Cheap Flights from San Francisco International (SFO) to Seattle (SEA)

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Flight deals from San Francisco International to Seattle

Looking for a cheap last-minute deal or the best round-trip flight from San Francisco International to Seattle? Find the lowest prices on one-way and round-trip tickets right here.

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Find the cheapest month to fly from San Francisco International to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Francisco International to Seattle flights are currently cheapest in October.

Direct flights from San Francisco International to Seattle

Alternative San Francisco International to Seattle routes

Looking for the cheapest, fastest or easiest route from San Francisco International to Seattle? You could fly into the following airports instead.

San Francisco to Seattle: Flight information

The things to know before you go.
Cheapest flight found$128
Cheapest month to flyAugust
Average flight time2 hrs, 15 mins
Most popular airlineWestJet
Average flights per week961

Finding cheap flights from San Francisco International to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Everett.
The best price we found for a round-trip flight from San Francisco International to Seattle is $128. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 15 minutes is the average flight time from San Francisco International to Seattle.
WestJet, Alaska Airlines and Delta fly direct from San Francisco International to Seattle.
There are 733 flights per week flying from San Francisco International to Seattle, as of April 2024.
The cheapest month to fly from San Francisco International to Seattle is usually August.
If you're flying from San Francisco International Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 12.1 miles away from the center of Seattle. We've found flights to this airport from $128.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Francisco International Airport to Seattle on Wednesday, August 28, 2024.
Yes – the average flight time is 2 hours and 15 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
In April, the average temperature is usually around 47°F. August is typically the warmest month in Seattle, when it usually averages around 73°F. You can expect the least rain in July. The coldest month is December, with temperatures averaging 33°F. The rainiest month is November.
Currently, Alaska Airlines offers the cheapest flight tickets to Seattle.

California’s only consolidated city-county is also the state’s northern hub for finance and commerce. San Francisco is its fourth-largest city after Los Angeles, San Jose, and San Diego, and was founded just a couple of months after the signing of the Declaration of Independence.

This makes it one of the United States’ oldest cities; San Fran saw a surge in population growth during the famous 1849 Gold Rush. It has been long associated with the birth and rise of the hippie counterculture, as well as many other liberal movements. A western tourist zone well regarded for its impressive architecture and cool bayside summer breezes, Fog City is located 679 miles South of Seattle.

The destination takes about two hours to arrive to by plane. Despite being farther down, San Francisco is actually a bit cooler year-round, since it lies right on the Pacific Coast. That being said, San Fran tourists will want to remember to bring an umbrella, as the northern city experiences high amounts of annual rainfall. For directflights from San Francisco to Seattle, Alaska Airlines, American Airlines, Continental, Delta, United, and US Airways are the primary carriers of choice.

Departing San Fran International

Nearly 13 miles from downtown lies San Francisco International, the second busiest airport in California after Los Angeles. It is United Airlines’ fifth largest hub and primary maintenance facility, as well as the chief flight base for Virgin America. The airport is famous for implementing a string of firsts, including a Fly Quiet Program and residential sound abatement-retrofitting program.

San Francisco International is outfitted with four terminal and seven concourses that were designed in a counterclockwise ring pattern for easy accessibility. Banking services, free WiFi, spas, and on-site showers are all available for passengers who need them!

A fun itinerary for your stay in Seattle!

Starbucks coffee houses line the streets of one of America’s greenest and most environmentally friendly cities. Many great musical artists originated in Seattle, including Jimi Hendrix, Pearl Jam, and Nirvana.

For a fun time, do not forget to make your way to Pike Place Market, which is arguably the country’s oldest farmers market! Hing Hay Park is where you can always find live musical performances and many karaoke bars, and the Woodland Park Zoo is a must for families traveling with children.

Do not let high-priced airfare get you down. With Skyscanner, cheap flights from San Francisco to Seattleare always on tap. Search, save, and be well on your way to Washington’s seaport favorite!


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Prices shown on this page are estimated lowest prices only. Found in the last 45 days.