S$177 Cheap Flights from San Diego to Washington

View S$177 flight on Sat, 23 Aug, 2025Opens in a new window

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

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 40% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at S$177 for one-way flights and S$353 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 23 Aug - Sat, 30 Aug
SAN
San Diego
DCA
Washington
S$353 Return, found 5 days ago
S$353
Return
found 5 days ago
Select Delta flight, departing Sat, 23 Aug from San Diego to Washington, returning Sat, 30 Aug, priced at S$353 found 5 days ago
United
Sat, 23 Aug - Sat, 30 Aug
SAN
San Diego
DCA
Washington
S$424 Return, found 5 days ago
S$424
Return
found 5 days ago
Select United flight, departing Sat, 23 Aug from San Diego to Washington, returning Sat, 30 Aug, priced at S$424 found 5 days ago
Delta
Sat, 28 Feb - Sun, 1 Mar
SAN
San Diego
DCA
Washington
S$429 Return, found 5 days ago
S$429
Return
found 5 days ago
Select Delta flight, departing Sat, 28 Feb from San Diego to Washington, returning Sun, 1 Mar, priced at S$429 found 5 days ago
United
Sat, 23 Aug - Sat, 30 Aug
SAN
San Diego
DCA
Washington
S$449 Return, found 5 days ago
S$449
Return
found 5 days ago
Select United flight, departing Sat, 23 Aug from San Diego to Washington, returning Sat, 30 Aug, priced at S$449 found 5 days ago
American Airlines
Sat, 23 Aug - Sat, 30 Aug
SAN
San Diego
DCA
Washington
S$455 Return, found 5 days ago
S$455
Return
found 5 days ago
Select American Airlines flight, departing Sat, 23 Aug from San Diego to Washington, returning Sat, 30 Aug, priced at S$455 found 5 days ago
Delta
Sat, 28 Feb - Sun, 1 Mar
SAN
San Diego
DCA
Washington
S$495 Return, found 5 days ago
S$495
Return
found 5 days ago
Select Delta flight, departing Sat, 28 Feb from San Diego to Washington, returning Sun, 1 Mar, priced at S$495 found 5 days ago
American Airlines
Sat, 23 Aug - Sat, 30 Aug
SAN
San Diego
DCA
Washington
S$506 Return, found 5 days ago
S$506
Return
found 5 days ago
Select American Airlines flight, departing Sat, 23 Aug from San Diego to Washington, returning Sat, 30 Aug, priced at S$506 found 5 days ago
United
Sat, 23 Aug - Sat, 30 Aug
SAN
San Diego
DCA
Washington
S$519 Return, found 5 days ago
S$519
Return
found 5 days ago
Select United flight, departing Sat, 23 Aug from San Diego to Washington, returning Sat, 30 Aug, priced at S$519 found 5 days ago
Delta
Sat, 28 Feb - Sun, 1 Mar
SAN
San Diego
DCA
Washington
S$520 Return, found 5 days ago
S$520
Return
found 5 days ago
Select Delta flight, departing Sat, 28 Feb from San Diego to Washington, returning Sun, 1 Mar, priced at S$520 found 5 days ago
Delta
Sat, 28 Feb - Sun, 1 Mar
SAN
San Diego
DCA
Washington
S$545 Return, found 5 days ago
S$545
Return
found 5 days ago
Select Delta flight, departing Sat, 28 Feb from San Diego to Washington, returning Sun, 1 Mar, priced at S$545 found 5 days ago

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

January is typically the cheapest month to fly

From S$176 - S$468 per traveller.

Graph displaying average flight prices per month

San Diego to Washington route information
Origin airport
San Diego Intl.
Destination airport
Ronald Reagan Washington National
Return price
S$352
Distance
3633 km
Average flight time
9 hours 5 mins

Perfect flights from San Diego to Washington

Your Journey from San Diego to Washington

Start your unforgettable journey with Expedia. Our broad selection of flights from San Diego to Washington 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, United, American Airlines, Alaska Airlines. Our selection of flights from San Diego Intl. to Ronald Reagan Washington National 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 San Diego to Washington Flights

Experience the joy of finding cheap flights from San Diego Intl. to Ronald Reagan Washington National that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$177 and roundtrip prices from S$353*.
 

Pre-Flight Essentials

Ensure a smooth journey from San Diego to Washington 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 Washington

Picture yourself stepping off the plane in Washington 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 San Diego to Washington 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 San Diego to Washington.
 

Beyond the Flight – Exploring Washington

With Expedia, your adventure extends beyond the flight. Explore Washington 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 San Diego to Washington 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 San Diego to Washington 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 San Diego Intl. Airport (SAN) to Ronald Reagan Washington National Airport (DCA)?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price available for a round-trip flight from SAN to National Airport was S$353. Fares this good don't last long, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from San Diego Intl. Airport (SAN) to Ronald Reagan Washington National Airport (DCA)?
Every air carrier has its own terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.
How do I find cheap flights from SAN to National 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 San Diego Intl. Airport (SAN) to National Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from SAN to DCA?
The flight distance from San Diego Airport to National Airport is 3,700 kilometres. Pack yourself a snack, a drink and a good movie. Keep yourself occupied and the hours will zip by.
Which airlines fly direct from SAN to Ronald Reagan Washington National Airport (DCA)?
Unfortunately, there aren't any airlines that fly direct between San Diego Intl. Airport (SAN) and Ronald Reagan Washington National Airport (DCA). You'll need to book a flight with at least one stop.
Are SAN to Ronald Reagan Washington National Airport (DCA) flight tickets cheaper when they're purchased at the last minute?
Flight tickets from SAN to National Airport are available up to a year prior to departure on Expedia. And although you may score fantastic last-minute deals, it's not something you should bank on. Also, booking your flights in advance means you'll have more options --- and you can avoid being wedged in the dreaded middle seat! We frequently update our fares to bring you the best bargains, so keep checking in for all the latest specials.

Explore a world of travel with Expedia

Washington Airports

Washington

Baltimore

San Diego Airports

Carlsbad

*Available to Expedia members.