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Not ready to book? to track prices.Find the cheapest flights from San Francisco to Seattle
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Hawaiian Airlines flights from San Francisco to Seattle
Our best Hawaiian Airlines deals on San Francisco to Seattle flight tickets
Alaska Airlines flights from San Francisco to Seattle
Our best Alaska Airlines deals on San Francisco to Seattle flight tickets
See travel insights to Seattle from
How to get the cheapest flight ticket from San Francisco to Seattle
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Seattle?
If you aren’t able to travel to Seattle during the month of October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of C$ 273.
What is the cheapest day to depart on your flight to Seattle?
Our data shows that Tuesday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as C$ 200. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around C$ 452. These prices are subject to change though, so be sure to set up a Price Alert for flights to Seattle.
What is the cheapest time of day to depart on your flight to Seattle?
Our most recent data shows that the best time of day to fly to Seattle is at noon. Flights from San Francisco to Seattle during this time can be as low as C$ 182. Flights in the evening are often more expensive with an average ticket price of C$ 452.
What is the cheapest San Francisco to Seattle/Tacoma Intl flight route?
Fly from San Francisco to Seattle/Tacoma Intl for the best San Francisco - Seattle/Tacoma Intl flight prices
How far in advance should I book a flight to Seattle?
You are more likely to see cheaper flights to Seattle from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around C$ 328 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from San Francisco for as low as C$ 204 on momondo.
What cabin class options are available on San Francisco to Seattle/Tacoma Intl flights?
There are 4 cabin classes available to choose from on San Francisco to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on San Francisco to Seattle flights?
You could potentially save up to 16% on your flight if you consider stops on a San Francisco to Seattle flight.
How have San Francisco to Seattle flight prices changed over time?
As of July 2025, prices for San Francisco to Seattle flights are approximately 3% more expensive when compared to flights at the same time last year.
How many flights depart from San Francisco to Seattle on average per day?
As of July 2025, there are 59 flights per day flying from San Francisco to Seattle. The most common time of day flights depart is 4:00p.m., with 39% of flights taking off at noon.
How many flights depart from San Francisco to Seattle on average per week?
As of July 2025, 416 flights take off from San Francisco and land in Seattle each week. The most common flight departure day for this route is Thu, with 27% of weekly flights taking off on this day.
When to book flights from San Francisco to Seattle
Cheap San Francisco to Seattle (SFO to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Francisco to Seattle
How far is San Francisco to Seattle/Tacoma Intl by plane?
San Francisco and Seattle/Tacoma Intl are 1091.5 km apart from one another. In terms of flight time, this usually takes a little over 2h 04m.
When did momondo last update prices for flights from San Francisco Airport to Seattle/Tacoma Intl Airport?
Prices for flights from San Francisco Airport to Seattle/Tacoma Intl Airport are updated daily.
How many operators does momondo search for flights from San Francisco Airport to Seattle/Tacoma Intl Airport?
As of July 2025, there is 1 operator available to choose from for flights from San Francisco Airport to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from San Francisco Airport to Seattle/Tacoma Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from San Francisco to Seattle?
Based on momondo bookings for flights between San Francisco and Seattle, the leading plane model is Boeing 737-900 Passenger/BBJ3 (winglets), making up 15.59% of the total bookings. Other popular models include Boeing 737-800 Passenger/BBJ2 (winglets) with 15.21%, Boeing 737-900 with 9.46%, and Boeing 737 with 9.45%.
What is the most popular airline from San Francisco to Seattle?
Based on momondo bookings for flights between San Francisco and Seattle, the leading airline is Alaska Airlines, making up 100% of the total bookings.
Best airlines flying from San Francisco to Seattle
Compare and see reviews for airlines that fly from San Francisco to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom C$ 151 | Free Cancellation | Rating 8.0 10,000 reviews |
Alaska Airlines Flights From San Francisco to Seattle
The lowest priced Alaska Airlines flight from San Francisco to Seattle from the last 72 hours was C$ 111. Generally, Alaska Airlines has 18 flights on this route every week with an average price of C$ 221. Alaska Airlines is rated 8.0/10 by our users.
Travelling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from San Francisco to Seattle?
It is quick and easy to find San Francisco to Seattle flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seattle that suits you.
Can I find flights from San Francisco to Seattle with flexible booking policies on momondo?
All flight searches from San Francisco to Seattle on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from San Francisco to Seattle?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Francisco to Seattle.
I’m not ready to book a flight from San Francisco to Seattle right now. Can momondo alert me if prices change?
If you are not ready to book a flight from San Francisco to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.