S$165 Cheap Flights from Washington to San Diego

View S$165 flight on Sat, 31 Jan, 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 S$165 for one-way flights and S$305 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, 31 Jan - Wed, 4 Feb
IAD
Washington
SAN
San Diego
S$305 Return, found 1 day ago
S$305
Return
found 1 day ago
Select Alaska Airlines flight, departing Sat, 31 Jan from Washington to San Diego, returning Wed, 4 Feb, priced at S$305 found 1 day ago
Alaska Airlines
Tue, 3 Feb - Sat, 7 Feb
IAD
Washington
SAN
San Diego
S$306 Return, found 1 day ago
S$306
Return
found 1 day ago
Select Alaska Airlines flight, departing Tue, 3 Feb from Washington to San Diego, returning Sat, 7 Feb, priced at S$306 found 1 day ago
Delta
Sat, 31 Jan - Mon, 2 Feb
IAD
Washington
SAN
San Diego
S$343 Return, found 1 day ago
S$343
Return
found 1 day ago
Select Delta flight, departing Sat, 31 Jan from Washington to San Diego, returning Mon, 2 Feb, priced at S$343 found 1 day ago
Alaska Airlines
Tue, 3 Feb - Fri, 6 Feb
IAD
Washington
SAN
San Diego
S$343 Return, found 1 day ago
S$343
Return
found 1 day ago
Select Alaska Airlines flight, departing Tue, 3 Feb from Washington to San Diego, returning Fri, 6 Feb, priced at S$343 found 1 day ago
Delta
Fri, 6 Feb - Mon, 9 Feb
IAD
Washington
SAN
San Diego
S$357 Return, found 1 day ago
S$357
Return
found 1 day ago
Select Delta flight, departing Fri, 6 Feb from Washington to San Diego, returning Mon, 9 Feb, priced at S$357 found 1 day ago
Alaska Airlines
Thu, 5 Feb - Thu, 12 Feb
IAD
Washington
SAN
San Diego
S$382 Return, found 1 day ago
S$382
Return
found 1 day ago
Select Alaska Airlines flight, departing Thu, 5 Feb from Washington to San Diego, returning Thu, 12 Feb, priced at S$382 found 1 day ago
Delta
Fri, 6 Feb - Mon, 9 Feb
IAD
Washington
SAN
San Diego
S$389 Return, found 1 day ago
S$389
Return
found 1 day ago
Select Delta flight, departing Fri, 6 Feb from Washington to San Diego, returning Mon, 9 Feb, priced at S$389 found 1 day ago
United
Sat, 31 Jan - Mon, 2 Feb
IAD
Washington
SAN
San Diego
S$395 Return, found 1 day ago
S$395
Return
found 1 day ago
Select United flight, departing Sat, 31 Jan from Washington to San Diego, returning Mon, 2 Feb, priced at S$395 found 1 day ago
Delta
Sat, 31 Jan - Mon, 2 Feb
IAD
Washington
SAN
San Diego
S$395 Return, found 1 day ago
S$395
Return
found 1 day ago
Select Delta flight, departing Sat, 31 Jan from Washington to San Diego, returning Mon, 2 Feb, priced at S$395 found 1 day ago
American Airlines
Sat, 31 Jan - Mon, 2 Feb
IAD
Washington
SAN
San Diego
S$420 Return, found 1 day ago
S$420
Return
found 1 day ago
Select American Airlines flight, departing Sat, 31 Jan from Washington to San Diego, returning Mon, 2 Feb, priced at S$420 found 1 day ago

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

October is typically the cheapest month to fly

From S$225 - S$399 per traveller.

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 S$305. 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
Alaska Airlines, American Airlines, Delta, United
Return price
S$304
Distance
3598 km
Average flight time
2 hours 51 mins

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*Note: Prices may vary based on availability and are subject to change.
Perfect flights from Washington to San Diego

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