Cheap Flights Washington D.C. to San Francisco from £81

Flight FAQs

• Which airlines offer the cheapest flights from Washington D.C. to San Francisco?

  Based on Trip.com data, Frontier Airlines offers Cheapest nonstop one-way flights from £81 (for example, DCA–SFO on Mon, Oct 5). For a Cheapest nonstop return flight, Frontier Airlines offers fares from £159, departing on Mon, Nov 2 and returning on Sat, Nov 7.

• Which airlines offer direct flights from Washington D.C. to San Francisco?

  At the moment, you can catch a direct flight from Washington D.C. to San Francisco with the following airlines, including: United Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

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

  A flight from Washington D.C. (WAS) to San Francisco (SFO) takes an average of 5 hours 55 minutes.

• When is the best time to book flights from Washington D.C. to San Francisco?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Washington D.C. to San Francisco is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there from Washington D.C. to San Francisco each week?

  On average, 87 direct flights operate each week between Washington D.C. and San Francisco. See below the schedules of the main airlines serving this route:
  United Airlines: S/M/T/W/T/F/S – UA1147 (departure at 08:52)

• How can I find the best deals on flights from Washington D.C. to San Francisco?

  Here are some tips for finding the best flight deals from Washington D.C. to San Francisco on Trip.com:
  · Be flexible with your travel dates. The cheapest flight is currently on Mon, Oct 5, with one-way fares from just £81.
  · Compare airlines. Alaska Airlines currently offers the lowest fares on this route.
  · Set up a price alert to track fare changes without searching every day.
  · Check Trip.com regularly for flight deals and available promo codes.
  · Avoid peak season or book early. July is generally the busiest month for travel to San Francisco.
  · Get exclusive promo codes on the Trip.com app.

• When is the best time to book a flight from Washington D.C. to San Francisco to get the best price?

  The cheapest month to book a flight from Washington D.C. to San Francisco is usually November, when demand is lower.

• Which upcoming date is the cheapest for flights from Washington D.C. to San Francisco?

  After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Washington D.C. to San Francisco on September 12, 2026 with Frontier Airlines, with prices starting at £80.

• Which airports should you choose for flights from Washington D.C. to San Francisco?

  Flights to San Francisco can arrive at: San Francisco International Airport (SFO). The most common route connects Ronald Reagan Washington National Airport and San Francisco International Airport (DCA–SFO).

• What is the time difference between Washington D.C. and San Francisco?

  The time difference between San Francisco and Washington D.C. is 3h.

• How can I change or cancel my flight ticket from Washington D.C. to San Francisco?

  Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

• What is the average price of a one-way flight from Washington D.C. to San Francisco?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Washington D.C. to San Francisco is £201. Fares vary by travel date, airline and availability.

• What is the average price of a return flight from Washington D.C. to San Francisco?

  Based on Trip.com data for flights departing in the next 30 days, the average return fare from Washington D.C. to San Francisco is £374. Fares vary by travel date, airline and availability.

• How do I book flights from Washington D.C. to San Francisco on Trip.com?

  Enter Washington D.C. and San Francisco, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveller details and complete payment to receive your confirmation.

• Are there budget airlines on the Washington D.C. to San Francisco route?

  Frontier Airlinesare the most popular budget airlines flying from Washington D.C. to San Francisco. Check baggage, seat and payment fees before comparing the final price.