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2,633 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 6–7 am 95% arrive on time from JFK
Best single flight DL 5223 JFK 08:00 → BUF 09:41 · 89% on time Avoid B6 1202 JFK 17:29 → BUF 19:05 · 64% 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).

6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
JFK
95
91
84
88
80
71
74
54
72
60
71
% 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
Buffalo flights leaving JFK 10–11 pm: 2Close ×
B6 102 JFK 22:29 BUF 00:13 1h 44m 281 65% 6.0% 82 min
DL 5264flown by Endeavor JFK 22:40 BUF 00:38 1h 58m 347 83% 8.4% 81 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 (incl. Endeavor) 1,415 82% 6.1% 71 min
JetBlue 1,218 75% 5.2% 86 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 5223flown by Endeavor JFK 08:00 BUF 09:41 89%
B6 1602 JFK 06:35 BUF 08:00 89%
DL 5264flown by Endeavor JFK 22:40 BUF 00:38 83%
DL 5296flown by Endeavor JFK 13:29 BUF 15:09 82%
B6 2902 JFK 13:25 BUF 14:55 82%
· · ·
DL 5250flown by Endeavor JFK 17:29 BUF 19:25 74%
B6 102 JFK 22:29 BUF 00:13 65%
B6 1202 JFK 17:29 BUF 19:05 64%
All 9 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.
Delta JFK BUF 1h 41m 82% 6.1% 1,415 Flying now
JetBlue JFK BUF 1h 31m 75% 5.2% 1,218 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