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Showing United only (incl. its regional partners)All airlines ×
2,595 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 7–8 am 95% arrive on time from IAH
Best single flight UA 1264 IAH 07:20 → LAS 08:35 · 95% on time Avoid UA 1971 IAH 14:20 → LAS 15:37 · 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).

7
8
9
10
11
12
13
14
15
16
17
18
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21
IAH
94
92
72
92
85
91
83
80
84
64
77
79
70
68
% 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.

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 1264 IAH 07:20 LAS 08:35 95%
UA 1524 IAH 11:55 LAS 13:13 88%
UA 1799 IAH 10:55 LAS 12:14 88%
UA 1971 IAH 14:20 LAS 15:37 85%

All 8 United flights in the current schedule

Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.
UA 1264 IAH 07:20 LAS 08:35 3h 15m 314 95% 0.0% 55 min
UA 1799 IAH 10:55 LAS 12:14 3h 19m 365 88% 0.5% 49 min
UA 1524 IAH 11:55 LAS 13:13 3h 18m 220 88% 0.0% 71 min
UA 1971 IAH 14:20 LAS 15:37 3h 17m 364 85% 0.0% 68 min
UA 1448 IAH 17:05 LAS 18:23 3h 18m 35 62% 2.9% 56 min
UA 2658 IAH 17:33 LAS 18:51 3h 18m 36 78% 0.0% 66 min
UA 2406 IAH 18:39 LAS 19:57 3h 18m 141 79% 0.0% 78 min
UA 1360 IAH 20:05 LAS 21:23 3h 18m 71 66% 0.0% 84 min

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 IAH LAS 3h 29m 85% 0.3% 2,595 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