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4,529 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 7 in 10.

Best time to leave 5–6 am 94% arrive on time from JFK
Best single flight DL 1528 JFK 07:05 → MIA 10:21 · 86% on time Avoid DL 1428 JFK 19:52 → MIA 23:33 · 70% on time

Time of day × airport

Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).

5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
JFK
94
89
90
79
81
80
82
75
81
77
76
75
72
71
65
53
% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55
Miami flights leaving JFK 9–10 pm: 1Close ×
AA 2026 JFK 21:00 MIA 00:21 3h 21m 72 59% 11.1% 120 min

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
Frontier 243 82% 2.1% 99 min
American 2,665 78% 2.7% 112 min
Delta 1,621 77% 3.3% 76 min

Flights, best and worst

Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.
DL 1528 JFK 07:05 MIA 10:21 86%
AA 2017 JFK 07:30 MIA 10:45 85%
DL 1514 JFK 11:05 MIA 14:21 78%
AA 688 JFK 17:25 MIA 20:59 76%
AA 1174 JFK 18:50 MIA 22:22 74%
· · ·
DL 2500 JFK 15:14 MIA 18:54 72%
DL 1428 JFK 19:52 MIA 23:33 70%
All 12 flights on this route →

Nonstops by airline and airport

Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.
American JFK MIA 3h 17m 78% 2.7% 2,665 Flying now
Delta JFK MIA 3h 20m 77% 3.3% 1,621 Flying now
Frontier JFK MIA 3h 18m 82% 2.1% 243 Not flying now
Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON