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Showing United only (incl. its regional partners)All airlines ×
3,899 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 94% depart on time. After 4 pm it’s 3 in 4.

Best time to leave 5–6 am 97% arrive on time from IAH
Best single flight UA 1066 IAH 22:10 → DEN 23:57 · 90% on time Avoid UA 1654 IAH 18:19 → DEN 20:14 · 66% 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
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IAH
96
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91
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84
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87
76
73
72
66
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81
84
% 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 1066 IAH 22:10 DEN 23:57 90%
UA 1409 IAH 10:31 DEN 12:07 83%
UA 2339 IAH 20:22 DEN 22:15 76%
UA 1654 IAH 18:19 DEN 20:14 66%

All 16 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 1874 IAH 05:15 DEN 06:47 2h 32m 90 96% 0.0% 117 min
UA 2643 IAH 06:30 DEN 08:02 2h 32m 125 96% 0.8% 53 min
UA 1575 IAH 07:20 DEN 08:52 2h 32m 72 77% 1.4% 50 min
UA 2816 IAH 08:30 DEN 10:05 2h 35m 37 97% 0.0% 32 min
UA 2802 IAH 08:30 DEN 10:05 2h 35m 35 86% 0.0% 24 min
UA 1450 IAH 09:32 DEN 11:08 2h 36m 101 85% 0.0% 65 min
UA 1634 IAH 09:36 DEN 11:12 2h 36m 24 67% 0.0% 117 min
UA 1409 IAH 10:31 DEN 12:07 2h 36m 167 83% 0.6% 79 min
UA 2168 IAH 12:33 DEN 14:17 2h 44m 149 86% 0.0% 66 min
UA 1246 IAH 15:00 DEN 16:44 2h 44m 133 77% 0.8% 92 min
UA 2767 IAH 15:00 DEN 16:43 2h 43m 37 75% 0.0% 56 min
UA 484 IAH 16:21 DEN 18:23 3h 02m 37 80% 0.0% 109 min
UA 470 IAH 16:21 DEN 18:23 3h 02m 112 65% 0.0% 79 min
UA 1654 IAH 18:19 DEN 20:14 2h 55m 365 66% 0.5% 65 min
UA 2339 IAH 20:22 DEN 22:15 2h 53m 170 76% 0.0% 76 min
UA 1066 IAH 22:10 DEN 23:57 2h 47m 189 90% 0.5% 66 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 IAH DEN 2h 40m 83% 0.3% 3,899 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