Delta Cheap Flights from Washington to San Diego

View €120 flight on Sat, 4 Oct 2025Opens in a new window
    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 15% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Prices were available within the past 7 days and start at €120 for one-way flights and €255 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, 3 Nov - Thu, 6 Nov
IAD
Washington
SAN
San Diego
€255 Return, found 4 days ago
€255
Return
found 4 days ago
Select Delta flight, departing Mon, 3 Nov from Washington to San Diego, returning Thu, 6 Nov, priced at €255 found 4 days ago
Delta
Sat, 27 Sept - Sat, 4 Oct
IAD
Washington
SAN
San Diego
€265 Return, found 1 day ago
€265
Return
found 1 day ago
Select Delta flight, departing Sat, 27 Sept from Washington to San Diego, returning Sat, 4 Oct, priced at €265 found 1 day ago
Delta
Mon, 3 Nov - Thu, 6 Nov
IAD
Washington
SAN
San Diego
€272 Return, found 4 days ago
€272
Return
found 4 days ago
Select Delta flight, departing Mon, 3 Nov from Washington to San Diego, returning Thu, 6 Nov, priced at €272 found 4 days ago
Delta
Sat, 27 Sept - Sat, 4 Oct
IAD
Washington
SAN
San Diego
€274 Return, found 1 day ago
€274
Return
found 1 day ago
Select Delta flight, departing Sat, 27 Sept from Washington to San Diego, returning Sat, 4 Oct, priced at €274 found 1 day ago
Delta
Sat, 27 Sept - Sat, 4 Oct
IAD
Washington
SAN
San Diego
€282 Return, found 1 day ago
€282
Return
found 1 day ago
Select Delta flight, departing Sat, 27 Sept from Washington to San Diego, returning Sat, 4 Oct, priced at €282 found 1 day ago
Delta
Sat, 27 Sept - Sat, 4 Oct
IAD
Washington
SAN
San Diego
€313 Return, found 1 day ago
€313
Return
found 1 day ago
Select Delta flight, departing Sat, 27 Sept from Washington to San Diego, returning Sat, 4 Oct, priced at €313 found 1 day ago
Washington to San Diego route information
Origin airport
Washington Dulles Intl.
Destination airport
San Diego Intl.
Distance
3598 km
Average flight time
3 hours 5 mins

Frequently asked questions

How much is a Delta Air Lines flight from Washington Dulles Intl. Airport (IAD) to San Diego Intl. Airport (SAN)?
You'll discover cheap return Delta Air Lines flights from €255 from IAD to SAN by filtering your results from "Price (lowest to highest)" on Expedia. Or look for options from €120 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.
What is the cheapest month to fly from IAD to SAN with Delta Air Lines?
January is one of the most affordable months to jet off to San Diego with Delta Air Lines. You could also find fantastic deals on one-way and round-trip fares in November.
Does Delta Air Lines fly nonstop from Washington Dulles Intl. Airport (IAD) to San Diego Intl. Airport (SAN)?
Fill in your dates, hit search and check the "Nonstop" filter on Expedia to browse any direct flights from IAD to SAN with Delta Air Lines or other carriers.
What airports does Delta Air Lines fly into in San Diego?
Delta Air Lines flights from Washington Dulles Intl. Airport (IAD) to San Diego arrive at San Diego Intl. Airport (SAN). This is the main entry point to this destination.
Can I change or cancel my Delta Air Lines flight from Washington Dulles Intl. Airport (IAD) to San Diego Intl. Airport (SAN)?
Typically, you can reschedule or cancel your flight, although additional fees may apply if you booked more than 24 hours ago. Need flexible options? Use Expedia's "Changes included" and "No cancel fee" filters to find flights that won't penalize you if you have to adjust your plans. To update your itinerary, visit "Trips," select your flight and click on "Manage Booking" for further information.
*Available to Expedia members.