Cheap flights from San Francisco (SFO) to Washington from $49

This is the cheapest one-way flight price, found on 3/29. Prices may vary by date and flight preferences.
SFO — SEA
Apr 4 — Apr 111

Cheap flights from San Francisco to Washington in March, April 2023

The best prices found for SFO to Washington flights for March, April

San Francisco to Washington 2023 flight deals

Cheap flights to Washington from San Francisco found for this year

Cheap Frontier flights from San Francisco to Washington

Cheap Alaska Airlines flights from San Francisco to Washington

Non-stop flights to Washington from San Francisco

Save time with San Francisco to Washington direct flight deals

Last minute flights from San Francisco to Washington

Late deals on return flights to Washington from San Francisco, departing today and this week

One-way flights to Washington from San Francisco

The cheapest one-way flights from San Francisco to Washington

Find flights from San Francisco to Washington within your budget

Use the slider to find flights from San Francisco to Washington that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$104 - $178

Route

Depart

Return

Price

San FranciscoSeattle/Tacoma Intl

SFO - SEA

SFOSEA

San Francisco

2023-05-09

1 stop9h 25m

Seattle/Tacoma Intl

2023-05-10

1 stop10h 57m

San FranciscoSeattle/Tacoma Intl

SFO - SEA

SFOSEA

San Francisco

2023-05-10

1 stop9h 35m

Seattle/Tacoma Intl

2023-05-17

1 stop12h 47m

San FranciscoSeattle/Tacoma Intl

SFO - SEA

SFOSEA

San Francisco

2023-04-11

1 stop6h 46m

Seattle/Tacoma Intl

2023-04-12

1 stop10h 23m

San FranciscoSeattle/Tacoma Intl

SFO - SEA

SFOSEA

San Francisco

2023-04-25

1 stop5h 49m

Seattle/Tacoma Intl

2023-05-02

1 stop9h 27m

San FranciscoSeattle/Tacoma Intl

SFO - SEA

SFOSEA

San Francisco

2023-04-19

1 stop7h 16m

Seattle/Tacoma Intl

2023-04-25

1 stop10h 13m

San FranciscoSeattle/Tacoma Intl

SFO - SEA

SFOSEA

San Francisco

2023-05-10

Nonstop2h 14m

Seattle/Tacoma Intl

2023-05-10

Nonstop2h 08m

San FranciscoSeattle/Tacoma Intl

SFO - SEA

SFOSEA

San Francisco

2023-04-20

Nonstop2h 06m

Seattle/Tacoma Intl

2023-04-25

Nonstop2h 10m

San FranciscoSeattle/Tacoma Intl

SFO - SEA

SFOSEA

San Francisco

2023-04-19

Nonstop2h 17m

Seattle/Tacoma Intl

2023-04-28

Nonstop2h 14m

San FranciscoSpokane

SFO - GEG

SFOGEG

San Francisco

2023-04-25

Nonstop2h 11m

Spokane

2023-04-26

Nonstop2h 21m

Flights are sorted by cheapest first

Deals found on 3/29

Reviews of Airlines Servicing Washington

Alaska Airlines
8.0
Very good
1,369 reviews

Entertainment

7.1

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.3

Food

7.2

Reviews

1 / 10

We were rebooked from our original 7 am flight to a 9:25 am flight. We tried but could not get seat assignments upon online check-in. At the airport, the security officer almost did not let us through to the gate, since our boarding pass had no QR code and said "seat assignment at the gate." When we made it to the gate and asked for seat assignments, the gate agents kept telling us that they were not authorized to assign us seats and that we would be assigned seats 30 mins prior to departure. They referred us to the service center that would not help either. Since they also said that the flight was full, we were left in doubt if we were going to make it onto this flight. Finally, after everybody else's seats had been assigned, about 15 mins to departure they assigned us two separate seats. We could not sit together. Whoever designed seat assignment and boarding procedures at Alaska Airlines must have zero understanding of how to make such a process work smoothly and efficiently. We'll think twice before booking another flight with Alaska!

Alaska Airlines
8.0
Very good
1,369 reviews
Alaska Airlines
8.0
Very good
1,369 reviews

Entertainment

7.1

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.3

Food

7.2

Reviews

1 / 10

We were rebooked from our original 7 am flight to a 9:25 am flight. We tried but could not get seat assignments upon online check-in. At the airport, the security officer almost did not let us through to the gate, since our boarding pass had no QR code and said "seat assignment at the gate." When we made it to the gate and asked for seat assignments, the gate agents kept telling us that they were not authorized to assign us seats and that we would be assigned seats 30 mins prior to departure. They referred us to the service center that would not help either. Since they also said that the flight was full, we were left in doubt if we were going to make it onto this flight. Finally, after everybody else's seats had been assigned, about 15 mins to departure they assigned us two separate seats. We could not sit together. Whoever designed seat assignment and boarding procedures at Alaska Airlines must have zero understanding of how to make such a process work smoothly and efficiently. We'll think twice before booking another flight with Alaska!

Delta
8.0
Very good
2,335 reviews
Alaska Airlines
8.0
Very good
1,369 reviews

Entertainment

7.1

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.3

Food

7.2

Reviews

1 / 10

We were rebooked from our original 7 am flight to a 9:25 am flight. We tried but could not get seat assignments upon online check-in. At the airport, the security officer almost did not let us through to the gate, since our boarding pass had no QR code and said "seat assignment at the gate." When we made it to the gate and asked for seat assignments, the gate agents kept telling us that they were not authorized to assign us seats and that we would be assigned seats 30 mins prior to departure. They referred us to the service center that would not help either. Since they also said that the flight was full, we were left in doubt if we were going to make it onto this flight. Finally, after everybody else's seats had been assigned, about 15 mins to departure they assigned us two separate seats. We could not sit together. Whoever designed seat assignment and boarding procedures at Alaska Airlines must have zero understanding of how to make such a process work smoothly and efficiently. We'll think twice before booking another flight with Alaska!

United Airlines
7.6
Good
1,427 reviews
Alaska Airlines
8.0
Very good
1,369 reviews

Entertainment

7.1

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.3

Food

7.2

Reviews

1 / 10

We were rebooked from our original 7 am flight to a 9:25 am flight. We tried but could not get seat assignments upon online check-in. At the airport, the security officer almost did not let us through to the gate, since our boarding pass had no QR code and said "seat assignment at the gate." When we made it to the gate and asked for seat assignments, the gate agents kept telling us that they were not authorized to assign us seats and that we would be assigned seats 30 mins prior to departure. They referred us to the service center that would not help either. Since they also said that the flight was full, we were left in doubt if we were going to make it onto this flight. Finally, after everybody else's seats had been assigned, about 15 mins to departure they assigned us two separate seats. We could not sit together. Whoever designed seat assignment and boarding procedures at Alaska Airlines must have zero understanding of how to make such a process work smoothly and efficiently. We'll think twice before booking another flight with Alaska!

American Airlines
7.4
Good
1,803 reviews
Alaska Airlines
8.0
Very good
1,369 reviews

Entertainment

7.1

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.3

Food

7.2

Reviews

1 / 10

We were rebooked from our original 7 am flight to a 9:25 am flight. We tried but could not get seat assignments upon online check-in. At the airport, the security officer almost did not let us through to the gate, since our boarding pass had no QR code and said "seat assignment at the gate." When we made it to the gate and asked for seat assignments, the gate agents kept telling us that they were not authorized to assign us seats and that we would be assigned seats 30 mins prior to departure. They referred us to the service center that would not help either. Since they also said that the flight was full, we were left in doubt if we were going to make it onto this flight. Finally, after everybody else's seats had been assigned, about 15 mins to departure they assigned us two separate seats. We could not sit together. Whoever designed seat assignment and boarding procedures at Alaska Airlines must have zero understanding of how to make such a process work smoothly and efficiently. We'll think twice before booking another flight with Alaska!

Frontier
6.1
Okay
544 reviews
Alaska Airlines
8.0
Very good
1,369 reviews

Entertainment

7.1

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.3

Food

7.2

Reviews

1 / 10

We were rebooked from our original 7 am flight to a 9:25 am flight. We tried but could not get seat assignments upon online check-in. At the airport, the security officer almost did not let us through to the gate, since our boarding pass had no QR code and said "seat assignment at the gate." When we made it to the gate and asked for seat assignments, the gate agents kept telling us that they were not authorized to assign us seats and that we would be assigned seats 30 mins prior to departure. They referred us to the service center that would not help either. Since they also said that the flight was full, we were left in doubt if we were going to make it onto this flight. Finally, after everybody else's seats had been assigned, about 15 mins to departure they assigned us two separate seats. We could not sit together. Whoever designed seat assignment and boarding procedures at Alaska Airlines must have zero understanding of how to make such a process work smoothly and efficiently. We'll think twice before booking another flight with Alaska!

Related info for your journey

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

Destination points for flights from San Francisco to Washington

Select to see more specific information for flights from San Francisco to all places in Washington

Top 6 airlines flying from San Francisco to Washington

The chart below displays the airlines Cheapflights users traveling from San Francisco to Washington choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Allegiant AirCheapest$77Average$164FlexibilityNo cancel feeOn-time88%COVID-19 safety
Search Allegiant Air flights
DeltaCheapest$89Average$258FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
United AirlinesCheapest$89Average$310FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
Alaska AirlinesCheapest$94Average$333FlexibilityNo cancel feeOn-time75%COVID-19 safety
Search Alaska Airlines flights
FrontierCheapest$100Average$166FlexibilityNo cancel feeOn-time62%COVID-19 safety
Search Frontier flights
American AirlinesCheapest$201Average$402FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights

Hourly flight availability from San Francisco to Washington

See what time of day planes typically take off from San Francisco to Washington
8%of flight departuresEarly morningMidnight to 6 am
35%of flight departuresMorning6 am to noon
35%of flight departuresAfternoonNoon to 6 pm
22%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.