Cheap flights from Seattle to San Francisco from $104
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.
SEA — SFO
7 Jan — 14 Jan1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Seattle/Tacoma Intl to San Francisco are usually found in January or February, booked 83 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday
Cheap flight deals from Seattle to San Francisco
Enter your travel dates to find the best prices.
Cheapest flights from Seattle to San Francisco
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 8 December 2025.
Sat 27/1215:29SEA - SFO
1 stop4h 20mAlaska Airlines
Thu 1/107:00SFO - SEA
Nonstop2h 17mAlaska Airlines
Deal found 6/12$236
Wed 31/1219:23SEA - SFO
Nonstop2h 18mAlaska Airlines
Thu 1/116:42SFO - SEA
Nonstop2h 17mAlaska Airlines
Deal found 6/12$259
Sat 27/1213:19SEA - SFO
1 stop6h 30mAlaska Airlines
Wed 31/1217:42SFO - SEA
Nonstop2h 15mAlaska Airlines
Deal found 6/12$274
Tue 30/1205:00SEA - SFO
Nonstop2h 36mUnited Airlines
Thu 1/106:00SFO - SEA
Nonstop2h 23mUnited Airlines
Deal found 5/12$287
Tue 30/1220:36SEA - SFO
Nonstop2h 18mAlaska Airlines
Thu 8/107:00SFO - SEA
Nonstop2h 18mAlaska Airlines
Deal found 7/12$289
Wed 31/1219:23SEA - SFO
Nonstop2h 18mAlaska Airlines
Fri 2/107:00SFO - SEA
Nonstop2h 17mAlaska Airlines
Deal found 6/12$296
Tue 30/1207:05SEA - SFO
Nonstop2h 24mUnited Airlines
Wed 31/1222:48SFO - SEA
Nonstop2h 11mUnited Airlines
Deal found 7/12$305
Wed 31/1219:12SEA - SFO
Nonstop2h 18mUnited Airlines
Mon 5/114:41SFO - SEA
Nonstop2h 11mUnited Airlines
Deal found 7/12$310
Tue 30/1221:35SEA - SFO
Nonstop2h 19mAlaska Airlines
Thu 1/107:00SFO - SEA
Nonstop2h 17mAlaska Airlines
Deal found 6/12$311
Tue 30/1221:35SEA - SFO
Nonstop2h 19mAlaska Airlines
Wed 7/107:57SFO - SEA
1 stop6h 46mAlaska Airlines
Deal found 6/12$327
Wed 31/1219:23SEA - SFO
Nonstop2h 18mAlaska Airlines
Mon 5/122:45SFO - SEA
1 stop15h 59mAlaska Airlines
Deal found 6/12$331
Sun 28/1221:35SEA - SFO
Nonstop2h 19mAlaska Airlines
Tue 6/107:00SFO - SEA
Nonstop2h 17mAlaska Airlines
Deal found 6/12$334
Best flights from Seattle to San Francisco
Discover carefully curated flight deals from Seattle to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 December 2025.
Fri 23/109:25SEA - SFO
Nonstop2h 18mUnited Airlines
Sun 25/116:10SFO - SEA
Nonstop2h 17mUnited Airlines
Deal found 7/12$176
Thu 29/120:50SEA - SFO
Nonstop2h 13mAlaska Airlines
Sun 1/206:00SFO - SEA
Nonstop2h 18mAlaska Airlines
Deal found 6/12$176
Thu 15/121:20SEA - SFO
Nonstop2h 08mDelta
Sun 18/114:39SFO - SEA
Nonstop2h 19mDelta
Deal found 5/12$178
Thu 8/120:50SEA - SFO
Nonstop2h 13mAlaska Airlines
Sat 10/107:00SFO - SEA
Nonstop2h 18mAlaska Airlines
Deal found 5/12$176
Fri 9/109:25SEA - SFO
Nonstop2h 18mUnited Airlines
Fri 16/122:35SFO - SEA
Nonstop2h 24mUnited Airlines
Deal found 6/12$176
Tue 20/109:55SEA - SFO
1 stop7h 52mDelta
Tue 27/114:35SFO - SEA
Nonstop2h 19mDelta
Deal found 5/12$191
Thu 19/220:41SEA - SFO
Nonstop2h 15mAlaska Airlines
Mon 23/220:47SFO - SEA
Nonstop2h 20mAlaska Airlines
Deal found 7/12$176
Fri 16/109:25SEA - SFO
Nonstop2h 18mUnited Airlines
Mon 19/118:55SFO - SEA
Nonstop2h 17mUnited Airlines
Deal found 7/12$176
Fri 20/220:41SEA - SFO
Nonstop2h 15mAlaska Airlines
Mon 23/219:28SFO - SEA
Nonstop2h 20mAlaska Airlines
Deal found 7/12$176
Thu 5/209:25SEA - SFO
Nonstop2h 18mUnited Airlines
Mon 9/222:39SFO - SEA
Nonstop2h 17mUnited Airlines
Deal found 7/12$176
Sat 17/115:45SEA - SFO
Nonstop2h 14mAlaska Airlines
Sun 18/106:00SFO - SEA
Nonstop2h 18mAlaska Airlines
Deal found 7/12$176
Direct flights from Seattle to San Francisco
Explore direct flight options from Seattle to San Francisco based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 December 2025.
Tue 6/111:25SEA - SFO
Nonstop2h 13mDelta
Sat 10/110:35SFO - SEA
Nonstop2h 23mDelta
Deal found 5/12$176
Thu 15/121:20SEA - SFO
Nonstop2h 08mDelta
Sun 18/114:39SFO - SEA
Nonstop2h 19mDelta
Deal found 5/12$178
Tue 6/120:36SEA - SFO
Nonstop2h 18mAlaska Airlines
Thu 8/107:00SFO - SEA
Nonstop2h 18mAlaska Airlines
Deal found 7/12$179
Tue 20/115:45SEA - SFO
Nonstop2h 14mHawaiian Airlines
Tue 27/118:18SFO - SEA
Nonstop2h 16mHawaiian Airlines
Deal found 5/12$184
Mon 12/111:43SEA - SFO
Nonstop2h 17mAlaska Airlines
Mon 12/116:46SFO - SEA
Nonstop2h 19mAlaska Airlines
Deal found 6/12$190
Tue 6/115:49SEA - SFO
Nonstop2h 18mAlaska Airlines
Tue 6/120:46SFO - SEA
Nonstop2h 18mAlaska Airlines
Deal found 7/12$193
Sat 14/209:19SEA - SFO
Nonstop2h 19mUnited Airlines
Wed 18/209:00SFO - SEA
Nonstop2h 18mUnited Airlines
Deal found 6/12$194
Tue 13/111:43SEA - SFO
Nonstop2h 17mAlaska Airlines
Thu 15/119:40SFO - SEA
Nonstop2h 18mAlaska Airlines
Deal found 7/12$199
Mon 5/121:35SEA - SFO
Nonstop2h 19mAlaska Airlines
Sat 10/119:40SFO - SEA
Nonstop2h 18mAlaska Airlines
Deal found 7/12$200
Sat 14/220:30SEA - SFO
Nonstop2h 11mDelta
Tue 17/214:39SFO - SEA
Nonstop2h 19mDelta
Deal found 6/12$206
Sun 11/121:20SEA - SFO
Nonstop2h 08mDelta
Wed 14/110:35SFO - SEA
Nonstop2h 23mDelta
Deal found 6/12$214
Fri 16/121:20SEA - SFO
Nonstop2h 08mDelta
Sun 18/106:00SFO - SEA
Nonstop2h 20mDelta
Deal found 6/12$221
Last-minute flights from Seattle to San Francisco
Discover last-minute flight deals from Seattle to San Francisco. Data last updated 8 December 2025 and is based on user searches.
Mon 5/121:35SEA - SFO
Nonstop2h 19mAlaska Airlines
Sat 10/119:40SFO - SEA
Nonstop2h 18mAlaska Airlines
Deal found 7/12$200
Tue 6/115:49SEA - SFO
Nonstop2h 18mAlaska Airlines
Sat 10/119:40SFO - SEA
Nonstop2h 18mAlaska Airlines
Deal found 5/12$176
Tue 6/121:35SEA - SFO
Nonstop2h 19mAlaska Airlines
Fri 9/119:40SFO - SEA
Nonstop2h 18mAlaska Airlines
Deal found 7/12$179
Tue 6/115:49SEA - SFO
Nonstop2h 18mAlaska Airlines
Tue 6/120:46SFO - SEA
Nonstop2h 18mAlaska Airlines
Deal found 7/12$193
Thu 8/118:05SEA - SFO
1 stop4h 50mDelta
Sat 10/114:39SFO - SEA
Nonstop2h 19mDelta
Deal found 5/12$191
Mon 12/111:43SEA - SFO
Nonstop2h 17mAlaska Airlines
Mon 12/116:46SFO - SEA
Nonstop2h 19mAlaska Airlines
Deal found 6/12$190
Tue 13/111:43SEA - SFO
Nonstop2h 17mAlaska Airlines
Thu 15/119:40SFO - SEA
Nonstop2h 18mAlaska Airlines
Deal found 7/12$199
Tue 13/111:35SEA - SFO
1 stop4h 47mAlaska Airlines
Tue 13/119:40SFO - SEA
Nonstop2h 18mAlaska Airlines
Deal found 6/12$205
Thu 15/121:20SEA - SFO
Nonstop2h 08mDelta
Sun 18/114:39SFO - SEA
Nonstop2h 19mDelta
Deal found 5/12$178
Tue 20/115:45SEA - SFO
Nonstop2h 14mHawaiian Airlines
Tue 27/118:18SFO - SEA
Nonstop2h 16mHawaiian Airlines
Deal found 5/12$184
Fri 23/110:51SEA - SFO
1 stop6h 09mMultiple Airlines
Mon 26/114:30SFO - SEA
Nonstop2h 17mMultiple Airlines
Deal found 7/12$187
Fri 23/119:00SEA - SFO
1 stop4h 56mDelta
Tue 27/106:00SFO - SEA
1 stop6h 33mDelta
Deal found 5/12$206
One-way flights from Seattle to San Francisco
Search for one-way flight options from Seattle to San Francisco. Find affordable one-way fares based on user searches. Data last updated 8 December 2025.
Tue 6/107:15SEA - SFO
Nonstop2h 20mDelta
Deal found 7/12$104
Sat 14/209:19SEA - SFO
Nonstop2h 19mUnited Airlines
Deal found 7/12$107
Thu 12/311:45SEA - SFO
Nonstop2h 19mDelta
Deal found 6/12$111
Mon 19/106:03SEA - SFO
Nonstop2h 22mUnited Airlines
Deal found 6/12$113
Wed 7/108:45SEA - SFO
1 stop5h 50mSouthwest
Deal found 6/12$114
Sun 18/108:25SEA - SFO
1 stop3h 58mAlaska Airlines
Deal found 6/12$125
Mon 5/105:35SEA - SFO
1 stop8h 30mSouthwest
Deal found 6/12$126
Fri 13/309:50SEA - SFO
1 stop6h 54mAlaska Airlines
Deal found 6/12$134
Mon 9/309:20SEA - SFO
Nonstop2h 19mUnited Airlines
Deal found 7/12$141
Wed 24/1219:23SEA - SFO
Nonstop2h 18mHawaiian Airlines
Deal found 6/12$144
Wed 4/210:53SEA - SFO
1 stop11h 02mAlaska Airlines
Deal found 6/12$146
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 8 December 2025.
Customise 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 647,157 searches. Data last updated 8 December 2025.
Use the filters below to find and compare flights from Seattle to San Francisco that are best for you.
Fly from
Seattle
Fly to
San Francisco
Route
Depart
Return
Price
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Fri 23/1
09:25-11:43
Nonstop2h 18m
San Francisco
Sun 25/1
16:10-18:27
Nonstop2h 17m
$176
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Thu 29/1
20:50-23:03
Nonstop2h 13m
San Francisco
Sun 1/2
06:00-08:18
Nonstop2h 18m
$176
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Thu 8/1
20:50-23:03
Nonstop2h 13m
San Francisco
Sat 10/1
07:00-09:18
Nonstop2h 18m
$176
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Fri 9/1
09:25-11:43
Nonstop2h 18m
San Francisco
Fri 16/1
22:35-00:59
Nonstop2h 24m
$176
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Thu 19/2
20:41-22:56
Nonstop2h 15m
San Francisco
Mon 23/2
20:47-23:07
Nonstop2h 20m
$176
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Fri 16/1
09:25-11:43
Nonstop2h 18m
San Francisco
Mon 19/1
18:55-21:12
Nonstop2h 17m
$176
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Fri 20/2
20:41-22:56
Nonstop2h 15m
San Francisco
Mon 23/2
19:28-21:48
Nonstop2h 20m
$176
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Thu 5/2
09:25-11:43
Nonstop2h 18m
San Francisco
Mon 9/2
22:39-00:56
Nonstop2h 17m
$176
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Sat 17/1
15:45-17:59
Nonstop2h 14m
San Francisco
Sun 18/1
06:00-08:18
Nonstop2h 18m
$176
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Thu 15/1
21:20-23:28
Nonstop2h 08m
San Francisco
Sun 18/1
14:39-16:58
Nonstop2h 19m
$178
Flights are sorted by cheapest return flights first.
Deals found on 6/12
Showing 1-10 of 22 results
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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.
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 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 return flight from Seattle to San Francisco. Price data was last updated on 5 December 2025.
Booking 30 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to San Francisco. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 $126). Flying from Seattle to San Francisco 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 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 8 December 2025.
One of the essential ways to save on airfare from Seattle to San Francisco is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the morning could potentially save you up to 86% on airfare.
Weekly flight availability from Seattle to San Francisco
Explore weekly flight availability from Seattle to San Francisco. 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 8 December 2025.
The most flights from SEA to SFO are scheduled on a Sunday (89 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (53 on average).
How often are flights from Seattle to San Francisco delayed?
About 19% of weekly flights between Seattle and San Francisco have experienced delays in the past year, with the average delay time being 133 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 past year, United Airlines have had the lowest number of delays on this route, with just 14% of flights being delayed.
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.
How popular is this Seattle to San Francisco flight route?
This flight path from Seattle/Tacoma Intl to San Francisco was viewed by 48 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
How long is the flight from Seattle to San Francisco?
For as low as $176, Delta can have you in San Francisco from Seattle in 2h 11m. Airlines will cover a distance of 1093 km. All flights are typically direct.
What are the cheapest airlines to fly from Seattle to San Francisco one-way?
For one-way options, check prices for Delta. According to our data, you can fly for as low as $99. Users have also found prices from $99 and $114 on Alaska Airlines and Hawaiian Airlines, respectively.
What are the most reliable airlines from Seattle to San Francisco?
The top 3 most reliable airlines when flying from Seattle to San Francisco are Horizon Air (89%), WestJet (80%) and Turkish Airlines (79%).
What are the cheapest flights from Seattle to San Francisco?
Looking for the cheapest flight from Seattle to San Francisco? While on average our users pay $869, our data indicates the cheapest price to be $141. The most popular route (Seattle/Tacoma Intl - San Francisco), is priced around $295.
Can I find deals for business class flights from Seattle to San Francisco?
Yes. Cheapflights offers flight deals from Seattle to San Francisco 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 Seattle to San Francisco?
Currently, January is the cheapest month in which you can book a flight from Seattle to San Francisco (average of $126). Flying from Seattle to San Francisco 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.
Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 8 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 Seattle to San Francisco?
When you search for this flight from Seattle to San Francisco, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Seattle to San Francisco?
Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to San Francisco for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Seattle to San Francisco with no change fees?
Certainly. Search results for flights to San Francisco from Seattle 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 Seattle to San Francisco become cheaper?
Not ready to book yet? You can track prices for flights from Seattle to San Francisco on Cheapflights with our Price Alert feature and get notified when better prices are available.
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