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.

$422 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.

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

10:32 am - 6:55 am

PHL

OPO

15h 23m

2 stops

$893United Airlines

Thu, May 28 - Wed, Jun 3

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

10:05 am - 7:00 am

PHL

OPO

15h 55m

1 stop

$897United Airlines

Thu, May 28 - Wed, Jun 3

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

5:40 pm - 11:20 am

PHL

OPO

12h 40m

1 stop

$899Lufthansa

Wed, Jun 17 - Wed, Jun 24

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

3:10 pm - 3:40 pm

PHL

OPO

19h 30m

2 stops

$900United Airlines

Wed, Jun 17 - Wed, Jun 24

6:00 am - 12:59 am

OPO

PHL

23h 59m

2 stops

3:10 pm - 3:40 pm

PHL

OPO

19h 30m

2 stops

$906United Airlines

Wed, Jun 17 - Wed, Jun 24

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

6:00 am - 7:00 am

PHL

OPO

20h 00m

2 stops

$909Multiple Airlines

Thu, May 28 - Wed, Jun 3

5:55 am - 5:51 pm

OPO

PHL

16h 56m

2 stops

6:31 pm - 3:25 pm

PHL

OPO

15h 54m

2 stops

$911Air France

Thu, May 28 - Wed, Jun 3

5:55 am - 5:51 pm

OPO

PHL

16h 56m

2 stops

6:31 pm - 3:25 pm

PHL

OPO

15h 54m

2 stops

$912Air France

Thu, May 28 - Wed, Jun 3

8:40 am - 10:43 pm

OPO

PHL

19h 03m

2 stops

10:32 am - 7:00 am

PHL

OPO

15h 28m

2 stops

$917Multiple Airlines

Fri, May 29 - Wed, Jun 3

12:10 pm - 4:05 pm

OPO

PHL

32h 55m

1 stop

3:25 pm - 7:00 am

PHL

OPO

10h 35m

1 stop

$918United Airlines

Thu, May 28 - Wed, Jun 3

United Airlines flights from Porto to Philadelphia

Our best United Airlines deals on Porto to Philadelphia flight tickets

United Airlines

May 28

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

Jun 3

PHL10:32 amPhiladelphia

15h 23m

2 stops

OPO6:55 amPorto

$893

United Airlines

May 28

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

Jun 3

PHL10:05 amPhiladelphia

15h 55m

1 stop

OPO7:00 amPorto

$897

United Airlines

Jun 17

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

Jun 24

PHL3:10 pmPhiladelphia

19h 30m

2 stops

OPO3:40 pmPorto

$900

Air France flights from Porto to Philadelphia

Our best Air France deals on Porto to Philadelphia flight tickets

Air France

May 28

OPO5:55 amPorto

16h 56m

2 stops

PHL5:51 pmPhiladelphia

Jun 3

PHL6:31 pmPhiladelphia

15h 54m

2 stops

OPO3:25 pmPorto

$911

Air France

May 28

OPO5:55 amPorto

16h 56m

2 stops

PHL5:51 pmPhiladelphia

Jun 3

PHL6:31 pmPhiladelphia

15h 54m

2 stops

OPO3:25 pmPorto

$912

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 5/28

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Wed 6/3

10:32 am-6:55 am

2 stops15h 23m

$893

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 5/28

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Wed 6/3

10:05 am-7:00 am

1 stop15h 55m

$897

Quickest round-trip

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Wed 6/17

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Wed 6/24

5:40 pm-11:20 am

1 stop12h 40m

$899

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Wed 6/17

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Wed 6/24

3:10 pm-3:40 pm

2 stops19h 30m

$900

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Wed 6/17

6:00 am-12:59 am

2 stops23h 59m

Philadelphia

Wed 6/24

3:10 pm-3:40 pm

2 stops19h 30m

$906

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 5/28

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Wed 6/3

6:00 am-7:00 am

2 stops20h 00m

$909

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 5/28

5:55 am-5:51 pm

2 stops16h 56m

Philadelphia

Wed 6/3

6:31 pm-3:25 pm

2 stops15h 54m

$911

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 5/28

5:55 am-5:51 pm

2 stops16h 56m

Philadelphia

Wed 6/3

6:31 pm-3:25 pm

2 stops15h 54m

$912

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Fri 5/29

8:40 am-10:43 pm

2 stops19h 03m

Philadelphia

Wed 6/3

10:32 am-7:00 am

2 stops15h 28m

$917

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 5/28

12:10 pm-4:05 pm

1 stop32h 55m

Philadelphia

Wed 6/3

3:25 pm-7:00 am

1 stop10h 35m

$918

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 4% 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.

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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 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

Rehoboth Beach

Cape May

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Dewey Beach

Reading

Avalon

Dover

North Wildwood

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.