minutes came from the plane arriving late from an earlier flight.
Moderate track record · 150 flights
Find American 1032 fares Opens this date on Aviasales
#5 · American 683
11:55 AM → 3:13 PM3h 18m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
On time (history)
91%
Cancelled
0.0%
Avg arrival delay
22 min
- Arrived on time 91% of the time (54 flights, Jun 2025 to May 2026).
- Never cancelled in 55 scheduled flights.
- Departs outside JFK's trouble window (1 PM to 7 PM, when 66% of its 167 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 · 54 flights
Find American 683 fares Opens this date on Aviasales
#6 · Delta 1528
7:05 AM → 10:24 AM3h 13m nonstop
Local times, typical schedule. Last flown 2026-05-31.
80%
chance on time
On time (history)
83%
Cancelled
3.6%
Avg arrival delay
12 min
- Arrived on time 83% of the time (343 flights, Jun 2025 to May 2026).
- Cancelled 3.6% of the time (13 of 358).
- Leaves in this route's most on-time window (Before 9 AM: 86% on time; 6 to 9 PM: 66%).
- Departs outside JFK's trouble window (1 PM to 7 PM, when 66% of its 167 ground stops and delay programs started).
Strong track record · 343 flights
Find Delta 1528 fares Opens this date on Aviasales
#7 · American 1560
2:59 PM → 6:16 PM3h 17m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as American 1017; its record covers all of them.
80%
chance on time
On time (history)
86%
Cancelled
3.4%
Avg arrival delay
14 min
- Arrived on time 86% of the time (168 flights, Jun 2025 to May 2026).
- Cancelled 3.4% of the time (6 of 176).
- Departs inside JFK's trouble window: 66% of its 167 ground stops and delay programs started between 1 PM and 7 PM.
- 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 · 168 flights
Find American 1560 fares Opens this date on Aviasales
#8 · Delta 2003
1:10 PM → 4:30 PM3h 20m nonstop
Local times, typical schedule. Last flown 2026-05-06.
78%
chance on time
On time (history)
88%
Cancelled
3.3%
Avg arrival delay
13 min
- Arrived on time 88% of the time (58 flights, Jun 2025 to May 2026).
- Cancelled 3.3% of the time (2 of 60).
- Departs inside JFK's trouble window: 66% of its 167 ground stops and delay programs started between 1 PM and 7 PM.
- 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 · 58 flights
Find Delta 2003 fares Opens this date on Aviasales
#9 · Frontier 1809
11:02 AM → 2:21 PM3h 19m nonstop
Local times, typical schedule. Last flown 2026-04-13.
77%
chance on time
On time (history)
78%
Cancelled
2.3%
Avg arrival delay
24 min
- Arrived on time 78% of the time (297 flights, Jun 2025 to May 2026).
- Departs outside JFK's trouble window (1 PM to 7 PM, when 66% of its 167 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.
Strong track record · 297 flights
Find Frontier 1809 fares Opens this date on Aviasales
#10 · Delta 1514
11:10 AM → 2:20 PM3h 14m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
On time (history)
78%
Cancelled
1.9%
Avg arrival delay
14 min
- Arrived on time 78% of the time (354 flights, Jun 2025 to May 2026).
- Departs outside JFK's trouble window (1 PM to 7 PM, when 66% of its 167 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.
Strong track record · 354 flights
Find Delta 1514 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

Frontier Airlines76%
304 flights · 78% on time as flown · 2.5% cancel
American Airlines74%
2,656 flights · 76% on time as flown · 3.0% cancel
Delta Air Lines72%
1,620 flights · 74% on time as flown · 3.3% cancel

On time by departure time

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

Before 9 AM86%
1,309 flights · avg delay 15 min
9 AM to noon77%
944 flights · avg delay 22 min
Noon to 3 PM76%
625 flights · avg delay 19 min
3 to 6 PM68%
811 flights · avg delay 26 min
6 to 9 PM66%
907 flights · avg delay 33 min

Best day: Tuesday (79%). Worst: Sunday (69%).

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.

What delays this route

Late-arriving aircraft38%
Airline (crew, maintenance, boarding)34%
Air traffic control and airport volume23%
Severe weather4%

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

JFK to MIA questions

What time of day is best to fly JFK to MIA?: Before 9 AM: 86% of flights arrived on time, against 66% for departures 6 to 9 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 JFK to MIA?: Frontier, with a season-adjusted 76% chance of operating and arriving on time over 304 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 JFK to MIA?: July (63% on time); the best was November (84%), 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.

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