SFO - SEA

C$ 95 Find Cheap Flights from San Francisco to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Seattle departing on 17/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Seattle, as well as popular online travel agencies
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Cheap Flight Deals from San Francisco to Seattle (SFO-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from San Francisco to Seattle

KAYAK's recommended round-trip deals from the most popular airlines that fly from San Francisco to Seattle.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Alaska Airlines Logo
9:10 a.m. - 11:20 a.m.SFO-SEA
2h 10mdirect
Alaska Airlines Logo
1:40 p.m. - 3:53 p.m.SEA-SFO
2h 13mdirect
C$ 181Alaska Airlines
Find Deal
Tue, 13 May - Tue, 13 May
Delta Logo
8:55 p.m. - 11:18 p.m.SFO-SEA
2h 23mdirect
Delta Logo
9:50 p.m. - 12:04 a.m.SEA-SFO
2h 14mdirect
C$ 189Delta
Find Deal
Tue, 20 May - Sat, 24 May
Alaska Airlines Logo
11:30 a.m. - 1:44 p.m.SFO-SEA
2h 14mdirect
Alaska Airlines Logo
4:16 p.m. - 11:53 p.m.SEA-SFO
7h 37m1 stop
C$ 195Alaska Airlines
Find Deal
Tue, 3 Jun - Tue, 3 Jun
Delta Logo
4:35 p.m. - 6:50 p.m.SFO-SEA
2h 15mdirect
Delta Logo
6:15 a.m. - 8:28 a.m.SEA-SFO
2h 13mdirect
C$ 206Delta
Find Deal
Sat, 17 May - Mon, 19 May
Southwest Logo
7:45 p.m. - 12:30 a.m.SFO-SEA
4h 45m1 stop
Southwest Logo
6:15 p.m. - 11:25 p.m.SEA-SFO
5h 10m1 stop
C$ 246Southwest
Find Deal
Tue, 15 Jul - Thu, 17 Jul
Southwest Logo
12:45 p.m. - 10:30 p.m.SFO-SEA
9h 45m2 stops
Southwest Logo
6:30 p.m. - 7:50 a.m.SEA-SFO
13h 20m2 stops
C$ 253Southwest
Find Deal
Wed, 4 Jun - Thu, 5 Jun
United Airlines Logo
6:30 a.m. - 8:48 a.m.SFO-SEA
2h 18mdirect
United Airlines Logo
5:10 a.m. - 7:22 a.m.SEA-SFO
2h 12mdirect
C$ 322United Airlines
Find Deal
Wed, 2 Jul - Mon, 7 Jul
Hawaiian Airlines Logo
6:00 a.m. - 8:04 a.m.SFO-SEA
2h 04mdirect
Hawaiian Airlines Logo
9:40 p.m. - 11:58 p.m.SEA-SFO
2h 18mdirect
C$ 341Hawaiian Airlines
Find Deal
Sun, 29 Jun - Mon, 7 Jul
United Airlines Logo
6:30 a.m. - 8:48 a.m.SFO-SEA
2h 18mdirect
United Airlines Logo
5:10 a.m. - 7:22 a.m.SEA-SFO
2h 12mdirect
C$ 400United Airlines
Find Deal
Sun, 29 Jun - Sun, 6 Jul
Hawaiian Airlines Logo
6:49 p.m. - 9:00 p.m.SFO-SEA
2h 11mdirect
Hawaiian Airlines Logo
8:08 a.m. - 10:22 a.m.SEA-SFO
2h 14mdirect
C$ 417Hawaiian Airlines
Find Deal
Fri, 23 May - Mon, 26 May

Expert advice for your flight from San Francisco to Seattle

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are specific to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Delta

Delta's Comfort Plus seats offer up to 8 cm extra legroom for added comfort.


Delta offers free Wi-Fi for SkyMiles members on domestic flights.

Read more about Deltaby Stefanie Waldek
Alaska Airlines

Alaska Airlines offers a 20-minute baggage guarantee for quick baggage claim.


Enjoy complimentary wine, beer, and cocktails in Premium Class on flights over 350 miles.

Airports
SFO

For a smooth departure, use curbside check-in at SFO with airlines like United and Delta. It's a convenient option, especially for families.

Read more about SFOby Blane Bachelor
SEA

Use the Link light rail for an affordable 40-minute trip from SEA to downtown Seattle. It's cheaper than ride-hailing services.

Read more about SEAby Harriet Baskas
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Delta

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Harriet Baskas

Harriet Baskas

Expert on Alaska Airlines and SEA

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Blane Bachelor

Blane Bachelor

Expert on SFO

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more

KAYAK's insights & trends for San Francisco to Seattle flights

Get data-powered insights and trends into flights from San Francisco to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from San Francisco to Seattle?

The average price of all round-trip flights from San Francisco to Seattle clicked on KAYAK for each day over the last 12 months.
When flying from San Francisco to Seattle, you should consider leaving on a Sunday and avoid Wednesdays if you are looking for the best rates. For your return to San Francisco, you’ll find the best rates on Fridays and the most expensive ones on Wednesdays.

What is the cheapest month to fly from San Francisco to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from San Francisco to Seattle is October, where tickets cost C$ 272 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is C$ 404 and C$ 400 respectively.

Can I save money by flying with a layover from San Francisco to Seattle?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.
No, with an average price for the route of C$ 634, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from San Francisco to Seattle?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from San Francisco to Seattle, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low season

January

High season

July

Cheapest flight

C$ 95
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly (20% more expensive on average)
Flight from San Francisco to Seattle

When to book flights from San Francisco to Seattle

Are your dates flexible? Find out the best times to travel from San Francisco to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from San Francisco to Seattle: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from San Francisco to Seattle 
MiraFlew with Alaska AirlinesSFO-SEAAug 2024
we stayed at crowne Plaza at SeaTac. super convenient to Link.
Verified travelerFlew with Alaska AirlinesSFO-SEAJul 2024
It is a very crowded flight, so I advice to choose seats in advance. We didn’t have that option and that was the only complaint I’d have because they put us in the middle seats and we both wanted aisle seats. My sister was able to switch but I wasn’t. She was switched to the back, almost to the last row.

FAQs for booking flights from San Francisco to Seattle

  • Is bag storage available at Seattle Tacoma International Airport?

    Smarte Carte offers not only rentals of carts, strollers, and wheelchairs but also provides baggage storage as well with their Baggage Storage Seattle service. They provide both short and long-term baggage storage in their secure facility. The facility is conveniently located on the arrivals level at baggage claim 9.

  • Is there a private area at Seattle Tacoma International Airport that nursing mothers can use?

    Inside the children's playroom, there is a Mother's Room which is private and quiet and also offers rocking chairs for you and your baby. This room comes with adjustable lighting as well as footstools, side tables, and electrical outlets. The airport offers a total of eight of these rooms throughout the various terminal buildings.

  • Does Seattle Tacoma International Airport have a cell phone lot?

    There is a complimentary cell phone lot featuring a large sign with a QR code. Drivers can simply scan the code on their smartphone to receive detailed arrivals information. The lot is located adjacent to the South 170th Street exit on the Airport Expressway. Drivers may park for free for up to twenty minutes.

  • If I have brought along my pet on my flight from San Francisco to Seattle in an animal carrier, where can I pick it up after my flight?

    All animals that traveled in the baggage compartment in animal carriers can be picked up in the baggage claim area. If your pet was sent via the airline’s cargo service, you must contact your individual airline to find out where their individual cargo service office is located at the airport to pick up your pet.

  • What is the cheapest flight from San Francisco to Seattle?

    In the last 3 days, the lowest price for a flight from San Francisco to Seattle was C$ 69 for a one-way ticket and C$ 131 for a round-trip.

  • Which airlines offer Wi-Fi service onboard planes from San Francisco to Seattle?

    Alaska Airlines, Hawaiian Airlines, and Asiana Airlines offer inflight Wi-Fi service on the San Francisco to Seattle flight route.

  • Which aircraft models fly most regularly from San Francisco to Seattle?

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the San Francisco to Seattle flight route.

  • Which airline alliances offer flights from San Francisco to Seattle?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between San Francisco and Seattle, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from San Francisco to Seattle?

    There are direct flights from San Francisco to Seattle on a daily basis.

  • How does KAYAK find such low prices on flights from San Francisco to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to San Francisco with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from San Francisco to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 189 or less one-way and C$ 477 or less round-trip.
  • What trip to the San Francisco area is complete without a bit of wine tasting? If you missed out this trip, or you did not get your fill, then SF Uncork'd is just what the doctor ordered. Located in Terminal 3 near Gate 85 in San Francisco International Airport, this bar offers a large selection of all varieties of wines by the glass, including a unique selection of wine flights.
  • One unique business you usually do not find at an airport comes the San Francisco Museum of Modern Art Store, located in the International Terminal of San Francisco International Airport. Not only is this a great place to just browse and wonder, it also features great gifts and even offers excellent coffee.
  • Who does not love a brand new gadget or the latest piece of technology? If this sounds like you, then InMotion Entertainment is just your type of place. Located in the International Terminal of San Francisco International Airport, this store features headphones, cameras, and travel solutions like backpacks and travel pillows.
  • When looking for a Seattle hotel that is both convenient and affordable, there may be no better choice than the Hilton Seattle Airport & Conference Center. This hotel features a 24-hour complimentary airport shuttle service, is close to the rail station that can quickly bring you to downtown Seattle, has two separate business centers with free WiFi and remote printing, and houses a fitness center with whirlpool.
  • What says Seattle better than a booming and lively music scene? This is just as true at Seattle Tacoma International Airport, where you will find the Sub Pop Store. Imagine having a complete record store tucked away in an airport -- that is what you will find at Sub Pop. Located in the Central Terminal of Seattle Tacoma International Airport, this store may enchant you so much you may forget to ever leave the airport.
See more tips

Prefer to fly direct from San Francisco to Seattle?

Find which airlines fly direct from San Francisco Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Direct departures

San Francisco to Seattle/Tacoma Intl

Monday

ANA,Aeromexico,Air France, +28 more

ANA,Aeromexico, +29 more

Tuesday

ANA,Aeromexico,Air France, +29 more

ANA,Aeromexico, +30 more

Wednesday

ANA,Aeromexico,Air China, +28 more

ANA,Aeromexico, +29 more

Thursday

ANA,Aeromexico,Air France, +31 more

ANA,Aeromexico, +32 more

Friday

ANA,Aeromexico,Air France, +27 more

ANA,Aeromexico, +28 more

Saturday

ANA,Aeromexico,Air China, +30 more

ANA,Aeromexico, +31 more

Sunday

ANA,Aeromexico,Air France, +29 more

ANA,Aeromexico, +30 more

See more nonstop flights

Direct returns

Seattle/Tacoma Intl to San Francisco

Monday

ANA,Aeromexico,Air France, +30 more

ANA,Aeromexico, +31 more

Tuesday

ANA,Aeromexico,Air France, +30 more

ANA,Aeromexico, +31 more

Wednesday

ANA,Aeromexico,Air China, +29 more

ANA,Aeromexico, +30 more

Thursday

ANA,Aeromexico,Air France, +32 more

ANA,Aeromexico, +33 more

Friday

ANA,Aeromexico,Air France, +27 more

ANA,Aeromexico, +28 more

Saturday

ANA,Aeromexico,Air China, +32 more

ANA,Aeromexico, +33 more

Sunday

ANA,Aeromexico,Air France, +30 more

ANA,Aeromexico, +31 more

See more nonstop flights
See more nonstop flights

Top airline flying from San Francisco to Seattle

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9911 reviews
8.2Boarding
8.5Crew
7.1Entertainment
7.9Comfort
7.1Food
Airline reviews

First time flying with any airline that has decent seating. Great experience crew was friendly and the pilot was as well.

10.0 ExcellentAnonymous, Apr 2025ONT - SEA
Read more Alaska Airlines reviews

First time flying with any airline that has decent seating. Great experience crew was friendly and the pilot was as well.

Even though we checked in, checked bags, and went through security, I was told at the gate that I hadn’t checked in. I was pulled aside and had to verify my identity yet again. Otherwise, the flight was fine.

Didn’t like anything. Alaska boarding process takes too long and is poorly managed. Flight crew unorganized and too lax not very professional. I fly very frequently (weekly) and this as the worst overall trip I have ever taken.

Very nice staff, plane was delayed-they gave some snacks about 30 min after delay due to mechanical issues (which I appreciate them checking the plane)

Due to an aircraft maintenance issue we switched planes but the catering/food didn't make iot on the new plane. On the way home the in-flight entertainment/wifi was not available. Throughout these difficulties the staff and crew were fantastic to deal with!

The flight was canceled so i booked another flight with Delta, so essentially there was absolutely nothing that i enjoyed about my experience with this flight

Nothing! I just didn't eat or use entertainment. I had three seats all to myself and it was wonderful!!!!

My flight was delayed. But it was during holidays so you kind of expect things like that to happen. I am not a frequently flyer so I am OK with that. But none the less, once the flight started, it seemed to me like it went fast. 😊

The app is very bugy, did not work well. Other than that it was ok.

The flight was delayed an hour and it was not disclosed to the passengers until it was time to board. There was no in-flight WiFI available and such poor communication overall. Unfortunate that I was going to miss my connecting flight with poor communication on alternatives.

Everything you need to know for your flight from San Francisco to Seattle

Information on your arrival and departure airports

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