Cheap flights from Washington, D.C. Dulles Intl Airport to San Francisco from $139

If you aren’t able to travel to San Francisco during the month of February, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $383.

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to San Francisco is on a Thursday when prices can be found for as low as $497. The most expensive day to fly to San Francisco is Monday, with ticket prices averaging around $746.

Our data shows that the cheapest Washington, D.C. Dulles Intl Airport to San Francisco flights are usually those with departure times at noon. Our users have found flights to San Francisco at noon for as low as $458. Flights in the afternoon are often more expensive with an average ticket price of $626.

Fly from Washington, D.C. Dulles Intl to San Francisco for the best Washington, D.C. Dulles Intl - San Francisco flight prices

You are more likely to see cheaper flights to San Francisco from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $423 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Washington, D.C. Dulles Intl Airport for as low as $372 on momondo.

There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Washington, D.C. Dulles Intl Airport to San Francisco.

As of March 2026, prices for Washington, D.C. Dulles Intl Airport to San Francisco flights are approximately 18% cheaper when compared to flights at the same time last year.

Southwest, Delta, and United Airlines are the most popular carriers operating from Washington, D.C. Dulles Intl to San Francisco

United Airlines, Alaska Airlines and Frontier are the top three most popular airlines that fly to San Francisco from Washington, D.C. Dulles Intl Airport according to our data. United Airlines is the first choice among our users, with 74% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 7 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

Historically, on average around 17% of flights between Washington, D.C. and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 190 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 16% of their flights experiencing any sort of delay.

Detroit (DTW) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Las Vegas (LAS) offer the lowest average round-trip price of $340.

Flights connecting via Las Vegas (LAS) have the shortest average one-way travel time: 7h 49m.

Detroit (DTW) has the shortest average layover time for this route: 1h 40m.

As of March 2026, 6 flights take off from Washington, D.C. Dulles Intl Airport and land in San Francisco each day. The most common flight departure time for this route is 6:00PM, with 38% of daily flights taking off in the evening.

As of March 2026, there are 42 flights per week flying from Washington, D.C. Dulles Intl Airport to San Francisco. The most common day of the week flights depart is Sat, with 71% of flights taking off on this day.