Cheap flights from Philadelphia to Menlo Park

View AU$236 flight on Tue, 30 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.

American Airlines
Mon, 1 Sep. - Mon, 8 Sep.
PHL
Philadelphia
SFO
San Francisco
AU$444 Return, found 6 days ago
AU$444
Return
found 6 days ago
Select American Airlines flight, departing Mon, 1 Sep. from Philadelphia to San Francisco, returning Mon, 8 Sep., priced at AU$444 found 6 days ago
American Airlines
Thu, 16 Oct. - Mon, 20 Oct.
PHL
Philadelphia
SFO
San Francisco
AU$447 Return, found 4 days ago
AU$447
Return
found 4 days ago
Select American Airlines flight, departing Thu, 16 Oct. from Philadelphia to San Francisco, returning Mon, 20 Oct., priced at AU$447 found 4 days ago
Delta
Thu, 16 Oct. - Mon, 20 Oct.
PHL
Philadelphia
SFO
San Francisco
AU$476 Return, found 4 days ago
AU$476
Return
found 4 days ago
Select Delta flight, departing Thu, 16 Oct. from Philadelphia to San Francisco, returning Mon, 20 Oct., priced at AU$476 found 4 days ago
Alaska Airlines
Thu, 16 Oct. - Mon, 20 Oct.
PHL
Philadelphia
SFO
San Francisco
AU$477 Return, found 4 days ago
AU$477
Return
found 4 days ago
Select Alaska Airlines flight, departing Thu, 16 Oct. from Philadelphia to San Francisco, returning Mon, 20 Oct., priced at AU$477 found 4 days ago
American Airlines
Thu, 14 Aug. - Sun, 17 Aug.
PHL
Philadelphia
SFO
San Francisco
AU$493 Return, found 4 days ago
AU$493
Return
found 4 days ago
Select American Airlines flight, departing Thu, 14 Aug. from Philadelphia to San Francisco, returning Sun, 17 Aug., priced at AU$493 found 4 days ago
United
Thu, 16 Oct. - Mon, 20 Oct.
PHL
Philadelphia
SJC
San Jose
AU$1,136 Return, found 4 days ago
AU$1,136
Return
found 4 days ago
Select United flight, departing Thu, 16 Oct. from Philadelphia to San Jose, returning Mon, 20 Oct., priced at AU$1,136 found 4 days 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.