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

Southwest, United Airlines, and Delta 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 63% 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 March 2026.

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.

$69 Cheap Flights from San Francisco to Washington in 2026

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

119 flights are operational daily from San Francisco to State of Washington as of March 2026. The most popular departure time for this route is 6:00PM, with 39% of flights per day taking off in the evening.

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 839 per week as of March 2026. The most frequent departure day is Sun, with 19% of weekly flights leaving on this day.

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Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:59 pm - 10:18 pm

SFO

SEA

2h 19mnonstop

8:05 pm - 10:28 pm

SEA

SFO

2h 23mnonstop

$130Alaska Airlines

Sat, May 2 - Sat, May 9

7:59 pm - 10:18 pm

SFO

SEA

2h 19mnonstop

7:04 pm - 9:23 pm

SEA

SFO

2h 19mnonstop

$131Alaska Airlines

Sat, May 2 - Sat, May 9

4:12 pm - 6:35 pm

SFO

SEA

2h 23mnonstop

11:35 am - 1:50 pm

SEA

SFO

2h 15mnonstop

$137United Airlines

Sat, Apr 25 - Wed, Apr 29

7:10 pm - 9:21 pm

SFO

PAE

2h 11mnonstop

7:20 am - 9:29 am

PAE

SFO

2h 09mnonstop

$137Alaska Airlines

Tue, May 5 - Wed, May 6

8:58 pm - 11:27 pm

SFO

SEA

2h 29mnonstop

7:37 pm - 9:50 pm

SEA

SFO

2h 13mnonstop

$145United Airlines

Thu, Apr 23 - Sat, Apr 25

5:59 am - 8:19 am

SFO

SEA

2h 20mnonstop

1:45 pm - 7:56 pm

SEA

SFO

6h 11m

1 stop

$147Delta

Thu, Apr 16 - Thu, Apr 23

8:00 am - 9:50 am

SFO

PDX

1h 50mnonstop

9:35 pm - 11:29 pm

PDX

SFO

1h 54mnonstop

$166Hawaiian Airlines

Thu, Apr 9 - Mon, Apr 13

8:00 am - 9:50 am

SFO

PDX

1h 50mnonstop

7:05 am - 9:03 am

PDX

SFO

1h 58mnonstop

$169Hawaiian Airlines

Thu, Apr 9 - Mon, Apr 13

2:47 pm - 8:59 am

SFO

PDX

18h 12m

1 stop

12:27 pm - 9:13 am

PDX

SFO

20h 46m

1 stop

$171Frontier

Wed, Apr 15 - Sat, Apr 18

5:59 am - 10:45 am

SFO

GEG

4h 46m

1 stop

6:15 am - 9:22 am

GEG

SFO

27h 07m

1 stop

$236Delta

Sat, May 2 - Mon, May 4

Alaska Airlines flights from San Francisco to State of Washington

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

Alaska Airlines

May 2

SFO7:59 pmSan Francisco

2h 19m

SEA10:18 pmSeattle/Tacoma Intl

May 9

SEA8:05 pmSeattle/Tacoma Intl

2h 23m

SFO10:28 pmSan Francisco

$130

Alaska Airlines

May 2

SFO7:59 pmSan Francisco

2h 19m

SEA10:18 pmSeattle/Tacoma Intl

May 9

SEA7:04 pmSeattle/Tacoma Intl

2h 19m

SFO9:23 pmSan Francisco

$131

Alaska Airlines

Apr 28

SFO2:00 pmSan Francisco

2h 17m

SEA4:17 pmSeattle/Tacoma Intl

Apr 30

SEA7:10 amSeattle/Tacoma Intl

2h 17m

SFO9:27 amSan Francisco

$137

Delta flights from San Francisco to State of Washington

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

Delta

May 8

SFO6:20 pmSan Francisco

5h 35m

1 stop

SEA11:55 pmSeattle/Tacoma Intl

May 10

SEA7:15 amSeattle/Tacoma Intl

2h 19m

SFO9:34 amSan Francisco

$147

Delta

Apr 13

SFO5:59 amSan Francisco

2h 20m

SEA8:19 amSeattle/Tacoma Intl

Apr 17

SEA4:36 pmSeattle/Tacoma Intl

7h 23m

1 stop

SFO11:59 pmSan Francisco

$157

Delta

Apr 25

SFO2:57 pmSan Francisco

2h 19m

SEA5:16 pmSeattle/Tacoma Intl

May 6

SEA9:20 pmSeattle/Tacoma Intl

2h 17m

SFO11:37 pmSan Francisco

$167

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

Cheapest round-trip

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Sat 5/2

7:59 pm-10:18 pm

Nonstop2h 19m

Seattle/Tacoma Intl

Sat 5/9

8:05 pm-10:28 pm

Nonstop2h 23m

$130

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Sat 5/2

7:59 pm-10:18 pm

Nonstop2h 19m

Seattle/Tacoma Intl

Sat 5/9

7:04 pm-9:23 pm

Nonstop2h 19m

$131

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Sat 4/25

4:12 pm-6:35 pm

Nonstop2h 23m

Seattle/Tacoma Intl

Wed 4/29

11:35 am-1:50 pm

Nonstop2h 15m

$137

San FranciscoEverett

SFO - PAE

SFOPAE

San Francisco

Tue 5/5

7:10 pm-9:21 pm

Nonstop2h 11m

Everett Paine Field

Wed 5/6

7:20 am-9:29 am

Nonstop2h 09m

$137

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 4/23

8:58 pm-11:27 pm

Nonstop2h 29m

Seattle/Tacoma Intl

Sat 4/25

7:37 pm-9:50 pm

Nonstop2h 13m

$145

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 4/16

5:59 am-8:19 am

Nonstop2h 20m

Seattle/Tacoma Intl

Thu 4/23

1:45 pm-7:56 pm

1 stop6h 11m

$147

Quickest round-trip

San FranciscoPortland

SFO - PDX

SFOPDX

San Francisco

Thu 4/9

8:00 am-9:50 am

Nonstop1h 50m

Portland

Mon 4/13

9:35 pm-11:29 pm

Nonstop1h 54m

$166

San FranciscoPortland

SFO - PDX

SFOPDX

San Francisco

Thu 4/9

8:00 am-9:50 am

Nonstop1h 50m

Portland

Mon 4/13

7:05 am-9:03 am

Nonstop1h 58m

$169

San FranciscoPortland

SFO - PDX

SFOPDX

San Francisco

Wed 4/15

2:47 pm-8:59 am

1 stop18h 12m

Portland

Sat 4/18

12:27 pm-9:13 am

1 stop20h 46m

$171

San FranciscoSpokane

SFO - GEG

SFOGEG

San Francisco

Sat 5/2

5:59 am-10:45 am

1 stop4h 46m

Spokane

Mon 5/4

6:15 am-9:22 am

1 stop27h 07m

$236

Flights are sorted by cheapest round-trip flights first.

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 February is, on average, the cheapest month to fly to State of Washington from San Francisco, with most prices found around $212. If you aren’t able to travel to State of Washington during the month of February, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $236.

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 $312. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from San Francisco to State of Washington for around $431.

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 $303. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $368 on average. Flights to State of Washington from San Francisco at noon 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 Spokane 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 $259 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 $192 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.

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	$153
Fastest flight time	1h 44m
Direct flights	Every day
Airports in State of Washington	96 airports

The best one-way flight to State of Washington from San Francisco in the past 72 hours is $153. The best round-trip flight deal from San Francisco to State of Washington found on momondo in the last 72 hours is $237.

The fastest flight from San Francisco to State of Washington takes 1h 44m

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

There are 96 airports in State of Washington. From San Francisco there are direct flights to 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 March 2026.
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 16.64% of the total bookings. Other popular models include Boeing 737-800 with 13.94%, Boeing 737 MAX 8 with 8.93%, and Airbus A319 with 8.35%.

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
Hawaiian Airlines	PriceFrom $78	Free Cancellation	Rating 7.8 2,840 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $89	Free Cancellation	Rating 7.9 8,319 reviews	Search Delta flights
Allegiant Air	PriceFrom $90	Free Cancellation	Rating 7.3 710 reviews	Search Allegiant Air flights
Frontier	PriceFrom $101	Free Cancellation	Rating 5.7 3,018 reviews	Search Frontier flights
United Airlines	PriceFrom $117	Free Cancellation	Rating 7.4 9,460 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $132	Free Cancellation	Rating 7.9 12,098 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $262	Free Cancellation	Rating 7.1 11,489 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

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Popular cities in Washington

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Flights to Las Vegasfrom $57

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Flights to Bostonfrom $70

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Flights to Dallasfrom $60

Flights to Seattlefrom $71

Cheap flights from San Francisco to Washington from $69

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 4/21. 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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Alaska Airlines flights from San Francisco to State of Washington

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

Delta flights from San Francisco to State of Washington

Our best Delta 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.

See travel insights to Washington from

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

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?

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?

What is the cheapest airline that flies 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?

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

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

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?

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

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