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4,552 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am from Bush: 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 airport pair HOU → SJC 85% on time, fewest cancelled (0.0%), 364 flights
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
15
16
17
18
19
20
21
IAH
96
93
77
73
80
76
84
66
74
79
66
55
66
78
HOU
92
88
62
70
64
% 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
San Francisco Bay Area flights leaving IAH 6–7 pm: 1Close ×
UA 1341 IAH 18:05 SFO 20:10 4h 05m 200 62% 1.5% 55 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.
Southwest 739 81% 0.1% 47 min
United 3,813 79% 0.4% 65 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 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 16 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.
Southwest HOU SJC 4h 10m 85% 0.0% 364 Flying now
United IAH SJC 4h 03m 85% 0.0% 215 Flying now
United IAH SFO 4h 10m 79% 0.5% 3,598 Flying now
Southwest HOU OAK 4h 15m 77% 0.3% 375 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