Cheap Flights from Philadelphia to San Diego
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Deals from
Philadelphia
RatePunk searches hundreds of travel sites at once for deals on flights to San Diego
Prices updated 1 day ago
461 airlines compared
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Fares are subject to change and may not be available for all dates. (Data last updated Sep 14, 2026.)
Today’s best flight deals from Philadelphia to San Diego
Explore current cheapest deals departing from Philadelphia to San Diego
2026-10-18 – 2026-10-21
PHL - San Diego
84% AI deal score
$364
$231
Round trip
2026-10-13 – 2026-10-19
PHL - San Diego
84% AI deal score
$347
$231
Round trip
2026-10-09 – 2026-10-14
PHL - San Diego
84% AI deal score
$359
$237
Round trip
2026-10-17 – 2026-10-22
PHL - San Diego
83% AI deal score
$357
$237
Round trip
2026-10-22 – 2026-10-26
PHL - San Diego
84% AI deal score
$363
$237
Round trip
2026-10-19 – 2026-10-26
PHL - San Diego
82% AI deal score
$345
$242
Round trip
2026-10-16 – 2026-10-21
PHL - San Diego
82% AI deal score
$359
$248
Round trip
2026-10-14 – 2026-10-20
PHL - San Diego
81% AI deal score
$347
$252
Round trip
2026-10-21 – 2026-10-28
PHL - San Diego
80% AI deal score
$346
$260
Round trip
2026-11-03 – 2026-11-10
PHL - San Diego
73% AI deal score
$300
$261
Round trip
