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Sun, Oct 4 has passed, so this is the 12-month record.

3,432 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 4 in 5.

Best time to leave 6–7 am 95% arrive on time from LAS
Best single flight UA 2608 LAS 06:00 → IAH 11:11 · 95% on time Avoid F9 1490 LAS 07:00 → IAH 12:22 · 84% 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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LAS
89
79
84
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83
% 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.

United 2,594 86% 0.4% 77 min
Frontier 368 79% 2.2% 64 min
Spirit 470 79% 2.8% 103 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 2608 LAS 06:00 IAH 11:11 95%
UA 1711 LAS 10:25 IAH 15:40 91%
UA 1181 LAS 08:00 IAH 13:07 90%
UA 2492 LAS 12:14 IAH 17:25 84%
F9 1490 LAS 07:00 IAH 12:22 84%
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 LAS IAH 3h 05m 86% 0.4% 2,594 Flying now
Frontier LAS IAH 3h 30m 79% 2.2% 368 Flying now
Spirit LAS IAH 2h 59m 79% 2.8% 470 Not 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