Cheap flights from Philadelphia to Menlo Park

View AU$211 flight on Mon, 8 Sep. 2025Opens in a new window

Popular airlines from Philadelphia to Menlo Park

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Cheap Flights from Philadelphia (ILG) to Menlo Park (SJC)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, 8 Sep. - Mon, 15 Sep.
PHL
Philadelphia
SJC
San Jose
AU$421 Return, found 1 day ago
AU$421
Return
found 1 day ago
Select Delta flight, departing Mon, 8 Sep. from Philadelphia to San Jose, returning Mon, 15 Sep., priced at AU$421 found 1 day ago
American Airlines
Thu, 6 Nov. - Wed, 12 Nov.
PHL
Philadelphia
SFO
San Francisco
AU$438 Return, found 8 hours ago
AU$438
Return
found 8 hours ago
Select American Airlines flight, departing Thu, 6 Nov. from Philadelphia to San Francisco, returning Wed, 12 Nov., priced at AU$438 found 8 hours ago
Delta
Mon, 8 Sep. - Mon, 15 Sep.
PHL
Philadelphia
SJC
San Jose
AU$452 Return, found 1 day ago
AU$452
Return
found 1 day ago
Select Delta flight, departing Mon, 8 Sep. from Philadelphia to San Jose, returning Mon, 15 Sep., priced at AU$452 found 1 day ago
Alaska Airlines
Wed, 24 Sep. - Mon, 6 Oct.
PHL
Philadelphia
SFO
San Francisco
AU$468 Return, found 14 hours ago
AU$468
Return
found 14 hours ago
Select Alaska Airlines flight, departing Wed, 24 Sep. from Philadelphia to San Francisco, returning Mon, 6 Oct., priced at AU$468 found 14 hours ago
Hawaiian Airlines
Tue, 16 Sep. - Tue, 30 Sep.
PHL
Philadelphia
SFO
San Francisco
AU$468 Return, found 14 hours ago
AU$468
Return
found 14 hours ago
Select Hawaiian Airlines flight, departing Tue, 16 Sep. from Philadelphia to San Francisco, returning Tue, 30 Sep., priced at AU$468 found 14 hours ago
JetBlue Airways
Sat, 20 Sep. - Mon, 6 Oct.
PHL
Philadelphia
SFO
San Francisco
AU$495 Return, found 14 hours ago
AU$495
Return
found 14 hours ago
Select JetBlue Airways flight, departing Sat, 20 Sep. from Philadelphia to San Francisco, returning Mon, 6 Oct., priced at AU$495 found 14 hours ago

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

May is typically the cheapest month to fly

From AU$215 - AU$645 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.