SEA - SFO

68€ Find Cheap Flights from Seattle to San Francisco – Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 23% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Booking Insights
Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Seattle to San Francisco

Tue, 13. Oct - Tue, 13. Oct
Alaska Airlines Logo
13:55 - 16:08SEA  Seattle/Tacoma Intl-SFO San Francisco
2h 13mdirect
Alaska Airlines Logo
19:11 - 21:25SFO  San Francisco-SEA Seattle/Tacoma Intl
2h 14mdirect
131 €Alaska Airlines
Sun, 10. Jan - Sun, 10. Jan
Delta Logo
7:20 - 9:51SEA  Seattle/Tacoma Intl-SFO San Francisco
2h 31mdirect
Delta Logo
18:30 - 20:50SFO  San Francisco-SEA Seattle/Tacoma Intl
2h 20mdirect
131 €Delta
Fri, 8. Jan - Fri, 8. Jan
Delta Logo
7:20 - 9:51SEA  Seattle/Tacoma Intl-SFO San Francisco
2h 31mdirect
Delta Logo
14:30 - 16:50SFO  San Francisco-SEA Seattle/Tacoma Intl
2h 20mdirect
131 €Delta
Sat, 3. Oct - Mon, 5. Oct
Alaska Airlines Logo
20:36 - 22:49SEA  Seattle/Tacoma Intl-SFO San Francisco
2h 13mdirect
Alaska Airlines Logo
16:43 - 22:33SFO  San Francisco-SEA Seattle/Tacoma Intl
5h 50m1 stop San Diego
132 €Alaska Airlines
Thu, 22. Oct - Mon, 26. Oct
Southwest Logo
7:40 - 14:55SEA  Seattle/Tacoma Intl-SFO San Francisco
7h 15m1 stop San Diego
Southwest Logo
6:10 - 14:35SFO  San Francisco-SEA Seattle/Tacoma Intl
8h 25m2 stops Los Angeles Oakland
134 €Southwest
Sat, 24. Oct - Tue, 27. Oct
Southwest Logo
7:35 - 14:35SEA  Seattle/Tacoma Intl-SFO San Francisco
7h 00m2 stops Oakland San Diego
Southwest Logo
15:50 - 23:55SFO  San Francisco-SEA Seattle/Tacoma Intl
8h 05m1 stop Phoenix Sky Harbor Intl
134 €Southwest
Tue, 6. Oct - Tue, 13. Oct
Southwest Logo
7:30 - 12:45SEA  Seattle/Tacoma Intl-SFO San Francisco
5h 15m1 stop San Diego
Southwest Logo
12:15 - 21:45SFO  San Francisco-SEA Seattle/Tacoma Intl
9h 30m2 stops Los Angeles Oakland
134 €Southwest
Mon, 19. Oct - Mon, 26. Oct
Southwest Logo
7:40 - 14:55SEA  Seattle/Tacoma Intl-SFO San Francisco
7h 15m1 stop San Diego
Southwest Logo
11:30 - 20:05SFO  San Francisco-SEA Seattle/Tacoma Intl
8h 35m2 stops Los Angeles Sacramento Intl
134 €Southwest
Thu, 12. Nov - Sat, 14. Nov
Southwest Logo
5:15 - 15:30SEA  Seattle/Tacoma Intl-SFO San Francisco
10h 15m1 stop Phoenix Sky Harbor Intl
Southwest Logo
11:20 - 19:10SFO  San Francisco-SEA Seattle/Tacoma Intl
7h 50m1 stop San Diego
134 €Southwest
Wed, 7. Oct - Wed, 14. Oct
Southwest Logo
7:30 - 15:10SEA  Seattle/Tacoma Intl-SFO San Francisco
7h 40m1 stop San Diego
Southwest Logo
12:15 - 21:45SFO  San Francisco-SEA Seattle/Tacoma Intl
9h 30m2 stops Los Angeles Oakland
134 €Southwest
Booking Insights

Price, demand, and travel trends for Seattle to San Francisco flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Seattle to San Francisco with more confidence.

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

Return flights from Seattle to San Francisco start at 131 €. Prices are below average for this route right now, with typical return fares ranging from 162 € to 315 €. The lowest price found in the past 5 days was 131 € on Alaska Airlines.

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

Saturday is the cheapest day of the week to fly from Seattle to San Francisco and is 9% cheaper than the average day. Monday is the most expensive day with flight prices 20% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • January is the cheapest month to fly from Seattle to San Francisco at 157 € return.
  • June (255 €) and July (246 €) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 61% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Seattle to San Francisco the cheapest?

Flights from Seattle to San Francisco are cheapest 8 weeks before departure. Booking in this window typically costs about 61% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Seattle to San Francisco flights

Low season

September

Cheapest flight

68 €
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly and prices are also 3% lower on average.
Flights from Seattle to San Francisco

When to book flights from Seattle to San Francisco

Are your dates flexible? Find out the best times to travel from Seattle to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Seattle to San Francisco flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • What facilities are available for business travelers at San Francisco International Airport?

    While there is no designated business center at San Francisco International Airport, there are plenty of workstations located throughout its terminals. There are also Power Bars in the Terminal 2 Food Court where travelers can plug in their laptops and continue their work while on the go.

  • Can I fly from Seattle to San Francisco non-stop?

    Due to their close proximity, many airlines offer nonstop flights from Seattle to San Francisco. Some of the airlines offering such flights include Delta Air Lines, United Airlines, and Alaska Airlines. There are also one-stop flights available through airlines like jetBlue Airways, Alaska Airlines, and American Airlines, with layovers in cities such as Long Beach, Los Angeles, and Portland.

  • What is the quickest way from San Francisco International Airport to downtown San Francisco?

    Aside from renting or driving a personal vehicle, BART (Bay Area Rapid Transport) is the quickest way to get from San Francisco International Airport to the city. Terminal 3 hosts the airport’s BART station and is easily accessed via AirTrain from the airport’s other terminals.

  • Should I fly to San Francisco International Airport, Oakland International Airport, or San José International Airport?

    Both San Francisco International Airport and Oakland International Airport are connected to BART, making them ideal for travelers who plan to take public transportation after their flights from Seattle to San Francisco. The main difference between the two is that San Francisco is on the west side of the bay while Oakland is on the east. San José International Airport, on the other hand, is not connected via BART, but there are other public transport options available. However, the main reason to fly into San José is if your final destination is outside of the Bay Area, as the airport is located a bit further outside the Bay Area’s urban sprawl.

  • Which airlines offer extra legroom and free seat selection on Seattle to San Francisco flights?

    Among airlines operating Seattle to San Francisco flights:

    • Alaska Airlines: offers extra legroom; offers free seat selection
    • United Airlines: offers extra legroom; offers free seat selection
    • Delta: offers extra legroom; offers free seat selection
    • American Airlines: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines are available on the route from Seattle to San Francisco?

    3 airlines operate flights between Seattle and San Francisco. The airlines offering direct flights on this route include:

    • Alaska Airlines
    • United Airlines
    • Delta

  • Which airports can I use when flying from Seattle to San Francisco?

    Flights from Seattle to San Francisco usually depart from Seattle/Tacoma Intl (SEA) and arrive at San Francisco (SFO).

  • Which airlines include bags at no extra cost on Seattle to San Francisco flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Alaska Airlines: a cabin bag and a checked bag in Economy class
    • United Airlines: a cabin bag and a checked bag in Economy class
    • Delta: a cabin bag and a checked bag in Economy class

    Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

  • Which cabin classes can I book on flights from Seattle to San Francisco?

    Two cabin classes are available on flights from Seattle to San Francisco:

    • Economy class
    • First Class

  • How much can I save by having a stopover when flying from Seattle to San Francisco?

    On this route, direct and stopover fares are close on average, with direct at 227 € return and stopover options via Denver Intl (DEN) at 229 €.

  • What is the standard checked bag allowance on flights from Seattle to San Francisco?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge 30 €–86 € for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Seattle to San Francisco?

    The Airbus A320-100/200 family is used most often on this route, operated mainly by United Airlines. Other aircraft seen on the route include Boeing 737-800 Passenger/BBJ2 (winglets) variants.

  • Which airports do connecting flights from Seattle to San Francisco pass through?

    One-stop flights from Seattle to San Francisco most commonly connect through:

    • Denver Intl (DEN) – 38% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) – 38% of one-stop connections
    • Salt Lake City (SLC) – 14% of one-stop connections
    • Ontario (ONT) – 10% of one-stop connections

    Denver Intl (DEN) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Seattle to San Francisco?

    On the Seattle to San Francisco route, being flexible with your departure day can save you up to 24%. Saturday is the cheapest day at 208 € return on average, while Monday is the most expensive at 274 € – a 65 € difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • At what point is a flight considered delayed on the route from Seattle to San Francisco?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Seattle to San Francisco route, 30% of flights were delayed in the past 3 months, with delays averaging 1 hour 36 minutes.

  • How are flight departures from Seattle to San Francisco spread across the day?

    Morning is the busiest departure period on Seattle to San Francisco flights, with 40% leaving in that window. Evening departures account for 30%, Afternoon flights for 25%, and Night flights for 5%.

  • What popular places can I visit in San Francisco?

    Some of the most popular sights in San Francisco are Fisherman's Wharf, Lombard Street, and Moscone Center. These are among the most viewed places in San Francisco on KAYAK.

  • What are the earliest and latest flights from Seattle to San Francisco?

    These are the earliest and latest flight times available from Seattle to San Francisco:

    • Earliest: departs at 6:39 and lands at 8:58
    • Latest: departs at 21:40 and lands at 23:59.

    The flight takes about 2h 19m.

  • How expensive are last-minute Seattle to San Francisco flights?

    Last-minute fares on this route (booked within 2 weeks of departure) run 75% above the route average of 227 €. Book 8 weeks before departure for the lowest fares.

  • How long is a flight from Seattle to San Francisco?

    A direct flight from Seattle to San Francisco takes 2h 19m, covering 1.757 km.

  • Do I need a passport to fly from Seattle to San Francisco?

    No. A passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Seattle to San Francisco changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about 129 € to 632 €. That means the highest observed fare was about 5x higher than the lowest one.

  • How are flight prices from Seattle to San Francisco looking right now?

    One-way fares from Seattle to San Francisco are currently lower than usual. Average one-way flight prices are about 68 €, which is 59% below the typical average for this route.

  • How does Southwest's on-time performance compare to other airlines on Seattle to San Francisco flights?

    Southwest is slightly above the route average for timely arrivals, while Delta has a lower on-time arrival rate. On-time arrival rates on Seattle to San Francisco flights are:

    • Southwest: 100% on time
    • Delta: 73% on time
    • United Airlines: 72% on time

    On average, flights on this route are punctual 70% of the time.

  • How do delay rates compare for morning and evening flights from Seattle to San Francisco?

    Night flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

  • How much time can I save by choosing a different stopover airport from Seattle to San Francisco?

    Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time of 5h 26m, compared to 11h 57m via Ontario (ONT) and 13h 35m via Las Vegas Harry Reid Intl (LAS).

  • Which car hire options are available at San Francisco Airport (SFO)?

    San Francisco Airport (SFO) hosts 5 major car hire companies, with daily rates starting from around 13 € for economy cars. Top options include:
    · Thrifty
    · Europcar
    · Dollar
    · Hertz
    · Fox

  • How much should I expect to pay for a Seattle to San Francisco flight?

    Return flights from Seattle to San Francisco range from 162 € to 315 €, with an average of 227 € over the past 12 months. Anything below 162 € counts as a good deal.

  • Which airlines offer Wi-Fi on Seattle to San Francisco flights?

    Three airlines offer in-flight Wi-Fi on Seattle to San Francisco flights:

    • • Alaska Airlines
    • • Delta
    • • JetBlue

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty programme, while others are paid add-ons priced by flight length.

Your guide to booking Seattle to San Francisco flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Saturday departure instead of Monday. On this route, Saturday flights average 208 € – about 65 € less than Monday (24% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 8 weeks before you fly. On this route, that window historically saves about 61% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to San Francisco trip for January. Fares historically average 157 € return in that month – typically 97 € less than the most expensive month, which is June (based on the last 12 months).
  • If arriving on time is high on your priority list, Southwest is the strongest pick on this route. 100% of Southwest flights from Seattle to San Francisco arrived on time in the past 3 months, slightly above the route's average on-time arrival rate of 70%. When flights on this route do arrive late, the average delay is 1 hour36 minutes, so choosing an airline with strong on-time performance can make a difference on tight schedules.
  • Looking to take public transport to Seattle-Tacoma International Airport so you can avoid the hassle of renting a car? Link Light Rail services connect Seattle-Tacoma International Airport directly to downtown Seattle and even to the University of Washington. The airport’s Link station is located outside the airport on the fourth floor of the adjacent parking garage.
  • Want to give the kids the chance to burn off a bit of excess energy before the flight? Stop by Seattle-Tacoma International Airport’s Playroom, located by the Seattle Tap Room in the Central Terminal by the A gates. At San Francisco International Airport there are three children’s play areas to choose from: two in Terminal 3 and one in Terminal 2.
  • Fortunately for travelers wanting to grab a bite to eat before they board their flight out of Seattle-Tacoma International Airport, there are plenty of restaurant options available - even for those with dietary restrictions. For vegetarians and vegans there is Floret, while for those who prefer meat on the menu, there is Rel’Lish Burger Lounge.
  • The Aviation Museum in San Francisco International Airport is a great family-friendly activity for those who are looking for a diversion during their time at the airport. The museum includes a library and is open from 10:30 a.m. to 4:30 p.m.
  • To reach San Francisco International Airport’s Rental Car Center, simply hop on the AirTrain Blue Line at any one of the airport’s terminals. The AirTrain runs 24 hours a day and also connects the terminals to all of the airport’s parking garages and the BART station.

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

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

Direct departures

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

Direct returns

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

More options for your flight from Seattle to San Francisco

Complete your trip to San Francisco with a hotel stay or car hire