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1,111 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

United is clearly ahead here: 83% of its flights arrive on time, 19 points better than American.

Best time to leave 8–9 am 86% arrive on time from BOI
Best single flight UA 5386 BOI 08:25 → ORD 13:10 · 85% 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).

7
8
9
10
11
12
13
14
15
BOI
81
94
84
62
72
% 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
Chicago flights leaving BOI 12–1 pm: 2Close ×
UA 451 BOI 12:30 ORD 17:04 3h 34m 35 68% 2.9% 112 min
UA 440 BOI 12:34 ORD 17:05 3h 31m 37 69% 0.0% 99 min

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 (incl. SkyWest) 733 83% 1.6% 79 min
American (incl. Envoy, SkyWest) 378 64% 0.3% 103 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 5386flown by SkyWest BOI 08:25 ORD 13:10 85%
All 4 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 BOI ORD 3h 39m 83% 1.6% 733 Flying now
American BOI ORD 3h 47m 64% 0.3% 378 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