Cheap Flights from Washington (DCA) to San Diego (SDM)

Popular airlines from Ronald Reagan Washington National Airport (DCA) to San Diego, CA (SDM-Brown Field Municipal)

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Alternative airports near San Diego

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to General Abelardo L. Rodriguez Intl. TIJ. Average driving time to city center is 26 minutes. Flights from $778
TIJ
General Abelardo L. Rodriguez Intl.
Average driving time to city center26 min
Flights from $778

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to San Diego, CA (SDM-Brown Field Municipal) cost?
Get a cheap one-way flight or cheap return flight from Ronald Reagan Washington National Airport (DCA) to San Diego, CA (SDM-Brown Field Municipal) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Ronald Reagan Washington National Airport (DCA) to San Diego, CA (SDM-Brown Field Municipal)?
The cheapest month to fly from DCA to SDM is , when there's less demand. Off-peak season is often when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to San Diego, CA (SDM-Brown Field Municipal)?
To find the cheapest airline flying from DCA to SDM, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to San Diego, CA (SDM-Brown Field Municipal)?
There aren't any daily nonstop flights departing from Ronald Reagan Washington National Airport (DCA) to San Diego, CA (SDM-Brown Field Municipal). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from DCA to SDM?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to San Diego, CA (SDM-Brown Field Municipal)?
To avoid potential delays on the Ronald Reagan Washington National Airport (DCA) to San Diego, CA (SDM-Brown Field Municipal) route, aim to fly before 3 PM. Later departures are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Ronald Reagan Washington National Airport (DCA) to San Diego, CA (SDM-Brown Field Municipal) last-minute?
Booking your ticket from DCA to SDM shortly before your getaway is generally more expensive. But if there's some wiggle room with your departure dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a DCA to SDM flight and hotel package?
Securing a DCA to SDM flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our extensive range of stays and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to San Diego, CA (SDM-Brown Field Municipal)?
If you reserved your DCA to SDM flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Brown Field Municipal
Distance
2263 mi

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Washington to San Diego Flights

The cheapest times to fly from Washington to San Diego

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to San Diego are during the month of . You can find some of the cheapest flights from Washington to San Diego with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to San Diego

Sunday is one of the best days to book for cheap flights from Washington to San Diego: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to San Diego

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to San Diego flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to San Diego airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Washington to San Diego Flights

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