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Showing United only (incl. its regional partners)All airlines ×
2,604 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: United’s OKC → IAH flights land within a few points of 86% on time whatever the hour.

Best time to leave 11 am–12 pm 92% arrive on time from OKC
Best single flight UA 5453 OKC 05:04 → IAH 06:40 · 90% on time Avoid UA 5531 OKC 13:43 → IAH 15:25 · 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).

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OKC
93
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87
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90
% 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 5453flown by SkyWest OKC 05:04 IAH 06:40 90%
UA 5531flown by SkyWest OKC 13:43 IAH 15:25 85%

All 10 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 5453flown by SkyWest OKC 05:04 IAH 06:40 1h 36m 211 90% 1.9% 67 min
UA 1127 OKC 07:00 IAH 08:28 1h 28m 72 63% 1.4% 42 min
UA 6255flown by Mesa OKC 09:39 IAH 11:15 1h 36m 72 83% 0.0% 39 min
UA 4361flown by CommuteAir OKC 12:01 IAH 13:38 1h 37m 26 79% 3.8% 81 min
UA 6277flown by Mesa OKC 12:01 IAH 13:37 1h 36m 35 83% 0.0% 78 min
UA 5531flown by SkyWest OKC 13:43 IAH 15:25 1h 42m 329 85% 0.3% 85 min
UA 6264flown by Mesa OKC 14:33 IAH 16:09 1h 36m 33 88% 0.0% 86 min
UA 4838flown by CommuteAir OKC 14:33 IAH 16:10 1h 37m 27 74% 0.0% 66 min
UA 6253flown by Mesa OKC 17:05 IAH 18:53 1h 48m 58 84% 0.0% 80 min
UA 3996flown by Mesa OKC 19:05 IAH 20:48 1h 43m 107 93% 0.9% 64 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 OKC IAH 1h 38m 86% 0.8% 2,604 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