€113 Cheap Flights Washington to San Diego (IAD-SAN)

View €113 flight on Sat, 15 Aug 2026Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to San Diego Intl. Airport (SAN)

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Cheap flights from Washington to San Diego (IAD-SAN)

Prices were available within the past 7 days and start at €113 for one-way flights and €243 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 30 May - Fri, 5 Jun
IAD
Washington
SAN
San Diego
€243 Return, found 22 hours ago
€243
Return
found 22 hours ago
Select Delta flight, departing Sat, 30 May from Washington to San Diego, returning Fri, 5 Jun, priced at €243 found 22 hours ago
American Airlines
Sat, 23 May - Sat, 30 May
IAD
Washington
SAN
San Diego
€269 Return, found 4 days ago
€269
Return
found 4 days ago
Select American Airlines flight, departing Sat, 23 May from Washington to San Diego, returning Sat, 30 May, priced at €269 found 4 days ago
American Airlines
Sat, 23 May - Sat, 30 May
IAD
Washington
SAN
San Diego
€299 Return, found 4 days ago
€299
Return
found 4 days ago
Select American Airlines flight, departing Sat, 23 May from Washington to San Diego, returning Sat, 30 May, priced at €299 found 4 days ago
Delta
Sat, 23 May - Sat, 30 May
IAD
Washington
SAN
San Diego
€305 Return, found 4 days ago
€305
Return
found 4 days ago
Select Delta flight, departing Sat, 23 May from Washington to San Diego, returning Sat, 30 May, priced at €305 found 4 days ago
American Airlines
Sat, 16 May - Sat, 23 May
IAD
Washington
SAN
San Diego
€309 Return, found 3 days ago
€309
Return
found 3 days ago
Select American Airlines flight, departing Sat, 16 May from Washington to San Diego, returning Sat, 23 May, priced at €309 found 3 days ago
American Airlines
Sat, 16 May - Sat, 23 May
IAD
Washington
SAN
San Diego
€316 Return, found 3 days ago
€316
Return
found 3 days ago
Select American Airlines flight, departing Sat, 16 May from Washington to San Diego, returning Sat, 23 May, priced at €316 found 3 days ago
American Airlines
Sat, 23 May - Sat, 30 May
IAD
Washington
SAN
San Diego
€321 Return, found 4 days ago
€321
Return
found 4 days ago
Select American Airlines flight, departing Sat, 23 May from Washington to San Diego, returning Sat, 30 May, priced at €321 found 4 days ago
United
Sat, 23 May - Sat, 30 May
IAD
Washington
SAN
San Diego
€329 Return, found 4 days ago
€329
Return
found 4 days ago
Select United flight, departing Sat, 23 May from Washington to San Diego, returning Sat, 30 May, priced at €329 found 4 days ago
American Airlines
Sat, 16 May - Sat, 23 May
IAD
Washington
SAN
San Diego
€330 Return, found 3 days ago
€330
Return
found 3 days ago
Select American Airlines flight, departing Sat, 16 May from Washington to San Diego, returning Sat, 23 May, priced at €330 found 3 days ago
United
Sat, 16 May - Sat, 23 May
IAD
Washington
SAN
San Diego
€335 Return, found 3 days ago
€335
Return
found 3 days ago
Select United flight, departing Sat, 16 May from Washington to San Diego, returning Sat, 23 May, priced at €335 found 3 days ago

Frequently asked questions

How much is a flight from Dulles Intl. Airport to San Diego Airport?
The lowest price advertised for a round-trip journey from Dulles Intl. Airport to SAN is €243. But you better get a move on. This price is based on fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Washington Dulles Intl. Airport (IAD) to San Diego Intl. Airport (SAN)?
We understand that circumstances change unexpectedly, so we've made it as easy as possible for you to cancel your flight online. Just head to the Customer Service Portal and follow the instructions.
How do I find cheap flights from IAD to San Diego Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Dulles Intl. Airport to San Diego Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from IAD to San Diego Airport?
The flying distance between Washington Dulles Intl. Airport (IAD) (IAD) and San Diego Airport (SAN) is 3,600 kilometres. Listen to some music or finish that novel and the trip will fly by.
Which airlines fly direct from IAD to SAN?
A favourite with many frequent flyers, United Airlines (UA) offers 91 flights every month from Washington Dulles Intl. Airport (IAD) to SAN. Pick the one that suits your travel plans and book your fare today.
Are Dulles Intl. Airport to San Diego Intl. Airport (SAN) flight tickets cheaper when they're purchased at the last minute?
Late planners can occasionally score a bargain, with some of the cheapest fares from Dulles Intl. Airport to San Diego Intl. Airport (SAN) appearing a few weeks before the date of departure. If you'd rather book ahead of time, Expedia compares and updates the best flight deals continuously — as early as 12 months in advance in some cases. It depends on the carrier though, as not all airlines publish prices that far in advance.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
San Diego Intl.
Airlines serving
American Airlines, Delta, United
Return price
€243
Distance
3598 km
Average flight time
3 hours 26 mins

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