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5,220 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 3 in 4.

Best time to leave 6–7 am 97% arrive on time from IAH
Best single flight DL 1216 IAH 07:10 → LAX 08:39 · 94% on time Avoid F9 1755 IAH 16:02 → LAX 17:30 · 75% 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).

6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
IAH
95
94
90
90
79
86
82
89
77
77
75
71
74
79
76
% 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
Los Angeles flights leaving IAH 12–1 pm: 1Close ×
UA 2460 IAH 12:33 LAX 14:06 3h 33m 365 87% 0.3% 73 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.
Delta 646 89% 1.1% 77 min
United 3,439 85% 0.3% 58 min
Spirit 394 82% 1.3% 72 min
American (incl. SkyWest) 409 81% 0.5% 80 min
Frontier 332 75% 0.9% 63 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.
DL 1216 IAH 07:10 LAX 08:39 94%
UA 2600 IAH 07:20 LAX 08:57 91%
UA 469 IAH 09:53 LAX 11:30 89%
UA 1945 IAH 14:54 LAX 16:27 89%
UA 2460 IAH 12:33 LAX 14:06 87%
· · ·
UA 2658 IAH 18:38 LAX 20:15 82%
UA 2095 IAH 20:15 LAX 21:54 76%
F9 1755 IAH 16:02 LAX 17:30 75%
All 18 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.
Delta IAH LAX 3h 41m 89% 1.1% 646 Flying now
United IAH LAX 3h 37m 85% 0.3% 3,439 Flying now
American IAH LAX 3h 46m 81% 0.5% 409 Flying now
Frontier IAH LAX 3h 36m 75% 0.9% 332 Flying now
Spirit IAH LAX 3h 41m 82% 1.3% 394 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