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Showing United only (incl. its regional partners)All airlines ×
2,733 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 95% depart on time. After 4 pm it’s 2 in 3.

Best time to leave 6–7 am 95% 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).

6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
BOS
97
93
93
91
87
90
90
73
84
74
60
51
% 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.
UA 1414 BOS 06:00 ORD 07:58 95%
UA 1349 BOS 09:50 ORD 11:43 87%
UA 1732 BOS 12:30 ORD 14:23 85%
UA 2040 BOS 17:00 ORD 19:00 55%
UA 1015 BOS 18:43 ORD 20:40 51%

All 12 United 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.
UA 1414 BOS 06:00 ORD 07:58 2h 58m 337 95% 2.4% 44 min
UA 2631 BOS 07:19 ORD 09:17 2h 58m 37 91% 5.4% 31 min
UA 366 BOS 07:19 ORD 09:17 2h 58m 58 95% 1.7% 47 min
UA 1834 BOS 08:15 ORD 10:12 2h 57m 66 92% 0.0% 41 min
UA 1349 BOS 09:50 ORD 11:43 2h 53m 277 87% 1.8% 71 min
UA 503 BOS 10:35 ORD 12:28 2h 53m 135 86% 0.0% 173 min
UA 1732 BOS 12:30 ORD 14:23 2h 53m 353 85% 1.1% 112 min
UA 1691 BOS 15:08 ORD 17:00 2h 52m 35 68% 0.0% 98 min
UA 1475 BOS 15:13 ORD 17:05 2h 52m 37 65% 0.0% 151 min
UA 2040 BOS 17:00 ORD 19:00 3h 00m 361 55% 2.5% 70 min
UA 1015 BOS 18:43 ORD 20:40 2h 57m 302 51% 5.0% 85 min
UA 2229 BOS 20:15 ORD 22:15 3h 00m 137 57% 1.5% 122 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.
United BOS ORD 2h 58m 77% 2.0% 2,733 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