What is the cheapest airline that flies from Porto to Philadelphia?

Iberia, American Airlines, and British Airways are the most popular carriers operating from Porto to Philadelphia

When did momondo last update prices for flights from Porto Airport to Philadelphia Airport?

Prices for flights from Porto Airport to Philadelphia Airport are refreshed on a daily basis.

How old do you have to be to fly from Porto Airport to Philadelphia Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Porto Airport to Philadelphia Airport.

What documentation or ID do you need to fly to Philadelphia Airport?

The necessary travel and health documents for your Philadelphia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$472 Cheap Flights from Porto to Philadelphia in 2025/26

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Find the cheapest flights from Porto to Philadelphia

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6:00 am - 4:05 pmOPO-PHL

15h 05m1 stop

5:40 pm - 11:40 amPHL-OPO

13h 00m1 stop

$743Lufthansa

Find Deal

Thu, Nov 27 - Tue, Dec 2

6:00 am - 4:05 pmOPO-PHL

15h 05m1 stop

8:05 pm - 2:45 pmPHL-OPO

13h 40m2 stops

$759United Airlines

Find Deal

Thu, Nov 27 - Tue, Dec 2

6:00 am - 10:24 amOPO-PHL

33h 24m2 stops

6:32 am - 9:30 amPHL-OPO

21h 58m2 stops

$760United Airlines

Find Deal

Thu, Feb 19 - Mon, Feb 23

6:00 am - 9:38 pmOPO-PHL

20h 38m2 stops

10:06 am - 9:30 amPHL-OPO

18h 24m2 stops

$761United Airlines

Find Deal

Thu, Feb 19 - Mon, Feb 23

6:00 am - 10:24 amOPO-PHL

33h 24m2 stops

10:06 am - 9:30 amPHL-OPO

18h 24m2 stops

$762United Airlines

Find Deal

Thu, Feb 19 - Mon, Feb 23

6:00 am - 10:46 pmOPO-PHL

21h 46m2 stops

3:30 pm - 2:45 pmPHL-OPO

18h 15m2 stops

$765Multiple Airlines

Find Deal

Thu, Nov 27 - Tue, Dec 2

8:20 am - 3:35 pmOPO-PHL

12h 15m1 stop

6:35 pm - 4:00 pmPHL-OPO

16h 25m2 stops

$781American Airlines

Find Deal

Thu, Feb 19 - Mon, Feb 23

8:20 am - 3:35 pmOPO-PHL

12h 15m1 stop

6:35 pm - 4:00 pmPHL-OPO

16h 25m2 stops

$782American Airlines

Find Deal

Thu, Feb 19 - Mon, Feb 23

8:20 am - 3:35 pmOPO-PHL

12h 15m1 stop

8:00 pm - 11:45 amPHL-OPO

10h 45m1 stop

$794American Airlines

Find Deal

Thu, Feb 19 - Mon, Feb 23

8:20 am - 3:35 pmOPO-PHL

12h 15m1 stop

8:00 pm - 11:45 amPHL-OPO

10h 45m1 stop

$795American Airlines

Find Deal

Thu, Feb 19 - Mon, Feb 23

American Airlines flights from Porto to Philadelphia

Our best American Airlines deals on Porto to Philadelphia flight tickets

American Airlines

Feb 19

OPO8:20 amPorto

12h 15m

1 stop

PHL3:35 pmPhiladelphia

Feb 23

PHL6:35 pmPhiladelphia

16h 25m

2 stops

OPO4:00 pmPorto

$781

Find similar

American Airlines

Feb 19

OPO8:20 amPorto

12h 15m

1 stop

PHL3:35 pmPhiladelphia

Feb 23

PHL6:35 pmPhiladelphia

16h 25m

2 stops

OPO4:00 pmPorto

$782

Find similar

American Airlines

Feb 19

OPO8:20 amPorto

12h 15m

1 stop

PHL3:35 pmPhiladelphia

Feb 23

PHL8:00 pmPhiladelphia

10h 45m

1 stop

OPO11:45 amPorto

$794

Find similar

United Airlines flights from Porto to Philadelphia

Our best United Airlines deals on Porto to Philadelphia flight tickets

United Airlines

Nov 27

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

Dec 2

PHL8:05 pmPhiladelphia

13h 40m

2 stops

OPO2:45 pmPorto

$759

Find similar

United Airlines

Feb 19

OPO6:00 amPorto

33h 24m

2 stops

PHL10:24 amPhiladelphia

Feb 23

PHL6:32 amPhiladelphia

21h 58m

2 stops

OPO9:30 amPorto

$760

Find similar

United Airlines

Feb 19

OPO6:00 amPorto

20h 38m

2 stops

PHL9:38 pmPhiladelphia

Feb 23

PHL10:06 amPhiladelphia

18h 24m

2 stops

OPO9:30 amPorto

$761

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 11/27

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Tue 12/2

5:40 pm-11:40 am

1 stop13h 00m

$743

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 11/27

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Tue 12/2

8:05 pm-2:45 pm

2 stops13h 40m

$759

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 2/19

6:00 am-10:24 am

2 stops33h 24m

Philadelphia

Mon 2/23

6:32 am-9:30 am

2 stops21h 58m

$760

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 2/19

6:00 am-9:38 pm

2 stops20h 38m

Philadelphia

Mon 2/23

10:06 am-9:30 am

2 stops18h 24m

$761

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 2/19

6:00 am-10:24 am

2 stops33h 24m

Philadelphia

Mon 2/23

10:06 am-9:30 am

2 stops18h 24m

$762

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 11/27

6:00 am-10:46 pm

2 stops21h 46m

Philadelphia

Tue 12/2

3:30 pm-2:45 pm

2 stops18h 15m

$765

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 2/19

8:20 am-3:35 pm

1 stop12h 15m

Philadelphia

Mon 2/23

6:35 pm-4:00 pm

2 stops16h 25m

$781

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 2/19

8:20 am-3:35 pm

1 stop12h 15m

Philadelphia

Mon 2/23

6:35 pm-4:00 pm

2 stops16h 25m

$782

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 2/19

8:20 am-3:35 pm

1 stop12h 15m

Philadelphia

Mon 2/23

8:00 pm-11:45 am

1 stop10h 45m

$794

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 2/19

8:20 am-3:35 pm

1 stop12h 15m

Philadelphia

Mon 2/23

8:00 pm-11:45 am

1 stop10h 45m

$795

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Porto to Philadelphia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Can stopping save me money on Porto to Philadelphia flights?

You could potentially save up to 10% on your flight if you consider stops on a Porto to Philadelphia flight.

When to book flights from Porto to Philadelphia

Are you open to changing your travel dates? Check out the ideal times to fly from Porto to Philadelphia according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Porto to Philadelphia (OPO to PHL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Porto to Philadelphia

Direct flights	None

There are no direct flights from Porto to Philadelphia. There are no popular flight routes from Porto to Philadelphia.

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How far is Porto to Philadelphia by plane?
Porto and Philadelphia are 3401.6 mi apart from one another. Typically, this will take 9h 50m by plane in normal conditions.
When did momondo last update prices for flights from Porto Airport to Philadelphia Airport?
Prices for flights from Porto Airport to Philadelphia Airport are refreshed on a daily basis.
How old do you have to be to fly from Porto Airport to Philadelphia Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Porto Airport to Philadelphia Airport.
What documentation or ID do you need to fly to Philadelphia Airport?
The necessary travel and health documents for your Philadelphia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Wildwood

Cape May

Rehoboth Beach

Ocean City

Wildwood Crest

King of Prussia

Cherry Hill

Dewey Beach

Newark

Reading

North Wildwood

Dover

Avalon

Lewes

Stone Harbor

Essington

Vineland

Pottstown

New Castle

Somers Point

Why use momondo?

Why should I use momondo to find a flight deal from Porto to Philadelphia?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Philadelphia from Porto.

Can I find flights from Porto to Philadelphia with flexible booking policies on momondo?

Flights from Porto to Philadelphia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Porto to Philadelphia?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Philadelphia from Porto.

I’m not ready to book a flight from Porto to Philadelphia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Porto to Philadelphia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Philadelphia and let you know when they change.