Flights from Philadelphia to San Sebastian

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.

Sun, Aug 17 - Thu, Aug 21

PHL

Philadelphia Intl.

SJU

Luis Munoz Marin Intl.

$184 Roundtrip, found 1 day ago

$184

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sun, Aug 17 from Philadelphia Intl. to Luis Munoz Marin Intl., returning Thu, Aug 21, priced at $184 found 1 day ago

Thu, Oct 2 - Thu, Oct 9

PHL

Philadelphia Intl.

SJU

Luis Munoz Marin Intl.

$206 Roundtrip, just found

$206

Roundtrip

just found

Select Frontier Airlines flight, departing Thu, Oct 2 from Philadelphia Intl. to Luis Munoz Marin Intl., returning Thu, Oct 9, priced at $206 just found

Thu, Oct 2 - Thu, Oct 9

PHL

Philadelphia Intl.

SJU

Luis Munoz Marin Intl.

$208 Roundtrip, just found

$208

Roundtrip

just found

Select Spirit Airlines flight, departing Thu, Oct 2 from Philadelphia Intl. to Luis Munoz Marin Intl., returning Thu, Oct 9, priced at $208 just found

Thu, Oct 2 - Thu, Oct 9

PHL

Philadelphia Intl.

SJU

Luis Munoz Marin Intl.

$208 Roundtrip, just found

$208

Roundtrip

just found

Select Spirit Airlines flight, departing Thu, Oct 2 from Philadelphia Intl. to Luis Munoz Marin Intl., returning Thu, Oct 9, priced at $208 just found

Thu, Oct 2 - Thu, Oct 9

PHL

Philadelphia Intl.

SJU

Luis Munoz Marin Intl.

$209 Roundtrip, just found

$209

Roundtrip

just found

Select Frontier Airlines flight, departing Thu, Oct 2 from Philadelphia Intl. to Luis Munoz Marin Intl., returning Thu, Oct 9, priced at $209 just found

Thu, Oct 2 - Thu, Oct 9

PHL

Philadelphia Intl.

SJU

Luis Munoz Marin Intl.

$211 Roundtrip, just found

$211

Roundtrip

just found

Select Frontier Airlines flight, departing Thu, Oct 2 from Philadelphia Intl. to Luis Munoz Marin Intl., returning Thu, Oct 9, priced at $211 just found

Thu, Oct 2 - Thu, Oct 9

PHL

Philadelphia Intl.

SJU

Luis Munoz Marin Intl.

$221 Roundtrip, just found

$221

Roundtrip

just found

Select Spirit Airlines flight, departing Thu, Oct 2 from Philadelphia Intl. to Luis Munoz Marin Intl., returning Thu, Oct 9, priced at $221 just found

Tue, Aug 12 - Wed, Aug 13

TTN

Mercer

SJU

Luis Munoz Marin Intl.

$223 Roundtrip, found 1 day ago

$223

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Aug 12 from Mercer to Luis Munoz Marin Intl., returning Wed, Aug 13, priced at $223 found 1 day ago

Sun, Aug 24 - Sat, Aug 30

PHL

Philadelphia Intl.

SJU

Luis Munoz Marin Intl.

$225 Roundtrip, found 3 days ago

$225

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Sun, Aug 24 from Philadelphia Intl. to Luis Munoz Marin Intl., returning Sat, Aug 30, priced at $225 found 3 days ago

Tue, Aug 12 - Sat, Aug 16

TTN

Mercer

PSE

Mercedita

$228 Roundtrip, found 3 days ago

$228

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Tue, Aug 12 from Mercer to Mercedita, returning Sat, Aug 16, priced at $228 found 3 days ago

Sat, Aug 9 - Sat, Aug 16

PHL

Philadelphia Intl.

PSE

Mercedita

$228 Roundtrip, found 3 days ago

$228

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sat, Aug 9 from Philadelphia Intl. to Mercedita, returning Sat, Aug 16, priced at $228 found 3 days ago

Fri, Oct 24 - Wed, Oct 29

PHL

Philadelphia Intl.

SJU

Luis Munoz Marin Intl.

$230 Roundtrip, found 2 days ago

$230

Roundtrip

found 2 days ago

Select American Airlines flight, departing Fri, Oct 24 from Philadelphia Intl. to Luis Munoz Marin Intl., returning Wed, Oct 29, priced at $230 found 2 days ago

Wed, Aug 13 - Thu, Aug 14

TTN

Mercer

SJU

Luis Munoz Marin Intl.

$233 Roundtrip, found 1 day ago

$233

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Aug 13 from Mercer to Luis Munoz Marin Intl., returning Thu, Aug 14, priced at $233 found 1 day ago

Mon, Aug 18 - Thu, Aug 21

PHL

Philadelphia Intl.

SJU

Luis Munoz Marin Intl.

$234 Roundtrip, found 3 days ago

$234

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Mon, Aug 18 from Philadelphia Intl. to Luis Munoz Marin Intl., returning Thu, Aug 21, priced at $234 found 3 days ago

Mon, Sep 29 - Thu, Oct 9

PHL

Philadelphia Intl.

SJU

Luis Munoz Marin Intl.

$236 Roundtrip, just found

$236

Roundtrip

just found

Select Spirit Airlines flight, departing Mon, Sep 29 from Philadelphia Intl. to Luis Munoz Marin Intl., returning Thu, Oct 9, priced at $236 just found

Tue, Aug 12 - Sat, Aug 16

TTN

Mercer

SJU

Luis Munoz Marin Intl.

$236 Roundtrip, found 1 day ago

$236

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Aug 12 from Mercer to Luis Munoz Marin Intl., returning Sat, Aug 16, priced at $236 found 1 day ago

Sat, Aug 9 - Thu, Aug 21

PHL

Philadelphia Intl.

PSE

Mercedita

$238 Roundtrip, found 3 days ago

$238

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sat, Aug 9 from Philadelphia Intl. to Mercedita, returning Thu, Aug 21, priced at $238 found 3 days ago

Tue, Sep 30 - Tue, Oct 7

PHL

Philadelphia Intl.

SJU

Luis Munoz Marin Intl.

$239 Roundtrip, just found

$239

Roundtrip

just found

Select Delta flight, departing Tue, Sep 30 from Philadelphia Intl. to Luis Munoz Marin Intl., returning Tue, Oct 7, priced at $239 just found

Thu, Oct 2 - Thu, Oct 9

PHL

Philadelphia Intl.

SJU

Luis Munoz Marin Intl.

$293 Roundtrip, just found

$293

Roundtrip

just found

Select JetBlue Airways flight, departing Thu, Oct 2 from Philadelphia Intl. to Luis Munoz Marin Intl., returning Thu, Oct 9, priced at $293 just found

Thu, Oct 2 - Thu, Oct 9

PHL

Philadelphia Intl.

SJU

Luis Munoz Marin Intl.

$357 Roundtrip, just found

$357

Roundtrip

just found

Select United flight, departing Thu, Oct 2 from Philadelphia Intl. to Luis Munoz Marin Intl., returning Thu, Oct 9, priced at $357 just found