Cheap Flights from San Francisco to Washington DCfrom $243

Compare and book cheap flights from San Francisco (SFO) to Washington DC (WAS). We track fares across dozens of airlines and online travel agencies, then surface the lowest prices for you. Deals refresh every few hours.

Plan the full San Francisco → Washington DC trip

Give visitors multiple next steps: book the fare, browse more departures, or lock in the stay.

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About the San Francisco to Washington DC route

The route between San Francisco (United States) and Washington DC (United States) is a popular path for both leisure and business travellers. Most major carriers operate this corridor and competition keeps fares accessible — especially if you book mid-week and travel outside the high season.

Best time to book

For the cheapest fares from San Francisco to Washington DC, aim to book around 6–10 weeks before departure for short-haul and 12–16 weeks for long-haul. Tuesdays and Wednesdays usually carry the lowest prices, while shoulder seasons (April–May and September–October) offer the strongest fare-to-experience ratio.

Airlines flying this route

A mix of full-service and low-cost carriers serve this route. Compare alliance partners, baggage policies, and total trip duration — sometimes a one-stop fare with a brief layover is significantly cheaper than the non-stop option without sacrificing total travel time.

Tips for Washington DC

Once you land in Washington DC, plan ahead for transfers from the airport. Public transport, ride-hailing, and pre-booked private transfers all have their place — your best choice depends on luggage, group size, and arrival time. Pair your flight with a hotel deal in Washington DC to maximise savings.

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