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

The best bet has a stop: United via Denver (6h 20m) reaches Sacramento on time 9 times in 10, against 80% on the nonstop.

Best time to leave 9–10 am 86% arrive on time from IAH
Best single flight UA 1148 IAH 20:35 → SMF 22:43 · 79% 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).

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% 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 1148 IAH 20:35 SMF 22:43 79%

All 3 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 2749 IAH 10:00 SMF 12:07 4h 07m 35 69% 0.0% 44 min
UA 2773 IAH 10:00 SMF 12:07 4h 07m 37 95% 0.0% 74 min
UA 1148 IAH 20:35 SMF 22:43 4h 08m 225 79% 0.4% 49 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 SMF 4h 21m 80% 0.1% 676 Flying now

Alternatives with one stop

All connections →
UnitedDetails → IAH 05:15 → DEN 06:47UA 1874 1h 13m Denver DEN 08:00 → SMF 09:35UA 2149 6h 20m 97% 91%
UnitedDetails → IAH 05:22 → SFO 07:22UA 487 55m San Francisco SFO 08:17 → SMF 09:25UA 5220 · flown by SkyWest 6h 03m 96% 78%
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