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5,676 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 64%.

Best time to leave 6–7 am 90% arrive on time from JFK
Best single flight DL 5765 JFK 06:00 → BOS 07:24 · 92% on time Avoid B6 618 JFK 15:55 → BOS 17:22 · 59% 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
91
92
89
85
85
88
74
71
70
59
53
63
67
58
66
71
59
% 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
Boston flights leaving JFK 9–10 pm: 2Close ×
DL 2639 JFK 21:00 BOS 22:41 1h 41m 349 71% 3.4% 97 min
AA 4634flown by Republic JFK 21:30 BOS 22:59 1h 24m 72 70% 11.1% 74 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. Republic) 1,791 77% 3.7% 84 min
American (incl. Republic) 1,466 76% 5.0% 75 min
JetBlue 2,419 70% 4.3% 78 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 5765flown by Republic JFK 06:00 BOS 07:24 92%
AA 4376flown by Republic JFK 08:24 BOS 09:48 89%
DL 5733flown by Republic JFK 09:50 BOS 11:15 86%
DL 5595flown by Republic JFK 14:30 BOS 16:08 79%
DL 2639 JFK 21:00 BOS 22:41 71%
· · ·
DL 5798flown by Republic JFK 17:30 BOS 19:14 63%
B6 1118 JFK 13:20 BOS 14:43 63%
B6 618 JFK 15:55 BOS 17:22 59%
All 17 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 BOS 1h 25m 77% 3.7% 1,791 Flying now
American JFK BOS 1h 20m 76% 5.0% 1,466 Flying now
JetBlue JFK BOS 1h 23m 70% 4.3% 2,419 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