SFO - SEA

78€ Find Cheap Flights from San Francisco to Seattle – Compare and Save

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 19.08.. 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
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
147 €
Typical prices: 166 €-313 €
Southwest
Sat 12.9.Sat 19.9.
SFO - SEA • 1 stop
Cheapest direct flights
147 €
Typical prices: 194 €-338 €
Delta
Sat 29.8.Mon 31.8.
SFO - SEA • Direct
Top airlines
Cheapest • from 147 € (return)
Best reviews • 7,9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
You can fly direct with Alaska Airlines, Delta, and United Airlines. Average duration is 2h 16m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 86% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 48% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 28% price drop
Most popular
Good to know
Good to know
+1
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Good to know
Good to know
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Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from San Francisco to Seattle

Sat, 12. Sep - Sat, 19. Sep
Southwest Logo
17:05 - 22:55
SFO
-
SEA
5h 50m
1 stop
Southwest Logo
5:30 - 13:35
SEA
-
SFO
8h 05m
1 stop
147 €Southwest
Wed, 14. Oct - Sat, 17. Oct
Alaska Airlines Logo
16:43 - 22:33
SFO
-
SEA
5h 50m
1 stop
Alaska Airlines Logo
6:39 - 8:49
SEA
-
SFO
2h 10mdirect
148 €Alaska Airlines
Tue, 11. Aug - Sat, 15. Aug
United Airlines Logo
13:55 - 16:14
SFO
-
SEA
2h 19mdirect
United Airlines Logo
7:00 - 9:17
SEA
-
SFO
2h 17mdirect
149 €United Airlines
Wed, 9. Sep - Wed, 16. Sep
Southwest Logo
10:40 - 20:15
SFO
-
SEA
9h 35m
2 stops
Southwest Logo
8:30 - 14:05
SEA
-
SFO
5h 35m
1 stop
151 €Southwest
Sat, 12. Sep - Mon, 14. Sep
United Airlines Logo
13:55 - 16:14
SFO
-
SEA
2h 19mdirect
United Airlines Logo
9:00 - 11:19
SEA
-
SFO
2h 19mdirect
154 €United Airlines
Sat, 29. Aug - Tue, 1. Sep
Southwest Logo
6:10 - 14:20
SFO
-
SEA
8h 10m
1 stop
Southwest Logo
11:40 - 19:15
SEA
-
SFO
7h 35m
2 stops
156 €Southwest
Sat, 15. Aug - Thu, 17. Dec
Southwest Logo
5:00 - 15:55
SFO
-
SEA
10h 55m
1 stop
Southwest Logo
6:45 - 11:30
SEA
-
SFO
4h 45m
1 stop
157 €Southwest
Wed, 2. Sep - Wed, 9. Sep
Alaska Airlines Logo
11:38 - 19:52
SFO
-
SEA
8h 14m
1 stop
Alaska Airlines Logo
20:44 - 22:59
SEA
-
SFO
2h 15mdirect
158 €Alaska Airlines
Sat, 29. Aug - Mon, 31. Aug
Southwest Logo
5:00 - 12:55
SFO
-
SEA
7h 55m
1 stop
Southwest Logo
5:30 - 13:30
SEA
-
SFO
8h 00m
2 stops
160 €Southwest
Sat, 15. Aug - Thu, 17. Dec
Southwest Logo
6:00 - 18:20
SFO
-
SEA
12h 20m
2 stops
Southwest Logo
6:45 - 11:30
SEA
-
SFO
4h 45m
1 stop
161 €Southwest
Booking Insights

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.

How much is a return flight from San Francisco to Seattle?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from San Francisco to Seattle departing in September.

Flight prices are below average for this route right now.

Flights to Seattle from San Francisco usually cost between 213 € and 359 € in September.
The lowest price found in the past 5 days was 147 € on Southwest (12. Sept–19. Sept).

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 Tuesday and avoid Mondays 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 Saturdays.

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 February, where tickets cost 185 € (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is 304 € and 299 € respectively.

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

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at 133 € on average.

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, which saves you about 48% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know - Cheap tickets from San Francisco to Seattle

Low season

January

Cheapest flight

78 €
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (18% 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 return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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.

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 5 days, the lowest price for a flight from San Francisco to Seattle was 78 € for a one-way ticket and 147 € for a return.

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

    Alaska Airlines, Delta, American Airlines, and JetBlue 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?

    SkyTeam, and oneworld are the airline alliances operating flights between San Francisco and Seattle, with SkyTeam 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.

  • Which is the best airline for flights from San Francisco to Seattle, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from San Francisco to Seattle are Alaska Airlines and Delta. With an average price for the route of 200 € and an overall rating of 7,9, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of 161 € and an overall rating of 7,8.

  • 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 return 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.

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 135 € or less one-way.
  • 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.

Prefer to fly direct from San Francisco to Seattle/Tacoma Intl?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Francisco to Seattle/Tacoma Intl.
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

Alaska Airlines,Delta,United Airlines

Alaska Airlines,Delta, +1 more

Tuesday

Alaska Airlines,Delta,United Airlines

Alaska Airlines,Delta, +1 more

Wednesday

Alaska Airlines,Delta,United Airlines

Alaska Airlines,Delta, +1 more

Thursday

Alaska Airlines,Delta,United Airlines

Alaska Airlines,Delta, +1 more

Friday

Alaska Airlines,Delta,United Airlines

Alaska Airlines,Delta, +1 more

Saturday

Alaska Airlines,Delta,United Airlines

Alaska Airlines,Delta, +1 more

Sunday

Alaska Airlines,Delta,United Airlines

Alaska Airlines,Delta, +1 more

See more direct flights

Direct returns

Seattle/Tacoma Intl to San Francisco

Monday

Alaska Airlines,Delta,United Airlines

Alaska Airlines,Delta, +1 more

Tuesday

Alaska Airlines,Delta,United Airlines

Alaska Airlines,Delta, +1 more

Wednesday

Alaska Airlines,Delta,United Airlines

Alaska Airlines,Delta, +1 more

Thursday

Alaska Airlines,Delta,United Airlines

Alaska Airlines,Delta, +1 more

Friday

Alaska Airlines,Delta,United Airlines

Alaska Airlines,Delta, +1 more

Saturday

Alaska Airlines,Delta,United Airlines

Alaska Airlines,Delta, +1 more

Sunday

Alaska Airlines,Delta,United Airlines

Alaska Airlines,Delta, +1 more

See more direct flights

Reviews of the top airlines 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.
7,9
Alaska AirlinesOverall score based on 12714 reviews
8,1Boarding
7,0Entertainment
7,8Comfort
8,5Crew
7,0Food
Airline reviews

Nice crew, healthy snacks and drinks available. Flight to Seattle was short and comfortable.

10,0 ExcellentAnonymous, Feb 2026
SFO - SEA
Read more Alaska Airlines reviews

Nice crew, healthy snacks and drinks available. Flight to Seattle was short and comfortable.

Paying for first class and then they want $8:00 for wifi.

fine. only problem,,,, for some,,,,was that many people started trying to exit from the back of the plane,, . lots of irate people. there should be a flight attendant mid plane..to be sure that doesn't happen. The crew up front had no idea what was happening. One big guy started it..then a bunch of others followed his lead. could have gotten ugly... One man stepped in and questioned those rule breakers.. nothing bad happened,,,but......

We were late so that was what was worst part

no entertainment which was ok with us. Great crew, great ascent, rockier landing, empty air lane so very comfortable. fun pilot

I feel that for the price that I paid, I should’ve received zone one boarding. Said I was zone two. And even though I paid for an upgraded seat, I was lucky to get a space for my carry-on baggage. So I think the value wasn’t there.

Everything went smoothly at the airport and on the flight. So, I had a positive experience with no issues.

Boarded the plain and had to wait 1 hour for crew Captain to arrive from another flight

The flight duration is 1.5 hours. Besides the point of 2h late…

They cancelled my return flight somehow without informing me, when I tried to check in I was told the return flight was cancelled on my reservation by the check-in desk during my flight to San Fransisco. They were able to get me on an earlier flight the day I was supposed to fly back when I called. Still, this was super annoying.

Not really a “Delta” problem but worth mentioning: Boarding was a difficult process. TSA seemed understaffed and Pre-Check took longer than regular TSA. The supervisor was frazzled and yelled at travelers. Once through TSA, we had to put our carry-ons through another x-ray machine. Then queue up to board with both boarding pass and ID. Then, when we got to the stairs on the tarmac, we had to show our boarding pass again. Maybe this is just normal for Kona since the terminal is outdoors (but still a “secured” area).

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Really liked the choice of the 4 free snack options. Crew great. Good vibe on plane.

There was no wifi even after my husband paid for wifi it wasn’t working. The plane looked and felt old.

Flight and seats were great. Food service was average at best. The real main problem we had is that we got cheeseburgers for the kids but the plates was extremely hot. Like ridiculously hot and the stewardess never said anything. Luckily or unluckily my wife touched the plate and was able to deal with it before the kids got burned.

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

Information on your arrival and departure airports