$78+ Cheap flights from Seattle to San Francisco (SEA - SFO)
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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SFO
May 23 — May 301
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Seattle to San Francisco with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Seattle/Tacoma Intl to San Francisco are usually found in January or September, booked 78 days in advance, depart on a Friday or Thursday and return on a Thursday
Cheap flight deals from Seattle to San Francisco
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to San FranciscoExplore the most affordable flight options available from Seattle to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 23, 2026.
Explore the most affordable flight options available from Seattle to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 23, 2026.
This United Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/263:33 pm
SEA
- SFO
Nonstop2h 14m
United Airlines
Sat 5/309:10 pm
SFO
- SEA
Nonstop2h 22m
United Airlines
Deal found 4/21![United Airlines logo]()
$141
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/207:08 am
SEA
- SFO
Nonstop2h 18m
United Airlines
Mon 5/257:00 am
SFO
- SEA
Nonstop2h 22m
United Airlines
Deal found 4/22![United Airlines logo]()
$145
This Alaska Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/149:42 pm
SEA
- SFO
Nonstop2h 17m
Alaska Airlines
Sat 8/158:28 pm
SFO
- SEA
Nonstop2h 13m
Alaska Airlines
Deal found 4/21![Alaska Airlines logo]()
$147
This Expedia deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/122:53 pm
SEA
- SFO
Nonstop2h 21m
Alaska Airlines
Wed 5/138:23 am
SFO
- SEA
Nonstop2h 17m
Alaska Airlines
Deal found 4/22![Alaska Airlines logo]()
$151
This Alaska Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/122:53 pm
SEA
- SFO
Nonstop2h 21m
Alaska Airlines
Tue 5/127:59 pm
SFO
- SEA
Nonstop2h 19m
Alaska Airlines
Deal found 4/17![Alaska Airlines logo]()
$152
This Alaska Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:15 am
SEA
- SFO
Nonstop2h 22m
Alaska Airlines
Mon 8/318:50 pm
SFO
- SEA
Nonstop2h 20m
Alaska Airlines
Deal found 4/22![Alaska Airlines logo]()
$153
This Southwest deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/185:20 pm
SEA
- SFO
1 stop7h 30m
Southwest
Sun 6/216:50 pm
SFO
- SEA
1 stop6h 20m
Southwest
Deal found 4/21![Southwest logo]()
$157
This Southwest deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/185:20 pm
SEA
- SFO
1 stop7h 30m
Southwest
Tue 6/305:20 pm
SFO
- SEA
2 stops7h 20m
Southwest
Deal found 4/21![Southwest logo]()
$158
This Expedia deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/211:21 am
SEA
- SFO
1 stop8h 15m
Multiple Airlines
Tue 6/166:03 am
SFO
- SEA
Nonstop2h 10m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$159
This Southwest deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/35:35 pm
SEA
- SFO
1 stop5h 40m
Southwest
Sat 6/65:55 pm
SFO
- SEA
1 stop7h 15m
Southwest
Deal found 4/21![Southwest logo]()
$161
Best flights from Seattle to San FranciscoDiscover carefully curated flight deals from Seattle to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 23, 2026.
Discover carefully curated flight deals from Seattle to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 23, 2026.
This Southwest deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/45:15 am
SEA
- SFO
1 stop8h 05m
Southwest
Mon 6/85:30 am
SFO
- SEA
1 stop8h 20m
Southwest
Deal found 4/22![Southwest logo]()
$157
This United Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/241:30 pm
SEA
- SFO
Nonstop2h 18m
United Airlines
Tue 5/2610:59 pm
SFO
- SEA
Nonstop2h 14m
United Airlines
Deal found 4/17![United Airlines logo]()
$197
This Delta deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:00 am
SEA
- SFO
Nonstop2h 29m
Delta
Sat 5/165:37 pm
SFO
- SEA
Nonstop2h 18m
Delta
Deal found 4/18![Delta logo]()
$217
This Delta deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2710:00 am
SEA
- SFO
Nonstop2h 29m
Delta
Wed 5/278:30 pm
SFO
- SEA
Nonstop2h 25m
Delta
Deal found 4/19![Delta logo]()
$217
This United Airlines deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/255:00 am
SEA
- SFO
Nonstop2h 10m
United Airlines
Wed 5/2710:59 pm
SFO
- SEA
Nonstop2h 14m
United Airlines
Deal found 4/19![United Airlines logo]()
$227
This Southwest deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/35:20 pm
SEA
- SFO
1 stop7h 30m
Southwest
Sun 7/54:10 pm
SFO
- SEA
1 stop9h 00m
Southwest
Deal found 4/22![Southwest logo]()
$232
This Southwest deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:30 am
SEA
- SFO
2 stops9h 50m
Southwest
Wed 5/2711:25 am
SFO
- SEA
2 stops9h 35m
Southwest
Deal found 4/21![Southwest logo]()
$247
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:00 am
SEA
- SFO
Nonstop2h 18m
United Airlines
Sun 7/57:00 am
SFO
- SEA
Nonstop2h 22m
United Airlines
Deal found 4/22![United Airlines logo]()
$257
This Southwest deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1611:15 am
SEA
- SFO
1 stop7h 40m
Southwest
Tue 5/197:20 am
SFO
- SEA
2 stops13h 00m
Southwest
Deal found 4/20![Southwest logo]()
$248
This Southwest deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2810:55 am
SEA
- SFO
1 stop7h 40m
Southwest
Sun 5/3112:50 pm
SFO
- SEA
2 stops12h 20m
Southwest
Deal found 4/22![Southwest logo]()
$263
This Southwest deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:25 am
SEA
- SFO
2 stops11h 00m
Southwest
Tue 5/267:40 am
SFO
- SEA
1 stop10h 20m
Southwest
Deal found 4/22![Southwest logo]()
$268
Last-minute flights from Seattle to San FranciscoDiscover last-minute flight deals from Seattle to San Francisco. Data last updated April 23, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to San Francisco. Data last updated April 23, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:08 am
SEA
- SFO
Nonstop2h 18m
United Airlines
Wed 5/138:58 pm
SFO
- SEA
Nonstop2h 31m
United Airlines
Deal found 4/21![United Airlines logo]()
$168
This Expedia deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/122:53 pm
SEA
- SFO
Nonstop2h 21m
Alaska Airlines
Wed 5/138:23 am
SFO
- SEA
Nonstop2h 17m
Alaska Airlines
Deal found 4/22![Alaska Airlines logo]()
$151
This Alaska Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/122:53 pm
SEA
- SFO
Nonstop2h 21m
Alaska Airlines
Tue 5/127:59 pm
SFO
- SEA
Nonstop2h 19m
Alaska Airlines
Deal found 4/17![Alaska Airlines logo]()
$152
This Alaska Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/131:50 pm
SEA
- SFO
Nonstop2h 14m
Alaska Airlines
Wed 5/276:00 am
SFO
- SEA
Nonstop2h 17m
Alaska Airlines
Deal found 4/17![Alaska Airlines logo]()
$157
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/207:08 am
SEA
- SFO
Nonstop2h 18m
United Airlines
Mon 5/257:00 am
SFO
- SEA
Nonstop2h 22m
United Airlines
Deal found 4/22![United Airlines logo]()
$145
This Frontier deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/217:50 pm
SEA
- SFO
1 stop12h 11m
Frontier
Sun 5/249:34 am
SFO
- SEA
1 stop9h 31m
Frontier
Deal found 4/20![Frontier logo]()
$165
This United Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/263:33 pm
SEA
- SFO
Nonstop2h 14m
United Airlines
Sat 5/309:10 pm
SFO
- SEA
Nonstop2h 22m
United Airlines
Deal found 4/21![United Airlines logo]()
$141
This United Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:00 am
SEA
- SFO
Nonstop2h 10m
United Airlines
Thu 5/2810:59 pm
SFO
- SEA
Nonstop2h 30m
United Airlines
Deal found 4/21![United Airlines logo]()
$153
This Expedia deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/297:00 am
SEA
- SFO
Nonstop2h 18m
Multiple Airlines
Sat 5/309:34 am
SFO
- SEA
1 stop9h 31m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$164
This Southwest deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/301:20 pm
SEA
- SFO
1 stop8h 00m
Southwest
Mon 6/14:05 pm
SFO
- SEA
1 stop8h 35m
Southwest
Deal found 4/21![Southwest logo]()
$162
One-way flights from Seattle to San FranciscoSearch for one-way flight options from Seattle to San Francisco. Find affordable one-way fares based on user searches. Data last updated April 23, 2026.
Search for one-way flight options from Seattle to San Francisco. Find affordable one-way fares based on user searches. Data last updated April 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1911:06 am
SEA
- SFO
1 stop8h 37m
Frontier
Deal found 4/19![Frontier logo]()
$78
This Southwest deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1312:10 pm
SEA
- SFO
1 stop6h 20m
Southwest
Deal found 4/22![Southwest logo]()
$79
This Southwest deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1212:10 pm
SEA
- SFO
1 stop6h 20m
Southwest
Deal found 4/21![Southwest logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1311:06 am
SEA
- SFO
1 stop8h 37m
Frontier
Deal found 4/18![Frontier logo]()
$82
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:36 pm
SEA
- SFO
Nonstop2h 13m
United Airlines
Deal found 4/22![United Airlines logo]()
$83
This Southwest deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2611:35 am
SEA
- SFO
2 stops8h 20m
Southwest
Deal found 4/21![Southwest logo]()
$84
This Frontier deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/293:19 pm
SEA
- SFO
1 stop9h 04m
Frontier
Deal found 4/19![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2711:21 am
SEA
- SFO
1 stop9h 43m
Frontier
Deal found 4/19![Frontier logo]()
$91
This Trip.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1811:06 am
SEA
- SFO
1 stop7h 25m
Frontier
Deal found 4/20![Frontier logo]()
$92
Find flight deals from Seattle to San Francisco
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to San Francisco (SFO). 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 April 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $141 (United Airlines) |
One-way from | $78 (Kiwi.com) |
Popular in | April |
Cheapest in | January |
Average price | $303 |
Good round-trip deal | $256 or less |
Good one-way deal | $185 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to San Francisco 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 2,558,603 searches. Data last updated April 23, 2026.
Use the filters below to find and compare flights from Seattle to San Francisco that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Thu 6/4
5:15 am-1:20 pm
1 stop8h 05m
San Francisco
Mon 6/8
5:30 am-1:50 pm
1 stop8h 20m
$157
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Sun 5/24
1:30 pm-3:48 pm
Nonstop2h 18m
San Francisco
Tue 5/26
10:59 pm-1:13 am
Nonstop2h 14m
$197
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Tue 5/12
10:00 am-12:29 pm
Nonstop2h 29m
San Francisco
Sat 5/16
5:37 pm-7:55 pm
Nonstop2h 18m
$217
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Wed 5/27
10:00 am-12:29 pm
Nonstop2h 29m
San Francisco
Wed 5/27
8:30 pm-10:55 pm
Nonstop2h 25m
$217
Quickest round-trip
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Mon 5/25
5:00 am-7:10 am
Nonstop2h 10m
San Francisco
Wed 5/27
10:59 pm-1:13 am
Nonstop2h 14m
$227
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Fri 7/3
5:20 pm-12:50 am
1 stop7h 30m
San Francisco
Sun 7/5
4:10 pm-1:10 am
1 stop9h 00m
$232
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Wed 5/20
5:30 am-3:20 pm
2 stops9h 50m
San Francisco
Wed 5/27
11:25 am-9:00 pm
2 stops9h 35m
$247
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Sat 5/16
11:15 am-6:55 pm
1 stop7h 40m
San Francisco
Tue 5/19
7:20 am-8:20 pm
2 stops13h 00m
$248
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Fri 7/3
7:00 am-9:18 am
Nonstop2h 18m
San Francisco
Sun 7/5
7:00 am-9:22 am
Nonstop2h 22m
$257
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Thu 5/28
10:55 am-6:35 pm
1 stop7h 40m
San Francisco
Sun 5/31
12:50 pm-1:10 am
2 stops12h 20m
$263
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Seattle to San Francisco
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to San Francisco in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*2 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-San Francisco flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to San Francisco
Have a flexible travel schedule? Discover the best time to fly to San Francisco from Seattle with our price prediction graph.
SEA-SFO
Estimated round-trip 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 Seattle to San Francisco
Prices
Airlines
Delays
How far ahead should I book a flight from Seattle to San Francisco?
Use this chart to determine the optimal time to book a round-trip flight from Seattle to San Francisco. Price data was last updated on April 17, 2026.
To ensure you get the cheapest price possible for a flight from Seattle to San Francisco, you should look to book at least 78 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 Seattle to San Francisco?
Currently, January is the cheapest month in which you can book a flight from Seattle to San Francisco (average of $187). Flying from Seattle to San Francisco in April is currently the most expensive (average of $303). 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 SEA to SFO?
Find hourly flight availability from Seattle to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 23, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 16% on flights from Seattle to San Francisco by exploring options for tickets at noon.
What is the cheapest day to fly from Seattle to San Francisco?
Use this chart to determine the cheapest time to fly round-trip from Seattle to San Francisco. Price data was last updated on April 18, 2026.
Travelers seeking maximum savings on their Seattle to San Francisco flight should consider departing on Friday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from Seattle to San Francisco delayed?
About 21% of weekly flights between Seattle and San Francisco have experienced delays in the past year, with the average delay time being 132 minutes.
What is the most punctual flight time for Seattle to San Francisco flights?
Historically, flights departing at night 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 Seattle to San Francisco flights?
Over the last year, United Airlines have had the lowest number of delays on this route, with just 15% of flights being delayed.
The best insider tips for Seattle to San Francisco flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to San Francisco trip
Our travel experts
Reviews of airlines servicing San Francisco
Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated April 23, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andHawaiian Airlines from Seattle to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Entertainment
7.0
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Food
7.0
Entertainment
7.0
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Food
7.0
Entertainment
7.0
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Food
7.0
Entertainment
7.0
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Food
7.0
Entertainment
7.0
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Food
7.0
Entertainment
7.0
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Related info for your journey
Find useful and relevant information for your journey from Seattle to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSouth San Francisco
Santa Cruz
Santa Clara
Rancho Cordova
San Bruno
Watsonville
San Ramon
Union City
Emeryville
Newark
Vacaville
Roseville
San Carlos
Redwood City
Sunnyvale
Turlock
San Lorenzo
Davis
Manteca
Elk Grove
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Seattle
Popular flights
San Francisco flight routes
Alternative routes for Seattle to San Francisco
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to San Francisco by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to San Francisco by cabin class
Find flights from Seattle to San Francisco, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and San Francisco flights
Browse other Seattle and San Francisco flight options. Last updated on April 23, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on April 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Francisco
Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 23, 2026.
Top 7 airlines flying from Seattle to San Francisco
Discover the top 7 airlines that operate flights from Seattle to San Francisco. 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 2,558,603 searches. Data last updated April 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$78 | Average$262 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$79 | Average$200 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$85 | Average$208 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$103 | Average$587 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$117 | Average$250 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$117 | Average$280 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$321 | Average$397 | FlexibilityNo cancel fee | On-time71% |