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

American Airlines 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.

$382 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

Enter your travel dates to find the best prices.

5:40 pm - 7:35 am

OPO

PHL

18h 55m

1 stop

4:20 pm - 10:55 am

PHL

OPO

13h 35m

1 stop

$821TAP AIR PORTUGAL

Sat, May 2 - Sat, May 9

5:50 pm - 7:35 am

OPO

PHL

18h 45m

1 stop

6:00 am - 10:30 am

PHL

OPO

23h 30m

1 stop

$824TAP AIR PORTUGAL

Sun, May 3 - Sun, May 10

7:00 am - 9:40 pm

OPO

PHL

19h 40m

2 stops

4:20 pm - 10:55 am

PHL

OPO

13h 35m

1 stop

$840TAP AIR PORTUGAL

Sat, May 2 - Sat, May 9

5:55 am - 7:04 pm

OPO

PHL

18h 09m

2 stops

6:00 am - 8:30 am

PHL

OPO

21h 30m

2 stops

$853Delta

Sat, May 2 - Sat, May 9

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

5:40 pm - 11:10 am

PHL

OPO

12h 30m

1 stop

$863Lufthansa

Tue, May 5 - Tue, May 12

5:50 pm - 7:35 am

OPO

PHL

18h 45m

1 stop

8:25 am - 9:00 am

PHL

OPO

19h 35m

2 stops

$864TAP AIR PORTUGAL

Sun, May 3 - Sun, May 10

6:00 am - 10:28 am

OPO

PHL

33h 28m

2 stops

6:17 am - 9:45 am

PHL

OPO

22h 28m

2 stops

$867United Airlines

Sat, Apr 18 - Sat, Apr 25

6:00 am - 9:59 am

OPO

PHL

32h 59m

2 stops

5:05 pm - 11:15 am

PHL

OPO

37h 10m

2 stops

$868United Airlines

Sun, May 3 - Sun, May 10

6:00 am - 9:54 am

OPO

PHL

32h 54m

2 stops

5:40 pm - 11:10 am

PHL

OPO

12h 30m

1 stop

$872United Airlines

Tue, May 5 - Tue, May 12

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

4:20 pm - 7:00 am

PHL

OPO

33h 40m

2 stops

$888Multiple Airlines

Mon, May 25 - Tue, Jun 9

TAP AIR PORTUGAL flights from Porto to Philadelphia

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

TAP AIR PORTUGAL

May 2

OPO5:40 pmPorto

18h 55m

1 stop

PHL7:35 amPhiladelphia

May 9

PHL4:20 pmPhiladelphia

13h 35m

1 stop

OPO10:55 amPorto

$821

TAP AIR PORTUGAL

May 3

OPO5:50 pmPorto

18h 45m

1 stop

PHL7:35 amPhiladelphia

May 10

PHL6:00 amPhiladelphia

23h 30m

1 stop

OPO10:30 amPorto

$824

TAP AIR PORTUGAL

May 2

OPO7:00 amPorto

19h 40m

2 stops

PHL9:40 pmPhiladelphia

May 9

PHL4:20 pmPhiladelphia

13h 35m

1 stop

OPO10:55 amPorto

$840

United Airlines flights from Porto to Philadelphia

Our best United Airlines deals on Porto to Philadelphia flight tickets

United Airlines

Apr 18

OPO6:00 amPorto

33h 28m

2 stops

PHL10:28 amPhiladelphia

Apr 25

PHL6:17 amPhiladelphia

22h 28m

2 stops

OPO9:45 amPorto

$867

United Airlines

May 3

OPO6:00 amPorto

32h 59m

2 stops

PHL9:59 amPhiladelphia

May 10

PHL5:05 pmPhiladelphia

37h 10m

2 stops

OPO11:15 amPorto

$868

United Airlines

May 5

OPO6:00 amPorto

32h 54m

2 stops

PHL9:54 amPhiladelphia

May 12

PHL5:40 pmPhiladelphia

12h 30m

1 stop

OPO11:10 amPorto

$872

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sat 5/2

5:40 pm-7:35 am

1 stop18h 55m

Philadelphia

Sat 5/9

4:20 pm-10:55 am

1 stop13h 35m

$821

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sun 5/3

5:50 pm-7:35 am

1 stop18h 45m

Philadelphia

Sun 5/10

6:00 am-10:30 am

1 stop23h 30m

$824

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sat 5/2

7:00 am-9:40 pm

2 stops19h 40m

Philadelphia

Sat 5/9

4:20 pm-10:55 am

1 stop13h 35m

$840

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sat 5/2

5:55 am-7:04 pm

2 stops18h 09m

Philadelphia

Sat 5/9

6:00 am-8:30 am

2 stops21h 30m

$853

Quickest round-trip

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Tue 5/5

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Tue 5/12

5:40 pm-11:10 am

1 stop12h 30m

$863

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sun 5/3

5:50 pm-7:35 am

1 stop18h 45m

Philadelphia

Sun 5/10

8:25 am-9:00 am

2 stops19h 35m

$864

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sat 4/18

6:00 am-10:28 am

2 stops33h 28m

Philadelphia

Sat 4/25

6:17 am-9:45 am

2 stops22h 28m

$867

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sun 5/3

6:00 am-9:59 am

2 stops32h 59m

Philadelphia

Sun 5/10

5:05 pm-11:15 am

2 stops37h 10m

$868

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Tue 5/5

6:00 am-9:54 am

2 stops32h 54m

Philadelphia

Tue 5/12

5:40 pm-11:10 am

1 stop12h 30m

$872

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mon 5/25

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Tue 6/9

4:20 pm-7:00 am

2 stops33h 40m

$888

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	15h 05m
Direct flights	None

The fastest flight from Porto to Philadelphia takes 15h 05m

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 05m 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

New Castle

Vineland

Pottstown

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.