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7,755 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 56%.

Best time to leave 6–7 am 91% arrive on time from ORD
Best single flight DL 2570 ORD 10:29 → BOS 13:59 · 76% on time Avoid AA 3107 ORD 19:20 → BOS 22:53 · 56% 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
ORD
92
89
83
80
76
71
69
62
65
53
54
54
62
56
49
60
% 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.
JetBlue 545 73% 3.3% 100 min
Delta (incl. Republic) 1,313 71% 4.3% 87 min
United 2,735 70% 2.0% 80 min
American (incl. Envoy, Republic) 3,162 66% 3.3% 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 2570 ORD 10:29 BOS 13:59 76%
B6 312 ORD 10:56 BOS 14:23 74%
B6 1012 ORD 20:20 BOS 23:51 71%
UA 1779 ORD 21:41 BOS 01:14 68%
DL 2646 ORD 19:25 BOS 23:00 65%
· · ·
UA 1693 ORD 13:55 BOS 17:31 64%
AA 2682 ORD 20:29 BOS 00:05 62%
AA 3107 ORD 19:20 BOS 22:53 56%
All 27 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.
JetBlue ORD BOS 2h 31m 73% 3.3% 545 Flying now
Delta ORD BOS 2h 30m 71% 4.3% 1,313 Flying now
United ORD BOS 2h 31m 70% 2.0% 2,735 Flying now
American ORD BOS 2h 28m 66% 3.3% 3,162 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