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

Iberia is the most popular carrier 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.

$454 Cheap Flights from Porto to Philadelphia in 2026

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Find the cheapest flights from Porto to Philadelphia

Round-trip

One-way

Cheap round-trip flights

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11:00 am - 5:00 pm

OPO

PHL

34h 00m

2 stops

6:30 pm - 11:35 am

PHL

OPO

13h 05m

1 stop

$736Multiple Airlines

Sun, Mar 8 - Sun, Mar 15

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

6:40 pm - 3:15 pm

PHL

OPO

16h 35m

1 stop

$750Lufthansa

Sun, Mar 8 - Sun, Mar 15

4:10 pm - 10:44 pm

OPO

PHL

34h 34m

3 stops

6:40 pm - 10:30 am

PHL

OPO

35h 50m

3 stops

$754Multiple Airlines

Thu, Mar 12 - Tue, Mar 17

6:15 am - 9:44 pm

OPO

PHL

20h 29m

2 stops

3:30 pm - 12:50 pm

PHL

OPO

17h 20m

2 stops

$771Multiple Airlines

Sun, Mar 8 - Sun, Mar 15

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

6:40 pm - 11:40 am

PHL

OPO

13h 00m

1 stop

$785Lufthansa

Sun, Mar 8 - Sun, Mar 15

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

6:40 pm - 11:40 am

PHL

OPO

13h 00m

1 stop

$787Lufthansa

Sun, Mar 8 - Sun, Mar 15

6:00 am - 5:05 pm

OPO

PHL

15h 05m

1 stop

12:15 pm - 9:30 am

PHL

OPO

17h 15m

2 stops

$799United Airlines

Thu, Mar 12 - Tue, Mar 17

6:00 am - 3:49 pm

OPO

PHL

37h 49m

2 stops

3:30 pm - 12:05 pm

PHL

OPO

16h 35m

2 stops

$803Air Canada

Thu, Mar 12 - Tue, Mar 17

6:00 am - 5:05 pm

OPO

PHL

15h 05m

1 stop

6:40 pm - 2:45 pm

PHL

OPO

16h 05m

1 stop

$804United Airlines

Thu, Mar 12 - Tue, Mar 17

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

6:40 pm - 6:30 pm

PHL

OPO

19h 50m

2 stops

$808Multiple Airlines

Sun, Mar 8 - Sun, Mar 15

Lufthansa flights from Porto to Philadelphia

Our best Lufthansa deals on Porto to Philadelphia flight tickets

Lufthansa

Mar 8

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

Mar 15

PHL6:40 pmPhiladelphia

16h 35m

1 stop

OPO3:15 pmPorto

$750

Lufthansa

Mar 8

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

Mar 15

PHL6:40 pmPhiladelphia

13h 00m

1 stop

OPO11:40 amPorto

$785

Lufthansa

Mar 8

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

Mar 15

PHL6:40 pmPhiladelphia

13h 00m

1 stop

OPO11:40 amPorto

$787

United Airlines flights from Porto to Philadelphia

Our best United Airlines deals on Porto to Philadelphia flight tickets

United Airlines

Mar 12

OPO6:00 amPorto

15h 05m

1 stop

PHL5:05 pmPhiladelphia

Mar 17

PHL12:15 pmPhiladelphia

17h 15m

2 stops

OPO9:30 amPorto

$799

United Airlines

Mar 12

OPO6:00 amPorto

15h 05m

1 stop

PHL5:05 pmPhiladelphia

Mar 17

PHL6:40 pmPhiladelphia

16h 05m

1 stop

OPO2:45 pmPorto

$804

United Airlines

Mar 8

OPO6:00 amPorto

32h 14m

2 stops

PHL9:14 amPhiladelphia

Mar 15

PHL7:45 pmPhiladelphia

35h 55m

2 stops

OPO11:40 amPorto

$809

Fly from

Fly to

Route

Depart

Return

Price

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sun 3/8

11:00 am-5:00 pm

2 stops34h 00m

Philadelphia

Sun 3/15

6:30 pm-11:35 am

1 stop13h 05m

$736

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sun 3/8

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Sun 3/15

6:40 pm-3:15 pm

1 stop16h 35m

$750

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 3/12

4:10 pm-10:44 pm

3 stops34h 34m

Philadelphia

Tue 3/17

6:40 pm-10:30 am

3 stops35h 50m

$754

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sun 3/8

6:15 am-9:44 pm

2 stops20h 29m

Philadelphia

Sun 3/15

3:30 pm-12:50 pm

2 stops17h 20m

$771

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sun 3/8

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Sun 3/15

6:40 pm-11:40 am

1 stop13h 00m

$785

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sun 3/8

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Sun 3/15

6:40 pm-11:40 am

1 stop13h 00m

$787

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 3/12

6:00 am-5:05 pm

1 stop15h 05m

Philadelphia

Tue 3/17

12:15 pm-9:30 am

2 stops17h 15m

$799

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 3/12

6:00 am-3:49 pm

2 stops37h 49m

Philadelphia

Tue 3/17

3:30 pm-12:05 pm

2 stops16h 35m

$803

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 3/12

6:00 am-5:05 pm

1 stop15h 05m

Philadelphia

Tue 3/17

6:40 pm-2:45 pm

1 stop16h 05m

$804

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sun 3/8

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Sun 3/15

6:40 pm-6:30 pm

2 stops19h 50m

$808

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	33h 28m
Direct flights	None

The fastest flight from Porto to Philadelphia takes 33h 28m

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 33h 28m 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

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Dewey Beach

Reading

Avalon

North Wildwood

Dover

Lewes

Stone Harbor

Essington

Vineland

New Castle

Elkton

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.