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

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

The best prices from San Francisco to Seattle/Tacoma Intl are usually found in February or October, booked 26 days in advance, depart on a Saturday or Thursday and return on a Thursday

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

All the information you need to plan the best SFO to SEA flight in 2021: compare San Francisco to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.
SFO - SEA
Price
$147 - $199
SEA
Temperature
41 - 66.2 °F
SEA
Precipitation
0.7 - 6.6 inches

Popular in

December

High demand for flights, 18% potential price rise

Cheapest in

February

Best time to find cheap flights, 10% potential price drop

Round-trip from

$147

From San Francisco to Seattle/Tacoma Intl

One-way from

$76

One-way flight from San Francisco to Seattle/Tacoma Intl

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 San Francisco to Seattle?

Travelers have found that booking a Friday departure is the best way to save up to 19% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 27 days in advance, which can save you up to 178% on flights from San Francisco to Seattle compared to booking the week you need them. Waiting 27 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $267. For sooner than that we have options available in the next 3 days from $437.

What is the cheapest month to fly from San Francisco to Seattle?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, February can be a great choice for travel to Seattle. Flights to Seattle from San Francisco in February are about $164 on average during February, but can be found for as low as $104.

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

A simple way to save on the total cost of your ticket is to fly from San Francisco to Seattle in the morning. If you’re flexible enough to do this you can expect to save up to 8% on your trip compared to booking a flight in the afternoon.

Cheap flights from San Francisco to Seattle in October, November 2021

The best prices found for SFO to SEA flights for October, November
2 Nov - 10 Nov
$93pp
SFO
San Francisco
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco
2 Nov - 10 Nov
$108pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco
2 Nov - 2 Nov
$112pp
SFO
San Francisco
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco

San Francisco to Seattle 2021 flight deals

Cheap flights to Seattle from San Francisco found for this year
2 Nov - 10 Nov
$93pp
SFO
San Francisco
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco
2 Nov - 10 Nov
$108pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco
2 Nov - 2 Nov
$112pp
SFO
San Francisco
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco

Non-stop flights to Seattle from San Francisco

Save time with San Francisco to Seattle direct flight deals
2 Nov - 10 Nov
$93pp
SFO
San Francisco
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco
2 Nov - 2 Nov
$112pp
SFO
San Francisco
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco
18 Nov - 21 Nov
$113pp
SFO
San Francisco
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco

Last minute flights from San Francisco to Seattle

Late deals on round-trip flights to Seattle from San Francisco, departing today and this week
29 Oct - 3 Nov
$115pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco
27 Oct - 12 Nov
$119pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco
27 Oct - 2 Nov
$124pp
SFO
San Francisco
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SFO
San Francisco

One-way flights to Seattle/Tacoma Intl from San Francisco

The cheapest one-way flights from San Francisco to Seattle
1:53 am - 9:30 am
American Airlines
1 Stop
7h 37m
SFO - SEA
American Airlines
1:00 am - 8:15 am
United Airlines
1 Stop
7h 15m
SFO - SEA
United Airlines
$78
United
2:48 pm - 5:05 pm
Delta
Nonstop
2h 17m
SFO - SEA
Delta
$79
Delta

Related info for your journey

Useful info, stats and facts about <span class="emphasized">San Francisco</span> to <span class="emphasized">Seattle</span> flights.

Flight FAQs

From San Francisco to Seattle

What airports do I use to fly from San Francisco to Seattle?

Seattle/Tacoma Intl is the airport most travelers will use when flying to Seattle from San Francisco. Booking flights from San Francisco (SFO) to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 40 daily flights to Seattle from 10 different airlines. 2h 08m is how long a flight from San Francisco to Seattle/Tacoma Intl will take if you book a nonstop flight.

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

Due to the rapidly changing circumstances due to COVID-19, airlines like Alaska Airlines, United Airlines, and Delta flying from San Francisco to Seattle/Tacoma Intl have implemented new flexible cancellation policies.

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

Yes, there are multiple flights from San Francisco to Seattle for under $100. The cheapest flight booked recently is on Alaska Airlines for just $93, but on average you can expect to pay $116.

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

Cheapflights has at least 20 direct flights from San Francisco to Seattle under $100. A good price for a nonstop flight from San Francisco to Seattle is less than $132.

Are there last-minute flights available from San Francisco to Seattle for under $200?

There are currently 20+ open flights from San Francisco to Seattle within the next 7 days for less than $200.

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

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

How popular is this San Francisco to Seattle flight route?

Within the past month, 346 users have taken a look at flights from San Francisco to Seattle/Tacoma Intl.

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

65 flight departures from San Francisco to Seattle per day on average.
Early Morning (Midnight to 6am) - 6% of flight departures
Morning (6am - Noon) - 15% of flight departures
Afternoon (Noon - 6pm) - 35% of flight departures
Evening (6pm - Midnight) - 43% of flight departures

How long is the flight from San Francisco to Seattle?

There are many flights that can get you from San Francisco to Seattle in 2h 21m. Fly via Alaska Airlines, Frontier, or Delta to get the fastest option. The distance from San Francisco to Seattle is about 683 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

Our cheapest airline available from San Francisco to Seattle is Alaska Airlines. Our recent data shows that you can find tickets from as low as $93 on this airline. Additional options worth looking into are Frontier and Delta, starting at $124 and $127 round-trip. Alaska Airlines is currently priced 43% below the average price you’ll pay for this route.

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

To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $35. Frontier flights start at $60 while deals on Delta start at $69 one-way.

What are the most reliable airlines from San Francisco to Seattle?

Before booking your flight to Seattle from San Francisco, check out the most reliable airlines to get you to your destination on time: Air France (100%), Virgin Atlantic (97%), Icelandair( 97%).

What are the cheapest flights from San Francisco to Seattle?

While on average a flight from San Francisco to Seattle is generally $291, our data shows the cheapest flight currently is $58. When looking at the most popular route, (San Francisco - Seattle/Tacoma Intl), you can expect to pay $117 for that flight.

What are the most popular airlines that fly from San Francisco to Seattle?

Major Airline, American Airlines and Alaska Airlines are the most popular airlines when flying from San Francisco to Seattle.

COVID Restrictions

View COVID Travel Restrictions for Seattle, WA

Do I need a COVID test to fly to Seattle from San Francisco?

Information is based on travel restrictions for travel to Seattle/Tacoma Intl within the United States

Most visitors from San Francisco need to provide a negative COVID-19 test result and/or quarantine to enter Seattle/Tacoma Intl.

COVID-19 testing requirements
Visitors from San Francisco must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from San Francisco are not required to quarantine after entering Seattle/Tacoma Intl.

Do I need a test to fly back to San Francisco from Seattle?

Returning to San Francisco from Seattle/Tacoma Intl

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to San Francisco.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering San Francisco.

Hide COVID Travel Restrictions for Seattle, WA

Alternative routes for San Francisco to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Seattle

Things to know before you go - useful duration and weather info for your trip from San Francisco to Seattle.
Flight duration from SFO to SEA
2h 21m
Average temperature for October in Seattle
60.8 °F
Avg rainfall for October in Seattle
3.5 ″

Airports servicing San Francisco

Airports servicing Seattle

Top 8 airlines flying from San Francisco to Seattle/Tacoma Intl

The chart below displays the airlines Cheapflights users traveling from San Francisco to Seattle 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
$68 $189 No cancel fee N/A
United Airlines
$68 $211 No cancel fee 69%
Alaska Airlines
$68 $207 No cancel fee 75%
Southwest
$72 $233 No cancel fee 63%
Spirit Airlines
$104 $248 No cancel fee 65%
American Airlines
$113 $333 No cancel fee 71%
JetBlue
$149 $307 No cancel fee 62%
JSX
$248 $351 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.

Hourly flight availability from San Francisco to Seattle

See what time of day planes typically take off from San Francisco towards Seattle.
Afternoon Noon to 6 PM 57% of SFO to SEA departures
Morning 6 AM to noon 31% of SFO to SEA departures
Evening 6 PM to midnight 10% of SFO to SEA departures
Early morning Midnight to 6 AM 2% of SFO to SEA departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from San Francisco to Seattle
See how many times per day planes take to the skies headed from San Francisco to Seattle.
Sunday
33 daily flights
Monday
49 daily flights
Tuesday
51 daily flights
Wednesday
54 daily flights
Thursday
40 daily flights
Friday
42 daily flights
Saturday
16 daily flights
Home North America USA Washington Seattle Cheap flights from San Francisco to Seattle