S$178 Cheap Flights from Washington to San Diego

View S$178 flight on Sat, 18 Oct, 2025Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to San Diego Intl. Airport (SAN)

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Cheap Flights from Washington to San Diego (DCA-SAN)

Prices were available within the past 7 days and start at S$178 for one-way flights and S$1,048 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, 22 Nov - Sat, 29 Nov
DCA
Washington
SAN
San Diego
S$1,048 Return, found 1 day ago
S$1,048
Return
found 1 day ago
Select American Airlines flight, departing Sat, 22 Nov from Washington to San Diego, returning Sat, 29 Nov, priced at S$1,048 found 1 day ago
American Airlines
Sat, 22 Nov - Sat, 29 Nov
DCA
Washington
SAN
San Diego
S$1,065 Return, found 1 day ago
S$1,065
Return
found 1 day ago
Select American Airlines flight, departing Sat, 22 Nov from Washington to San Diego, returning Sat, 29 Nov, priced at S$1,065 found 1 day ago
United
Sat, 22 Nov - Sat, 29 Nov
DCA
Washington
SAN
San Diego
S$1,103 Return, found 1 day ago
S$1,103
Return
found 1 day ago
Select United flight, departing Sat, 22 Nov from Washington to San Diego, returning Sat, 29 Nov, priced at S$1,103 found 1 day ago
American Airlines
Sat, 22 Nov - Sat, 29 Nov
DCA
Washington
SAN
San Diego
S$1,105 Return, found 1 day ago
S$1,105
Return
found 1 day ago
Select American Airlines flight, departing Sat, 22 Nov from Washington to San Diego, returning Sat, 29 Nov, priced at S$1,105 found 1 day ago
American Airlines
Sat, 22 Nov - Sat, 29 Nov
DCA
Washington
SAN
San Diego
S$1,111 Return, found 1 day ago
S$1,111
Return
found 1 day ago
Select American Airlines flight, departing Sat, 22 Nov from Washington to San Diego, returning Sat, 29 Nov, priced at S$1,111 found 1 day ago
Delta
Sat, 22 Nov - Sat, 29 Nov
DCA
Washington
SAN
San Diego
S$1,117 Return, found 1 day ago
S$1,117
Return
found 1 day ago
Select Delta flight, departing Sat, 22 Nov from Washington to San Diego, returning Sat, 29 Nov, priced at S$1,117 found 1 day ago
United
Sat, 22 Nov - Sat, 29 Nov
DCA
Washington
SAN
San Diego
S$1,130 Return, found 1 day ago
S$1,130
Return
found 1 day ago
Select United flight, departing Sat, 22 Nov from Washington to San Diego, returning Sat, 29 Nov, priced at S$1,130 found 1 day ago

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

January is typically the cheapest month to fly

From S$177 - S$448 per traveller.
Washington to San Diego route information
Origin airport
Ronald Reagan Washington National
Destination airport
San Diego Intl.
Airlines serving
American Airlines
Return price
S$1,047
Distance
3633 km
Average flight time
3 hours 59 mins

Perfect flights from Washington to San Diego

Your Journey from Washington to San Diego

Start your unforgettable journey with Expedia. Our broad selection of flights from Washington to San Diego caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Delta, American Airlines, United. Our selection of flights from Ronald Reagan Washington National to San Diego Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Washington to San Diego Flights

Experience the joy of finding cheap flights from Ronald Reagan Washington National to San Diego Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$178 and roundtrip prices from S$1,048*.
 

Pre-Flight Essentials

Ensure a smooth journey from Washington to San Diego with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant San Diego

Picture yourself stepping off the plane in San Diego and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Washington to San Diego Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Washington to San Diego.
 

Beyond the Flight – Exploring San Diego

With Expedia, your adventure extends beyond the flight. Explore San Diego at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Washington to San Diego with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Washington to San Diego with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from National Airport to San Diego Intl. Airport (SAN)?
Start packing your suitcase, because round-trip journeys between Ronald Reagan Washington National Airport (DCA) and San Diego Intl. Airport (SAN) start from S$1,048. That's based on fares advertised within the last 7 days on Expedia for flights departing within the next year. Prices can go up quickly, so book today to secure the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from DCA to San Diego Intl. Airport (SAN)?
Most flights can be cancelled online, but each air carrier has its own terms and conditions. If you do decide to cancel your flight, check out our Customer Service Portal and follow the instructions.
How do I find cheap flights from National Airport to San Diego Intl. Airport (SAN) 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 Ronald Reagan Washington National Airport (DCA) to San Diego Intl. Airport (SAN) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from DCA to San Diego Airport?
The flight distance from Arlington to San Diego is 3,700 kilometres. Pack yourself a drink, some snacks and a good book to read. Keep yourself entertained and the time will fly by.
Which airlines fly direct from Ronald Reagan Washington National Airport (DCA) to San Diego Airport?
You won't find any airlines flying directly between DCA and San Diego Intl. Airport (SAN), so be ready to make at least one stop on your journey. A layover can be a nice way to break up a trip!
Are National Airport to San Diego Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to find a fantastic last-minute deal from DCA to San Diego Intl. Airport (SAN), but it's also possible to miss out entirely! As many airlines release seats up to 12 months in advance, it's worthwhile keeping an eye on fares early and being ready to pounce when you spot a bargain. Expedia compares air carrier prices and updates flight deals all the time, so you can be certain you're always getting the latest offers.

Explore a world of travel with Expedia

*Available to Expedia members.