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Cheap flights from Seattle to San Francisco (SEA - SFO)

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The best prices from Seattle to San Francisco are usually found in March or January, booked 33 days in advance, depart on a Thursday or Saturday and return on a Saturday

How to find the cheapest flight from
Seattle (SEA) to San Francisco (SFO)

SEA - SFO
Price
$146 - $182
SFO
Temperature
59 - 77 °F
SFO
Rainfall
0 - 4.7 inches

Popular in

December

High demand for flights, 13% potential price rise

Cheapest in

March

Best time to find cheap flights, 8% potential price drop

Round-trip from

$146

From Seattle to San Francisco

One-way from

$68

One-way flight from Seattle to San Francisco

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Seattle to San Francisco?

Saturday flights are generally found to be more expensive for flights from Seattle to San Francisco. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Francisco.

How far in advance should I book a flight from Seattle to San Francisco?

To save up to 99% on this flight, we recommend booking at least 61 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Seattle to San Francisco from $416 1-2 weeks out and tickets from $638 for flights departing within the next 72 hours.

When is the cheapest time to fly from Seattle to San Francisco (SEA - SFO)?

Unlike in the morning, when flights are generally more expensive, you can save up to 12% on flights from Seattle to San Francisco by exploring options for tickets in the evening.

Cheap flights from Seattle to San Francisco in December, January 2021

The best prices found for SEA to SFO flights for December, January
13 Dec - 25 Dec
$68pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
14 Dec - 20 Dec
$73pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
19 Dec - 1 Jan
$77pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl

Seattle to San Francisco 2021 flight deals

Cheap flights to San Francisco from Seattle found for this year
13 Dec - 25 Dec
$68pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
14 Dec - 20 Dec
$73pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
19 Dec - 1 Jan
$77pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl

Non-stop flights to San Francisco from Seattle

Save time with Seattle to San Francisco direct flight deals
27 Jan - 27 Jan
$91pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco
SFO
San Francisco
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
6 Jan - 13 Jan
$97pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco
SFO
San Francisco
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
9 Feb - 13 Feb
$107pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
Non-Stop
SFO
San Francisco
SFO
San Francisco
United Airlines
Non-Stop
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle to San Francisco

Late deals on round-trip flights to San Francisco from Seattle, departing today and this week
11 Dec - 25 Dec
$68pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
11 Dec - 9 Jan
$88pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
11 Dec - 3 Jan
$95pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl

One-way flights to San Francisco from Seattle

The cheapest one-way flights from Seattle to San Francisco
3:20 pm - 6:37 am
Multiple Airlines
1 Stop
15h 17m
SEA - SFO
Multiple Airlines
$68
FlyFar
2:50 am - 5:13 am
Delta
Nonstop
2h 23m
SEA - SFO
Delta
$69
Delta
4:08 am - 3:45 am
Frontier
2 Stops
23h 37m
SEA - SFO
Frontier
$70
Gotogate

Related info for your journey

Useful info, stats and facts about Seattle to San Francisco flights.

Flight FAQs

From Seattle to San Francisco

Are flight prices decreasing from Seattle to San Francisco due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Seattle and San Francisco for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Seattle/Tacoma Intl to San Francisco to control the spread of COVID-19?

New policies can now be found on Alaska Airlines, JetBlue, and Southwest to help keep travelers safe while flying. New policies for travelers booking flights from Seattle/Tacoma Intl to San Francisco include masks being provided and required on board, daily cleaning and sanitization, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially distanced seating (for a limited time). Keep in mind that policies will vary by airline.

Which airlines flying from Seattle/Tacoma Intl to San Francisco have flexible cancellations due to COVID-19?

Some of our airline partners flying from Seattle/Tacoma Intl to San Francisco have new flexible policies in place due to COVID-19. Alaska Airlines, United Airlines, and Delta are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Alaska Airlines with this kind of flexibility.

Can I find flights from Seattle to San Francisco for under $100 on Cheapflights?

Yes, there are multiple flights from Seattle to San Francisco for under $100. The cheapest flight booked recently is on Frontier for just $68, but on average you can expect to pay $87.

Are there nonstop flights from Seattle to San Francisco for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Seattle to San Francisco under $100. A good price for a nonstop flight from Seattle to San Francisco is less than $147.

Are there last-minute flights available from Seattle to San Francisco for under $100?

There are currently 20+ open flights from Seattle to San Francisco within the next 7 days for less than $100.

What days are nonstop flights available from Seattle to San Francisco?

You can find nonstop flights on the following days: Sunday, Tuesday, Wednesday, Thursday, Friday, Saturday.

How many flights depart from Seattle to San Francisco on average per day?

On average, you can expect to see 5 flights from Seattle/Tacoma Intl to San Francisco a day.
Morning (6am - Noon) - 20% of flight departures
Afternoon (Noon - 6pm) - 40% of flight departures
Evening (6pm - Midnight) - 40% of flight departures

Does it rain more in Seattle or San Francisco?

When traveling, we recommend packing in preparation to handle common weather conditions. The rainfall in Seattle is typically similar to San Francisco. We can gather that this will continue over the next 22 days.

Is Seattle weather warmer or cooler than San Francisco?

With an average temperature of 77 °F, peak weather can be found in September. As a traveler, expect to see changes in flight prices during that period. The temperatures in San Francisco are hotter than in Seattle.

How long is the flight from Seattle to San Francisco?

Alaska Airlines, Delta, and Frontier can get you from Seattle to San Francisco in just under 2h 11m. Your travel time can differ by up to 5h 40m. Seattle and San Francisco are separated by a distance of 683 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines flying from Seattle to San Francisco round-trip?

According to our current data, Frontier ($68), and Alaska Airlines ($97) offers the cheapest pricing from Seattle to San Francisco. Users have found that Frontier is 57% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Seattle to San Francisco one-way?

$34 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta, with prices from $49.

Alternative routes for Seattle to San Francisco

Destination information for San Francisco

Things to know before you go. Useful info for your trip from Seattle to San Francisco
Flight duration
2h 13m
Average temperature for December in San Francisco
59.0 °F
Avg rainfall for December in San Francisco
4.7 ″

Airports servicing Seattle

Airports servicing San Francisco

Top 9 airlines from Seattle to San Francisco

The chart below displays the airlines Cheapflights users traveling from Seattle to San Francisco choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Airline Cheapest Average Flexibility On-time COVID-19 safety
Delta
$66 $181 No cancel fee N/A
Southwest
$98 $185 No cancel fee 63%
Alaska Airlines
$59 $191 No cancel fee 75%
United Airlines
$68 $192 No cancel fee 69%
Frontier
$118 $231 No cancel fee 62%
Spirit Airlines
$100 $247 No cancel fee 65%
American Airlines
$97 $334 No cancel fee 71%
JSX
$238 $337 No cancel fee N/A

We couldn't confirm the COVID-19 safety measures taken by JSX. Please check directly on their website for additional information.

JetBlue
$149 $363 No cancel fee 62%

Hourly flight availability from Seattle to San Francisco

Afternoon Noon to 6 PM 56% of SEA to SFO departures
Morning 6 AM to noon 30% of SEA to SFO departures
Evening 6 PM to midnight 10% of SEA to SFO departures
Early morning Midnight to 6 AM 4% of SEA to SFO departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Seattle to San Francisco
Sunday
18 daily flights
Monday
36 daily flights
Tuesday
14 daily flights
Wednesday
29 daily flights
Thursday
12 daily flights
Friday
17 daily flights
Saturday
22 daily flights
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