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

View ฿4,025 flight on Wed, 29 Apr 2026Opens in a new window

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

Prices were available within the past 7 days and start at ฿4,025 for one-way flights and ฿19,840 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 12 Mar - Sun, 15 Mar
IAD
Washington
SAN
San Diego
฿19,840 Return, found 5 days ago
฿19,840
Return
found 5 days ago
Select Delta flight, departing Thu, 12 Mar from Washington to San Diego, returning Sun, 15 Mar, priced at ฿19,840 found 5 days ago
Delta
Thu, 12 Mar - Sun, 15 Mar
IAD
Washington
SAN
San Diego
฿20,810 Return, found 5 days ago
฿20,810
Return
found 5 days ago
Select Delta flight, departing Thu, 12 Mar from Washington to San Diego, returning Sun, 15 Mar, priced at ฿20,810 found 5 days ago
Delta
Thu, 12 Mar - Sun, 15 Mar
IAD
Washington
SAN
San Diego
฿21,405 Return, found 5 days ago
฿21,405
Return
found 5 days ago
Select Delta flight, departing Thu, 12 Mar from Washington to San Diego, returning Sun, 15 Mar, priced at ฿21,405 found 5 days ago
Delta
Thu, 12 Mar - Sun, 15 Mar
IAD
Washington
SAN
San Diego
฿21,570 Return, found 5 days ago
฿21,570
Return
found 5 days ago
Select Delta flight, departing Thu, 12 Mar from Washington to San Diego, returning Sun, 15 Mar, priced at ฿21,570 found 5 days ago
Delta
Thu, 12 Mar - Sun, 15 Mar
IAD
Washington
SAN
San Diego
฿21,695 Return, found 5 days ago
฿21,695
Return
found 5 days ago
Select Delta flight, departing Thu, 12 Mar from Washington to San Diego, returning Sun, 15 Mar, priced at ฿21,695 found 5 days ago
Delta
Thu, 12 Mar - Sun, 15 Mar
IAD
Washington
SAN
San Diego
฿22,375 Return, found 5 days ago
฿22,375
Return
found 5 days ago
Select Delta flight, departing Thu, 12 Mar from Washington to San Diego, returning Sun, 15 Mar, priced at ฿22,375 found 5 days ago

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

September is typically the cheapest month to fly

From ฿5,612 - ฿10,221 per traveller.

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 ฿19,840 from IAD to SAN by filtering your results from "Price (lowest to highest)" on Expedia. Or look for options from ฿4,025 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.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
San Diego Intl.
Distance
3598 km
Average flight time
2 hours 52 mins

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