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Showing American only (incl. its regional partners)All airlines ×
3,160 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 3 in 5.

Best time to leave 6–7 am 93% arrive on time from BOS
Best single flight AA 1239 BOS 08:58 → ORD 11:00 · 93% on time Avoid AA 3711 BOS 13:56 → ORD 15:59 · 81% 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
BOS
92
97
90
92
81
81
72
73
73
77
57
71
59
65
52
% 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.

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 1239 BOS 08:58 ORD 11:00 93%
AA 1509 BOS 07:00 ORD 09:01 90%
AA 3711flown by Envoy BOS 13:56 ORD 15:59 81%

All 11 American 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 3324 BOS 05:10 ORD 07:04 2h 54m 137 92% 2.2% 72 min
AA 1509 BOS 07:00 ORD 09:01 3h 01m 206 90% 0.5% 98 min
AA 1239 BOS 08:58 ORD 11:00 3h 02m 165 93% 1.2% 118 min
AA 3022 BOS 10:29 ORD 12:30 3h 00m 71 91% 0.0% 211 min
AA 1610 BOS 12:01 ORD 14:02 3h 01m 71 91% 1.4% 178 min
AA 4386flown by Republic BOS 13:01 ORD 15:10 3h 09m 72 80% 4.2% 160 min
AA 3711flown by Envoy BOS 13:56 ORD 15:59 3h 05m 216 81% 2.8% 127 min
AA 872 BOS 15:10 ORD 17:20 3h 10m 42 62% 4.8% 109 min
AA 1563 BOS 15:20 ORD 17:30 3h 10m 30 52% 3.3% 153 min
AA 1592 BOS 17:38 ORD 19:59 3h 21m 72 38% 8.3% 78 min
AA 1554 BOS 18:31 ORD 21:00 3h 29m 72 61% 6.9% 118 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 ORD 3h 10m 74% 3.5% 3,160 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