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