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.

$369 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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5:50 pm - 7:34 am

OPO

PHL

18h 44m

1 stop

6:00 am - 10:55 am

PHL

OPO

23h 55m

1 stop

$844TAP AIR PORTUGAL

Mon, May 11 - Mon, May 18

6:00 pm - 7:40 am

OPO

PHL

18h 40m

1 stop

8:25 am - 10:05 am

PHL

OPO

20h 40m

1 stop

$847TAP AIR PORTUGAL

Sun, Apr 12 - Sun, Apr 19

6:00 pm - 7:40 am

OPO

PHL

18h 40m

1 stop

6:00 am - 10:05 am

PHL

OPO

23h 05m

1 stop

$849TAP AIR PORTUGAL

Sun, Apr 12 - Sun, Apr 19

9:15 pm - 10:38 pm

OPO

PHL

30h 23m

2 stops

6:00 am - 10:05 am

PHL

OPO

23h 05m

1 stop

$870TAP AIR PORTUGAL

Sun, Apr 12 - Sun, Apr 19

9:15 pm - 10:38 pm

OPO

PHL

30h 23m

2 stops

8:25 am - 10:05 am

PHL

OPO

20h 40m

1 stop

$871TAP AIR PORTUGAL

Sun, Apr 12 - Sun, Apr 19

9:00 am - 10:38 pm

OPO

PHL

18h 38m

2 stops

8:25 am - 10:10 am

PHL

OPO

20h 45m

1 stop

$873TAP AIR PORTUGAL

Mon, Apr 13 - Mon, Apr 20

5:50 pm - 7:35 am

OPO

PHL

18h 45m

1 stop

6:33 pm - 10:10 am

PHL

OPO

10h 37m

1 stop

$881Multiple Airlines

Mon, Apr 13 - Mon, Apr 20

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

5:40 pm - 3:40 pm

PHL

OPO

17h 00m

1 stop

$905United Airlines

Thu, May 7 - Sun, May 10

6:30 am - 10:12 pm

OPO

PHL

20h 42m

2 stops

12:29 pm - 3:25 pm

PHL

OPO

21h 56m

2 stops

$927Delta

Mon, Apr 13 - Mon, Apr 20

6:35 pm - 4:05 pm

OPO

PHL

50h 30m

2 stops

5:40 pm - 6:15 pm

PHL

OPO

19h 35m

2 stops

$932Multiple Airlines

Sun, Apr 12 - Sun, Apr 19

United Airlines flights from Porto to Philadelphia

Our best United Airlines deals on Porto to Philadelphia flight tickets

United Airlines

May 7

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

May 10

PHL5:40 pmPhiladelphia

17h 00m

1 stop

OPO3:40 pmPorto

$905

United Airlines

May 7

OPO12:35 pmPorto

17h 24m

2 stops

PHL12:59 amPhiladelphia

May 10

PHL5:40 pmPhiladelphia

17h 00m

1 stop

OPO3:40 pmPorto

$934

United Airlines

May 11

OPO6:00 amPorto

17h 58m

2 stops

PHL6:58 pmPhiladelphia

May 18

PHL8:30 pmPhiladelphia

38h 15m

2 stops

OPO3:45 pmPorto

$940

TAP AIR PORTUGAL flights from Porto to Philadelphia

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

TAP AIR PORTUGAL

May 11

OPO5:50 pmPorto

18h 44m

1 stop

PHL7:34 amPhiladelphia

May 18

PHL6:00 amPhiladelphia

23h 55m

1 stop

OPO10:55 amPorto

$844

TAP AIR PORTUGAL

Apr 12

OPO6:00 pmPorto

18h 40m

1 stop

PHL7:40 amPhiladelphia

Apr 19

PHL8:25 amPhiladelphia

20h 40m

1 stop

OPO10:05 amPorto

$847

TAP AIR PORTUGAL

Apr 12

OPO6:00 pmPorto

18h 40m

1 stop

PHL7:40 amPhiladelphia

Apr 19

PHL6:00 amPhiladelphia

23h 05m

1 stop

OPO10:05 amPorto

$849

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mon 5/11

5:50 pm-7:34 am

1 stop18h 44m

Philadelphia

Mon 5/18

6:00 am-10:55 am

1 stop23h 55m

$844

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sun 4/12

6:00 pm-7:40 am

1 stop18h 40m

Philadelphia

Sun 4/19

8:25 am-10:05 am

1 stop20h 40m

$847

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sun 4/12

6:00 pm-7:40 am

1 stop18h 40m

Philadelphia

Sun 4/19

6:00 am-10:05 am

1 stop23h 05m

$849

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sun 4/12

9:15 pm-10:38 pm

2 stops30h 23m

Philadelphia

Sun 4/19

6:00 am-10:05 am

1 stop23h 05m

$870

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sun 4/12

9:15 pm-10:38 pm

2 stops30h 23m

Philadelphia

Sun 4/19

8:25 am-10:05 am

1 stop20h 40m

$871

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mon 4/13

9:00 am-10:38 pm

2 stops18h 38m

Philadelphia

Mon 4/20

8:25 am-10:10 am

1 stop20h 45m

$873

Quickest round-trip

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mon 4/13

5:50 pm-7:35 am

1 stop18h 45m

Philadelphia

Mon 4/20

6:33 pm-10:10 am

1 stop10h 37m

$881

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 5/7

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Sun 5/10

5:40 pm-3:40 pm

1 stop17h 00m

$905

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mon 4/13

6:30 am-10:12 pm

2 stops20h 42m

Philadelphia

Mon 4/20

12:29 pm-3:25 pm

2 stops21h 56m

$927

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sun 4/12

6:35 pm-4:05 pm

2 stops50h 30m

Philadelphia

Sun 4/19

5:40 pm-6:15 pm

2 stops19h 35m

$932

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

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	18h 44m
Direct flights	None

The fastest flight from Porto to Philadelphia takes 18h 44m

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 18h 44m 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

New Castle

Essington

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.