Seattle to San Francisco flights (SEA → SFO)
Looking for Seattle to San Francisco flights? Cheapest round-trip I’ve found: US$181 on United, non-stop, departing 2026-12-23. That’s US$1 below the typical price for this route. Cheap flights from Seattle to San Francisco change daily — I re-check this route three times a day.
Deal score: Higher than usual — cheaper than 12% of prices I’ve seen on this route.
Best months to fly Seattle to San Francisco
| Month | Cheapest seen |
|---|---|
| December | US$97 |
| February | US$157 |
| October | US$157 |
How to book this fare
I don’t sell tickets — I track prices and point you to where to look. To book Seattle to San Francisco flights:
- Search Seattle to San Francisco on Google Flights for the dates shown above (Dec 2026) — the fare I found is usually still available there.
- Compare the same dates on metasearch sites like Skyscanner or KAYAK to confirm you’re seeing the lowest price.
- Book directly with the airline when you can — it’s often the same price and makes changes or cancellations much easier.
Fares change constantly. If the price has moved, check back — I re-check this route daily.
Other Seattle to … flights
- Seattle to Cusco flights — US$1,058
- Seattle to Queenstown flights — US$1,310
- Seattle to Christchurch flights — US$1,228
- Seattle to Rio de Janeiro flights — US$1,047
- Seattle to Perth flights — US$1,211
- Seattle to Belo Horizonte flights — US$1,513
- Seattle to Asuncion flights — US$1,574
- Seattle to Brasilia flights — US$1,487
All flights to San Francisco · All flights from Seattle
Prices last checked: 2026-09-25, 6:13:52 a.m.. Prices are indicative and change quickly — confirm on the airline site before booking. See how I find these deals.