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3,384 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 93% depart on time. After 4 pm it’s 63%.

Best time to leave 5–6 am 96% arrive on time from BOS
Best single flight AA 1418 BOS 05:10 → MIA 08:38 · 96% on time Avoid DL 776 BOS 15:18 → MIA 19:04 · 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).

5
6
7
8
9
10
11
12
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19
BOS
96
95
91
93
81
80
75
74
68
60
63
64
65
% 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

Pick an hour to see this route’s flights leaving then.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
American (incl. Republic) 2,273 83% 1.7% 75 min
Delta 891 73% 2.6% 79 min
Spirit 185 56% 5.9% 84 min
JetBlue 35 – 0.0% 24 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.
AA 1418 BOS 05:10 MIA 08:38 96%
AA 873 BOS 06:00 MIA 09:30 90%
AA 1259 BOS 08:00 MIA 11:34 90%
DL 1399 BOS 07:05 MIA 10:39 86%
DL 776 BOS 15:18 MIA 19:04 64%

All 9 flights in the current schedule

Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.
AA 1418 BOS 05:10 MIA 08:38 3h 28m 209 96% 0.0% 42 min
AA 873 BOS 06:00 MIA 09:30 3h 30m 175 90% 1.1% 98 min
DL 1399 BOS 07:05 MIA 10:39 3h 30m 345 86% 2.0% 97 min
AA 1259 BOS 08:00 MIA 11:34 3h 34m 312 90% 1.6% 80 min
AA 815 BOS 10:56 MIA 14:30 3h 34m 56 88% 0.0% 46 min
AA 1589 BOS 13:42 MIA 17:22 3h 35m 66 78% 0.0% 193 min
AA 1565 BOS 15:15 MIA 18:58 3h 43m 72 69% 1.4% 57 min
DL 776 BOS 15:18 MIA 19:04 3h 46m 363 64% 1.7% 72 min
AA 1562 BOS 17:55 MIA 21:35 3h 40m 72 79% 1.4% 105 min

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 BOS MIA 3h 40m 83% 1.7% 2,273 Flying now
Delta BOS MIA 3h 44m 73% 2.6% 891 Flying now
Spirit BOS MIA 3h 32m 56% 5.9% 185 Not flying now
JetBlue BOS MIA 3h 29m 80%few flights 0.0% 35 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