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

Lufthansa, Iberia, and American 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.

$444 Cheap Flights from Porto to Philadelphia (OPO-PHL) in 2025

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Find the cheapest flights from Porto to Philadelphia (OPO-PHL)

Round-trip

One-way

Cheap round-trip flights

8:15 am - 10:02 pmOPO-PHL

18h 47m2 stops

10:56 am - 7:35 amPHL-OPO

15h 39m2 stops

$697American Airlines

Find Deal

Thu, Oct 9 - Tue, Oct 14

10:25 pm - 8:57 pmOPO-PHL

27h 32m2 stops

4:03 pm - 4:45 pmPHL-OPO

19h 42m2 stops

$699

Find Deal

Thu, Oct 9 - Tue, Oct 14

9:15 pm - 8:57 pmOPO-PHL

28h 42m2 stops

4:03 pm - 4:45 pmPHL-OPO

19h 42m2 stops

$700

Find Deal

Thu, Oct 9 - Tue, Oct 14

8:40 pm - 1:10 pmOPO-PHL

21h 30m2 stops

7:45 pm - 11:45 amPHL-OPO

35h 00m2 stops

$717Iberia

Find Deal

Thu, Feb 19 - Mon, Feb 23

12:25 pm - 3:35 pmOPO-PHL

32h 10m1 stop

7:45 pm - 11:45 amPHL-OPO

35h 00m2 stops

$721Iberia

Find Deal

Thu, Feb 19 - Mon, Feb 23

8:40 pm - 3:35 pmOPO-PHL

23h 55m1 stop

4:40 pm - 11:45 amPHL-OPO

14h 05m1 stop

$726Iberia

Find Deal

Thu, Feb 19 - Mon, Feb 23

6:00 am - 4:00 pmOPO-PHL

15h 00m1 stop

5:35 pm - 3:45 pmPHL-OPO

17h 10m1 stop

$731Lufthansa

Find Deal

Thu, Oct 9 - Tue, Oct 14

6:00 am - 4:00 pmOPO-PHL

15h 00m1 stop

5:35 pm - 11:15 amPHL-OPO

12h 40m1 stop

$733Lufthansa

Find Deal

Thu, Oct 9 - Tue, Oct 14

11:25 am - 9:32 pmOPO-PHL

39h 07m2 stops

1:00 pm - 5:30 pmPHL-OPO

23h 30m2 stops

$749SWISS

Find Deal

Thu, Feb 19 - Mon, Feb 23

11:25 am - 9:32 pmOPO-PHL

39h 07m2 stops

1:00 pm - 5:30 pmPHL-OPO

23h 30m2 stops

$751SWISS

Find Deal

Thu, Feb 19 - Mon, Feb 23

SWISS flights from Porto to Philadelphia

Our best SWISS deals on Porto to Philadelphia flight tickets

SWISS

Feb 19

OPO11:25 amPorto

39h 07m

2 stops

PHL9:32 pmPhiladelphia

Feb 23

PHL1:00 pmPhiladelphia

23h 30m

2 stops

OPO5:30 pmPorto

$749

Find similar

SWISS

Feb 19

OPO11:25 amPorto

39h 07m

2 stops

PHL9:32 pmPhiladelphia

Feb 23

PHL1:00 pmPhiladelphia

23h 30m

2 stops

OPO5:30 pmPorto

$751

Find similar

Iberia flights from Porto to Philadelphia

Our best Iberia deals on Porto to Philadelphia flight tickets

Iberia

Feb 19

OPO8:40 pmPorto

21h 30m

2 stops

PHL1:10 pmPhiladelphia

Feb 23

PHL7:45 pmPhiladelphia

35h 00m

2 stops

OPO11:45 amPorto

$717

Find similar

Iberia

Feb 19

OPO12:25 pmPorto

32h 10m

1 stop

PHL3:35 pmPhiladelphia

Feb 23

PHL7:45 pmPhiladelphia

35h 00m

2 stops

OPO11:45 amPorto

$721

Find similar

Iberia

Feb 19

OPO8:40 pmPorto

23h 55m

1 stop

PHL3:35 pmPhiladelphia

Feb 23

PHL4:40 pmPhiladelphia

14h 05m

1 stop

OPO11:45 amPorto

$726

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 10/9

8:15 am-10:02 pm

2 stops18h 47m

Philadelphia

Tue 10/14

10:56 am-7:35 am

2 stops15h 39m

$697

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 10/9

10:25 pm-8:57 pm

2 stops27h 32m

Philadelphia

Tue 10/14

4:03 pm-4:45 pm

2 stops19h 42m

$699

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 10/9

9:15 pm-8:57 pm

2 stops28h 42m

Philadelphia

Tue 10/14

4:03 pm-4:45 pm

2 stops19h 42m

$700

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 2/19

8:40 pm-1:10 pm

2 stops21h 30m

Philadelphia

Mon 2/23

7:45 pm-11:45 am

2 stops35h 00m

$717

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 2/19

12:25 pm-3:35 pm

1 stop32h 10m

Philadelphia

Mon 2/23

7:45 pm-11:45 am

2 stops35h 00m

$721

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 2/19

8:40 pm-3:35 pm

1 stop23h 55m

Philadelphia

Mon 2/23

4:40 pm-11:45 am

1 stop14h 05m

$726

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 10/9

6:00 am-4:00 pm

1 stop15h 00m

Philadelphia

Tue 10/14

5:35 pm-3:45 pm

1 stop17h 10m

$731

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 10/9

6:00 am-4:00 pm

1 stop15h 00m

Philadelphia

Tue 10/14

5:35 pm-11:15 am

1 stop12h 40m

$733

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 2/19

11:25 am-9:32 pm

2 stops39h 07m

Philadelphia

Mon 2/23

1:00 pm-5:30 pm

2 stops23h 30m

$749

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 2/19

11:25 am-9:32 pm

2 stops39h 07m

Philadelphia

Mon 2/23

1:00 pm-5:30 pm

2 stops23h 30m

$751

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from Porto to Philadelphia is on a Thursday. Travelers who choose to depart for Philadelphia on a Thursday will often find tickets for as low as $762. On the other hand, Tuesday is the most expensive day to depart from Porto because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $778.

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.

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 15h 00m 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

Reading

Dewey Beach

Newark

North Wildwood

Cherry Hill

Dover

Lewes

Avalon

Stone Harbor

Vineland

Essington

Exton

Pottstown

New Castle

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.