$94 Cheap Frontier Airlines flights Washington (DCA) to San Diego (SAN)

You’ll find cheap round-trip Frontier Airlines flights from $188 from DCA to SAN by organizing your results from “Price (lowest to highest)” on Expedia. Or search for deals from $94 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Search for return or one-way flights to San Diego in January or November. You could find a cheap fare with Frontier Airlines during these off-peak travel months.

Start searching one to three months ahead of your departure date to get cheap fares on Frontier Airlines flights from Ronald Reagan Washington National Airport (DCA) to San Diego Intl. Airport (SAN). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing spot on, and you can enjoy significant savings on domestic flights.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

To see if there’s a direct route from DCA to SAN with Frontier Airlines or another carrier, check the “Nonstop” filter when looking for tickets.

Sort your results by “Early Morning” and “Morning” to browse the earliest flights from DCA to SAN. Setting off early means flight cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Frontier Airlines flights from Ronald Reagan Washington National Airport (DCA) to San Diego come in to land at San Diego Intl. Airport (SAN). This is the main entry point to this city.

A rewarding loyalty program and the opportunity to collect points through Frontier Miles are the start of the reasons to leave from DCA to SAN with Frontier Airlines. Plus, when you join our One Key™ program, you can receive OneKeyCash™* alongside any airline loyalty program earnings. You can put it toward your future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are generally free within 24 hours of making your booking, but your airline may charge a fee after that. For further information about altering your flights, head to your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to update your itinerary without being charged, check the “Changes included” and “No cancel fee” filters when planning your next adventure.