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.

$387 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.

10:30 pm - 10:43 pm

OPO

PHL

29h 13m

2 stops

6:00 am - 10:30 am

PHL

OPO

23h 30m

1 stop

$864TAP AIR PORTUGAL

Tue, Oct 13 - Sun, Oct 18

7:35 am - 9:45 am

OPO

PHL

31h 10m

2 stops

3:25 pm - 10:50 am

PHL

OPO

14h 25m

2 stops

$873Multiple Airlines

Tue, Oct 13 - Sun, Oct 18

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

1:00 pm - 9:45 am

PHL

OPO

15h 45m

2 stops

$893United Airlines

Wed, Oct 14 - Mon, Oct 19

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

11:38 am - 6:55 am

PHL

OPO

14h 17m

2 stops

$894United 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

Tue, Oct 13 - Mon, Oct 19

6:00 am - 12:37 am

OPO

PHL

23h 37m

2 stops

1:00 pm - 9:45 am

PHL

OPO

15h 45m

2 stops

$899United Airlines

Wed, Oct 14 - Tue, Oct 20

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

5:40 pm - 11:15 am

PHL

OPO

12h 35m

1 stop

$903Lufthansa

Thu, May 21 - Thu, May 28

12:10 pm - 12:59 am

OPO

PHL

17h 49m

2 stops

5:40 pm - 11:15 am

PHL

OPO

12h 35m

1 stop

$906United Airlines

Thu, May 21 - Thu, May 28

6:00 am - 9:28 pm

OPO

PHL

20h 28m

2 stops

7:45 pm - 7:00 am

PHL

OPO

54h 15m

2 stops

$907United Airlines

Sat, Jun 6 - Sat, Jun 13

8:20 am - 5:50 pm

OPO

PHL

14h 30m

1 stop

8:30 pm - 8:00 pm

PHL

OPO

18h 30m

1 stop

$908Iberia

Tue, Oct 13 - Sun, Oct 18

TAP AIR PORTUGAL flights from Porto to Philadelphia

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

TAP AIR PORTUGAL

Oct 13

OPO10:30 pmPorto

29h 13m

2 stops

PHL10:43 pmPhiladelphia

Oct 18

PHL6:00 amPhiladelphia

23h 30m

1 stop

OPO10:30 amPorto

$864

TAP AIR PORTUGAL

May 3

OPO6:00 pmPorto

18h 35m

1 stop

PHL7:35 amPhiladelphia

May 9

PHL6:00 amPhiladelphia

23h 55m

1 stop

OPO10:55 amPorto

$872

TAP AIR PORTUGAL

Oct 12

OPO5:50 pmPorto

21h 00m

1 stop

PHL9:50 amPhiladelphia

Oct 19

PHL6:00 amPhiladelphia

23h 55m

1 stop

OPO10:55 amPorto

$926

United Airlines flights from Porto to Philadelphia

Our best United Airlines deals on Porto to Philadelphia flight tickets

United Airlines

Oct 14

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

Oct 19

PHL1:00 pmPhiladelphia

15h 45m

2 stops

OPO9:45 amPorto

$893

United Airlines

May 28

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

Jun 3

PHL11:38 amPhiladelphia

14h 17m

2 stops

OPO6:55 amPorto

$894

United Airlines

Oct 13

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

Oct 19

PHL10:05 amPhiladelphia

15h 55m

1 stop

OPO7:00 amPorto

$897

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Tue 10/13

10:30 pm-10:43 pm

2 stops29h 13m

Philadelphia

Sun 10/18

6:00 am-10:30 am

1 stop23h 30m

$864

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Tue 10/13

7:35 am-9:45 am

2 stops31h 10m

Philadelphia

Sun 10/18

3:25 pm-10:50 am

2 stops14h 25m

$873

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Wed 10/14

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Mon 10/19

1:00 pm-9:45 am

2 stops15h 45m

$893

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 5/28

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Wed 6/3

11:38 am-6:55 am

2 stops14h 17m

$894

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Tue 10/13

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Mon 10/19

10:05 am-7:00 am

1 stop15h 55m

$897

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Wed 10/14

6:00 am-12:37 am

2 stops23h 37m

Philadelphia

Tue 10/20

1:00 pm-9:45 am

2 stops15h 45m

$899

Quickest round-trip

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 5/21

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Thu 5/28

5:40 pm-11:15 am

1 stop12h 35m

$903

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 5/21

12:10 pm-12:59 am

2 stops17h 49m

Philadelphia

Thu 5/28

5:40 pm-11:15 am

1 stop12h 35m

$906

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sat 6/6

6:00 am-9:28 pm

2 stops20h 28m

Philadelphia

Sat 6/13

7:45 pm-7:00 am

2 stops54h 15m

$907

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Tue 10/13

8:20 am-5:50 pm

1 stop14h 30m

Philadelphia

Sun 10/18

8:30 pm-8:00 pm

1 stop18h 30m

$908

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

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.