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Showing United only (incl. its regional partners)All airlines ×
3,080 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 2 in 3.

Best time to leave 7–8 am 83% arrive on time from ORD
Best single flight UA 4613 ORD 09:00 → STL 10:34 · 75% on time Avoid UA 4416 ORD 15:59 → STL 17:27 · 63% 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
16
17
18
19
20
21
22
ORD
86
76
81
75
82
85
73
79
71
62
70
63
66
62
75
% 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 4613flown by GoJet ORD 09:00 STL 10:34 75%
UA 4518flown by GoJet ORD 16:45 STL 18:13 67%
UA 4416flown by GoJet ORD 15:59 STL 17:27 63%

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 5958flown by SkyWest ORD 07:05 STL 08:39 1h 34m 62 82% 0.0% 60 min
UA 4613flown by GoJet ORD 09:00 STL 10:34 1h 34m 360 75% 1.7% 89 min
UA 1355 ORD 10:40 STL 12:11 1h 31m 72 91% 2.8% 63 min
UA 4581flown by GoJet ORD 12:55 STL 14:23 1h 28m 72 80% 4.2% 60 min
UA 2000 ORD 14:20 STL 15:46 1h 26m 72 68% 0.0% 116 min
UA 4416flown by GoJet ORD 15:59 STL 17:27 1h 28m 332 63% 3.9% 102 min
UA 4552flown by GoJet ORD 16:00 STL 17:28 1h 28m 35 68% 2.9% 163 min
UA 4518flown by GoJet ORD 16:45 STL 18:13 1h 28m 228 67% 3.5% 98 min
UA 4412flown by GoJet ORD 17:55 STL 19:23 1h 28m 37 56% 2.7% 80 min
UA 2144 ORD 19:55 STL 21:26 1h 31m 70 61% 0.0% 96 min
UA 4472flown by GoJet ORD 22:00 STL 23:29 1h 29m 20 67% 10.0% 47 min
UA 4576flown by GoJet ORD 22:00 STL 23:29 1h 29m 108 70% 6.5% 190 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 ORD STL 1h 28m 70% 2.9% 3,080 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