Cheap flights from San Francisco to Seattle from £59
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SEA
23 Jul — 30 Jul1
Return
1 adult
Economy
Cheapflights Tip: The best prices from San Francisco to Seattle/Tacoma Intl are usually found in October or January, booked 79 days in advance, depart on a Friday or Monday and return on a Tuesday
Cheap flight deals from San Francisco to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 July 2025.
Explore the most affordable flight options available from San Francisco to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 July 2025.
Mon 25/817:14SFO - SEA
1 stop4h 07mAlaska Airlines
Fri 5/921:40SEA - SFO
Nonstop2h 24mAlaska Airlines
Deal found 16/7£110
Mon 11/814:31SFO - SEA
1 stop5h 19mHawaiian Airlines
Tue 19/815:40SEA - SFO
1 stop5h 39mHawaiian Airlines
Deal found 18/7£110
Sat 16/806:50SFO - SEA
1 stop8h 55mSouthwest
Tue 26/809:55SEA - SFO
2 stops9h 55mSouthwest
Deal found 17/7£121
Fri 15/822:55SFO - SEA
Nonstop2h 04mUnited Airlines
Mon 18/805:10SEA - SFO
Nonstop2h 12mUnited Airlines
Deal found 17/7£134
Thu 28/805:55SFO - SEA
Nonstop2h 10mDelta
Sat 30/807:28SEA - SFO
Nonstop2h 23mDelta
Deal found 18/7£151
Best flights from San Francisco to Seattle
Discover carefully curated flight deals from San Francisco to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 July 2025.
Mon 25/817:14SFO - SEA
1 stop4h 07mAlaska Airlines
Fri 5/921:40SEA - SFO
Nonstop2h 24mAlaska Airlines
Deal found 16/7£110
Mon 11/814:31SFO - SEA
1 stop5h 19mHawaiian Airlines
Tue 19/815:40SEA - SFO
1 stop5h 39mHawaiian Airlines
Deal found 18/7£110
Sat 16/806:50SFO - SEA
1 stop8h 55mSouthwest
Sat 23/809:50SEA - SFO
2 stops8h 40mSouthwest
Deal found 17/7£121
Thu 14/822:55SFO - SEA
Nonstop2h 04mUnited Airlines
Mon 18/805:10SEA - SFO
Nonstop2h 12mUnited Airlines
Deal found 17/7£134
Thu 28/805:55SFO - SEA
Nonstop2h 10mDelta
Sun 31/807:28SEA - SFO
Nonstop2h 23mDelta
Deal found 17/7£151
Direct flights from San Francisco to Seattle
Explore direct flight options from San Francisco to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 July 2025.
Wed 6/807:00SFO - SEA
Nonstop2h 05mAlaska Airlines
Thu 14/821:40SEA - SFO
Nonstop2h 19mAlaska Airlines
Deal found 16/7£110
Fri 15/805:55SFO - SEA
Nonstop2h 10mDelta
Tue 19/817:45SEA - SFO
Nonstop2h 21mDelta
Deal found 18/7£125
Thu 7/806:30SFO - SEA
Nonstop2h 18mUnited Airlines
Tue 12/805:10SEA - SFO
Nonstop2h 12mUnited Airlines
Deal found 17/7£131
Wed 6/820:49SFO - SEA
Nonstop2h 13mHawaiian Airlines
Fri 8/816:42SEA - SFO
Nonstop2h 11mHawaiian Airlines
Deal found 16/7£154
Last-minute flights from San Francisco to Seattle
Discover last-minute flight deals from San Francisco to Seattle. Data last updated 18 July 2025 and is based on user searches.
Wed 23/720:55SFO - SEA
Nonstop2h 20mDelta
Sat 23/807:28SEA - SFO
Nonstop2h 23mDelta
Deal found 17/7£181
Wed 23/719:45SFO - SEA
1 stop4h 45mSouthwest
Sat 23/805:00SEA - SFO
1 stop6h 20mSouthwest
Deal found 17/7£192
Fri 25/706:37SFO - SEA
1 stop12h 22mFrontier
Fri 22/815:25SEA - SFO
1 stop5h 56mFrontier
Deal found 18/7£257
Sun 27/709:15SFO - SEA
Nonstop2h 15mAlaska Airlines
Wed 13/808:10SEA - SFO
Nonstop2h 19mAlaska Airlines
Deal found 16/7£188
Sun 27/722:55SFO - SEA
Nonstop2h 04mUnited Airlines
Thu 7/805:10SEA - SFO
Nonstop2h 12mUnited Airlines
Deal found 16/7£233
Mon 28/706:00SFO - SEA
Nonstop2h 04mHawaiian Airlines
Fri 1/816:42SEA - SFO
Nonstop2h 11mHawaiian Airlines
Deal found 16/7£251
Mon 11/814:31SFO - SEA
1 stop5h 19mHawaiian Airlines
Tue 19/815:40SEA - SFO
1 stop5h 39mHawaiian Airlines
Deal found 18/7£110
Fri 15/805:55SFO - SEA
Nonstop2h 10mDelta
Fri 22/813:30SEA - SFO
Nonstop2h 25mDelta
Deal found 18/7£132
Fri 15/822:55SFO - SEA
Nonstop2h 04mUnited Airlines
Mon 18/805:10SEA - SFO
Nonstop2h 12mUnited Airlines
Deal found 17/7£134
Sat 16/806:50SFO - SEA
1 stop8h 55mSouthwest
Tue 26/809:55SEA - SFO
2 stops9h 55mSouthwest
Deal found 17/7£121
Mon 25/817:14SFO - SEA
1 stop4h 07mAlaska Airlines
Fri 5/921:40SEA - SFO
Nonstop2h 24mAlaska Airlines
Deal found 16/7£110
One-way flights from San Francisco to Seattle
Search for one-way flight options from San Francisco to Seattle. Find affordable one-way fares based on user searches. Data last updated 18 July 2025.
Sun 17/805:55SFO - SEA
Nonstop2h 10mDelta
Deal found 18/7£59
Thu 16/1007:00SFO - SEA
Nonstop2h 10mHawaiian Airlines
Deal found 16/7£60
Wed 5/1111:40SFO - SEA
Nonstop2h 19mAlaska Airlines
Deal found 17/7£61
Wed 13/807:00SFO - SEA
2 stops11h 10mSouthwest
Deal found 17/7£63
Sat 30/820:45SFO - SEA
Nonstop2h 14mUnited Airlines
Deal found 17/7£78
Thu 24/705:45SFO - SEA
1 stop8h 21mFrontier
Deal found 17/7£102
Cheapflights Fare Finder
Customise your flight search to find flights from San Francisco to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 July 2025.
Use the filters below to find and compare flights from San Francisco to Seattle that are best for you.
Fly from
San Francisco
Fly to
Seattle
Route
Depart
Return
Price
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Mon 25/8
17:14-21:21
1 stop4h 07m
Seattle/Tacoma Intl
Fri 5/9
21:40-00:04
Nonstop2h 24m
£110
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Mon 11/8
14:31-19:50
1 stop5h 19m
Seattle/Tacoma Intl
Tue 19/8
15:40-21:19
1 stop5h 39m
£110
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Sat 16/8
06:50-15:45
1 stop8h 55m
Seattle/Tacoma Intl
Tue 26/8
09:55-19:50
2 stops9h 55m
£121
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Fri 15/8
22:55-00:59
Nonstop2h 04m
Seattle/Tacoma Intl
Mon 18/8
05:10-07:22
Nonstop2h 12m
£134
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Thu 28/8
05:55-08:05
Nonstop2h 10m
Seattle/Tacoma Intl
Sat 30/8
07:28-09:51
Nonstop2h 23m
£151
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Sun 17/8
05:55-08:05
Nonstop2h 10m
£59
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Thu 16/10
07:00-09:10
Nonstop2h 10m
£60
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Wed 5/11
11:40-13:59
Nonstop2h 19m
£61
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Wed 13/8
07:00-18:10
2 stops11h 10m
£63
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Sat 30/8
20:45-22:59
Nonstop2h 14m
£78
Flights are sorted by cheapest return flights first.
Deals found on 18/7
Showing 1-10 of 11 results
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Best time to book a flight from San Francisco to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from San Francisco with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from San Francisco to Seattle
How far ahead should I book a flight from San Francisco to Seattle?
Use this chart to determine the optimal time to book a return flight from San Francisco to Seattle. Price data was last updated on 11 July 2025.
To ensure you get the cheapest price possible for a flight from San Francisco to Seattle, you should look to book at least 64 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from San Francisco to Seattle?
Currently, January is the cheapest month in which you can book a flight from San Francisco to Seattle (average of £622). Flying from San Francisco to Seattle in July is currently the most expensive (average of £946). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SFO to SEA?
Find hourly flight availability from San Francisco to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 July 2025.
A simple way to save on the total cost of your ticket is to fly from San Francisco to Seattle at midday. If you’re flexible enough to do this you can expect to save up to 38% on your trip compared to booking a flight in the afternoon.
Weekly flight availability from San Francisco to Seattle
Explore weekly flight availability from San Francisco to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 18 July 2025.
The most flights from SFO to SEA are scheduled on a Friday (116 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (57 on average).
How much does it cost for a return flight from San Francisco to Seattle?
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 18 July 2025.
Check out reviews from past customers who have flown with Alaska Airlines, Southwest, andDelta from San Francisco to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Mobility support was fabulous No flight entertainment that I was aware of.
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airports do I use to fly from San Francisco to Seattle?
If you book a flight from San Francisco to Seattle, you will be flying from San Francisco to Seattle/Tacoma Intl. Flights to Seattle/Tacoma Intl (SEA) from San Francisco (SFO) take 2h 04m for a nonstop flight. There are 89 flights from San Francisco to Seattle per day from 1 airline.
How popular is this San Francisco to Seattle flight route?
Flights from San Francisco to Seattle/Tacoma Intl have been viewed 21 times in the past calendar month.
What are the cheapest airlines flying from San Francisco to Seattle round-trip?
Currently priced at £110, Alaska Airlines will fly you from San Francisco to Seattle and back. In addition to Alaska Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Hawaiian Airlines and Southwest - these airlines can fly you to your destination from £110 and £121, respectively. Alaska Airlines is priced at 37% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from San Francisco to Seattle one-way?
The cheapet airlines for a one-way flight from San Francisco to Seattle are Delta (£59), Hawaiian Airlines (£60), and Alaska Airlines (£61).
What are the most reliable airlines from San Francisco to Seattle?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Francisco to Seattle on time: Copa Airlines (100%), Scandinavian Airlines (88%), KLM (85%).
What are the cheapest flights from San Francisco to Seattle?
Looking at all options, your cheapest flight can be booked for £58. While the most popular route (San Francisco - Seattle/Tacoma Intl) can be booked for £287 on average our data indicates £175 when flying from San Francisco to Seattle.
Can I find deals for business class flights from San Francisco to Seattle?
Yes. Cheapflights offers flight deals from San Francisco to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from San Francisco to Seattle?
Currently, January is the cheapest month in which you can book a flight from San Francisco to Seattle (average of £622). Flying from San Francisco to Seattle in July is currently the most expensive (average of £946). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 18 July 2025.
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 18 July 2025.
Discover the top airline that operate flights from San Francisco to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 July 2025.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from San Francisco to Seattle?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Seattle from San Francisco today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from San Francisco to Seattle?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from San Francisco to Seattle for you. Better yet — we are completely free to use.
Can Cheapflights find flights from San Francisco to Seattle with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from San Francisco to Seattle, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from San Francisco to Seattle become cheaper?
Of course! You can now track prices for flights from San Francisco to Seattle and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.
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