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5,191 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 87% depart on time. After 4 pm it’s 7 in 10.

Best time to leave 5–6 am 92% arrive on time from STL
Best single flight UA 4423 STL 07:20 → ORD 09:00 · 86% on time Avoid UA 4395 STL 11:25 → ORD 13:03 · 71% 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
STL
89
87
89
84
79
75
74
71
69
74
76
64
78
72
66
61
% 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.
American (incl. Envoy, SkyWest, Republic) 2,114 74% 3.7% 108 min
United (incl. GoJet, SkyWest, Republic) 3,077 72% 2.8% 95 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 4423flown by GoJet STL 07:20 ORD 09:00 86%
UA 4183flown by GoJet STL 08:00 ORD 09:35 72%
UA 4395flown by GoJet STL 11:25 ORD 13:03 71%

All 22 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 2805 STL 06:00 ORD 07:30 1h 30m 37 89% 0.0% 71 min
UA 1008 STL 06:00 ORD 07:30 1h 30m 35 89% 0.0% 97 min
AA 1926 STL 06:55 ORD 08:23 1h 28m 90 74% 2.2% 89 min
AA 2324 STL 07:03 ORD 08:30 1h 27m 45 80% 8.9% 134 min
UA 4423flown by GoJet STL 07:20 ORD 09:00 1h 40m 327 86% 0.6% 74 min
UA 4183flown by GoJet STL 08:00 ORD 09:35 1h 35m 214 72% 0.5% 72 min
UA 4567flown by GoJet STL 08:10 ORD 09:45 1h 35m 20 95% 0.0% 20 min
AA 4104flown by Envoy STL 09:08 ORD 10:36 1h 28m 71 94% 0.0% 190 min
UA 5572flown by SkyWest STL 09:20 ORD 10:52 1h 32m 62 74% 0.0% 71 min
UA 4517flown by GoJet STL 10:20 ORD 11:52 1h 32m 72 90% 1.4% 42 min
UA 4395flown by GoJet STL 11:25 ORD 13:03 1h 38m 323 71% 2.8% 110 min
UA 1382 STL 13:13 ORD 14:43 1h 30m 72 71% 2.8% 94 min
AA 6352flown by SkyWest STL 13:27 ORD 14:59 1h 34m 72 65% 5.6% 193 min
AA 6447flown by SkyWest STL 14:26 ORD 15:59 1h 33m 15 67% 0.0% 134 min
AA 3815flown by Envoy STL 14:32 ORD 15:59 1h 28m 67 76% 1.5% 114 min
UA 4536flown by GoJet STL 15:22 ORD 17:00 1h 38m 35 68% 11.4% 102 min
UA 4452flown by GoJet STL 15:22 ORD 17:00 1h 38m 37 63% 5.4% 70 min
AA 4537flown by Republic STL 17:19 ORD 19:12 1h 53m 72 79% 8.3% 70 min
UA 1639 STL 17:59 ORD 19:30 1h 31m 72 66% 5.6% 129 min
UA 4411flown by GoJet STL 19:05 ORD 20:35 1h 30m 32 62% 9.4% 73 min
UA 4165flown by GoJet STL 19:05 ORD 20:39 1h 34m 35 70% 5.7% 90 min
AA 4144flown by Envoy STL 20:14 ORD 21:45 1h 37m 72 59% 8.3% 50 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.
American STL ORD 1h 29m 74% 3.7% 2,114 Flying now
United STL ORD 1h 30m 72% 2.8% 3,077 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