Cheap flights from Philadelphia to Aliados

View AU$669 flight on Wed, 15 Oct. 2025Opens in a new window

Popular airlines from Philadelphia to Aliados

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Cheap Flights from Philadelphia (ILG) to Aliados (OPO)

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.

Lufthansa
Wed, 15 Oct. - Sat, 18 Oct.
PHL
Philadelphia
OPO
Porto
AU$1,690 Return, found 6 days ago
AU$1,690
Return
found 6 days ago
Select Lufthansa flight, departing Wed, 15 Oct. from Philadelphia to Porto, returning Sat, 18 Oct., priced at AU$1,690 found 6 days ago
United
Wed, 15 Oct. - Sat, 18 Oct.
PHL
Philadelphia
OPO
Porto
AU$1,708 Return, found 6 days ago
AU$1,708
Return
found 6 days ago
Select United flight, departing Wed, 15 Oct. from Philadelphia to Porto, returning Sat, 18 Oct., priced at AU$1,708 found 6 days ago
United
Wed, 15 Oct. - Sat, 18 Oct.
PHL
Philadelphia
OPO
Porto
AU$1,717 Return, found 6 days ago
AU$1,717
Return
found 6 days ago
Select United flight, departing Wed, 15 Oct. from Philadelphia to Porto, returning Sat, 18 Oct., priced at AU$1,717 found 6 days ago
Delta
Wed, 15 Oct. - Sat, 18 Oct.
PHL
Philadelphia
OPO
Porto
AU$1,737 Return, found 6 days ago
AU$1,737
Return
found 6 days ago
Select Delta flight, departing Wed, 15 Oct. from Philadelphia to Porto, returning Sat, 18 Oct., priced at AU$1,737 found 6 days ago
Air Canada
Wed, 15 Oct. - Sat, 18 Oct.
PHL
Philadelphia
OPO
Porto
AU$1,739 Return, found 6 days ago
AU$1,739
Return
found 6 days ago
Select Air Canada flight, departing Wed, 15 Oct. from Philadelphia to Porto, returning Sat, 18 Oct., priced at AU$1,739 found 6 days ago
TAP Portugal
Wed, 15 Oct. - Sat, 18 Oct.
PHL
Philadelphia
OPO
Porto
AU$1,807 Return, found 6 days ago
AU$1,807
Return
found 6 days ago
Select TAP Portugal flight, departing Wed, 15 Oct. from Philadelphia to Porto, returning Sat, 18 Oct., priced at AU$1,807 found 6 days ago

Find the cheapest month to fly from Philadelphia (PHL) to Porto (OPO)

November is typically the cheapest month to fly

From AU$765 - AU$1,700 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.