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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).

5
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LAS
95
91
93
89
91
79
87
84
72
79
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84
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
Houston flights leaving LAS 4–5 pm: 1Close ×
UA 2449 LAS 16:43 IAH 21:57 3h 14m 104 78% 1.9% 63 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 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