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7,750 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 92% depart on time. After 4 pm it’s 62%.

Best time to leave 6–7 am 94% arrive on time from BOS
Best single flight UA 1414 BOS 06:00 → ORD 07:58 · 95% on time Avoid UA 1015 BOS 18:43 → ORD 20:40 · 51% 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
BOS
92
96
90
90
89
84
79
82
75
75
63
72
61
61
52
53
% 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.
United 2,733 77% 2.0% 88 min
American (incl. Envoy, Republic) 3,160 74% 3.5% 96 min
JetBlue 544 71% 2.8% 74 min
Delta (incl. Republic) 1,313 67% 4.3% 76 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.
UA 1414 BOS 06:00 ORD 07:58 95%
AA 1239 BOS 08:58 ORD 11:00 93%
AA 1509 BOS 07:00 ORD 09:01 90%
UA 1349 BOS 09:50 ORD 11:43 87%
UA 1732 BOS 12:30 ORD 14:23 85%
· · ·
B6 811 BOS 17:20 ORD 19:25 58%
UA 2040 BOS 17:00 ORD 19:00 55%
UA 1015 BOS 18:43 ORD 20:40 51%
All 29 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.
United BOS ORD 2h 58m 77% 2.0% 2,733 Flying now
American BOS ORD 3h 10m 74% 3.5% 3,160 Flying now
JetBlue BOS ORD 3h 05m 71% 2.8% 544 Flying now
Delta BOS ORD 3h 03m 67% 4.3% 1,313 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