฿8,110 Cheap Flights from Washington (IAD) to San Diego (SAN)

View ฿8,110 flight on Wed, 18 Feb 2026Opens in a new window

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

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Cheap Flights from Washington (IAD) to San Diego (SAN)

Prices were available within the past 7 days and start at ฿8,110 for one-way flights and ฿13,405 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, 18 Feb - Wed, 25 Feb
IAD
Washington
SAN
San Diego
฿13,405 Return, found 5 days ago
฿13,405
Return
found 5 days ago
Select United flight, departing Wed, 18 Feb from Washington to San Diego, returning Wed, 25 Feb, priced at ฿13,405 found 5 days ago
Delta
Wed, 18 Feb - Wed, 25 Feb
IAD
Washington
SAN
San Diego
฿13,715 Return, found 5 days ago
฿13,715
Return
found 5 days ago
Select Delta flight, departing Wed, 18 Feb from Washington to San Diego, returning Wed, 25 Feb, priced at ฿13,715 found 5 days ago
United
Wed, 18 Feb - Wed, 25 Feb
IAD
Washington
SAN
San Diego
฿13,720 Return, found 5 days ago
฿13,720
Return
found 5 days ago
Select United flight, departing Wed, 18 Feb from Washington to San Diego, returning Wed, 25 Feb, priced at ฿13,720 found 5 days ago
United
Wed, 18 Feb - Wed, 25 Feb
IAD
Washington
SAN
San Diego
฿14,335 Return, found 5 days ago
฿14,335
Return
found 5 days ago
Select United flight, departing Wed, 18 Feb from Washington to San Diego, returning Wed, 25 Feb, priced at ฿14,335 found 5 days ago
United
Wed, 18 Feb - Wed, 25 Feb
IAD
Washington
SAN
San Diego
฿14,345 Return, found 5 days ago
฿14,345
Return
found 5 days ago
Select United flight, departing Wed, 18 Feb from Washington to San Diego, returning Wed, 25 Feb, priced at ฿14,345 found 5 days ago
United
Wed, 18 Feb - Wed, 25 Feb
IAD
Washington
SAN
San Diego
฿14,650 Return, found 5 days ago
฿14,650
Return
found 5 days ago
Select United flight, departing Wed, 18 Feb from Washington to San Diego, returning Wed, 25 Feb, priced at ฿14,650 found 5 days ago
American Airlines
Wed, 18 Feb - Wed, 25 Feb
IAD
Washington
SAN
San Diego
฿14,965 Return, found 5 days ago
฿14,965
Return
found 5 days ago
Select American Airlines flight, departing Wed, 18 Feb from Washington to San Diego, returning Wed, 25 Feb, priced at ฿14,965 found 5 days ago
American Airlines
Wed, 18 Feb - Wed, 25 Feb
IAD
Washington
SAN
San Diego
฿15,270 Return, found 5 days ago
฿15,270
Return
found 5 days ago
Select American Airlines flight, departing Wed, 18 Feb from Washington to San Diego, returning Wed, 25 Feb, priced at ฿15,270 found 5 days ago
American Airlines
Wed, 18 Feb - Wed, 25 Feb
IAD
Washington
SAN
San Diego
฿15,275 Return, found 5 days ago
฿15,275
Return
found 5 days ago
Select American Airlines flight, departing Wed, 18 Feb from Washington to San Diego, returning Wed, 25 Feb, priced at ฿15,275 found 5 days ago
American Airlines
Wed, 18 Feb - Wed, 25 Feb
IAD
Washington
SAN
San Diego
฿15,585 Return, found 5 days ago
฿15,585
Return
found 5 days ago
Select American Airlines flight, departing Wed, 18 Feb from Washington to San Diego, returning Wed, 25 Feb, priced at ฿15,585 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.
Flight from Washington to San Diego route information
Origin airport
Washington Dulles Intl.
Destination airport
San Diego Intl.
Return price
฿13,405
Distance
3598 km
Average flight time
2 hours 51 mins

Perfect flights from Washington to San Diego

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Washington to San Diego. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Washington Dulles Intl. to San Diego Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿8,110 and roundtrip prices from ฿13,405. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at San Diego Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in San Diego.

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 ฿13,405. 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.
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