฿4,025 Cheap Delta flights from Washington to San Diego (DCA→SAN)

View ฿4,025 flight on Wed, 20 May 2026Opens in a new window

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Delta flights from Washington to San Diego (DCA→SAN)

Prices were available within the past 7 days and start at ฿4,025 for one-way flights and ฿8,200 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 18 Apr - Sat, 25 Apr
DCA
Washington
SAN
San Diego
฿8,200 Return, found 8 hours ago
฿8,200
Return
found 8 hours ago
Select Delta flight, departing Sat, 18 Apr from Washington to San Diego, returning Sat, 25 Apr, priced at ฿8,200 found 8 hours ago
Delta
Wed, 20 May - Tue, 26 May
DCA
Washington
SAN
San Diego
฿8,990 Return, found 5 days ago
฿8,990
Return
found 5 days ago
Select Delta flight, departing Wed, 20 May from Washington to San Diego, returning Tue, 26 May, priced at ฿8,990 found 5 days ago
Delta
Sat, 18 Apr - Sat, 25 Apr
DCA
Washington
SAN
San Diego
฿10,470 Return, found 8 hours ago
฿10,470
Return
found 8 hours ago
Select Delta flight, departing Sat, 18 Apr from Washington to San Diego, returning Sat, 25 Apr, priced at ฿10,470 found 8 hours ago
Delta
Wed, 20 May - Tue, 26 May
DCA
Washington
SAN
San Diego
฿11,180 Return, found 5 days ago
฿11,180
Return
found 5 days ago
Select Delta flight, departing Wed, 20 May from Washington to San Diego, returning Tue, 26 May, priced at ฿11,180 found 5 days ago
Delta
Sat, 18 Apr - Sat, 25 Apr
DCA
Washington
SAN
San Diego
฿11,410 Return, found 8 hours ago
฿11,410
Return
found 8 hours ago
Select Delta flight, departing Sat, 18 Apr from Washington to San Diego, returning Sat, 25 Apr, priced at ฿11,410 found 8 hours ago
Delta
Wed, 20 May - Tue, 26 May
DCA
Washington
SAN
San Diego
฿11,805 Return, found 5 days ago
฿11,805
Return
found 5 days ago
Select Delta flight, departing Wed, 20 May from Washington to San Diego, returning Tue, 26 May, priced at ฿11,805 found 5 days ago

Find the cheapest month to fly from Washington (DCA) to San Diego (SAN)

January is typically the cheapest month to fly

From ฿4,325 - ฿9,646 per traveller.

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 ฿4,025 on Expedia is a breeze — just filter by "Price (lowest to highest)." Or check out our affordable return fares from ฿8,200 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."

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
San Diego Intl.
Airlines serving
American Airlines, Delta, United
Popular airline
Delta
Distance
3633 km
Average flight time
4 hours 11 mins

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