What airlines fly to Philadelphia?

TAP AIR PORTUGAL, United Airlines and Delta are the top three most popular airlines that fly to Philadelphia from Porto according to our data. TAP AIR PORTUGAL is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 3 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.

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.

$404 Cheap Flights from Porto to Philadelphia in 2026

Find the cheapest flights from Porto to Philadelphia

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:20 am - 3:50 pmOPO Porto-PHL Philadelphia

12h 30m1 stop Madrid Barajas

6:35 pm - 5:50 pmPHL Philadelphia-OPO Porto

18h 15m1 stop London Heathrow

$829Multiple Airlines

Tue, Jan 12 - Tue, Jan 19

8:20 am - 5:25 pmOPO Porto-PHL Philadelphia

14h 05m1 stop Madrid Barajas

8:20 pm - 8:00 pmPHL Philadelphia-OPO Porto

18h 40m1 stop Madrid Barajas

$836Iberia

Thu, Oct 8 - Mon, Oct 12

8:20 am - 3:50 pmOPO Porto-PHL Philadelphia

12h 30m1 stop Madrid Barajas

4:25 pm - 11:45 amPHL Philadelphia-OPO Porto

14h 20m2 stops Boston Logan Intl Madrid Barajas

$846Iberia

Sun, Jan 24 - Sat, Jan 30

8:20 am - 3:50 pmOPO Porto-PHL Philadelphia

12h 30m1 stop Madrid Barajas

7:50 pm - 11:45 amPHL Philadelphia-OPO Porto

10h 55m1 stop Madrid Barajas

$846Iberia

Sun, Jan 24 - Sat, Jan 30

8:40 pm - 5:45 pmOPO Porto-PHL Philadelphia

26h 05m1 stop Madrid Barajas

4:20 pm - 7:40 amPHL Philadelphia-OPO Porto

10h 20m1 stop Madrid Barajas

$847Iberia

Wed, Sep 9 - Wed, Sep 16

8:40 pm - 5:25 pmOPO Porto-PHL Philadelphia

25h 45m1 stop Madrid Barajas

8:40 pm - 8:00 pmPHL Philadelphia-OPO Porto

19h 20m1 stop Madrid Barajas

$848Iberia

Thu, Oct 22 - Mon, Oct 26

5:55 pm - 9:31 amOPO Porto-PHL Philadelphia

20h 36m1 stop Boston Logan Intl

3:57 pm - 10:55 amPHL Philadelphia-OPO Porto

13h 58m1 stop Boston Logan Intl

$854TAP AIR PORTUGAL

Mon, Sep 14 - Mon, Sep 21

5:55 pm - 9:31 amOPO Porto-PHL Philadelphia

20h 36m1 stop Boston Logan Intl

3:57 pm - 10:55 amPHL Philadelphia-OPO Porto

13h 58m1 stop Boston Logan Intl

$861TAP AIR PORTUGAL

Mon, Sep 14 - Mon, Sep 21

5:55 pm - 9:31 amOPO Porto-PHL Philadelphia

20h 36m1 stop Boston Logan Intl

3:57 pm - 10:55 amPHL Philadelphia-OPO Porto

13h 58m1 stop Boston Logan Intl

$862TAP AIR PORTUGAL

Mon, Sep 14 - Mon, Sep 21

8:40 pm - 1:10 pmOPO Porto-PHL Philadelphia

21h 30m2 stops Madrid Barajas Nice Côte d'Azur

4:20 pm - 7:40 amPHL Philadelphia-OPO Porto

10h 20m1 stop Madrid Barajas

$870Iberia

Wed, Sep 9 - Wed, Sep 16

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United Airlines flights from Porto to Philadelphia

Our best United Airlines deals on Porto to Philadelphia flight tickets

United Airlines

Sep 14

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

Sep 21

PHL10:30 amPhiladelphia

15h 25m

2 stops

OPO6:55 amPorto

$901

United Airlines

Sep 14

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

Sep 21

PHL5:40 pmPhiladelphia

12h 35m

1 stop

OPO11:15 amPorto

$905

United Airlines

Jan 14

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

Jan 21

PHL5:40 pmPhiladelphia

13h 05m

1 stop

OPO11:45 amPorto

$906

TAP AIR PORTUGAL flights from Porto to Philadelphia

Our best TAP AIR PORTUGAL deals on Porto to Philadelphia flight tickets

TAP AIR PORTUGAL

Sep 14

OPO5:55 pmPorto

20h 36m

1 stop

PHL9:31 amPhiladelphia

Sep 21

PHL3:57 pmPhiladelphia

13h 58m

1 stop

OPO10:55 amPorto

$854

TAP AIR PORTUGAL

Sep 14

OPO5:55 pmPorto

20h 36m

1 stop

PHL9:31 amPhiladelphia

Sep 21

PHL3:57 pmPhiladelphia

13h 58m

1 stop

OPO10:55 amPorto

$861

TAP AIR PORTUGAL

Sep 14

OPO5:55 pmPorto

20h 36m

1 stop

PHL9:31 amPhiladelphia

Sep 21

PHL3:57 pmPhiladelphia

13h 58m

1 stop

OPO10:55 amPorto

$862

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoPhiladelphia

OPO Porto - PHL Philadelphia

OPOPHL

Porto

Tue 1/12

8:20 am-3:50 pm

1 stop12h 30m

Philadelphia

Tue 1/19

6:35 pm-5:50 pm

1 stop18h 15m

$829

PortoPhiladelphia

OPO Porto - PHL Philadelphia

OPOPHL

Porto

Thu 10/8

8:20 am-5:25 pm

1 stop14h 05m

Philadelphia

Mon 10/12

8:20 pm-8:00 pm

1 stop18h 40m

$836

PortoPhiladelphia

OPO Porto - PHL Philadelphia

OPOPHL

Porto

Sun 1/24

8:20 am-3:50 pm

1 stop12h 30m

Philadelphia

Sat 1/30

4:25 pm-11:45 am

2 stops14h 20m

$846

Quickest round-trip

PortoPhiladelphia

OPO Porto - PHL Philadelphia

OPOPHL

Porto

Sun 1/24

8:20 am-3:50 pm

1 stop12h 30m

Philadelphia

Sat 1/30

7:50 pm-11:45 am

1 stop10h 55m

$846

PortoPhiladelphia

OPO Porto - PHL Philadelphia

OPOPHL

Porto

Wed 9/9

8:40 pm-5:45 pm

1 stop26h 05m

Philadelphia

Wed 9/16

4:20 pm-7:40 am

1 stop10h 20m

$847

PortoPhiladelphia

OPO Porto - PHL Philadelphia

OPOPHL

Porto

Thu 10/22

8:40 pm-5:25 pm

1 stop25h 45m

Philadelphia

Mon 10/26

8:40 pm-8:00 pm

1 stop19h 20m

$848

PortoPhiladelphia

OPO Porto - PHL Philadelphia

OPOPHL

Porto

Mon 9/14

5:55 pm-9:31 am

1 stop20h 36m

Philadelphia

Mon 9/21

3:57 pm-10:55 am

1 stop13h 58m

$854

PortoPhiladelphia

OPO Porto - PHL Philadelphia

OPOPHL

Porto

Mon 9/14

5:55 pm-9:31 am

1 stop20h 36m

Philadelphia

Mon 9/21

3:57 pm-10:55 am

1 stop13h 58m

$861

PortoPhiladelphia

OPO Porto - PHL Philadelphia

OPOPHL

Porto

Mon 9/14

5:55 pm-9:31 am

1 stop20h 36m

Philadelphia

Mon 9/21

3:57 pm-10:55 am

1 stop13h 58m

$862

PortoPhiladelphia

OPO Porto - PHL Philadelphia

OPOPHL

Porto

Wed 9/9

8:40 pm-1:10 pm

2 stops21h 30m

Philadelphia

Wed 9/16

4:20 pm-7:40 am

1 stop10h 20m

$870

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	31h 57m
Direct flights	None

The fastest flight from Porto to Philadelphia takes 31h 57m

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 31h 57m 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

Essington

Dover

Dewey Beach

North Wildwood

New Castle

Chester

Avalon

Vineland

Lewes

Stone Harbor

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.