Southwest® flights from San Diego to Washington, D.C. (Reagan National) from $164
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Low fares from San Diego to Washington, D.C. (Reagan National)
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San Diego (SAN)to
Washington, D.C. (Reagan National) (DCA)
Depart: 10/20/2026
One-way
Basic
From
$164
Seen: 5 hrs ago
San Diego (SAN)to
Washington, D.C. (Reagan National) (DCA)
Depart: 09/01/2026
One-way
Basic
From
$164
Seen: 1 hour ago
San Diego (SAN)to
Washington, D.C. (Reagan National) (DCA)
Depart: 09/12/2026
One-way
Basic
From
$164
Seen: 16 hrs ago
San Diego (SAN)to
Washington, D.C. (Reagan National) (DCA)
Depart: 09/08/2026
One-way
Basic
From
$164
Seen: 21 hrs ago
San Diego (SAN)to
Washington, D.C. (Reagan National) (DCA)
Depart: 09/23/2026
One-way
Basic
From
$164
Seen: 22 hrs ago
San Diego (SAN)to
Washington, D.C. (Reagan National) (DCA)
Depart: 09/05/2026
One-way
Basic
From
$164
Seen: 11 hrs ago
Explore flights from San Diego to Washington, D.C. (Reagan National)
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Flight Details
Departing from:
San Diego International Airport
Arriving at:
Ronald Reagan National Airport
Distance:
2276 miles
Route Information
154† Weekly flights
† Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.
‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.
Questions we hear the most
There are 154 weekly flights from San Diego to Washington, D.C. (Reagan National) on Southwest Airlines.
To find the lowest fares by day and time to fly San Diego to Washington, D.C. (Reagan National) with Southwest, check out our Low Fare Calendar.
You can rent a car at Ronald Reagan National Airport book yours with your flight.
Yes! Flights from San Diego to Washington, D.C. (Reagan National)—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
Check the status of your upcoming Southwest flight.
Check out the Southwest Airlines® Help Center for answers about everything Southwest.
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