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2,013 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 86% depart on time. After 4 pm it’s 68%.

Best time to leave 11 am–12 pm 90% arrive on time from ORD
Best single flight UA 5521 ORD 13:15 → COU 14:50 · 71% on time Avoid AA 3745 ORD 19:43 → COU 21:15 · 68% 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).

8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
ORD
86
79
92
69
76
74
74
83
65
67
65
63
76
% 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
Columbia flights leaving ORD 7–8 pm: 1Close ×
AA 3745flown by Envoy ORD 19:43 COU 21:15 1h 32m 303 68% 4.0% 73 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.
American (incl. Envoy, SkyWest) 1,136 75% 2.8% 66 min
United (incl. GoJet, SkyWest) 877 67% 4.8% 98 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 5521flown by SkyWest ORD 13:15 COU 14:50 71%
AA 3745flown by Envoy ORD 19:43 COU 21:15 68%
All 8 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.
American ORD COU 1h 31m 75% 2.8% 1,136 Flying now
United ORD COU 1h 35m 67% 4.8% 877 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