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1,560 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 8–9 am 83% arrive on time from JFK
Best single flight DL 532 JFK 08:25 → DEN 10:55 · 85% on time Avoid B6 97 JFK 20:16 → DEN 22:59 · 60% 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).

7
8
9
10
11
12
13
14
15
16
17
18
19
20
JFK
86
91
74
75
73
71
63
% 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
Denver flights leaving JFK 8–9 pm: 1Close ×
B6 97 JFK 20:16 DEN 22:59 4h 42m 254 60% 4.3% 64 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.
Delta 966 75% 2.3% 70 min
JetBlue 545 70% 4.0% 62 min
Frontier 49 – 0.0% 124 min

Dimmed: fewer than 150 flights in the year, too few to rank.

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 532 JFK 08:25 DEN 10:55 85%
B6 1497 JFK 10:30 DEN 13:11 83%
DL 457 JFK 15:59 DEN 18:45 75%
DL 424 JFK 19:50 DEN 22:45 70%
B6 97 JFK 20:16 DEN 22:59 60%

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.
Delta JFK DEN 4h 34m 75% 2.3% 966 Flying now
JetBlue JFK DEN 4h 41m 70% 4.0% 545 Flying now
Frontier JFK DEN 4h 40m 67% 0.0% 49 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