What is the cheapest airline that flies from San Francisco to Washington?

Frontier, Alaska Airlines, and United Airlines are the most popular carriers operating from San Francisco to Washington

What airlines fly to State of Washington?

Alaska Airlines, United Airlines and Delta are the top three most popular airlines that fly to State of Washington from San Francisco according to our data. Alaska Airlines is the first choice among our users, with 62% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 9 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from San Francisco Airport to Washington?

Prices for flights from San Francisco Airport to Washington are updated daily.

How many operators does momondo search for flights from San Francisco Airport to Washington?

There are 7 operators available for flights from San Francisco Airport to Washington as of November 2025.

How old do you have to be to fly from San Francisco Airport to Washington?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Francisco Airport to Washington.

What documentation or ID do you need to fly to Washington?

The travel and health documents you'll need for your trip to Washington may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$55 Cheap Flights from San Francisco to Washington in 2025/26

Q: How many flights depart from San Francisco to State of Washington on average per week?

The number of flights available between San Francisco and State of Washington is 854 per week as of November 2025. The most frequent departure day is Mon, with 22% of weekly flights leaving on this day.

Q: How many flights depart from San Francisco to State of Washington on average per day?

122 flights are operational daily from San Francisco to State of Washington as of November 2025. The most popular departure time for this route is 9:00PM, with 36% of flights per day taking off at noon.

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Cheap round-trip flights

Enter your travel dates to find the best prices.

9:04 pm - 11:22 pmSFO-PAE

2h 18mnonstop

8:20 am - 10:37 amPAE-SFO

2h 17mnonstop

$116Alaska Airlines

Find Deal

dom., feb. 1 - mié., feb. 4

6:54 pm - 9:01 pmSFO-PAE

2h 07mnonstop

2:30 pm - 4:41 pmPAE-SFO

2h 11mnonstop

$117Alaska Airlines

Find Deal

mar., mar. 3 - mié., mar. 4

8:55 pm - 8:18 amSFO-SEA

11h 23m1 stop

7:17 pm - 12:11 amSEA-SFO

4h 54m1 stop

$129Frontier

Find Deal

sáb., nov. 15 - lun., nov. 17

8:43 am - 9:56 amSFO-SEA

25h 13m1 stop

12:48 pm - 7:53 amSEA-SFO

19h 05m1 stop

$134Frontier

Find Deal

sáb., dic. 6 - dom., dic. 7

6:00 am - 11:50 amSFO-PDX

5h 50m1 stop

10:05 am - 4:12 pmPDX-SFO

6h 07m1 stop

$137Delta

Find Deal

mié., dic. 3 - mié., dic. 10

4:42 pm - 6:59 pmSFO-SEA

2h 17mnonstop

8:31 pm - 10:45 pmSEA-SFO

2h 14mnonstop

$141Hawaiian Airlines

Find Deal

sáb., dic. 6 - dom., dic. 7

4:42 pm - 6:59 pmSFO-SEA

2h 17mnonstop

8:45 am - 11:00 amSEA-SFO

2h 15mnonstop

$142Hawaiian Airlines

Find Deal

sáb., dic. 6 - dom., dic. 7

7:37 pm - 10:00 pmSFO-SEA

2h 23mnonstop

7:10 am - 9:33 amSEA-SFO

2h 23mnonstop

$148Delta

Find Deal

sáb., dic. 6 - dom., dic. 7

10:35 pm - 12:50 amSFO-SEA

2h 15mnonstop

7:00 am - 9:12 amSEA-SFO

2h 12mnonstop

$157United Airlines

Find Deal

vie., dic. 12 - dom., dic. 14

4:10 pm - 6:28 pmSFO-SEA

2h 18mnonstop

9:25 am - 11:43 amSEA-SFO

2h 18mnonstop

$161United Airlines

Find Deal

sáb., ene. 17 - lun., ene. 19

American Airlines flights from San Francisco to State of Washington

Our best American Airlines deals on San Francisco to State of Washington flight tickets

American Airlines

Dec 10

SFO12:20 pmSan Francisco

7h 58m

1 stop

SEA8:18 pmSeattle/Tacoma Intl

Dec 17

SEA6:05 amSeattle/Tacoma Intl

7h 28m

1 stop

SFO1:33 pmSan Francisco

$158

Find similar

American Airlines

Jan 22

SFO6:00 amSan Francisco

7h 49m

1 stop

SEA1:49 pmSeattle/Tacoma Intl

Jan 25

SEA2:29 pmSeattle/Tacoma Intl

8h 11m

1 stop

SFO10:40 pmSan Francisco

$159

Find similar

American Airlines

Nov 8

SFO1:10 pmSan Francisco

6h 39m

1 stop

PDX7:49 pmPortland

Dec 6

PDX11:45 amPortland

7h 29m

1 stop

SFO7:14 pmSan Francisco

$306

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Frontier flights from San Francisco to State of Washington

Our best Frontier deals on San Francisco to State of Washington flight tickets

Frontier

Nov 15

SFO8:55 pmSan Francisco

11h 23m

1 stop

SEA8:18 amSeattle/Tacoma Intl

Nov 17

SEA7:17 pmSeattle/Tacoma Intl

4h 54m

1 stop

SFO12:11 amSan Francisco

$129

Find similar

Frontier

Dec 6

SFO8:43 amSan Francisco

25h 13m

1 stop

SEA9:56 amSeattle/Tacoma Intl

Dec 7

SEA12:48 pmSeattle/Tacoma Intl

19h 05m

1 stop

SFO7:53 amSan Francisco

$134

Find similar

Frontier

Feb 19

SFO3:46 pmSan Francisco

17h 48m

1 stop

SEA9:34 amSeattle/Tacoma Intl

Feb 22

SEA1:09 pmSeattle/Tacoma Intl

18h 44m

1 stop

SFO7:53 amSan Francisco

$135

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momondo Fare Finder

Use the filters below to find and compare flights from San Francisco to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoEverett

SFO - PAE

SFOPAE

San Francisco

dom. 2/1

9:04 pm-11:22 pm

Nonstop2h 18m

Everett Paine Field

mié. 2/4

8:20 am-10:37 am

Nonstop2h 17m

$116

San FranciscoEverett

SFO - PAE

SFOPAE

San Francisco

mar. 3/3

6:54 pm-9:01 pm

Nonstop2h 07m

Everett Paine Field

mié. 3/4

2:30 pm-4:41 pm

Nonstop2h 11m

$117

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

sáb. 11/15

8:55 pm-8:18 am

1 stop11h 23m

Seattle/Tacoma Intl

lun. 11/17

7:17 pm-12:11 am

1 stop4h 54m

$129

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

sáb. 12/6

8:43 am-9:56 am

1 stop25h 13m

Seattle/Tacoma Intl

dom. 12/7

12:48 pm-7:53 am

1 stop19h 05m

$134

San FranciscoPortland

SFO - PDX

SFOPDX

San Francisco

mié. 12/3

6:00 am-11:50 am

1 stop5h 50m

Portland

mié. 12/10

10:05 am-4:12 pm

1 stop6h 07m

$137

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

sáb. 12/6

4:42 pm-6:59 pm

Nonstop2h 17m

Seattle/Tacoma Intl

dom. 12/7

8:31 pm-10:45 pm

Nonstop2h 14m

$141

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

sáb. 12/6

4:42 pm-6:59 pm

Nonstop2h 17m

Seattle/Tacoma Intl

dom. 12/7

8:45 am-11:00 am

Nonstop2h 15m

$142

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

sáb. 12/6

7:37 pm-10:00 pm

Nonstop2h 23m

Seattle/Tacoma Intl

dom. 12/7

7:10 am-9:33 am

Nonstop2h 23m

$148

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

vie. 12/12

10:35 pm-12:50 am

Nonstop2h 15m

Seattle/Tacoma Intl

dom. 12/14

7:00 am-9:12 am

Nonstop2h 12m

$157

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

sáb. 1/17

4:10 pm-6:28 pm

Nonstop2h 18m

Seattle/Tacoma Intl

lun. 1/19

9:25 am-11:43 am

Nonstop2h 18m

$161

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Francisco to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to State of Washington?

The month of January is, on average, the cheapest month to fly to State of Washington from San Francisco, with most prices found around $200. If you aren’t able to travel to State of Washington during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $207.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from San Francisco to State of Washington is on a Friday. Travelers who choose to depart for State of Washington on a Friday will often find tickets for as low as $301. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from San Francisco to State of Washington for around $417.

What is the cheapest time of day to depart on your flight to State of Washington?

The cheapest time of day to fly to State of Washington is in the afternoon when flights can be purchased for as low as $278. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $377 on average. Flights to State of Washington from San Francisco in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest San Francisco to Washington flight route?

Fly from San Francisco to Seattle/Tacoma Intl for the best San Francisco - Washington flight prices

How far in advance should I book a flight to State of Washington?

You are more likely to see cheaper flights to State of Washington from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $245 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from San Francisco for as low as $152 on momondo.

What cabin class options are available on San Francisco to Washington flights?

There are 4 cabin classes available to choose from on San Francisco to Washington flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Francisco to State of Washington flights?

No. A direct flight is the cheapest option for a flight between San Francisco to State of Washington.

Cheap San Francisco to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to State of Washington

Best Price Found	$143
Fastest flight time	1h 45m
Direct flights	Every day
Airports in State of Washington	1 airport

The best one-way flight to State of Washington from San Francisco in the past 72 hours is $143. The best round-trip flight deal from San Francisco to State of Washington found on momondo in the last 72 hours is $219.

The fastest flight from San Francisco to State of Washington takes 1h 45m

Direct flights go from San Francisco to State of Washington every day.

There is 1 airport near State of Washington: Portland (PDX)

Search flight deals

When did momondo last update prices for flights from San Francisco Airport to Washington?
Prices for flights from San Francisco Airport to Washington are updated daily.
How many operators does momondo search for flights from San Francisco Airport to Washington?
There are 7 operators available for flights from San Francisco Airport to Washington as of November 2025.
How old do you have to be to fly from San Francisco Airport to Washington?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Francisco Airport to Washington.
What documentation or ID do you need to fly to Washington?
The travel and health documents you'll need for your trip to Washington may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from San Francisco to State of Washington?
Based on momondo bookings for flights between San Francisco and State of Washington, the leading plane model is Boeing 737-800 Passenger/BBJ2 (winglets), making up 14.71% of the total bookings. Other popular models include Boeing 737-900 Passenger/BBJ3 (winglets) with 14.05%, Boeing 737 MAX 9 with 10.62%, and Boeing 737 MAX 8 with 8.96%.

Best airlines flying from San Francisco to State of Washington

Compare and see reviews for airlines that fly from San Francisco to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
Allegiant Air	PriceFrom $81	Free Cancellation	Rating 7.2 694 reviews	Search Allegiant Air flights
Frontier	PriceFrom $100	Free Cancellation	Rating 5.8 3,117 reviews	Search Frontier flights
Hawaiian Airlines	PriceFrom $105	Free Cancellation	Rating 7.8 2,799 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $111	Free Cancellation	Rating 7.9 8,001 reviews	Search Delta flights
United Airlines	PriceFrom $131	Free Cancellation	Rating 7.4 8,996 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $137	Free Cancellation	Rating 8.0 11,234 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $220	Free Cancellation	Rating 7.2 11,035 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Washington?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Francisco to Washington. momondo saves you time and could save you money on your trip.

Can I find flights from San Francisco to Washington with flexible booking policies on momondo?

Yes. All flights to Washington from San Francisco on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from San Francisco to Washington?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington from San Francisco.

I’m not ready to book a flight from San Francisco to Washington right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Washington, momondo offers a useful price alert feature which will track prices for flights to Washington from San Francisco and alert you when they change.

An easier way to manage your State of Washington trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Popular cities in Washington

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Cheap flights from San Francisco to Washington from $55

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Washington departing on 1/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

Filter for what you want

Filter for what you want

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Find the cheapest flights from San Francisco to Washington

Cheap round-trip flights

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Cheap last minute flights

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American Airlines flights from San Francisco to State of Washington

Our best American Airlines deals on San Francisco to State of Washington flight tickets

Frontier flights from San Francisco to State of Washington

Our best Frontier deals on San Francisco to State of Washington flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from San Francisco to Washington that are best for you.

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How to get the cheapest flight ticket from San Francisco to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to State of Washington?

What is the cheapest day to depart on your flight to State of Washington?

What is the cheapest time of day to depart on your flight to State of Washington?

What is the cheapest San Francisco to Washington flight route?

Fly from San Francisco to Seattle/Tacoma Intl for the best San Francisco - Washington flight prices

How far in advance should I book a flight to State of Washington?

What cabin class options are available on San Francisco to Washington flights?

There are 4 cabin classes available to choose from on San Francisco to Washington flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Francisco to State of Washington flights?

No. A direct flight is the cheapest option for a flight between San Francisco to State of Washington.

What is the cheapest airline that flies from San Francisco to Washington?

Frontier, Alaska Airlines, and United Airlines are the most popular carriers operating from San Francisco to Washington

What airlines fly to State of Washington?

How many flights depart from San Francisco to State of Washington on average per day?

122 flights are operational daily from San Francisco to State of Washington as of November 2025. The most popular departure time for this route is 9:00PM, with 36% of flights per day taking off at noon.

How many flights depart from San Francisco to State of Washington on average per week?

The number of flights available between San Francisco and State of Washington is 854 per week as of November 2025. The most frequent departure day is Mon, with 22% of weekly flights leaving on this day.

Cheap San Francisco to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to State of Washington

Best Price Found

Fastest flight time

Direct flights

Airports in State of Washington

When did momondo last update prices for flights from San Francisco Airport to Washington?

How many operators does momondo search for flights from San Francisco Airport to Washington?

How old do you have to be to fly from San Francisco Airport to Washington?

What documentation or ID do you need to fly to Washington?

What is the most popular plane model from San Francisco to State of Washington?

Best airlines flying from San Francisco to State of Washington

Compare and see reviews for airlines that fly from San Francisco to State of Washington with momondo

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Washington?

Can I find flights from San Francisco to Washington with flexible booking policies on momondo?

How can momondo help me find flights from San Francisco to Washington?

I’m not ready to book a flight from San Francisco to Washington right now. Can momondo alert me if prices change?

An easier way to manage your State of Washington trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Washington

Popular cities in Washington

Popular flights according to clicks in the last 7 days on momondo