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Showing United only (incl. its regional partners)All airlines ×
3,598 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 92% depart on time. After 4 pm it’s 7 in 10.

Best time to leave 5–6 am 98% arrive on time from IAH
Best single flight UA 487 IAH 05:22 → SFO 07:22 · 97% on time Avoid UA 1341 IAH 18:05 → SFO 20:10 · 62% 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
7
8
9
10
11
12
13
14
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18
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IAH
96
93
77
72
75
76
84
66
74
79
66
55
66
78
% 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 487 IAH 05:22 SFO 07:22 97%
UA 1768 IAH 07:20 SFO 09:25 89%
UA 1609 IAH 21:59 SFO 00:05 80%
UA 589 IAH 15:30 SFO 17:35 80%
UA 2611 IAH 12:58 SFO 15:03 78%
· · ·
UA 2358 IAH 09:35 SFO 11:35 74%
UA 382 IAH 16:25 SFO 18:30 73%
UA 1341 IAH 18:05 SFO 20:10 62%

All 12 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 487 IAH 05:22 SFO 07:22 4h 00m 309 97% 0.3% 104 min
UA 1768 IAH 07:20 SFO 09:25 4h 05m 350 89% 0.6% 41 min
UA 2744 IAH 08:20 SFO 10:25 4h 05m 93 68% 0.0% 58 min
UA 2358 IAH 09:35 SFO 11:35 4h 00m 365 74% 1.4% 65 min
UA 2611 IAH 12:58 SFO 15:03 4h 05m 242 78% 0.0% 80 min
UA 2756 IAH 12:58 SFO 15:03 4h 05m 37 68% 0.0% 68 min
UA 589 IAH 15:30 SFO 17:35 4h 05m 330 80% 0.0% 75 min
UA 382 IAH 16:25 SFO 18:30 4h 05m 170 73% 0.6% 73 min
UA 1341 IAH 18:05 SFO 20:10 4h 05m 200 62% 1.5% 55 min
UA 1976 IAH 19:35 SFO 21:44 4h 09m 25 33% 0.0% 61 min
UA 2751 IAH 19:35 SFO 21:44 4h 09m 35 31% 0.0% 63 min
UA 1609 IAH 21:59 SFO 00:05 4h 06m 253 80% 1.2% 48 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 SFO 4h 10m 79% 0.5% 3,598 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