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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).

5
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OKC
93
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92
87
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79
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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
Houston flights leaving OKC 9–10 am: 1Close ×
UA 6255flown by Mesa OKC 09:39 IAH 11:15 1h 36m 72 83% 0.0% 39 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.
United (incl. CommuteAir, SkyWest, Mesa) 2,604 86% 0.8% 74 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 5453flown by SkyWest OKC 05:04 IAH 06:40 90%
UA 5531flown by SkyWest OKC 13:43 IAH 15:25 85%
All 10 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.
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