Cheap flights from San Francisco to Seattle
Cheapflights Tip: The best prices from San Francisco to Seattle/Tacoma Intl are usually found in October or January, booked 75 days in advance, depart on a Tuesday or Monday and return on a Monday
Cheap flight deals from San Francisco to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 July 2025.
Popular in | June |
|---|---|
Cheapest in | October |
Average price | S$ 360 |
Good round-trip deal | S$ 260 or less |
Good one-way deal | S$ 132 or less |
Best time to book a flight from San Francisco to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from San Francisco with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from San Francisco to Seattle
How far ahead should I book a flight from San Francisco to Seattle?
Use this chart to determine the optimal time to book a return flight from San Francisco to Seattle. Price data was last updated on 27 June 2025.
The best time to book flights from San Francisco to Seattle is 64 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest time of day to fly from SFO to SEA?
Find hourly flight availability from San Francisco to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 July 2025.
One of the essential ways to save on airfare from San Francisco to Seattle is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at midday could potentially save you up to 3% on airfare.
Weekly flight availability from San Francisco to Seattle
Explore weekly flight availability from San Francisco to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 11 July 2025.
The most flights from SFO to SEA are scheduled on a Friday (116 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (48 on average).
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Top airline flying from San Francisco to Seattle
Discover the top airline that operate flights from San Francisco to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 200,618 searches. Data last updated 11 July 2025.
Fly with Cheapflights
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How does Cheapflights help users find flights from San Francisco to Seattle?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Francisco to Seattle. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from San Francisco to Seattle?
Millions of users choose and trust Cheapflights to book the best flight deals from San Francisco to Seattle for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from San Francisco to Seattle with no change fees?
Yes, we can. To see specific flights from San Francisco to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from San Francisco to Seattle become cheaper?
Not ready to book yet? You can track prices for flights from San Francisco to Seattle on Cheapflights with our Price Alert feature and get notified when better prices are available.