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Cheap flights from San Francisco to Seattle from $116
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 25/1. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SEA
27 Nov — 4 Dec1
Cheapflights Tip: The best prices from San Francisco to Seattle/Tacoma Intl are usually found in January or February, booked 64 days in advance, depart on a Wednesday or Thursday and return on a Wednesday
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 28 October 2025.
Find flight deals from San Francisco to Seattle
Cheapest flights from San Francisco to SeattleExplore 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 28 October 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 28 October 2025.
Sun 7/1205:45SFO - SEA
Nonstop2h 21mDelta
Fri 19/1216:40SEA - SFO
Nonstop2h 16mDelta
Deal found 27/10$202
Thu 18/1205:45SFO - SEA
Nonstop2h 21mDelta
Wed 31/1207:13SEA - SFO
Nonstop2h 20mDelta
Deal found 26/10$209
Mon 17/1113:11SFO - SEA
1 stop3h 39mAlaska Airlines
Mon 17/1120:25SEA - SFO
Nonstop2h 16mAlaska Airlines
Deal found 26/10$215
Fri 12/1220:31SFO - SEA
Nonstop2h 18mAlaska Airlines
Sun 14/1212:45SEA - SFO
1 stop7h 00mAlaska Airlines
Deal found 27/10$217
Wed 19/1111:29SFO - SEA
1 stop4h 08mAlaska Airlines
Mon 24/1120:24SEA - SFO
Nonstop2h 17mAlaska Airlines
Deal found 27/10$224
Thu 4/1209:00SFO - SEA
Nonstop2h 24mAlaska Airlines
Sun 7/1217:30SEA - SFO
1 stop23h 09mAlaska Airlines
Deal found 27/10$234
Wed 19/1105:10SFO - SEA
1 stop6h 55mSouthwest
Mon 24/1107:25SEA - SFO
1 stop7h 40mSouthwest
Deal found 27/10$235
Thu 4/1212:45SFO - SEA
2 stops7h 00mSouthwest
Sun 7/1205:35SEA - SFO
1 stop8h 30mSouthwest
Deal found 27/10$238
Fri 19/1205:45SFO - SEA
Nonstop2h 21mDelta
Sat 20/1222:15SEA - SFO
Nonstop2h 17mDelta
Deal found 26/10$240
Wed 19/1112:45SFO - SEA
2 stops7h 55mSouthwest
Wed 3/1208:10SEA - SFO
2 stops6h 15mSouthwest
Deal found 27/10$246
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 647,157 searches. Data last updated 28 October 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
Tue 18/11
19:37-22:00
Nonstop2h 23m
Seattle/Tacoma Intl
Sun 23/11
20:10-22:25
Nonstop2h 15m
$209
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Wed 19/11
08:00-10:23
Nonstop2h 23m
Seattle/Tacoma Intl
Sun 23/11
12:48-19:57
1 stop7h 09m
$209
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Thu 18/12
05:45-08:06
Nonstop2h 21m
Seattle/Tacoma Intl
Thu 18/12
20:10-22:31
Nonstop2h 21m
$209
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Sun 7/12
08:00-14:39
1 stop6h 39m
Seattle/Tacoma Intl
Wed 10/12
19:21-21:34
Nonstop2h 13m
$209
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Fri 12/12
20:31-22:49
Nonstop2h 18m
Seattle/Tacoma Intl
Sun 14/12
08:25-12:29
1 stop4h 04m
$209
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Tue 3/3
09:00-14:43
1 stop5h 43m
Seattle/Tacoma Intl
Wed 4/3
07:00-09:11
Nonstop2h 11m
$209
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Tue 16/12
18:20-20:35
Nonstop2h 15m
Seattle/Tacoma Intl
Fri 19/12
07:09-09:33
Nonstop2h 24m
$209
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Sat 17/1
12:50-21:10
1 stop8h 20m
Seattle/Tacoma Intl
Sun 25/1
05:00-11:50
1 stop6h 50m
$231
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Sun 25/1
05:30-13:30
1 stop8h 00m
Seattle/Tacoma Intl
Wed 28/1
14:05-22:20
1 stop8h 15m
$231
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Wed 19/11
14:05-22:55
1 stop8h 50m
Seattle/Tacoma Intl
Wed 3/12
14:20-22:30
1 stop8h 10m
$231
Showing 1-10 of 23 results
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
Prices
Delays
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 24 October 2025.
To ensure you get the cheapest price possible for a flight from San Francisco to Seattle, you should look to book at least 58 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 $125). Flying from San Francisco to Seattle in May is currently the most expensive (average of $209). 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 28 October 2025.
It’s typically best to fly out from San Francisco to Seattle in the afternoon. Doing so could potentially save you 61% on the flight price compared to flying at midday, which is usually more expensive.
How often are flights from San Francisco to Seattle delayed?
About 15% of weekly flights between San Francisco and Seattle have experienced delays in the past year, with the average delay time being 130 minutes.
What is the most punctual flight time for San Francisco to Seattle flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on San Francisco to Seattle flights?
Over the past year, Aeromexico have had the lowest number of delays on this route, with just 2% of flights being delayed.
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 28 October 2025.
See what other customers who have flown with Alaska Airlines from San Francisco to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Overall
8.0
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Aug 2025
MFR - SEA
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Overall
8.0
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Aug 2025
MFR - SEA
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.
Travelling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsOcean Shores
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Alternative routes for San Francisco to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from San Francisco to Seattle
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 647,157 searches. Data last updated 28 October 2025.
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How does Cheapflights help users find flights from San Francisco to Seattle?
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Why should you use Cheapflights to find cheap flight tickets from San Francisco to Seattle?
Cheapflights helps you find that perfect flight to Seattle from San Francisco by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from San Francisco to Seattle with no change fees?
Certainly. Search results for flights to Seattle from San Francisco shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from San Francisco to Seattle become cheaper?
Not ready to book yet? You can track prices for flights from San Francisco to Seattle on Cheapflights with our Price Alert feature and get notified when better prices are available.