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.

$439 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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8:40 pm - 3:40 pmOPO-PHL

24h 00m1 stop

6:35 pm - 4:00 pmPHL-OPO

16h 25m2 stops

$674Iberia

Find Deal

Thu, Jan 15 - Thu, Jan 22

8:40 pm - 3:35 pmOPO-PHL

23h 55m2 stops

7:50 pm - 8:00 pmPHL-OPO

19h 10m2 stops

$676Iberia

Find Deal

Thu, Jan 15 - Thu, Jan 22

8:20 am - 8:43 amOPO-PHL

29h 23m2 stops

6:35 pm - 11:45 amPHL-OPO

36h 10m2 stops

$677American Airlines

Find Deal

Thu, Jan 22 - Mon, Jan 26

12:25 pm - 3:40 pmOPO-PHL

32h 15m1 stop

6:35 pm - 11:45 amPHL-OPO

36h 10m2 stops

$682American Airlines

Find Deal

Thu, Jan 22 - Mon, Jan 26

8:40 pm - 3:40 pmOPO-PHL

24h 00m1 stop

7:55 pm - 4:00 pmPHL-OPO

15h 05m1 stop

$687Iberia

Find Deal

Thu, Jan 15 - Thu, Jan 22

12:25 pm - 3:40 pmOPO-PHL

32h 15m1 stop

7:55 pm - 11:45 amPHL-OPO

10h 50m1 stop

$688American Airlines

Find Deal

Thu, Jan 22 - Mon, Jan 26

12:25 pm - 3:40 pmOPO-PHL

32h 15m1 stop

7:55 pm - 11:45 amPHL-OPO

10h 50m1 stop

$689American Airlines

Find Deal

Thu, Jan 22 - Mon, Jan 26

12:25 pm - 7:27 pmOPO-PHL

36h 02m2 stops

8:50 am - 7:40 amPHL-OPO

17h 50m2 stops

$694American Airlines

Find Deal

Thu, Jan 22 - Mon, Jan 26

4:40 pm - 2:00 pmOPO-PHL

26h 20m2 stops

7:55 pm - 11:45 amPHL-OPO

10h 50m1 stop

$749Iberia

Find Deal

Sat, Jan 10 - Sat, Jan 17

4:40 pm - 2:00 pmOPO-PHL

26h 20m2 stops

3:40 pm - 4:00 pmPHL-OPO

19h 20m2 stops

$754Iberia

Find Deal

Sat, Jan 10 - Sat, Jan 17

Iberia flights from Porto to Philadelphia

Our best Iberia deals on Porto to Philadelphia flight tickets

Iberia

Jan 15

OPO8:40 pmPorto

24h 00m

1 stop

PHL3:40 pmPhiladelphia

Jan 22

PHL6:35 pmPhiladelphia

16h 25m

2 stops

OPO4:00 pmPorto

$674

Find similar

Iberia

Jan 15

OPO8:40 pmPorto

23h 55m

2 stops

PHL3:35 pmPhiladelphia

Jan 22

PHL7:50 pmPhiladelphia

19h 10m

2 stops

OPO8:00 pmPorto

$676

Find similar

Iberia

Jan 15

OPO8:40 pmPorto

24h 00m

1 stop

PHL3:40 pmPhiladelphia

Jan 22

PHL7:55 pmPhiladelphia

15h 05m

1 stop

OPO4:00 pmPorto

$687

Find similar

American Airlines flights from Porto to Philadelphia

Our best American Airlines deals on Porto to Philadelphia flight tickets

American Airlines

Jan 22

OPO8:20 amPorto

29h 23m

2 stops

PHL8:43 amPhiladelphia

Jan 26

PHL6:35 pmPhiladelphia

36h 10m

2 stops

OPO11:45 amPorto

$677

Find similar

American Airlines

Jan 22

OPO12:25 pmPorto

32h 15m

1 stop

PHL3:40 pmPhiladelphia

Jan 26

PHL6:35 pmPhiladelphia

36h 10m

2 stops

OPO11:45 amPorto

$682

Find similar

American Airlines

Jan 22

OPO12:25 pmPorto

32h 15m

1 stop

PHL3:40 pmPhiladelphia

Jan 26

PHL7:55 pmPhiladelphia

10h 50m

1 stop

OPO11:45 amPorto

$688

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 1/15

8:40 pm-3:40 pm

1 stop24h 00m

Philadelphia

Thu 1/22

6:35 pm-4:00 pm

2 stops16h 25m

$674

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 1/15

8:40 pm-3:35 pm

2 stops23h 55m

Philadelphia

Thu 1/22

7:50 pm-8:00 pm

2 stops19h 10m

$676

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 1/22

8:20 am-8:43 am

2 stops29h 23m

Philadelphia

Mon 1/26

6:35 pm-11:45 am

2 stops36h 10m

$677

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 1/22

12:25 pm-3:40 pm

1 stop32h 15m

Philadelphia

Mon 1/26

6:35 pm-11:45 am

2 stops36h 10m

$682

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 1/15

8:40 pm-3:40 pm

1 stop24h 00m

Philadelphia

Thu 1/22

7:55 pm-4:00 pm

1 stop15h 05m

$687

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 1/22

12:25 pm-3:40 pm

1 stop32h 15m

Philadelphia

Mon 1/26

7:55 pm-11:45 am

1 stop10h 50m

$688

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 1/22

12:25 pm-3:40 pm

1 stop32h 15m

Philadelphia

Mon 1/26

7:55 pm-11:45 am

1 stop10h 50m

$689

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 1/22

12:25 pm-7:27 pm

2 stops36h 02m

Philadelphia

Mon 1/26

8:50 am-7:40 am

2 stops17h 50m

$694

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sat 1/10

4:40 pm-2:00 pm

2 stops26h 20m

Philadelphia

Sat 1/17

7:55 pm-11:45 am

1 stop10h 50m

$749

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sat 1/10

4:40 pm-2:00 pm

2 stops26h 20m

Philadelphia

Sat 1/17

3:40 pm-4:00 pm

2 stops19h 20m

$754

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

Fastest flight time	15h 05m
Direct flights	None

The fastest flight from Porto to Philadelphia takes 15h 05m

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

Search flight deals

How far is Porto to Philadelphia by plane?
Porto and Philadelphia are 3401.6 mi apart from one another. Typically, this will take 12h 15m 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

Avalon

Dover

Lewes

Stone Harbor

Essington

Vineland

Pottstown

Somers Point

Elkton

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.