$65 Cheap Flights from San Diego (SAN) to Washington (DCA)

View $65 flight on Sat, Nov 15, 2025Opens 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 $65 for one-way flights and $130 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Dec 11 - Mon, Dec 15
SAN
San Diego
DCA
Washington
$130 Roundtrip, found 6 hours ago
$130
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Thu, Dec 11 from San Diego to Washington, returning Mon, Dec 15, priced at $130 found 6 hours ago
Frontier Airlines
Wed, Dec 3 - Thu, Dec 4
SAN
San Diego
DCA
Washington
$140 Roundtrip, just found
$140
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Dec 3 from San Diego to Washington, returning Thu, Dec 4, priced at $140 just found
Frontier Airlines
Mon, Nov 17 - Wed, Dec 17
SAN
San Diego
DCA
Washington
$150 Roundtrip, found 3 hours ago
$150
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Mon, Nov 17 from San Diego to Washington, returning Wed, Dec 17, priced at $150 found 3 hours ago
Frontier Airlines
Wed, Dec 3 - Thu, Dec 4
SAN
San Diego
DCA
Washington
$160 Roundtrip, just found
$160
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Dec 3 from San Diego to Washington, returning Thu, Dec 4, priced at $160 just found
Southwest Airlines
Wed, Dec 10 - Tue, Dec 16
SAN
San Diego
DCA
Washington
$165 Roundtrip, found 4 days ago
$165
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Wed, Dec 10 from San Diego to Washington, returning Tue, Dec 16, priced at $165 found 4 days ago
Frontier Airlines
Thu, Dec 11 - Mon, Dec 15
SAN
San Diego
DCA
Washington
$168 Roundtrip, found 6 hours ago
$168
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Thu, Dec 11 from San Diego to Washington, returning Mon, Dec 15, priced at $168 found 6 hours ago
Frontier Airlines
Thu, Dec 11 - Mon, Dec 15
SAN
San Diego
DCA
Washington
$170 Roundtrip, found 6 hours ago
$170
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Thu, Dec 11 from San Diego to Washington, returning Mon, Dec 15, priced at $170 found 6 hours ago
Alaska Airlines
Sat, Dec 6 - Sat, Dec 13
SAN
San Diego
DCA
Washington
$204 Roundtrip, just found
$204
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Dec 6 from San Diego to Washington, returning Sat, Dec 13, priced at $204 just found
JetBlue Airways
Tue, Feb 24 - Sat, Feb 28
SAN
San Diego
DCA
Washington
$233 Roundtrip, found 3 days ago
$233
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Tue, Feb 24 from San Diego to Washington, returning Sat, Feb 28, priced at $233 found 3 days ago
Delta
Sat, Jan 31 - Tue, Feb 3
SAN
San Diego
DCA
Washington
$257 Roundtrip, just found
$257
Roundtrip
just found
Select Delta flight, departing Sat, Jan 31 from San Diego to Washington, returning Tue, Feb 3, priced at $257 just found

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

January is typically the cheapest month to fly

From $138 - $368 per traveler.

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Baltimore Washington Intl. Thurgood Marshall BWI. Average driving time to city center is 40 minutes. Flights from $391
BWI
Baltimore Washington Intl. Thurgood Marshall
Average driving time to city center40 min
Flights from $391

Frequently asked questions

How much does a flight from San Diego Intl. Airport (SAN) to Ronald Reagan Washington National Airport (DCA) cost?
Lock in a cheap one-way flight from $65 or cheap return flight from $130 from San Diego Intl. Airport (SAN) to Ronald Reagan Washington National Airport (DCA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from San Diego Intl. Airport (SAN) to Ronald Reagan Washington National Airport (DCA)?
The cheapest month to fly from SAN to DCA is December, when demand is low. Off-peak months are typically when better flight deals are available between these airports.
What is the cheapest airline that flies from San Diego Intl. Airport (SAN) to Ronald Reagan Washington National Airport (DCA)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest SAN to DCA flight.
How many flights per day from San Diego Intl. Airport (SAN) to Ronald Reagan Washington National Airport (DCA)?
Direct flights from San Diego Intl. Airport (SAN) to Ronald Reagan Washington National Airport (DCA) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SAN to DCA?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Diego Intl. Airport (SAN) to Ronald Reagan Washington National Airport (DCA)?
To avoid potential delays on the San Diego Intl. Airport (SAN) to Ronald Reagan Washington National Airport (DCA) route, aim to travel before 3 PM. Later flights have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Washington from San Diego Intl. Airport (SAN)?
Hop on a direct flight from San Diego Intl. Airport (SAN) to Washington and land at Washington Dulles Intl. Airport (IAD). An alternative point of entry into the city is Baltimore Washington Intl. Thurgood Marshall Airport (BWI).
Is it cheaper to buy a plane ticket from San Diego Intl. Airport (SAN) to Ronald Reagan Washington National Airport (DCA) last-minute?
Waiting until right before your break to book a flight from SAN to DCA generally means paying more. While you might find some last-minute deals, they aren't always guaranteed. Allow some flexibility in your schedule for a better chance of scoring a bargain.
Is it cheaper to book a SAN to DCA flight and hotel package?
Booking a SAN to DCA flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Select from our impressive range of accommodations and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Diego Intl. Airport (SAN) to Ronald Reagan Washington National Airport (DCA)?
It's generally possible to cancel or reschedule your SAN to DCA flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
San Diego Intl.
Destination airport
Ronald Reagan Washington National
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, United
Roundtrip price
$130
Distance
2271 mi
Average flight time
9 hours 25 mins

Book with confidence

San Diego to Washington Flights

The cheapest times to fly from San Diego to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Diego to Washington are during the month of December. You can find some of the cheapest flights from San Diego to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Diego to Washington

Sunday is one of the best days to book for cheap flights from San Diego to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Diego to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Diego to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $65 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Diego to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Diego to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Diego to Washington Flights

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*Available to One Key members.