SFO - SEA

84€ 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 08.08.. 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

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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Everything you should know

Cheapest return fare
157 €
Typical prices: 316 €-158 €
Alaska Airlines
Tue 1.9.Tue 1.9.
SFO - SEA • Direct
Cheapest direct flights
153 €
Typical prices: 341 €-207 €
Alaska Airlines
Tue 14.7.Wed 22.7.
SFO - SEA • Direct
Top airlines
Cheapest • from 157 € (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 19m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 88% 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 45% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 26% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
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

Tue, 1. Sep - Tue, 1. Sep
Alaska Airlines Logo
6:03 - 8:11
SFO
-
SEA
2h 08mdirect
Alaska Airlines Logo
11:24 - 16:19
SEA
-
SFO
4h 55m
1 stop
157 €Alaska Airlines
Thu, 6. Aug - Tue, 11. Aug
Delta Logo
10:40 - 12:51
SFO
-
SEA
2h 11mdirect
Delta Logo
7:20 - 9:36
SEA
-
SFO
2h 16mdirect
159 €Delta
Wed, 5. Aug - Wed, 12. Aug
Southwest Logo
16:40 - 23:25
SFO
-
SEA
6h 45m
1 stop
Southwest Logo
8:30 - 16:55
SEA
-
SFO
8h 25m
1 stop
161 €Southwest
Wed, 29. Jul - Thu, 6. Aug
Delta Logo
13:30 - 15:47
SFO
-
SEA
2h 17mdirect
Delta Logo
21:30 - 23:50
SEA
-
SFO
2h 20mdirect
164 €Delta
Tue, 4. Aug - Tue, 11. Aug
Southwest Logo
9:35 - 20:15
SFO
-
SEA
10h 40m
2 stops
Southwest Logo
8:30 - 16:55
SEA
-
SFO
8h 25m
1 stop
166 €Southwest
Tue, 8. Sep - Wed, 9. Sep
Alaska Airlines Logo
19:46 - 7:02
SFO
-
SEA
11h 16m
1 stop
Alaska Airlines Logo
10:47 - 13:03
SEA
-
SFO
2h 16mdirect
169 €Alaska Airlines
Thu, 10. Sep - Thu, 10. Sep
Alaska Airlines Logo
6:03 - 8:11
SFO
-
SEA
2h 08mdirect
Alaska Airlines Logo
10:47 - 13:03
SEA
-
SFO
2h 16mdirect
170 €Alaska Airlines
Wed, 15. Jul - Wed, 22. Jul
Southwest Logo
8:55 - 16:50
SFO
-
SEA
7h 55m
1 stop
Southwest Logo
6:15 - 15:00
SEA
-
SFO
8h 45m
1 stop
171 €Southwest
Tue, 7. Jul - Tue, 14. Jul
Southwest Logo
17:20 - 0:45
SFO
-
SEA
7h 25m
2 stops
Southwest Logo
6:15 - 15:00
SEA
-
SFO
8h 45m
1 stop
171 €Southwest
Tue, 1. Sep - Tue, 8. Sep
United Airlines Logo
18:25 - 20:43
SFO
-
SEA
2h 18mdirect
United Airlines Logo
7:11 - 9:30
SEA
-
SFO
2h 19mdirect
173 €United Airlines
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.

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 184 € (return) on average. On the other hand, the most expensive months are May and June, where the average cost of round-trip tickets is 281 € and 276 € 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 131 € 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 45% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know - Cheap tickets from San Francisco to Seattle

Low seasonJanuary
Cheapest flight84 €
Best time to beat the crowds (7% less expensive on average)
Most popular time to fly (11% 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 3 days, the lowest price for a flight from San Francisco to Seattle was 84 € for a one-way ticket and 157 € for a return.

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

    Alaska Airlines, Delta, 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 166 € 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 153 € and an overall rating of 7,9.

  • 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 68 € 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 3 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 12479 reviews
7,8Comfort
8,1Boarding
8,5Crew
7,0Entertainment
7,0Food
Airline reviews

No negatives. Crew was great, flight was on time and there were no crazy passengers. 🤩

10,0 ExcellentAnonymous, Jun 2026
FAT - SEA
Read more Alaska Airlines reviews

No negatives. Crew was great, flight was on time and there were no crazy passengers. 🤩

I had to cancel my trip due to medical reasons. I have been unable to cancel online through either Kayak or Alaska Airlines.. I am trying to get my insured trip reimbursed by XCover. They are requiring a notice of cancellation or not using to get my refund. Please help me get that information. I have been unable to get this information from either Kayak or Alaska Airlines.

Affirmed my disability by allowing me to board when most accessible. Very parable, helpful and friendly staff. Smooth flight overall! I always fly Alaska when possible! Thank you!

They were really helpful with every question and my kids had never been on a plane and the staff made them feel comfortable

This was my first time flying first class. I was really disappointed with the food option and lack of entertainment. I wasn’t given an option of what to eat. The breakfast was less than desirable. It was a bowl of some type of granola cereal, dried fruit, almond butter and 3 biscuits that we pretty much tasteless. There was so much fiber in that meal I was afraid I would poop myself in the flight. There was absolutely ZERO entertainment available. No tv screen to watch a movie or listen to music. No charging port for my phone. I recently flew Delta Airlines Comfort class and I had a tv screen with numerous options of music to listen to and movies to watch. Also I had a charging port for my phone. I expected more quality from first class. Please understand I am not some prima donna that feels entitled. But the price I paid for first class wasn’t worth what I experienced.

No complimentary snacks or food. Had to buy drinks and food.

Everything was excellent. It always is with Alaska Airlines. Thank you. 😊

It was ok! Not fond of sitting in middle seat. Tried to upgrade with my Atmos card but it was a new account and they weren’t able to look up my account details.

Wi-Fi cut out for a bit, then resumed. Otherwise flawless flight.

Ended up sitting in front of a child who kicked the back of the seat and screamed for most of the flight.

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

Much better than I expected. I had an economy ticket so I was really happy the flight was so comfy and the service so generous. Passengers were all polite too.

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.

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

My flight was cencaled due with the bad weather on Sunday the crew was poorly mistaken my luggage supposed depart with my flight instead I didn’t have my luggage for almost 3 days the website is poorly respond to my complain until I have someone to do it my connection smooth their not even respon or email me even the have my luggage

8 hours late and the plane smelled like urine, that smell in the morning when your child wet the bed in the night.

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

No charging outlets worked. Other than collecting trash attendants didn’t come around. No one could hear flight attendants announcements during the flight. Seat pads were horrible. Sitting on a board for 5 hours. What happened to Hawaiian airlines comfort, hospitality, and extras? Our pilots did an excellent job trying to minimize turbulence and incredible job in landing in windy conditions.

Yall need to integrate your system with Alaska more efficiently. They booted me off the first flight because of a discrepancy on your end.

Unfortunately, I was put into the middle seat in the first row of premium seating. Sounds nice right? No! that is the worst seat in the plane. I wish I was in economy rather than be in that seat! There is no seat back pocket, no tray table, no charger. Nothing! so unless you're row mates are willing to let you share their basic amenities any flyer should have, you are stuck. It was the worst experience ever! And the flight attendant forgot to take my drink order. I felt like the forgotten flyer.

Delayed and cancelled flights were hard and very stressful, both ways!

The flight was CANCELED!!! Can’t get much more “poor” than that. I had to switch to American Airlines, add another layover and got home in Honolulu 4 hours later than I was supposed to be home. One bright spot was Josh with Alaska Airlines at SFO. He got me on a United Flight that got me home a few hours before I would have. Without him I would have gotten home almost 7 hours after my originally scheduled flight.

Canceled my flight within 24 hours, causing me arriving home midnight. Will never book Hawaiian airlines anymore

I received several emails about my 3:10 flight. When I showed up to the airport at 12:30 to check my bags I was told the flight was actually at 1 pm. They grudgingly rebooked me for a flight at 5:22 to Vegas to get a connecting to LAX. I did find the gate for my original 3:10 flight but they were booked. I proceeded to receive status updates and gate change information for the 3:10 flight, even though I was apparently never supposed to be on that flight

The food options were limited and very specific. Some type of entertainment option for a 4.5 hour flight would have been nice.

The entire crew had everything handled and truly worked together. More than once, I saw them hustle down the aisle and back just to serve customers.

The flight was great. But the problem is we actually booked a flight with Hawaiian Airlines. We even received a Hawaiian Airlines confirmation number. So this made it really difficult to check in the online. So I had to call Hawaiian Airlines to get our Alaskan Airlines confirmation code to check in. Also weren’t told we were flying on Alaskan, but once we got on the plane, everything went well!

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

Information on your arrival and departure airports