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

British Airways, TAP AIR PORTUGAL, and Iberia are the most popular carriers 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.

$328 Cheap Flights from Porto to Philadelphia in 2025/26

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Find the cheapest flights from Porto to Philadelphia

Round-trip

One-way

Last minute

Cheap round-trip flights

5:25 pm - 11:36 pmOPO-PHL

34h 11m3 stops

5:33 am - 12:50 pmPHL-OPO

26h 17m3 stops

$647

Find Deal

Tue, Oct 28 - Tue, Nov 4

6:45 am - 5:00 pmOPO-PHL

14h 15m1 stop

5:30 pm - 2:55 pmPHL-OPO

16h 25m1 stop

$684

Find Deal

Wed, Oct 29 - Wed, Nov 5

11:35 am - 9:32 pmOPO-PHL

14h 57m2 stops

1:42 pm - 10:30 amPHL-OPO

16h 48m2 stops

$685

Find Deal

Tue, Oct 21 - Mon, Oct 27

8:20 am - 3:40 pmOPO-PHL

12h 20m1 stop

7:55 pm - 4:00 pmPHL-OPO

15h 05m1 stop

$686Iberia

Find Deal

Mon, Nov 3 - Thu, Nov 27

6:05 am - 9:32 pmOPO-PHL

20h 27m2 stops

1:25 pm - 3:25 pmPHL-OPO

21h 00m2 stops

$695Delta

Find Deal

Tue, Nov 4 - Fri, Nov 28

5:00 am - 12:05 amOPO-PHL

23h 05m2 stops

6:02 am - 10:30 amPHL-OPO

23h 28m2 stops

$701Delta

Find Deal

Sun, Nov 2 - Wed, Nov 26

9:55 pm - 3:20 pmOPO-PHL

22h 25m1 stop

6:35 pm - 11:45 amPHL-OPO

36h 10m2 stops

$702Iberia

Find Deal

Thu, Feb 19 - Mon, Feb 23

11:25 am - 11:05 pmOPO-PHL

16h 40m2 stops

1:25 pm - 10:30 amPHL-OPO

16h 05m2 stops

$703Air France

Find Deal

Mon, Nov 3 - Wed, Nov 26

9:55 am - 1:05 pmOPO-PHL

32h 10m1 stop

7:35 pm - 5:35 pmPHL-OPO

18h 00m1 stop

$706British Airways

Find Deal

Thu, Oct 23 - Tue, Oct 28

8:20 pm - 5:53 pmOPO-PHL

26h 33m2 stops

7:35 pm - 5:35 pmPHL-OPO

18h 00m1 stop

$712British Airways

Find Deal

Wed, Oct 22 - Tue, Oct 28

British Airways flights from Porto to Philadelphia

Our best British Airways deals on Porto to Philadelphia flight tickets

British Airways

Oct 23

OPO9:55 amPorto

32h 10m

1 stop

PHL1:05 pmPhiladelphia

Oct 28

PHL7:35 pmPhiladelphia

18h 00m

1 stop

OPO5:35 pmPorto

$706

Find similar

British Airways

Oct 22

OPO8:20 pmPorto

26h 33m

2 stops

PHL5:53 pmPhiladelphia

Oct 28

PHL7:35 pmPhiladelphia

18h 00m

1 stop

OPO5:35 pmPorto

$712

Find similar

British Airways

Oct 20

OPO9:10 pmPorto

23h 25m

1 stop

PHL3:35 pmPhiladelphia

Oct 28

PHL7:35 pmPhiladelphia

18h 00m

1 stop

OPO5:35 pmPorto

$724

Find similar

United Airlines flights from Porto to Philadelphia

Our best United Airlines deals on Porto to Philadelphia flight tickets

United Airlines

Oct 21

OPO6:00 amPorto

15h 00m

1 stop

PHL4:00 pmPhiladelphia

Oct 28

PHL12:22 pmPhiladelphia

17h 08m

2 stops

OPO9:30 amPorto

$731

Find similar

United Airlines

Oct 23

OPO6:00 amPorto

23h 45m

2 stops

PHL12:45 amPhiladelphia

Oct 30

PHL10:05 amPhiladelphia

19h 25m

2 stops

OPO9:30 amPorto

$737

Find similar

United Airlines

Nov 4

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

Nov 29

PHL6:00 amPhiladelphia

24h 40m

2 stops

OPO11:40 amPorto

$738

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Tue 10/28

5:25 pm-11:36 pm

3 stops34h 11m

Philadelphia

Tue 11/4

5:33 am-12:50 pm

3 stops26h 17m

$647

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Wed 10/29

6:45 am-5:00 pm

1 stop14h 15m

Philadelphia

Wed 11/5

5:30 pm-2:55 pm

1 stop16h 25m

$684

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Tue 10/21

11:35 am-9:32 pm

2 stops14h 57m

Philadelphia

Mon 10/27

1:42 pm-10:30 am

2 stops16h 48m

$685

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mon 11/3

8:20 am-3:40 pm

1 stop12h 20m

Philadelphia

Thu 11/27

7:55 pm-4:00 pm

1 stop15h 05m

$686

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Tue 11/4

6:05 am-9:32 pm

2 stops20h 27m

Philadelphia

Fri 11/28

1:25 pm-3:25 pm

2 stops21h 00m

$695

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Sun 11/2

5:00 am-12:05 am

2 stops23h 05m

Philadelphia

Wed 11/26

6:02 am-10:30 am

2 stops23h 28m

$701

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 2/19

9:55 pm-3:20 pm

1 stop22h 25m

Philadelphia

Mon 2/23

6:35 pm-11:45 am

2 stops36h 10m

$702

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mon 11/3

11:25 am-11:05 pm

2 stops16h 40m

Philadelphia

Wed 11/26

1:25 pm-10:30 am

2 stops16h 05m

$703

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 10/23

9:55 am-1:05 pm

1 stop32h 10m

Philadelphia

Tue 10/28

7:35 pm-5:35 pm

1 stop18h 00m

$706

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Wed 10/22

8:20 pm-5:53 pm

2 stops26h 33m

Philadelphia

Tue 10/28

7:35 pm-5:35 pm

1 stop18h 00m

$712

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

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from Porto to Philadelphia is on a Thursday. Travelers who choose to depart for Philadelphia on a Thursday will often find tickets for as low as $762. On the other hand, Tuesday is the most expensive day to depart from Porto because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $778.

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

Direct flights	None

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 12h 20m 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

Ocean City

Wildwood Crest

King of Prussia

Dewey Beach

Reading

Newark

Cherry Hill

North Wildwood

Dover

Avalon

Lewes

Stone Harbor

Vineland

Essington

Pottstown

New Castle

West Chester

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.