S$166 Cheap Flights from San Diego to Washington

View S$166 flight on Sat, 7 Mar, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at S$166 for one-way flights and S$344 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, 9 Mar - Tue, 17 Mar
SAN
San Diego
DCA
Washington
S$344 Return, found 2 days ago
S$344
Return
found 2 days ago
Select Delta flight, departing Mon, 9 Mar from San Diego to Washington, returning Tue, 17 Mar, priced at S$344 found 2 days ago
Delta
Mon, 9 Mar - Tue, 17 Mar
SAN
San Diego
DCA
Washington
S$396 Return, found 2 days ago
S$396
Return
found 2 days ago
Select Delta flight, departing Mon, 9 Mar from San Diego to Washington, returning Tue, 17 Mar, priced at S$396 found 2 days ago
Delta
Sat, 7 Mar - Tue, 17 Mar
SAN
San Diego
DCA
Washington
S$398 Return, found 15 hours ago
S$398
Return
found 15 hours ago
Select Delta flight, departing Sat, 7 Mar from San Diego to Washington, returning Tue, 17 Mar, priced at S$398 found 15 hours ago
Delta
Sat, 7 Mar - Tue, 17 Mar
SAN
San Diego
DCA
Washington
S$410 Return, found 15 hours ago
S$410
Return
found 15 hours ago
Select Delta flight, departing Sat, 7 Mar from San Diego to Washington, returning Tue, 17 Mar, priced at S$410 found 15 hours ago
United
Mon, 9 Mar - Tue, 17 Mar
SAN
San Diego
DCA
Washington
S$434 Return, found 2 days ago
S$434
Return
found 2 days ago
Select United flight, departing Mon, 9 Mar from San Diego to Washington, returning Tue, 17 Mar, priced at S$434 found 2 days ago
American Airlines
Mon, 9 Mar - Tue, 17 Mar
SAN
San Diego
DCA
Washington
S$446 Return, found 2 days ago
S$446
Return
found 2 days ago
Select American Airlines flight, departing Mon, 9 Mar from San Diego to Washington, returning Tue, 17 Mar, priced at S$446 found 2 days ago
Delta
Mon, 9 Mar - Tue, 17 Mar
SAN
San Diego
DCA
Washington
S$448 Return, found 2 days ago
S$448
Return
found 2 days ago
Select Delta flight, departing Mon, 9 Mar from San Diego to Washington, returning Tue, 17 Mar, priced at S$448 found 2 days ago
Delta
Sat, 7 Mar - Tue, 17 Mar
SAN
San Diego
DCA
Washington
S$450 Return, found 15 hours ago
S$450
Return
found 15 hours ago
Select Delta flight, departing Sat, 7 Mar from San Diego to Washington, returning Tue, 17 Mar, priced at S$450 found 15 hours ago
Delta
Mon, 9 Mar - Tue, 17 Mar
SAN
San Diego
DCA
Washington
S$461 Return, found 2 days ago
S$461
Return
found 2 days ago
Select Delta flight, departing Mon, 9 Mar from San Diego to Washington, returning Tue, 17 Mar, priced at S$461 found 2 days ago
United
Sat, 7 Mar - Tue, 17 Mar
SAN
San Diego
DCA
Washington
S$461 Return, found 15 hours ago
S$461
Return
found 15 hours ago
Select United flight, departing Sat, 7 Mar from San Diego to Washington, returning Tue, 17 Mar, priced at S$461 found 15 hours ago

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

January is typically the cheapest month to fly

From S$168 - S$477 per traveller.

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$344. 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.

Travel information

Origin airport
San Diego Intl.
Destination airport
Ronald Reagan Washington National
Airlines serving
American Airlines, Delta, United
Return price
S$343
Distance
3633 km
Average flight time
9 hours 8 mins

Book with confidence

Perfect flights from San Diego to Washington

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

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