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3,359 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 88% depart on time. After 4 pm it’s barely half.

Best time to leave 6–7 am 83% arrive on time from BOS
Best single flight B6 569 BOS 06:10 → FLL 09:32 · 82% on time Avoid B6 269 BOS 12:30 → FLL 15:56 · 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).

5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
BOS
84
92
87
88
80
76
69
69
58
66
70
61
52
44
58
58
40
% 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
Fort Lauderdale flights leaving BOS 3–4 pm: 1Close ×
DL 2196 BOS 15:07 FLL 18:36 3h 29m 334 62% 1.8% 79 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 886 70% 3.0% 79 min
JetBlue 1,963 67% 3.3% 68 min
Spirit 510 65% 5.7% 83 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.
B6 569 BOS 06:10 FLL 09:32 82%
DL 1401 BOS 07:59 FLL 11:26 82%
B6 69 BOS 11:26 FLL 14:50 68%
DL 2196 BOS 15:07 FLL 18:36 62%
B6 369 BOS 17:31 FLL 20:59 62%
· · ·
B6 269 BOS 12:30 FLL 15:56 59%
All 10 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 BOS FLL 3h 29m 70% 3.0% 886 Flying now
JetBlue BOS FLL 3h 30m 67% 3.3% 1,963 Flying now
Spirit BOS FLL 3h 29m 65% 5.7% 510 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