Cheap flights from Washington, D.C. Reagan-National Airport to San Francisco from $173

If you aren’t able to travel to San Francisco during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $352.

The cheapest day to depart from Washington, D.C. Reagan-National Airport to San Francisco is on a Thursday when prices can be found for as low as $539. The most expensive day to fly to San Francisco is Monday, with ticket prices averaging around $782.

Our data shows that the cheapest Washington, D.C. Reagan-National 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 $542. Flights in the evening are often more expensive with an average ticket price of $705.

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

You are more likely to see cheaper flights to San Francisco from Washington, D.C. Reagan-National Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $490 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. Reagan-National Airport for as low as $364 on momondo.

There are 4 cabin classes available to choose from on Washington, D.C. Reagan-National Airport 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. Reagan-National Airport to San Francisco.

As of July 2026, prices for Washington, D.C. Reagan-National Airport to San Francisco flights are approximately 13% more expensive when compared to flights at the same time last year.

Delta, Southwest, and Alaska Airlines are the most popular carriers operating from Washington, D.C. Reagan-National to San Francisco

United Airlines, Alaska Airlines and Southwest are the top three most popular airlines that fly to San Francisco from Washington, D.C. Reagan-National Airport according to our data. United Airlines is the first choice among our users, with 59% 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 19% 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 186 minutes.

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

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday 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 15% of their flights experiencing any sort of delay.

9 flights are operational daily from Washington, D.C. Reagan-National Airport to San Francisco as of July 2026. The most popular departure time for this route is 7:00AM, with 45% of flights per day taking off at noon.

63 flights are operational weekly from Washington, D.C. Reagan-National Airport to San Francisco as of July 2026. The most popular departure day for this route is Mon, with 19% of flights per week taking off on this day.