Cheap Flights from Washington to Carlsbad

View €68 flight on Sat, 23 Aug 2025Opens in a new window

Popular airlines from Washington to Carlsbad

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Cheap flights from Washington to Carlsbad (WAS-SAN)

Prices were available within the past 7 days and start at €68 for one-way flights and €135 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, 23 Aug - Sat, 30 Aug
IAD
Washington
SAN
San Diego
€135 Return, found 7 hours ago
€135
Return
found 7 hours ago
Select American Airlines flight, departing Sat, 23 Aug from Washington to San Diego, returning Sat, 30 Aug, priced at €135 found 7 hours ago
American Airlines
Sat, 23 Aug - Sat, 30 Aug
DCA
Washington
SAN
San Diego
€135 Return, found 7 hours ago
€135
Return
found 7 hours ago
Select American Airlines flight, departing Sat, 23 Aug from Washington to San Diego, returning Sat, 30 Aug, priced at €135 found 7 hours ago
American Airlines
Mon, 18 Aug - Fri, 22 Aug
DCA
Washington
SAN
San Diego
€151 Return, found 1 day ago
€151
Return
found 1 day ago
Select American Airlines flight, departing Mon, 18 Aug from Washington to San Diego, returning Fri, 22 Aug, priced at €151 found 1 day ago
Delta
Mon, 18 Aug - Fri, 22 Aug
DCA
Washington
SAN
San Diego
€201 Return, found 1 day ago
€201
Return
found 1 day ago
Select Delta flight, departing Mon, 18 Aug from Washington to San Diego, returning Fri, 22 Aug, priced at €201 found 1 day ago
United
Wed, 8 Oct - Tue, 14 Oct
DCA
Washington
SAN
San Diego
€237 Return, found 12 hours ago
€237
Return
found 12 hours ago
Select United flight, departing Wed, 8 Oct from Washington to San Diego, returning Tue, 14 Oct, priced at €237 found 12 hours ago
JetBlue Airways
Mon, 18 Aug - Sat, 23 Aug
DCA
Washington
SAN
San Diego
€241 Return, found 5 days ago
€241
Return
found 5 days ago
Select JetBlue Airways flight, departing Mon, 18 Aug from Washington to San Diego, returning Sat, 23 Aug, priced at €241 found 5 days ago

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

August is typically the cheapest month to fly

From €94 - €211 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.