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

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The best prices from San Francisco to Seattle 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
46.4 - 77 °F
SEA
Rainfall
0.7 - 6.5 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

One-way from

$49

One-way flight from San Francisco to Seattle

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?

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Seattle. Check prices with Cheapflights to find a great deal for your trip.

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

Users have found that booking a flight from San Francisco to Seattle at least 28 days early can save you up to 71% on average compared to booking a flight this week. If booking 28 days before your flight isn’t an option for you, users have found flights from San Francisco to Seattle for as little as $123 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $189 for flights departing within the next 3 days.

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

Our data shows that April tends to be the cheapest month to fly to Seattle from San Francisco. Users have commonly found prices around $115 for the month, but tickets can be as low as $36. Due to multiple factors, prepare for potentially higher prices in December.

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

Unlike in the afternoon, when flights are generally more expensive, you can save up to 8% on flights from San Francisco to Seattle by exploring options for tickets in the morning.

Cheap flights from San Francisco to Seattle in June, July 2021

The best prices found for SFO to SEA flights for June, July
24 Jul - 11 Aug
$88pp
SFO
San Francisco
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco
9 Jul - 24 Jul
$94pp
SFO
San Francisco
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco
13 Jul - 14 Jul
$99pp
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
24 Jul - 11 Aug
$88pp
SFO
San Francisco
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco
20 Aug - 11 Sep
$89pp
SFO
San Francisco
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco
6 Sep - 10 Sep
$91pp
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
24 Jul - 11 Aug
$88pp
SFO
San Francisco
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco
20 Aug - 11 Sep
$89pp
SFO
San Francisco
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco
6 Sep - 10 Sep
$91pp
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
24 Jun - 30 Jun
$162pp
SFO
San Francisco
Frontier
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
SFO
San Francisco
29 Jun - 8 Jul
$177pp
SFO
San Francisco
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco
29 Jun - 10 Jul
$178pp
SFO
San Francisco
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SFO
San Francisco

One-way flights to Seattle from San Francisco

The cheapest one-way flights from San Francisco to Seattle
4:14 pm - 6:37 pm
Delta
Nonstop
2h 23m
SFO - SEA
Delta
$49
Delta
5:39 am - 7:41 am
Multiple Airlines
2 Stops
26h 02m
SFO - SEA
Multiple Airlines
$76
Kiwi.com
4:30 am - 9:20 am
United Airlines
1 Stop
4h 50m
SFO - SEA
United Airlines
$88
United

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

Are flight prices decreasing from San Francisco to Seattle 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 San Francisco and Seattle 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 San Francisco to Seattle/Tacoma Intl to control the spread of COVID-19?

Airlines globally have implemented additional safety measures to accommodate you. Alaska Airlines is one of them. Airline carriers are regularly disinfecting and sanitizing their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially distanced seating (for a limited time) will work towards keeping travelers safer while flying from San Francisco to Seattle/Tacoma Intl. Policies will vary by airline.

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.

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 32 daily flights to Seattle from 10 different airlines. 1h 56m is how long a flight from San Francisco to Seattle/Tacoma Intl will take if you book a nonstop flight.

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 $88, but on average you can expect to pay $102.

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 $102.

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?

Days when nonstop flights are available for this flight are: Sunday, Monday, Tuesday, Wednesday.

How popular is this flight route?

The San Francisco to Seattle/Tacoma Intl flight path was viewed by 346 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

Per day, 4 flights depart from San Francisco to Seattle/Tacoma Intl on average.
Morning (6am - Noon) - 50% of flight departures
Afternoon (Noon - 6pm) - 25% of flight departures
Evening (6pm - Midnight) - 25% of flight departures

Does it rain more in San Francisco or Seattle?

San Francisco will have less rainfall in 2 compared to Seattle over the next 3 days.

Is San Francisco weather warmer or cooler than Seattle?

Temperatures around the 77 °F's can be experienced in July. The weather in Seattle is hotter than in San Francisco. Plan for potential changes in flight availability as peak weather approaches in this location.

How long is the flight from San Francisco to Seattle?

Departing from San Francisco to Seattle will take you 2h 04m. San Francisco and Seattle are separated by a distance of 683 mi. Most flights are nonstop.

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

According to our current data, Alaska Airlines ($88), and United Airlines ($124) offers the cheapest pricing from San Francisco to Seattle. Users have found that Alaska Airlines is 46% cheaper than the other options available to this destination.

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

For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $28. Users have also found prices from $49 and $71 on Alaska Airlines and Delta, respectively.

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
2h 10m
Average temperature for June in Seattle
71.6 °F
Avg rainfall for June in Seattle
1.6 ″

Airports servicing San Francisco

Airports servicing Seattle

Top 8 airlines flying from San Francisco to Seattle

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
Alaska Airlines
$68 $207 No cancel fee 75%
United Airlines
$68 $211 No cancel fee 69%
Southwest
$72 $233 No cancel fee 63%
Spirit Airlines
$104 $248 No cancel fee 65%
JetBlue
$149 $307 No cancel fee 62%
American Airlines
$113 $333 No cancel fee 71%
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 60% of SFO to SEA departures
Morning 6 AM to noon 24% of SFO to SEA departures
Evening 6 PM to midnight 12% of SFO to SEA departures
Early morning Midnight to 6 AM 4% 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
29 daily flights
Monday
30 daily flights
Tuesday
29 daily flights
Wednesday
33 daily flights
Thursday
27 daily flights
Friday
39 daily flights
Saturday
42 daily flights
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