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5,216 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 95% depart on time. After 4 pm it’s 83%.

Best time to leave 6–7 am 96% arrive on time from LAX
Best single flight UA 654 LAX 05:45 → IAH 11:12 · 96% on time Avoid F9 1756 LAX 10:06 → IAH 15:35 · 70% 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
6
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9
10
11
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LAX
96
96
96
94
88
90
89
91
77
74
76
88
81
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82
88
% 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 LAX 3–4 pm: 1Close ×
UA 2377 LAX 15:20 IAH 20:49 3h 29m 361 87% 0.6% 64 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 3,438 88% 0.2% 54 min
Delta 646 86% 1.1% 73 min
American (incl. SkyWest) 408 83% 0.5% 74 min
Spirit 392 76% 1.3% 76 min
Frontier 332 70% 1.5% 75 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 654 LAX 05:45 IAH 11:12 96%
UA 491 LAX 00:51 IAH 06:12 92%
UA 1416 LAX 08:10 IAH 13:40 91%
UA 1680 LAX 19:21 IAH 00:50 87%
UA 2377 LAX 15:20 IAH 20:49 87%
· · ·
UA 2403 LAX 17:45 IAH 23:14 82%
UA 1591 LAX 13:10 IAH 18:39 73%
F9 1756 LAX 10:06 IAH 15:35 70%
All 15 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 LAX IAH 3h 21m 88% 0.2% 3,438 Flying now
Delta LAX IAH 3h 25m 86% 1.1% 646 Flying now
American LAX IAH 3h 25m 83% 0.5% 408 Flying now
Frontier LAX IAH 3h 30m 70% 1.5% 332 Flying now
Spirit LAX IAH 3h 19m 76% 1.3% 392 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