₩186,300 Cheap Delta flights Washington (IAD) to San Diego (SAN)

View ₩186,300 flight on Sat, Apr 18, 2026Opens in a new window

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

₩186,300 Cheap Delta flights Washington (IAD) to San Diego (SAN)

Prices were available within the past 7 days and start at ₩186,300 for one-way flights and ₩732,800 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Apr 2 - Tue, Apr 7
IAD
Washington
SAN
San Diego
₩732,800 Roundtrip, found 3 days ago
₩732,800
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Apr 2 from Washington to San Diego, returning Tue, Apr 7, priced at ₩732,800 found 3 days ago
Delta
Thu, Apr 2 - Tue, Apr 7
IAD
Washington
SAN
San Diego
₩737,100 Roundtrip, found 3 days ago
₩737,100
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Apr 2 from Washington to San Diego, returning Tue, Apr 7, priced at ₩737,100 found 3 days ago
Delta
Thu, Apr 2 - Tue, Apr 7
IAD
Washington
SAN
San Diego
₩738,600 Roundtrip, found 3 days ago
₩738,600
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Apr 2 from Washington to San Diego, returning Tue, Apr 7, priced at ₩738,600 found 3 days ago
Delta
Wed, Mar 11 - Thu, Mar 12
IAD
Washington
SAN
San Diego
₩854,400 Roundtrip, found 1 day ago
₩854,400
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Mar 11 from Washington to San Diego, returning Thu, Mar 12, priced at ₩854,400 found 1 day ago
Delta
Wed, Mar 11 - Thu, Mar 12
IAD
Washington
SAN
San Diego
₩891,900 Roundtrip, found 1 day ago
₩891,900
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Mar 11 from Washington to San Diego, returning Thu, Mar 12, priced at ₩891,900 found 1 day ago
Delta
Wed, Mar 11 - Thu, Mar 12
IAD
Washington
SAN
San Diego
₩912,500 Roundtrip, found 1 day ago
₩912,500
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Mar 11 from Washington to San Diego, returning Thu, Mar 12, priced at ₩912,500 found 1 day ago

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

September is typically the cheapest month to fly

From ₩254,591 - ₩463,718 per traveler.

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 ₩732,800 from IAD to SAN by filtering your results from "Price (lowest to highest)" on Expedia. Or look for options from ₩186,300 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
3 hours 33 mins
*Available to Expedia members.