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

American Airlines, British Airways, and Turkish Airlines 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.

$351 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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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:30 am - 4:00 pmOPO-PHL

14h 30m1 stop

5:30 pm - 9:15 pmPHL-OPO

22h 45m2 stops

$669Multiple Airlines

Find Deal

Mon, Nov 3 - Mon, Nov 10

6:00 pm - 7:56 pmOPO-PHL

30h 56m2 stops

6:00 am - 10:30 pmPHL-OPO

35h 30m3 stops

$672Multiple Airlines

Find Deal

Wed, Nov 12 - Wed, Nov 19

6:00 am - 5:05 pmOPO-PHL

15h 05m1 stop

5:40 pm - 11:40 amPHL-OPO

13h 00m1 stop

$771Lufthansa

Find Deal

Thu, Oct 30 - Tue, Nov 4

6:30 am - 5:16 pmOPO-PHL

15h 46m2 stops

10:15 am - 10:30 amPHL-OPO

19h 15m2 stops

$778Delta

Find Deal

Fri, Nov 28 - Fri, Dec 5

6:00 am - 9:36 pmOPO-PHL

20h 36m2 stops

1:23 pm - 10:30 amPHL-OPO

16h 07m2 stops

$780Delta

Find Deal

Wed, Nov 26 - Wed, Dec 3

6:00 am - 5:05 pmOPO-PHL

15h 05m1 stop

10:34 am - 9:30 amPHL-OPO

17h 56m2 stops

$784United Airlines

Find Deal

Thu, Oct 30 - Tue, Nov 4

6:00 am - 9:48 amOPO-PHL

32h 48m2 stops

10:10 am - 9:30 amPHL-OPO

18h 20m2 stops

$787United Airlines

Find Deal

Thu, Feb 19 - Mon, Feb 23

8:40 pm - 3:40 pmOPO-PHL

24h 00m1 stop

6:35 pm - 8:00 pmPHL-OPO

20h 25m2 stops

$793Iberia

Find Deal

Wed, Nov 26 - Wed, Dec 3

8:40 pm - 3:40 pmOPO-PHL

24h 00m1 stop

7:55 pm - 8:00 pmPHL-OPO

19h 05m1 stop

$806Iberia

Find Deal

Tue, Nov 11 - Tue, Nov 18

4:15 pm - 4:05 pmOPO-PHL

28h 50m1 stop

3:30 pm - 1:15 pmPHL-OPO

16h 45m2 stops

$807Lufthansa

Find Deal

Wed, Nov 12 - Wed, Nov 19

Lufthansa flights from Porto to Philadelphia

Our best Lufthansa deals on Porto to Philadelphia flight tickets

Lufthansa

Oct 30

OPO6:00 amPorto

15h 05m

1 stop

PHL5:05 pmPhiladelphia

Nov 4

PHL5:40 pmPhiladelphia

13h 00m

1 stop

OPO11:40 amPorto

$771

Find similar

Lufthansa

Nov 12

OPO4:15 pmPorto

28h 50m

1 stop

PHL4:05 pmPhiladelphia

Nov 19

PHL3:30 pmPhiladelphia

16h 45m

2 stops

OPO1:15 pmPorto

$807

Find similar

Lufthansa

Oct 15

OPO6:00 amPorto

15h 00m

1 stop

PHL4:00 pmPhiladelphia

Oct 22

PHL5:35 pmPhiladelphia

12h 45m

1 stop

OPO11:20 amPorto

$1,078

Find similar

Delta flights from Porto to Philadelphia

Our best Delta deals on Porto to Philadelphia flight tickets

Delta

Nov 28

OPO6:30 amPorto

15h 46m

2 stops

PHL5:16 pmPhiladelphia

Dec 5

PHL10:15 amPhiladelphia

19h 15m

2 stops

OPO10:30 amPorto

$778

Find similar

Delta

Nov 26

OPO6:00 amPorto

20h 36m

2 stops

PHL9:36 pmPhiladelphia

Dec 3

PHL1:23 pmPhiladelphia

16h 07m

2 stops

OPO10:30 amPorto

$780

Find similar

Delta

Oct 15

OPO6:15 amPorto

20h 17m

2 stops

PHL9:32 pmPhiladelphia

Oct 22

PHL1:42 pmPhiladelphia

20h 48m

2 stops

OPO3:30 pmPorto

$894

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mon 11/3

6:30 am-4:00 pm

1 stop14h 30m

Philadelphia

Mon 11/10

5:30 pm-9:15 pm

2 stops22h 45m

$669

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Wed 11/12

6:00 pm-7:56 pm

2 stops30h 56m

Philadelphia

Wed 11/19

6:00 am-10:30 pm

3 stops35h 30m

$672

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 10/30

6:00 am-5:05 pm

1 stop15h 05m

Philadelphia

Tue 11/4

5:40 pm-11:40 am

1 stop13h 00m

$771

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Fri 11/28

6:30 am-5:16 pm

2 stops15h 46m

Philadelphia

Fri 12/5

10:15 am-10:30 am

2 stops19h 15m

$778

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Wed 11/26

6:00 am-9:36 pm

2 stops20h 36m

Philadelphia

Wed 12/3

1:23 pm-10:30 am

2 stops16h 07m

$780

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 10/30

6:00 am-5:05 pm

1 stop15h 05m

Philadelphia

Tue 11/4

10:34 am-9:30 am

2 stops17h 56m

$784

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 2/19

6:00 am-9:48 am

2 stops32h 48m

Philadelphia

Mon 2/23

10:10 am-9:30 am

2 stops18h 20m

$787

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Wed 11/26

8:40 pm-3:40 pm

1 stop24h 00m

Philadelphia

Wed 12/3

6:35 pm-8:00 pm

2 stops20h 25m

$793

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Tue 11/11

8:40 pm-3:40 pm

1 stop24h 00m

Philadelphia

Tue 11/18

7:55 pm-8:00 pm

1 stop19h 05m

$806

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Wed 11/12

4:15 pm-4:05 pm

1 stop28h 50m

Philadelphia

Wed 11/19

3:30 pm-1:15 pm

2 stops16h 45m

$807

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 10h 10m 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

Dewey Beach

Reading

Cherry Hill

Newark

North Wildwood

Dover

Avalon

Lewes

Stone Harbor

Vineland

Essington

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.