Cheap Flights from Philadelphia to Carlsbad

View €113 flight on Mon, 18 Aug 2025Opens in a new window

Popular airlines from Philadelphia to Carlsbad

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Cheap flights from Philadelphia to Carlsbad (ILG-SAN)

Prices were available within the past 7 days and start at €113 for one-way flights and €237 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, 8 Oct - Mon, 13 Oct
PHL
Philadelphia
SAN
San Diego
€237 Return, found 4 days ago
€237
Return
found 4 days ago
Select American Airlines flight, departing Wed, 8 Oct from Philadelphia to San Diego, returning Mon, 13 Oct, priced at €237 found 4 days ago
American Airlines
Wed, 8 Oct - Mon, 13 Oct
PHL
Philadelphia
SAN
San Diego
€237 Return, found 4 days ago
€237
Return
found 4 days ago
Select American Airlines flight, departing Wed, 8 Oct from Philadelphia to San Diego, returning Mon, 13 Oct, priced at €237 found 4 days ago
Delta
Wed, 8 Oct - Mon, 13 Oct
PHL
Philadelphia
SAN
San Diego
€243 Return, found 4 days ago
€243
Return
found 4 days ago
Select Delta flight, departing Wed, 8 Oct from Philadelphia to San Diego, returning Mon, 13 Oct, priced at €243 found 4 days ago
JetBlue Airways
Wed, 8 Oct - Mon, 13 Oct
PHL
Philadelphia
SAN
San Diego
€259 Return, found 4 days ago
€259
Return
found 4 days ago
Select JetBlue Airways flight, departing Wed, 8 Oct from Philadelphia to San Diego, returning Mon, 13 Oct, priced at €259 found 4 days ago
JetBlue Airways
Mon, 18 Aug - Fri, 22 Aug
PHL
Philadelphia
SAN
San Diego
€274 Return, found 4 days ago
€274
Return
found 4 days ago
Select JetBlue Airways flight, departing Mon, 18 Aug from Philadelphia to San Diego, returning Fri, 22 Aug, priced at €274 found 4 days ago
United
Wed, 8 Oct - Mon, 13 Oct
PHL
Philadelphia
SAN
San Diego
€320 Return, found 4 days ago
€320
Return
found 4 days ago
Select United flight, departing Wed, 8 Oct from Philadelphia to San Diego, returning Mon, 13 Oct, priced at €320 found 4 days ago

Find the cheapest month to fly from Philadelphia (PHL) to San Diego (SAN)

September is typically the cheapest month to fly

From €94 - €200 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.