Flights from Philadelphia to Alpine

Cheapest flights from Philadelphia

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, May 28 - Wed, Jun 4

PHL

Philadelphia Intl.

SFO

San Francisco Intl.

$210 Roundtrip, found 1 day ago

$210

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, May 28 from Philadelphia Intl. to San Francisco Intl., returning Wed, Jun 4, priced at $210 found 1 day ago

Thu, May 29 - Wed, Jun 4

PHL

Philadelphia Intl.

SFO

San Francisco Intl.

$220 Roundtrip, found 1 day ago

$220

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, May 29 from Philadelphia Intl. to San Francisco Intl., returning Wed, Jun 4, priced at $220 found 1 day ago

Wed, May 28 - Tue, Jun 3

PHL

Philadelphia Intl.

SFO

San Francisco Intl.

$228 Roundtrip, found 1 day ago

$228

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, May 28 from Philadelphia Intl. to San Francisco Intl., returning Tue, Jun 3, priced at $228 found 1 day ago

Thu, May 29 - Thu, Jun 5

PHL

Philadelphia Intl.

SFO

San Francisco Intl.

$230 Roundtrip, found 1 day ago

$230

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, May 29 from Philadelphia Intl. to San Francisco Intl., returning Thu, Jun 5, priced at $230 found 1 day ago

Wed, May 28 - Mon, Jun 2

PHL

Philadelphia Intl.

SFO

San Francisco Intl.

$231 Roundtrip, found 1 day ago

$231

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, May 28 from Philadelphia Intl. to San Francisco Intl., returning Mon, Jun 2, priced at $231 found 1 day ago

Sun, May 25 - Wed, Jun 4

PHL

Philadelphia Intl.

SFO

San Francisco Intl.

$238 Roundtrip, found 1 day ago

$238

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, May 25 from Philadelphia Intl. to San Francisco Intl., returning Wed, Jun 4, priced at $238 found 1 day ago

Thu, May 29 - Mon, Jun 2

PHL

Philadelphia Intl.

SFO

San Francisco Intl.

$241 Roundtrip, found 1 day ago

$241

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, May 29 from Philadelphia Intl. to San Francisco Intl., returning Mon, Jun 2, priced at $241 found 1 day ago

Tue, May 27 - Tue, Jun 3

PHL

Philadelphia Intl.

SFO

San Francisco Intl.

$246 Roundtrip, found 1 day ago

$246

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, May 27 from Philadelphia Intl. to San Francisco Intl., returning Tue, Jun 3, priced at $246 found 1 day ago

Sun, May 25 - Thu, Jun 5

PHL

Philadelphia Intl.

SFO

San Francisco Intl.

$248 Roundtrip, found 1 day ago

$248

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, May 25 from Philadelphia Intl. to San Francisco Intl., returning Thu, Jun 5, priced at $248 found 1 day ago

Tue, May 27 - Mon, Jun 2

PHL

Philadelphia Intl.

SFO

San Francisco Intl.

$249 Roundtrip, found 1 day ago

$249

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, May 27 from Philadelphia Intl. to San Francisco Intl., returning Mon, Jun 2, priced at $249 found 1 day ago

Wed, May 28 - Fri, Jun 6

PHL

Philadelphia Intl.

SFO

San Francisco Intl.

$250 Roundtrip, found 1 day ago

$250

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, May 28 from Philadelphia Intl. to San Francisco Intl., returning Fri, Jun 6, priced at $250 found 1 day ago

Sun, May 25 - Tue, Jun 3

PHL

Philadelphia Intl.

SFO

San Francisco Intl.

$256 Roundtrip, found 1 day ago

$256

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, May 25 from Philadelphia Intl. to San Francisco Intl., returning Tue, Jun 3, priced at $256 found 1 day ago

Sun, May 25 - Mon, Jun 2

PHL

Philadelphia Intl.

SFO

San Francisco Intl.

$259 Roundtrip, found 1 day ago

$259

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, May 25 from Philadelphia Intl. to San Francisco Intl., returning Mon, Jun 2, priced at $259 found 1 day ago

Mon, May 26 - Thu, Jun 5

PHL

Philadelphia Intl.

SFO

San Francisco Intl.

$319 Roundtrip, found 1 day ago

$319

Roundtrip

found 1 day ago

Select United flight, departing Mon, May 26 from Philadelphia Intl. to San Francisco Intl., returning Thu, Jun 5, priced at $319 found 1 day ago

Mon, May 26 - Thu, Jun 5

PHL

Philadelphia Intl.

SFO

San Francisco Intl.

$364 Roundtrip, found 1 day ago

$364

Roundtrip

found 1 day ago

Select American Airlines flight, departing Mon, May 26 from Philadelphia Intl. to San Francisco Intl., returning Thu, Jun 5, priced at $364 found 1 day ago

Wed, Jun 11 - Wed, Jun 18

ABE

Lehigh Valley Intl.

SFO

San Francisco Intl.

$417 Roundtrip, found 4 days ago

$417

Roundtrip

found 4 days ago

Select United flight, departing Wed, Jun 11 from Lehigh Valley Intl. to San Francisco Intl., returning Wed, Jun 18, priced at $417 found 4 days ago

Sat, Jun 21 - Sat, Jun 28

PHL

Philadelphia Intl.

STS

Sonoma County

$529 Roundtrip, found 5 days ago

$529

Roundtrip

found 5 days ago

Select American Airlines flight, departing Sat, Jun 21 from Philadelphia Intl. to Sonoma County, returning Sat, Jun 28, priced at $529 found 5 days ago

Mon, May 26 - Thu, Jun 5

PHL

Philadelphia Intl.

SFO

San Francisco Intl.

$589 Roundtrip, found 1 day ago

$589

Roundtrip

found 1 day ago

Select Delta flight, departing Mon, May 26 from Philadelphia Intl. to San Francisco Intl., returning Thu, Jun 5, priced at $589 found 1 day ago

Mon, May 26 - Thu, Jun 5

PHL

Philadelphia Intl.

SFO

San Francisco Intl.

$589 Roundtrip, found 1 day ago

$589

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Mon, May 26 from Philadelphia Intl. to San Francisco Intl., returning Thu, Jun 5, priced at $589 found 1 day ago

Fri, Jun 20 - Mon, Jun 30

PHL

Philadelphia Intl.

STS

Sonoma County

$668 Roundtrip, found 5 days ago

$668

Roundtrip

found 5 days ago

Select Alaska Airlines flight, departing Fri, Jun 20 from Philadelphia Intl. to Sonoma County, returning Mon, Jun 30, priced at $668 found 5 days ago