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

Featured airlines

American Airlines
United
Southwest Airlines
Delta
Spirit Airlines
JetBlue Airways
Frontier Airlines
Air India
Hawaiian Airlines

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key
Find available prices by choosing your travel dates.

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to San Diego, CA (SDM-Brown Field Municipal) cost?
Discover the latest flight deals from DCA to SDM by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from DCA to SDM?
The cheapest flights from DCA to SDM are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from DCA to SDM?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from DCA to SDM. Sort your results by “Price (lowest to highest)” to snap up a great deal.
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.
*Available to One Key members.