$178 Cheap Alaska Airlines flights Washington (DCA) to San Diego (SAN)

View $178 flight on Wed, Jan 21, 2026Opens in a new window

$178 Cheap Alaska Airlines flights Washington (DCA) to San Diego (SAN)

Prices were available within the past 7 days and start at $178 for one-way flights and $310 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Fri, Jan 30 - Sun, Feb 8
DCA
Washington
SAN
San Diego
$310 Roundtrip, found 11 hours ago
$310
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Fri, Jan 30 from Washington to San Diego, returning Sun, Feb 8, priced at $310 found 11 hours ago
Alaska Airlines
Fri, Jan 30 - Sun, Feb 8
DCA
Washington
SAN
San Diego
$378 Roundtrip, found 11 hours ago
$378
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Fri, Jan 30 from Washington to San Diego, returning Sun, Feb 8, priced at $378 found 11 hours ago

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

January is typically the cheapest month to fly

From $134 - $308 per traveler.
Flights from Washington (DCA) to San Diego (SAN)
Origin airport
Ronald Reagan Washington National
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, United
Popular airline
Frontier Airlines
Distance
3633 km
Average flight time
4 hours 15 mins