Cheap flights from San Francisco to Seattle
Cheap return flights from San Francisco to Seattle
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
Seattle flight facts
What you need to know
What are the cheapest airlines?
- Alaska Airlines
- Southwest Airlines
- Delta Air Lines
These airlines usually offer the cheapest flights from San Francisco to Seattle.
What airlines fly indirectly?
- American Airlines
- United Airlines
- JetBlue Airways
These airlines fly from San Francisco to Seattle, but you’ll have at least one layover.
How long is the flight?
2 hours 15 minutes
This is the shortest flight time from San Francisco to Seattle.
Alternative flights from the UK to Seattle
Check out prices for other routes
Alternative flights from San Francisco
You might find cheaper flights nearby
Today alone, Netflights has searched over five flights. 05 / Feb / 2026 is currently the lowest priced day of the year to fly the San Francisco/Seattle route. There are around 35 flights on any given week from the UK to Seattle and the cheapest month to fly right now is February. Not suitable? Try running another search or viewing all cheap flight deals.
How to get cheap flights from San Francisco to Seattle
Tips and advice from our flight experts
You've searched for flights from San Francisco to Seattle. We've found 25 flights and compared them to give you the best offers. Alaska Airlines is, on average, the cheapest for this route. Look out for their deals! The cheapest offer we've found is a one-way ticket for £71 from San Francisco to Seattle on 11/07/2026 at 14:00.
We've scanned hundreds of airfares from dozens of airlines across the globe. We've found 10 airlines that operate the 1,290 km flight from San Francisco to Seattle.
To find the best offers, consider booking 2-3 months in advance or last minute for deals. Alaska Airlines is a popular choice for this route, with an average flight duration of 2 hours 15 minutes. After selecting an offer, fill out your information and proceed to payment. Consider booking a hotel with us or using our flight + hotel service to save time and money.
Other popular destinations near Seattle
Where other people are flying to
