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.

$449 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.

12:25 pm - 5:16 pm

OPO

PHL

33h 51m

2 stops

9:17 pm - 11:45 am

PHL

OPO

33h 28m

2 stops

$811American Airlines

Do, Nov 26 - So, Nov 29

12:25 pm - 3:05 pm

OPO

PHL

31h 40m

2 stops

4:15 pm - 7:40 am

PHL

OPO

10h 25m

1 stop

$820American Airlines

Do, Aug 27 - Mi, Sep 23

12:25 pm - 3:05 pm

OPO

PHL

31h 40m

2 stops

1:51 pm - 4:00 pm

PHL

OPO

21h 09m

2 stops

$828American Airlines

Do, Aug 27 - Mi, Sep 16

8:20 am - 7:19 pm

OPO

PHL

15h 59m

2 stops

4:15 pm - 7:40 am

PHL

OPO

10h 25m

1 stop

$830American Airlines

Mi, Sep 2 - Mo, Sep 28

8:20 am - 5:40 pm

OPO

PHL

14h 20m

1 stop

4:15 pm - 7:40 am

PHL

OPO

10h 25m

1 stop

$840Iberia

Mi, Aug 26 - Di, Sep 15

8:55 pm - 1:40 pm

OPO

PHL

21h 45m

2 stops

6:45 pm - 7:30 pm

PHL

OPO

19h 45m

1 stop

$841British Airways

Di, Aug 25 - Di, Sep 15

8:20 am - 5:40 pm

OPO

PHL

14h 20m

1 stop

10:20 pm - 7:40 am

PHL

OPO

28h 20m

2 stops

$849Iberia

Mi, Aug 26 - Mo, Sep 14

12:25 pm - 12:59 am

OPO

PHL

17h 34m

2 stops

4:15 pm - 7:40 am

PHL

OPO

10h 25m

1 stop

$851American Airlines

Do, Sep 3 - Mi, Sep 23

8:40 pm - 5:40 pm

OPO

PHL

26h 00m

1 stop

10:20 pm - 7:40 am

PHL

OPO

28h 20m

2 stops

$860Iberia

Mo, Aug 24 - Mo, Sep 14

8:40 pm - 5:40 pm

OPO

PHL

26h 00m

1 stop

5:30 pm - 9:20 pm

PHL

OPO

22h 50m

2 stops

$864Iberia

Mo, Aug 31 - So, Sep 27

Air Canada flights from Porto to Philadelphia

Our best Air Canada deals on Porto to Philadelphia flight tickets

Air Canada

Jun 18

OPO11:50 amPorto

31h 59m

1 stop

PHL2:49 pmPhiladelphia

Jun 24

PHL10:05 amPhiladelphia

15h 55m

1 stop

OPO7:00 amPorto

$891

Air Canada

Aug 25

OPO6:00 amPorto

20h 34m

2 stops

PHL9:34 pmPhiladelphia

Sep 13

PHL10:05 amPhiladelphia

27h 10m

2 stops

OPO6:15 pmPorto

$895

Air Canada

Jun 18

OPO11:50 amPorto

27h 19m

2 stops

PHL10:09 amPhiladelphia

Jun 24

PHL6:00 amPhiladelphia

20h 00m

2 stops

OPO7:00 amPorto

$905

United Airlines flights from Porto to Philadelphia

Our best United Airlines deals on Porto to Philadelphia flight tickets

United Airlines

Sep 4

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

Sep 30

PHL6:15 amPhiladelphia

22h 30m

2 stops

OPO9:45 amPorto

$888

United Airlines

Jun 18

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

Jun 24

PHL6:10 amPhiladelphia

19h 50m

2 stops

OPO7:00 amPorto

$893

United Airlines

Aug 24

OPO12:10 pmPorto

32h 55m

1 stop

PHL4:05 pmPhiladelphia

Sep 20

PHL10:30 amPhiladelphia

15h 25m

2 stops

OPO6:55 amPorto

$908

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Do 11/26

12:25 pm-5:16 pm

2 stops33h 51m

Philadelphia

So 11/29

9:17 pm-11:45 am

2 stops33h 28m

$811

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Do 8/27

12:25 pm-3:05 pm

2 stops31h 40m

Philadelphia

Mi 9/23

4:15 pm-7:40 am

1 stop10h 25m

$820

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Do 8/27

12:25 pm-3:05 pm

2 stops31h 40m

Philadelphia

Mi 9/16

1:51 pm-4:00 pm

2 stops21h 09m

$828

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mi 9/2

8:20 am-7:19 pm

2 stops15h 59m

Philadelphia

Mo 9/28

4:15 pm-7:40 am

1 stop10h 25m

$830

Quickest round-trip

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mi 8/26

8:20 am-5:40 pm

1 stop14h 20m

Philadelphia

Di 9/15

4:15 pm-7:40 am

1 stop10h 25m

$840

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Di 8/25

8:55 pm-1:40 pm

2 stops21h 45m

Philadelphia

Di 9/15

6:45 pm-7:30 pm

1 stop19h 45m

$841

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mi 8/26

8:20 am-5:40 pm

1 stop14h 20m

Philadelphia

Mo 9/14

10:20 pm-7:40 am

2 stops28h 20m

$849

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Do 9/3

12:25 pm-12:59 am

2 stops17h 34m

Philadelphia

Mi 9/23

4:15 pm-7:40 am

1 stop10h 25m

$851

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mo 8/24

8:40 pm-5:40 pm

1 stop26h 00m

Philadelphia

Mo 9/14

10:20 pm-7:40 am

2 stops28h 20m

$860

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mo 8/31

8:40 pm-5:40 pm

1 stop26h 00m

Philadelphia

So 9/27

5:30 pm-9:20 pm

2 stops22h 50m

$864

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 2% 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	19h 30m
Direct flights	None

The fastest flight from Porto to Philadelphia takes 19h 30m

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 19h 30m 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

Dover

North Wildwood

Avalon

Essington

Lewes

Stone Harbor

New Castle

Vineland

Chester

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.