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

Iberia 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.

$391 Cheap Flights from Porto to Philadelphia in 2026

Find the cheapest flights from Porto to Philadelphia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:20 am - 3:50 pm

OPO

PHL

12h 30m

1 stop

7:50 pm - 4:00 pm

PHL

OPO

15h 10m

1 stop

$814Iberia

Tue, Dec 22 - Tue, Jan 5

8:20 am - 3:50 pm

OPO

PHL

12h 30m

1 stop

7:50 pm - 4:00 pm

PHL

OPO

15h 10m

2 stops

$821Iberia

Tue, Dec 22 - Tue, Jan 5

8:40 pm - 5:45 pm

OPO

PHL

26h 05m

1 stop

4:20 pm - 7:40 am

PHL

OPO

10h 20m

1 stop

$827Iberia

Mon, Sep 14 - Mon, Sep 21

8:40 pm - 5:45 pm

OPO

PHL

26h 05m

1 stop

4:20 pm - 7:40 am

PHL

OPO

10h 20m

1 stop

$829Iberia

Mon, Sep 14 - Mon, Sep 21

8:40 pm - 1:50 pm

OPO

PHL

22h 10m

2 stops

4:25 pm - 4:00 pm

PHL

OPO

18h 35m

2 stops

$844Iberia

Tue, Dec 22 - Tue, Jan 5

6:00 pm - 9:50 am

OPO

PHL

20h 50m

1 stop

3:25 pm - 10:55 am

PHL

OPO

14h 30m

1 stop

$856TAP AIR PORTUGAL

Sun, Sep 20 - Sat, Sep 26

6:00 pm - 9:50 am

OPO

PHL

20h 50m

1 stop

10:45 am - 7:00 pm

PHL

OPO

27h 15m

2 stops

$877TAP AIR PORTUGAL

Sun, Sep 20 - Sat, Sep 26

6:00 pm - 7:38 am

OPO

PHL

18h 38m

1 stop

6:48 pm - 10:30 am

PHL

OPO

10h 42m

1 stop

$881TAP AIR PORTUGAL

Sun, Sep 6 - Sun, Sep 13

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

5:40 pm - 3:45 pm

PHL

OPO

17h 05m

1 stop

$883Lufthansa

Thu, Sep 3 - Thu, Sep 10

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

11:04 am - 11:25 am

PHL

OPO

19h 21m

2 stops

$885Multiple Airlines

Mon, Sep 14 - Mon, Sep 21

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SWISS flights from Porto to Philadelphia

Our best SWISS deals on Porto to Philadelphia flight tickets

SWISS

Sep 14

OPO7:20 pmPorto

27h 34m

2 stops

PHL5:54 pmPhiladelphia

Sep 21

PHL11:04 amPhiladelphia

19h 21m

2 stops

OPO11:25 amPorto

$893

SWISS

Sep 20

OPO7:20 pmPorto

25h 45m

2 stops

PHL4:05 pmPhiladelphia

Sep 26

PHL11:20 amPhiladelphia

26h 10m

3 stops

OPO6:30 pmPorto

$1,115

Iberia flights from Porto to Philadelphia

Our best Iberia deals on Porto to Philadelphia flight tickets

Iberia

Dec 22

OPO8:20 amPorto

12h 30m

1 stop

PHL3:50 pmPhiladelphia

Jan 5

PHL7:50 pmPhiladelphia

15h 10m

1 stop

OPO4:00 pmPorto

$814

Iberia

Dec 22

OPO8:20 amPorto

12h 30m

1 stop

PHL3:50 pmPhiladelphia

Jan 5

PHL7:50 pmPhiladelphia

15h 10m

2 stops

OPO4:00 pmPorto

$821

Iberia

Sep 14

OPO8:40 pmPorto

26h 05m

1 stop

PHL5:45 pmPhiladelphia

Sep 21

PHL4:20 pmPhiladelphia

10h 20m

1 stop

OPO7:40 amPorto

$827

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Tue 12/22

8:20 am-3:50 pm

1 stop12h 30m

Philadelphia

Tue 1/5

7:50 pm-4:00 pm

1 stop15h 10m

$814

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Tue 12/22

8:20 am-3:50 pm

1 stop12h 30m

Philadelphia

Tue 1/5

7:50 pm-4:00 pm

2 stops15h 10m

$821

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mon 9/14

8:40 pm-5:45 pm

1 stop26h 05m

Philadelphia

Mon 9/21

4:20 pm-7:40 am

1 stop10h 20m

$827

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mon 9/14

8:40 pm-5:45 pm

1 stop26h 05m

Philadelphia

Mon 9/21

4:20 pm-7:40 am

1 stop10h 20m

$829

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Tue 12/22

8:40 pm-1:50 pm

2 stops22h 10m

Philadelphia

Tue 1/5

4:25 pm-4:00 pm

2 stops18h 35m

$844

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sun 9/20

6:00 pm-9:50 am

1 stop20h 50m

Philadelphia

Sat 9/26

3:25 pm-10:55 am

1 stop14h 30m

$856

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sun 9/20

6:00 pm-9:50 am

1 stop20h 50m

Philadelphia

Sat 9/26

10:45 am-7:00 pm

2 stops27h 15m

$877

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sun 9/6

6:00 pm-7:38 am

1 stop18h 38m

Philadelphia

Sun 9/13

6:48 pm-10:30 am

1 stop10h 42m

$881

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 9/3

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Thu 9/10

5:40 pm-3:45 pm

1 stop17h 05m

$883

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mon 9/14

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Mon 9/21

11:04 am-11:25 am

2 stops19h 21m

$885

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 31% 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	54h 35m
Direct flights	None

The fastest flight from Porto to Philadelphia takes 54h 35m

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 54h 35m 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

Reading

Dewey Beach

Dover

Essington

North Wildwood

New Castle

Avalon

Chester

Lewes

Stone Harbor

Vineland

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.