Cheap flights from Washington, D.C. to San Francisco

WAS — SFO
24 Aug — 31 Aug1
1 adult

Cheapflights Tip: The best prices from Washington, D.C. to San Francisco are usually found in February or May, booked 23 days in advance, depart on a Monday or Wednesday and return on a Wednesday

Cheap flight deals from Washington, D.C. to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 August 2025.

Round-trip from

£197

One-way from

£91

Popular in

December

Cheapest in

February

Average price

£293

Good one-way deal

£110 or less
Delta
  • Delta
  • 22/9-23/9
  • 2 total stops
  • 15h 49m total
  • Washington, D.C. to San Francisco
Frontier
  • Frontier
  • 18/11
  • 2 total stops
  • 16h 40m total
  • Washington, D.C. to San Francisco
Highest demand for flights based on searches. 7% potential increase in price (£19 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
Average for round-trip flights in August 2025
Price to beat on a one-way flight from Washington, D.C. (WAS) to San Francisco.

Best time to book a flight from Washington, D.C. to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Washington, D.C. with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to San Francisco

How far ahead should I book a flight from Washington, D.C. to San Francisco?

Use this chart to determine the optimal time to book a return flight from Washington, D.C. to San Francisco. Price data was last updated on 8 August 2025.

Booking 23 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to San Francisco. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Washington, D.C. to San Francisco?

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to San Francisco (average of £538). Flying from Washington, D.C. to San Francisco in July is currently the most expensive (average of £803). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WAS to SFO?

Find hourly flight availability from Washington, D.C. to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 August 2025.

It’s typically best to fly out from Washington, D.C. to San Francisco at midday. Doing so could potentially save you 56% on the flight price compared to flying in the afternoon, which is usually more expensive.

How much does it cost for a return flight from Washington, D.C. to San Francisco?

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to San Francisco from Washington, D.C.?

    Located just 11.8 mi from the city center, San Francisco is the airport most travelers will use when flying to San Francisco from Washington, D.C.. Booking flights from Washington, D.C. to San Francisco (SFO) should be relatively easy as there are 29 daily inbound flights from Washington, D.C. from 0 different airlines.

  • How long is the flight from Washington, D.C. to San Francisco?

    Departing from Washington, D.C. to San Francisco will take you 5h 50m. Washington, D.C. and San Francisco are separated by a distance of 2435 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from Washington, D.C. to San Francisco one-way?

    One-way options have recently been found by users for as low as £103 on Southwest. Other airlines that offer cheap prices include Delta from £103 and JetBlue from £103 one-way.

  • What are the most popular routes from Washington, D.C. to San Francisco?

  • What are the most reliable airlines from Washington, D.C. to San Francisco?

    No one likes to see their flight delayed. When booking a flight from Washington, D.C. to San Francisco consider choosing Ethiopian Air (92%), Air China (88%) or Egyptair (84%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Washington, D.C. to San Francisco?

    Looking at all options, your cheapest flight can be booked for £206. While the most popular route (Washington, D.C. Reagan-National - San Francisco) can be booked for £178 on average our data indicates £211 when flying from Washington, D.C. to San Francisco.

  • Can I find deals for flights from Washington, D.C. to San Francisco that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to San Francisco.

  • Can I find deals for business class flights from Washington, D.C. to San Francisco?

    Yes. Cheapflights offers flight deals from Washington, D.C. to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. to San Francisco?

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to San Francisco (average of £538). Flying from Washington, D.C. to San Francisco in July is currently the most expensive (average of £803). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Newark
South San Francisco
Bodega Bay
Pacific Grove
Union City

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Alternative routes for Washington, D.C. to San Francisco

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How does Cheapflights help users find flights from Washington, D.C. to San Francisco?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Washington, D.C. to San Francisco. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to San Francisco?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Francisco from Washington, D.C..

Can Cheapflights find flights from Washington, D.C. to San Francisco with no change fees?

Yes! Cheapflights helps users easily find flights from Washington, D.C. to San Francisco with no change fees.

Can Cheapflights notify me if prices for flights from Washington, D.C. to San Francisco become cheaper?

Yes! Start tracking prices for Washington, D.C. to San Francisco flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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