Cheap Flights from Philadelphia to Palo Alto

View €95 flight on Wed, 13 Aug 2025Opens in a new window

Popular airlines from Philadelphia to Palo Alto

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Cheap flights from Philadelphia to Palo Alto (ILG-SJC)

Prices were available within the past 7 days and start at €95 for one-way flights and €248 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, 16 Aug - Fri, 22 Aug
PHL
Philadelphia
SFO
San Francisco
€248 Return, found 14 hours ago
€248
Return
found 14 hours ago
Select American Airlines flight, departing Sat, 16 Aug from Philadelphia to San Francisco, returning Fri, 22 Aug, priced at €248 found 14 hours ago
Delta
Sat, 16 Aug - Fri, 22 Aug
PHL
Philadelphia
SFO
San Francisco
€250 Return, found 14 hours ago
€250
Return
found 14 hours ago
Select Delta flight, departing Sat, 16 Aug from Philadelphia to San Francisco, returning Fri, 22 Aug, priced at €250 found 14 hours ago
Delta
Sat, 16 Aug - Fri, 22 Aug
PHL
Philadelphia
SFO
San Francisco
€258 Return, found 14 hours ago
€258
Return
found 14 hours ago
Select Delta flight, departing Sat, 16 Aug from Philadelphia to San Francisco, returning Fri, 22 Aug, priced at €258 found 14 hours ago
Delta
Thu, 7 Aug - Wed, 13 Aug
PHL
Philadelphia
SFO
San Francisco
€265 Return, found 1 day ago
€265
Return
found 1 day ago
Select Delta flight, departing Thu, 7 Aug from Philadelphia to San Francisco, returning Wed, 13 Aug, priced at €265 found 1 day ago
United
Thu, 7 Aug - Wed, 13 Aug
PHL
Philadelphia
SFO
San Francisco
€333 Return, found 1 day ago
€333
Return
found 1 day ago
Select United flight, departing Thu, 7 Aug from Philadelphia to San Francisco, returning Wed, 13 Aug, priced at €333 found 1 day ago
JetBlue Airways
Thu, 7 Aug - Wed, 13 Aug
PHL
Philadelphia
SFO
San Francisco
€448 Return, found 1 day ago
€448
Return
found 1 day ago
Select JetBlue Airways flight, departing Thu, 7 Aug from Philadelphia to San Francisco, returning Wed, 13 Aug, priced at €448 found 1 day ago

Find the cheapest month to fly from Philadelphia (PHL) to San Francisco (SFO)

February is typically the cheapest month to fly

From €119 - €385 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.