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

American Airlines and Iberia 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.

$456 Cheap Flights from Porto to Philadelphia in 2026

Find the cheapest flights from Porto to Philadelphia

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:25 pm - 3:50 pm

OPO

PHL

32h 25m

1 stop

7:50 pm - 4:00 pm

PHL

OPO

15h 10m

1 stop

$796American Airlines

Thu, Dec 3 - Sun, Dec 6

12:25 pm - 3:50 pm

OPO

PHL

32h 25m

1 stop

7:50 pm - 4:00 pm

PHL

OPO

15h 10m

1 stop

$797American Airlines

Thu, Dec 3 - Sun, Dec 6

12:25 pm - 3:50 pm

OPO

PHL

32h 25m

1 stop

6:35 pm - 4:00 pm

PHL

OPO

16h 25m

2 stops

$798American Airlines

Thu, Dec 3 - Sun, Dec 6

12:25 pm - 3:50 pm

OPO

PHL

32h 25m

1 stop

6:35 pm - 4:00 pm

PHL

OPO

16h 25m

2 stops

$799American Airlines

Thu, Dec 3 - Sun, Dec 6

8:20 am - 9:42 pm

OPO

PHL

18h 22m

2 stops

9:25 pm - 11:45 am

PHL

OPO

33h 20m

2 stops

$805American Airlines

Thu, Dec 3 - Sun, Dec 6

8:20 am - 9:42 pm

OPO

PHL

18h 22m

2 stops

9:25 pm - 11:45 am

PHL

OPO

33h 20m

2 stops

$806American Airlines

Thu, Dec 3 - Sun, Dec 6

8:20 am - 9:42 pm

OPO

PHL

18h 22m

2 stops

9:25 pm - 11:45 am

PHL

OPO

33h 20m

2 stops

$807American Airlines

Thu, Dec 3 - Sun, Dec 6

5:50 pm - 8:36 am

OPO

PHL

19h 46m

1 stop

9:20 am - 10:55 am

PHL

OPO

20h 35m

1 stop

$940TAP AIR PORTUGAL

Mon, Jul 27 - Mon, Aug 3

5:50 pm - 8:36 am

OPO

PHL

19h 46m

1 stop

9:20 am - 10:55 am

PHL

OPO

20h 35m

1 stop

$944TAP AIR PORTUGAL

Mon, Jul 27 - Mon, Aug 3

5:50 pm - 8:36 am

OPO

PHL

19h 46m

1 stop

9:20 am - 10:55 am

PHL

OPO

20h 35m

1 stop

$967Multiple Airlines

Mon, Jul 27 - Mon, Aug 3

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American Airlines flights from Porto to Philadelphia

Our best American Airlines deals on Porto to Philadelphia flight tickets

American Airlines

Dec 3

OPO12:25 pmPorto

32h 25m

1 stop

PHL3:50 pmPhiladelphia

Dec 6

PHL7:50 pmPhiladelphia

15h 10m

1 stop

OPO4:00 pmPorto

$796

American Airlines

Dec 3

OPO12:25 pmPorto

32h 25m

1 stop

PHL3:50 pmPhiladelphia

Dec 6

PHL7:50 pmPhiladelphia

15h 10m

1 stop

OPO4:00 pmPorto

$797

American Airlines

Dec 3

OPO12:25 pmPorto

32h 25m

1 stop

PHL3:50 pmPhiladelphia

Dec 6

PHL6:35 pmPhiladelphia

16h 25m

2 stops

OPO4:00 pmPorto

$798

Air France flights from Porto to Philadelphia

Our best Air France deals on Porto to Philadelphia flight tickets

Air France

Jul 27

OPO6:30 amPorto

17h 45m

2 stops

PHL7:15 pmPhiladelphia

Aug 3

PHL1:15 pmPhiladelphia

14h 15m

2 stops

OPO8:30 amPorto

$1,039

Air France

Jul 27

OPO6:30 amPorto

17h 45m

2 stops

PHL7:15 pmPhiladelphia

Aug 3

PHL1:15 pmPhiladelphia

14h 15m

2 stops

OPO8:30 amPorto

$1,041

Air France

Jul 30

OPO1:25 pmPorto

16h 34m

2 stops

PHL12:59 amPhiladelphia

Aug 4

PHL1:15 pmPhiladelphia

14h 15m

2 stops

OPO8:30 amPorto

$1,048

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 12/3

12:25 pm-3:50 pm

1 stop32h 25m

Philadelphia

Sun 12/6

7:50 pm-4:00 pm

1 stop15h 10m

$796

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 12/3

12:25 pm-3:50 pm

1 stop32h 25m

Philadelphia

Sun 12/6

7:50 pm-4:00 pm

1 stop15h 10m

$797

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 12/3

12:25 pm-3:50 pm

1 stop32h 25m

Philadelphia

Sun 12/6

6:35 pm-4:00 pm

2 stops16h 25m

$798

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 12/3

12:25 pm-3:50 pm

1 stop32h 25m

Philadelphia

Sun 12/6

6:35 pm-4:00 pm

2 stops16h 25m

$799

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 12/3

8:20 am-9:42 pm

2 stops18h 22m

Philadelphia

Sun 12/6

9:25 pm-11:45 am

2 stops33h 20m

$805

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 12/3

8:20 am-9:42 pm

2 stops18h 22m

Philadelphia

Sun 12/6

9:25 pm-11:45 am

2 stops33h 20m

$806

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 12/3

8:20 am-9:42 pm

2 stops18h 22m

Philadelphia

Sun 12/6

9:25 pm-11:45 am

2 stops33h 20m

$807

Quickest round-trip

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mon 7/27

5:50 pm-8:36 am

1 stop19h 46m

Philadelphia

Mon 8/3

9:20 am-10:55 am

1 stop20h 35m

$940

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mon 7/27

5:50 pm-8:36 am

1 stop19h 46m

Philadelphia

Mon 8/3

9:20 am-10:55 am

1 stop20h 35m

$944

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mon 7/27

5:50 pm-8:36 am

1 stop19h 46m

Philadelphia

Mon 8/3

9:20 am-10:55 am

1 stop20h 35m

$967

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 2% 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

Fastest flight time	19h 46m
Direct flights	None

The fastest flight from Porto to Philadelphia takes 19h 46m

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

Search flight deals

Frequently asked questions about flying from Porto to Philadelphia

How far is Porto to Philadelphia by plane?
Porto and Philadelphia are 3401.6 mi apart from one another. Typically, this will take 19h 46m 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

Rehoboth Beach

Cape May

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Dewey Beach

Reading

Dover

North Wildwood

Essington

Avalon

Lewes

New Castle

Stone Harbor

Vineland

Chester

Pottstown

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.