Cheap flights from Washington to San Francisco

Cheapest current fares: $127 in August 2026, 3,922 km direct flight in ~4h 37m.

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Live fares · DCA → SFO

Cheapest month-by-month fares

Lowest available fare per calendar month from Washington (DCA) to San Francisco (SFO). Refreshed daily.

Washington (DCA) → San Francisco (SFO)

  1. August 2026 $127
  2. November 2026 $130
  3. September 2026 $148

Frequently asked questions

  • What is the cheapest month to fly from Washington to San Francisco?

    Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Washington (DCA) to San Francisco (SFO), with fares starting from $127.

  • What is the lowest current fare from DCA to SFO?

    The lowest currently-listed fare from Washington (DCA) to San Francisco (SFO) is $127 on 2026-08-31.

  • How long is the flight from Washington to San Francisco?

    Direct flights from DCA to SFO cover approximately 3,922 km (2,437 miles), with an estimated flight time of 4h 37m. Operating airlines: AS, UA.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.

Full route page: DCA → SFO Cheapest month to fly to San Francisco All flights from Washington All flights to San Francisco Flights to USA Visa-free with USA passport AS routes UA routes