Cheap Flights from Washington to San Francisco

Cheapest flights from Washington to San Francisco

Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Washington to San Francisco. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.

Cheapest one way flight

$134

Frontier Airlines

1 layover

9h 50m

10/12/2026

The cheapest one-way flight from Washington to San Francisco departs on 10/12/2026, is operated by Frontier Airlines and costs $134

Cheapest round trip flight

$282

Frontier Airlines

1 layover

16h 47m

09/30/2026

The cheapest roundtrip flight from Washington to San Francisco departs on 09/30/2026, is operated by Frontier Airlines and costs $282

The fastest flight

5h 45m

Fastest flight from Washington to San Francisco takes 5h 45m

Direct flights

Every day

There are direct flights on this route 7 days a week: Su, Mo, Tu, We, Th, Fr, and Sa

Earliest flight

6:00 AM

Latest flight

10:21 PM

Average flight duration

5h 44m

Direct flights count

75

Distance

3918km

Timezone difference

3h

The distance between Washington and San Francisco is 3918km (2429 miles). The average flight duration is 5h 44m. There are 75 direct flights from Washington to San Francisco. The time difference between Washington and San Francisco is 3h. Flights from Washington begin at 6:00 AM. The latest flight from Washington departs at 10:21 PM

Remember that on average the ideal time to book flights is 2 months before departure!

Airfare from Washington to San Francisco by month

The cost of a one-way flight from Washington to San Francisco ranges from $112 (September 2026) to $220 (May 2027). On average, the ticket price is about $153–$164.

September 2026

Lowest price

on average:

$112

May 2027

Highest price

on average:

$220

Avg Price

Price dynamics

Ticket prices for Washington — San Francisco follow a predictable curve: rise, peak, and decline. This typical seasonal pattern lets you plan your purchase to avoid overpaying.

Cheaper and more expensive periods

Prices rise from September 2026 to May 2027 (+97%), then decline from August 2026 to September 2026 (5%). The cheapest tickets are in August 2026–September 2026 (averaging $114), while the priciest are in December 2026–May 2027 ($192).

Best time to buy

For savings, plan your flight for August 2026–September 2026 — you could save up to 40%. Try to avoid December 2026–May 2027 when possible: prices are at their highest then.

Price predictability

Price spread on this route is 28.5%. Costs depend heavily on the season, so flexibility in choosing your departure month is especially valuable here.

Airlines operating on route

More than 4 airlines operate flights from Washington to San Francisco, including United Airlines, Alaska Airlines, Frontier Airlines, and Southwest Airlines. This is a popular route, so passengers can choose tickets based on budget and preferences. Ticket prices start from $134, and our service lets you instantly compare all options. The variety of offers simplifies planning: you can choose budget fares or more comfortable options with baggage included or extra services. We help you find the best deals so your trip is cost-efficient.

starting at $174

starting at $158

starting at $134

starting at $158

Non-stop flights from Washington to San Francisco

A non-stop flight is the most convenient and comfortable way to fly from Washington to San Francisco, despite the fact that sometimes flights with transfers can cost significantly less.

Washington — San Francisco

WAS — SFO

09/20/2026

Departure

Direct flight

UA367

starting at $259

Washington — San Francisco

WAS — SFO

10/12/2026

Departure

Direct flight

UA2832

starting at $389

Washington — San Francisco

WAS — SFO

01/05/2027

Departure

Direct flight

AS007

starting at $314

Washington — San Francisco

WAS — SFO

09/01/2026

Departure

Direct flight

UA1147

starting at $371

Washington — San Francisco

WAS — SFO

09/09/2026

Departure

Direct flight

UA368

starting at $495

Washington — San Francisco

WAS — SFO

09/10/2026

Departure

Direct flight

UA1434

starting at $437

Washington — San Francisco

WAS — SFO

09/11/2026

Departure

Direct flight

UA369

starting at $445

Washington — San Francisco

WAS — SFO

10/03/2026

Departure

Direct flight

UA1773

starting at $283

Baltimore — San Francisco

BWI — SFO

10/06/2026

Departure

Direct flight

UA2192

starting at $202

Washington — San Francisco

WAS — SFO

04/26/2027

Departure

Direct flight

UA1434

starting at $510

Schedule of direct flights from Washington to San Francisco

A few airlines fly the Washington — San Francisco route, but only one operates daily: United Airlines flies every day. Alaska Airlines only flies on Wednesday.

Alaska Airlines

starting at $295

United Airlines

Every day

starting at $386

Washington airports overview

Ronald Reagan National Airport

•

DCA

5km

Convenient for downtown Washington, D.C. and the National Mall, offering primarily domestic and short-haul flights with direct Metro access and quick transfers across the Potomac.

Washington Dulles International Airport

•

IAD

37km

•

San Francisco airports overview

San Francisco International Airport

•

SFO

18km

•

Frequently asked questions (FAQ)

Answers to questions about the route that travelers are most interested in.

What is the cheapest price for flights from Washington to San Francisco?

The cheapest flight ticket from Washington to San Francisco according to data for the last 48 hours costs $134

When is the best time to buy air tickets on the route Washington — San Francisco?

Often the best time to buy tickets from Washington to San Francisco is 2 months before departure.

When is the cheapest time of year to fly from Washington to San Francisco?

Based on statistics over the past years, the lowest prices for flights from Washington to San Francisco can be found flying in these months: September, August, December.

How long does it take to fly from Washington to San Francisco?

The fastest flights from Washington to San Francisco start from 5 hours 45 minutes in the air.

Which airline can fly direct from Washington to San Francisco?

The following airlines operate direct flights on the route Washington — San Francisco: United Airlines, Alaska Airlines

Special offers and sales on air tickets from Washington to San Francisco

We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.

We couldn't find any special offers for flights from Washington to San Francisco

Alternative routes

Baltimore ➜ San Francisco•Charlottesville ➜ San Francisco•Hagerstown ➜ San Francisco•Lancaster ➜ San Francisco•Philadelphia ➜ San Francisco•Richmond ➜ San Francisco•Washington ➜ Concord•Washington ➜ Berkeley•Washington ➜ Modesto•Washington ➜ Sacramento•Washington ➜ Stockton•Washington ➜ San Jose•Washington ➜ Santa Rosa

•••••••••••••••••••

Cheapest one way flight

$134

Frontier Airlines

1 layover

9h 50m

10/12/2026

The cheapest one-way flight from Washington to San Francisco departs on 10/12/2026, is operated by Frontier Airlines and costs $134

Cheapest round trip flight

$282

Frontier Airlines

1 layover

16h 47m

09/30/2026

The cheapest roundtrip flight from Washington to San Francisco departs on 09/30/2026, is operated by Frontier Airlines and costs $282

The fastest flight