Delta Cheap Flights from Washington to San Diego

View €118 flight on Sat, 25 Oct 2025Opens in a new window
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Prices were available within the past 7 days and start at €118 for one-way flights and €245 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 28 Oct - Fri, 31 Oct
DCA
Washington
SAN
San Diego
€245 Return, just found
€245
Return
just found
Select Delta flight, departing Tue, 28 Oct from Washington to San Diego, returning Fri, 31 Oct, priced at €245 just found
Delta
Wed, 18 Mar - Wed, 25 Mar
DCA
Washington
SAN
San Diego
€270 Return, found 2 days ago
€270
Return
found 2 days ago
Select Delta flight, departing Wed, 18 Mar from Washington to San Diego, returning Wed, 25 Mar, priced at €270 found 2 days ago
Delta
Tue, 28 Oct - Fri, 31 Oct
DCA
Washington
SAN
San Diego
€306 Return, just found
€306
Return
just found
Select Delta flight, departing Tue, 28 Oct from Washington to San Diego, returning Fri, 31 Oct, priced at €306 just found
Delta
Tue, 28 Oct - Fri, 31 Oct
DCA
Washington
SAN
San Diego
€331 Return, just found
€331
Return
just found
Select Delta flight, departing Tue, 28 Oct from Washington to San Diego, returning Fri, 31 Oct, priced at €331 just found
Delta
Wed, 18 Mar - Wed, 25 Mar
DCA
Washington
SAN
San Diego
€340 Return, found 2 days ago
€340
Return
found 2 days ago
Select Delta flight, departing Wed, 18 Mar from Washington to San Diego, returning Wed, 25 Mar, priced at €340 found 2 days ago
Delta
Wed, 18 Mar - Wed, 25 Mar
DCA
Washington
SAN
San Diego
€353 Return, found 2 days ago
€353
Return
found 2 days ago
Select Delta flight, departing Wed, 18 Mar from Washington to San Diego, returning Wed, 25 Mar, priced at €353 found 2 days ago
Washington to San Diego route information
Origin airport
Ronald Reagan Washington National
Destination airport
San Diego Intl.
Distance
3633 km

Frequently asked questions

How much is a Delta Air Lines flight from Ronald Reagan Washington National Airport (DCA) to San Diego Intl. Airport (SAN)?
Landing cheap one-way Delta Air Lines flights from DCA to SAN from €118 on Expedia is a breeze — just filter by "Price (lowest to highest)." Or check out our affordable return fares from €245 for your next exciting adventure.**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.
What is the cheapest month to fly from DCA to SAN with Delta Air Lines?
Delta Air Lines flights to San Diego are often cheaper in the low-season months of January and November. Whether you're after a return or one-way ticket, you could land a better deal then.
Does Delta Air Lines fly nonstop from Ronald Reagan Washington National Airport (DCA) to San Diego Intl. Airport (SAN)?
Fill in your dates, press search and check "Nonstop" on Expedia to browse any direct flights from DCA to SAN with Delta Air Lines or another airline.
What airports does Delta Air Lines fly into in San Diego?
San Diego Intl. Airport (SAN) is the primary San Diego gateway for Delta Air Lines flights from Ronald Reagan Washington National Airport (DCA).
Can I change or cancel my Delta Air Lines flight from Ronald Reagan Washington National Airport (DCA) to San Diego Intl. Airport (SAN)?
Depending on the ticket type you purchased, a fee may apply if you cancel or reschedule your booking more than 24 hours after it's confirmed. To secure plane tickets with more flexibility, select our "Changes included" and "No cancel fee" boxes when looking for flights. For more details on cancelling or modifying your reservation, visit "Trips," select your flight and tick "Manage Booking."
*Available to Expedia members.