Cheap flights from San Diego to District of Columbia from $179

In general, October is the cheapest month to fly from San Diego to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $350. If you don’t want to visit District of Columbia in October, then you should wait until February to fly from San Diego, when ticket prices are also cheap, with an average price of $354.

The cheapest day to depart on your flight to District of Columbia is on a Friday when prices can be found for as low as $411. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from San Diego because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $645.

Flying to District of Columbia from San Diego at noon is the least expensive time of day to depart. momondo users have found prices as low as $448 when looking at flights departing at noon. Flights to District of Columbia are more costly in the morning, with an average ticket price of $498. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from San Diego to Washington, D.C. Reagan-National for the best San Diego - District of Columbia flight prices

You are more likely to see cheaper flights to District of Columbia from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to District of Columbia for around $415 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to District of Columbia from San Diego for as low as $348 on momondo.

There are 4 cabin classes available to choose from on San Diego to District of Columbia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Delta, Alaska Airlines, and United Airlines are the most popular carriers operating from San Diego to District of Columbia

Southwest, United Airlines and Alaska Airlines are the top three most popular airlines that fly to District of Columbia from San Diego according to our data. Southwest is the first choice among our users, with 33% of people opting to fly with this airline when traveling to District of Columbia. Keep in mind that there are 8 different airlines that fly to District of Columbia on a routine basis, so you have a few additional options to choose from.

As of August 2026, 9 flights take off from San Diego and land in District of Columbia each day. The most common flight departure time for this route is 8:00AM, with 54% of daily flights taking off at noon.

69 flights are operational weekly from San Diego to District of Columbia as of August 2026. The most popular departure day for this route is Thu, with 20% of flights per week taking off on this day.