Cheap flights from San Francisco to Seattle from $89
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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SEA
10 Jan — 17 Jan1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
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 Tuesday or Wednesday and return on a Wednesday
Cheap flight deals from San Francisco to Seattle
Enter your travel dates to find the best prices.
Cheapest flights from San Francisco to Seattle
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 11 December 2025.
Tue 30/1221:41SFO - SEA
Nonstop2h 18mAlaska Airlines
Thu 8/119:45SEA - SFO
Nonstop2h 13mAlaska Airlines
Deal found 8/12$199
Tue 30/1221:41SFO - SEA
Nonstop2h 18mAlaska Airlines
Wed 7/108:25SEA - SFO
1 stop3h 58mAlaska Airlines
Deal found 8/12$236
Wed 31/1222:48SFO - SEA
Nonstop2h 11mUnited Airlines
Mon 5/113:35SEA - SFO
Nonstop2h 17mUnited Airlines
Deal found 10/12$251
Tue 30/1221:41SFO - SEA
Nonstop2h 18mAlaska Airlines
Wed 31/1219:23SEA - SFO
Nonstop2h 18mAlaska Airlines
Deal found 8/12$259
Tue 30/1205:45SFO - SEA
Nonstop2h 21mDelta
Tue 6/107:15SEA - SFO
Nonstop2h 20mDelta
Deal found 9/12$266
Wed 31/1216:42SFO - SEA
Nonstop2h 17mAlaska Airlines
Wed 7/113:36SEA - SFO
Nonstop2h 14mAlaska Airlines
Deal found 9/12$274
Wed 31/1205:45SFO - SEA
Nonstop2h 21mDelta
Tue 6/110:25SEA - SFO
1 stop7h 33mDelta
Deal found 10/12$281
Wed 31/1217:42SFO - SEA
Nonstop2h 15mAlaska Airlines
Mon 5/118:04SEA - SFO
1 stop3h 32mAlaska Airlines
Deal found 10/12$326
Wed 31/1222:48SFO - SEA
Nonstop2h 11mUnited Airlines
Fri 2/107:05SEA - SFO
Nonstop2h 24mUnited Airlines
Deal found 9/12$338
Fri 26/1221:41SFO - SEA
Nonstop2h 18mAlaska Airlines
Tue 6/120:36SEA - SFO
Nonstop2h 18mAlaska Airlines
Deal found 10/12$341
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 11 December 2025.
Thu 26/308:55SFO - SEA
1 stop5h 46mDelta
Sat 28/316:33SEA - SFO
Nonstop2h 16mDelta
Deal found 9/12$191
Fri 13/208:42SFO - SEA
Nonstop2h 21mAlaska Airlines
Sun 15/220:41SEA - SFO
Nonstop2h 15mAlaska Airlines
Deal found 9/12$199
Mon 12/115:00SFO - SEA
1 stop7h 35mSouthwest
Thu 15/105:00SEA - SFO
1 stop6h 50mSouthwest
Deal found 10/12$227
Fri 23/116:03SFO - SEA
1 stop7h 19mDelta
Fri 30/113:40SEA - SFO
Nonstop2h 18mDelta
Deal found 9/12$191
Thu 8/116:03SFO - SEA
1 stop6h 21mDelta
Mon 12/118:05SEA - SFO
1 stop4h 50mDelta
Deal found 9/12$206
Fri 30/105:05SFO - SEA
1 stop7h 00mSouthwest
Sun 1/214:15SEA - SFO
1 stop8h 35mSouthwest
Deal found 10/12$227
Thu 26/206:00SFO - SEA
1 stop6h 58mDelta
Sun 1/307:25SEA - SFO
1 stop5h 19mDelta
Deal found 9/12$206
Wed 14/114:35SFO - SEA
1 stop8h 30mSouthwest
Fri 16/105:15SEA - SFO
1 stop9h 35mSouthwest
Deal found 10/12$235
Thu 8/114:10SFO - SEA
2 stops7h 40mSouthwest
Mon 12/106:25SEA - SFO
2 stops7h 55mSouthwest
Deal found 9/12$242
Fri 13/316:46SFO - SEA
Nonstop2h 16mDelta
Sun 15/307:20SEA - SFO
Nonstop2h 26mDelta
Deal found 9/12$221
Thu 5/308:54SFO - SEA
1 stop5h 50mDelta
Sun 8/317:55SEA - SFO
1 stop5h 21mDelta
Deal found 10/12$236
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 11 December 2025.
Mon 5/116:42SFO - SEA
Nonstop2h 17mAlaska Airlines
Thu 15/113:36SEA - SFO
Nonstop2h 14mAlaska Airlines
Deal found 10/12$183
Thu 1/116:42SFO - SEA
Nonstop2h 17mAlaska Airlines
Thu 8/119:45SEA - SFO
Nonstop2h 13mAlaska Airlines
Deal found 8/12$199
Thu 15/106:00SFO - SEA
Nonstop2h 20mDelta
Mon 19/107:15SEA - SFO
Nonstop2h 20mDelta
Deal found 9/12$202
Fri 16/113:25SFO - SEA
Nonstop2h 19mUnited Airlines
Mon 19/106:03SEA - SFO
Nonstop2h 22mUnited Airlines
Deal found 10/12$203
Mon 5/106:00SFO - SEA
Nonstop2h 20mDelta
Mon 12/107:15SEA - SFO
Nonstop2h 20mDelta
Deal found 9/12$206
Sun 4/122:48SFO - SEA
Nonstop2h 11mUnited Airlines
Sun 11/109:25SEA - SFO
Nonstop2h 18mUnited Airlines
Deal found 10/12$221
Fri 2/106:00SFO - SEA
Nonstop2h 23mUnited Airlines
Wed 7/109:25SEA - SFO
Nonstop2h 18mUnited Airlines
Deal found 8/12$236
Thu 1/105:45SFO - SEA
Nonstop2h 21mDelta
Mon 5/121:20SEA - SFO
Nonstop2h 08mDelta
Deal found 9/12$244
Wed 31/1222:48SFO - SEA
Nonstop2h 11mUnited Airlines
Mon 5/113:35SEA - SFO
Nonstop2h 17mUnited Airlines
Deal found 10/12$251
Sat 7/316:15SFO - SEA
Nonstop2h 15mUnited Airlines
Wed 11/309:20SEA - SFO
Nonstop2h 19mUnited Airlines
Deal found 9/12$253
Thu 1/105:45SFO - SEA
Nonstop2h 21mDelta
Sun 4/122:15SEA - SFO
Nonstop2h 17mDelta
Deal found 9/12$259
Fri 16/106:00SFO - SEA
Nonstop2h 20mDelta
Mon 19/107:15SEA - SFO
Nonstop2h 20mDelta
Deal found 10/12$262
Last-minute flights from San Francisco to Seattle
Discover last-minute flight deals from San Francisco to Seattle. Data last updated 11 December 2025 and is based on user searches.
Tue 16/1208:00SFO - SEA
2 stops6h 55mAlaska Airlines
Tue 16/1217:59SEA - SFO
Nonstop2h 16mAlaska Airlines
Deal found 9/12$381
Tue 16/1214:21SFO - SEA
Nonstop2h 15mAlaska Airlines
Thu 18/1220:36SEA - SFO
Nonstop2h 18mAlaska Airlines
Deal found 10/12$483
Tue 16/1212:20SFO - SEA
1 stop7h 58mAmerican Airlines
Fri 19/1219:23SEA - SFO
Nonstop2h 18mAmerican Airlines
Deal found 10/12$498
Tue 16/1212:00SFO - SEA
1 stop6h 20mAmerican Airlines
Thu 18/1211:45SEA - SFO
1 stop7h 33mAmerican Airlines
Deal found 10/12$513
Wed 17/1208:00SFO - SEA
2 stops6h 55mAlaska Airlines
Wed 17/1217:59SEA - SFO
Nonstop2h 16mAlaska Airlines
Deal found 9/12$426
Wed 17/1207:35SFO - SEA
Nonstop2h 17mAlaska Airlines
Mon 5/116:43SEA - SFO
1 stop4h 53mAlaska Airlines
Deal found 9/12$537
Wed 17/1205:45SFO - SEA
Nonstop2h 21mDelta
Mon 5/121:20SEA - SFO
Nonstop2h 08mDelta
Deal found 9/12$544
Thu 18/1220:46SFO - SEA
Nonstop2h 18mAlaska Airlines
Mon 5/120:36SEA - SFO
Nonstop2h 18mAlaska Airlines
Deal found 10/12$484
Thu 18/1213:58SFO - SEA
Nonstop2h 23mDelta
Mon 19/107:15SEA - SFO
Nonstop2h 20mDelta
Deal found 9/12$540
Thu 18/1205:15SFO - SEA
2 stops10h 10mSouthwest
Mon 5/105:35SEA - SFO
1 stop8h 30mSouthwest
Deal found 9/12$547
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 11 December 2025.
Tue 6/116:03SFO - SEA
1 stop6h 21mDelta
Deal found 9/12$89
Sun 18/117:05SFO - SEA
1 stop5h 17mDelta
Deal found 9/12$104
Thu 1/105:45SFO - SEA
Nonstop2h 21mDelta
Deal found 9/12$111
Mon 12/114:35SFO - SEA
1 stop8h 30mSouthwest
Deal found 10/12$114
Tue 6/114:10SFO - SEA
2 stops7h 40mSouthwest
Deal found 8/12$122
Mon 19/107:57SFO - SEA
1 stop6h 46mAlaska Airlines
Deal found 9/12$125
Thu 15/122:35SFO - SEA
Nonstop2h 24mUnited Airlines
Deal found 9/12$126
Tue 20/108:15SFO - SEA
2 stops12h 05mSouthwest
Deal found 9/12$129
Fri 16/106:00SFO - SEA
Nonstop2h 20mDelta
Deal found 9/12$134
Mon 9/222:39SFO - SEA
Nonstop2h 17mUnited Airlines
Deal found 9/12$141
Wed 13/519:49SFO - SEA
Nonstop2h 11mAlaska Airlines
Deal found 10/12$144
Wed 31/1222:48SFO - SEA
Nonstop2h 11mUnited Airlines
Deal found 9/12$149
Find 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 11 December 2025.
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 11 December 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
Thu 26/3
08:55-14:41
1 stop5h 46m
Seattle/Tacoma Intl
Sat 28/3
16:33-18:49
Nonstop2h 16m
$191
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Fri 23/1
16:03-23:22
1 stop7h 19m
Seattle/Tacoma Intl
Fri 30/1
13:40-15:58
Nonstop2h 18m
$191
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Fri 13/2
08:42-11:03
Nonstop2h 21m
Seattle/Tacoma Intl
Sun 15/2
20:41-22:56
Nonstop2h 15m
$199
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Thu 8/1
16:03-22:24
1 stop6h 21m
Seattle/Tacoma Intl
Mon 12/1
18:05-22:55
1 stop4h 50m
$206
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Thu 26/2
06:00-12:58
1 stop6h 58m
Seattle/Tacoma Intl
Sun 1/3
07:25-12:44
1 stop5h 19m
$206
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Fri 13/3
16:46-19:02
Nonstop2h 16m
Seattle/Tacoma Intl
Sun 15/3
07:20-09:46
Nonstop2h 26m
$221
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Mon 12/1
15:00-22:35
1 stop7h 35m
Seattle/Tacoma Intl
Thu 15/1
05:00-11:50
1 stop6h 50m
$227
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Fri 30/1
05:05-12:05
1 stop7h 00m
Seattle/Tacoma Intl
Sun 1/2
14:15-22:50
1 stop8h 35m
$227
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Wed 14/1
14:35-23:05
1 stop8h 30m
Seattle/Tacoma Intl
Fri 16/1
05:15-14:50
1 stop9h 35m
$235
San FranciscoSeattle
SFO - SEA
SFOSEA
San Francisco
Thu 5/3
08:54-14:44
1 stop5h 50m
Seattle/Tacoma Intl
Sun 8/3
17:55-23:16
1 stop5h 21m
$236
Flights are sorted by cheapest return flights first.
Deals found on 11/12
Showing 1-10 of 23 results
1
2
3
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
Airlines
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 5 December 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 $123). Flying from San Francisco to Seattle in May is currently the most expensive (average of $206). 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 11 December 2025.
It’s typically best to fly out from San Francisco to Seattle at midday. Doing so could potentially save you 74% on the flight price compared to flying in the evening, which is usually more expensive.
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 11 December 2025.
The most flights from SFO to SEA are scheduled on a Monday (99 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (56 on average).
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 132 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, Delta have had the lowest number of delays on this route, with just 10% 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 11 December 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.
The flight was great. Don’t have to make it better. Everything was OK.
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?
You will need to book a flight from San Francisco to Seattle/Tacoma Intl if you want to fly from San Francisco to Seattle. At least 1 airline has flights from San Francisco (SFO) to Seattle/Tacoma Intl (SEA) on a regular basis. There are 72 flights to Seattle from the San Francisco airport per day. If you manage to book one that is nonstop, then you can expect the flight time from SFO to SEA to be around 2h 19m.
How popular is this San Francisco to Seattle flight route?
Flights from San Francisco to Seattle/Tacoma Intl have been viewed 12 times in the past calendar month.
How long is the flight from San Francisco to Seattle?
Departing from San Francisco to Seattle will take you 2h 17m. Airlines will cover a distance of 1093 km. Most flights are nonstop.
What is the cheapest airline to fly from San Francisco to Seattle round-trip?
Flying on Alaska Airlines is currently your cheapest option to Seattle, with prices starting at $160. Alaska Airlines is 56% cheaper than the average price of flights available within the next 90 days to this destination.
What are the most reliable airlines from San Francisco to Seattle?
No one likes to see their flight delayed. When booking a flight from San Francisco to Seattle consider choosing Horizon Air(100%), Aeromexico(93%) or WestJet(89%), as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from San Francisco to Seattle?
Looking at all options, your cheapest flight can be booked for $175. While the most popular route (San Francisco - Seattle/Tacoma Intl) can be booked for $295 on average, our data indicates $281 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 $123). Flying from San Francisco to Seattle in May is currently the most expensive (average of $206). 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 11 December 2025.
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 11 December 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 647,157 searches. Data last updated 11 December 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 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.
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book With Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyse navigation, to offer and measure personalised advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review your choices and withdraw your consent at any time by clicking the ’Privacy Preferences’ link in the page side navigation.