Showing Southwest only (incl. its regional partners)All airlines ×
4 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines
No nonstop, and no clear pattern: the best connection reaches San Francisco on time 57% of the time.
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.
No Southwest flight on this route ran 150+ times in the year.
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 | SEA | SFO | – | 100%few flights | 0.0% | 4 | Not flying now |
Alternatives with one stop
All connections →| SouthwestDetails → | SEA 17:20 → PHX 20:15WN 3354 | 2h 35m Phoenix | PHX 22:50 → SFO 00:55 +1WN 1098 | 7h 35m | 97% | 57% |
| SouthwestDetails → | SEA 11:45 → MDW 18:00WN 3081 | 3h 30m Chicago | MDW 21:30 → SFO 00:12 +1WN 2893 | 12h 27m | 98% | 48% |
| SouthwestDetails → | SEA 06:30 → PHX 09:15WN 3001 | 3h 30m Phoenix | PHX 12:45 → SFO 14:42WN 3334 | 8h 10m | 100% | 46% |
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