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

American Airlines and British Airways 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.

$454 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.

11:50 am - 2:49 pm

OPO

PHL

31h 59m

1 stop

10:05 am - 7:00 am

PHL

OPO

15h 55m

1 stop

$891Air Canada

Thu, Jun 18 - Wed, Jun 24

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

6:10 am - 7:00 am

PHL

OPO

19h 50m

2 stops

$893United Airlines

Thu, Jun 18 - Wed, Jun 24

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

6:00 am - 6:50 am

PHL

OPO

19h 50m

2 stops

$894United Airlines

Mon, Jun 15 - Sun, Jun 21

11:50 am - 10:09 am

OPO

PHL

27h 19m

2 stops

6:00 am - 7:00 am

PHL

OPO

20h 00m

2 stops

$905Air Canada

Thu, Jun 18 - Wed, Jun 24

6:00 pm - 8:30 am

OPO

PHL

19h 30m

1 stop

8:28 am - 3:00 pm

PHL

OPO

25h 32m

2 stops

$915TAP AIR PORTUGAL

Wed, Jul 22 - Wed, Aug 19

7:20 pm - 9:19 pm

OPO

PHL

30h 59m

2 stops

10:50 am - 6:50 am

PHL

OPO

15h 00m

2 stops

$918Multiple Airlines

Mon, Jun 15 - Sun, Jun 21

5:50 pm - 8:30 am

OPO

PHL

19h 40m

1 stop

9:21 am - 5:00 pm

PHL

OPO

26h 39m

2 stops

$961TAP AIR PORTUGAL

Mon, Jul 13 - Tue, Aug 4

6:00 pm - 8:30 am

OPO

PHL

19h 30m

1 stop

8:28 am - 10:45 am

PHL

OPO

21h 17m

1 stop

$970Multiple Airlines

Wed, Jul 22 - Wed, Aug 19

10:30 pm - 8:15 pm

OPO

PHL

26h 45m

2 stops

9:21 am - 5:00 pm

PHL

OPO

26h 39m

2 stops

$978TAP AIR PORTUGAL

Tue, Jul 14 - Tue, Aug 4

10:30 pm - 9:33 pm

OPO

PHL

28h 03m

3 stops

3:25 pm - 12:40 am

PHL

OPO

28h 15m

3 stops

$979Multiple Airlines

Mon, Jun 15 - Sun, Jun 21

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

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

Air Canada

Aug 18

OPO12:15 pmPorto

31h 34m

1 stop

PHL2:49 pmPhiladelphia

Aug 27

PHL3:25 pmPhiladelphia

19h 20m

2 stops

OPO3:45 pmPorto

$1,110

United Airlines flights from Porto to Philadelphia

Our best United Airlines deals on Porto to Philadelphia flight tickets

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

Jun 15

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

Jun 21

PHL3:25 pmPhiladelphia

10h 25m

1 stop

OPO6:50 amPorto

$894

United Airlines

Aug 12

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

Aug 25

PHL10:05 amPhiladelphia

15h 55m

1 stop

OPO7:00 amPorto

$1,078

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 6/18

11:50 am-2:49 pm

1 stop31h 59m

Philadelphia

Wed 6/24

10:05 am-7:00 am

1 stop15h 55m

$891

Quickest round-trip

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 6/18

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Wed 6/24

6:10 am-7:00 am

2 stops19h 50m

$893

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mon 6/15

6:00 am-4:05 pm

1 stop15h 05m

Philadelphia

Sun 6/21

6:00 am-6:50 am

2 stops19h 50m

$894

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 6/18

11:50 am-10:09 am

2 stops27h 19m

Philadelphia

Wed 6/24

6:00 am-7:00 am

2 stops20h 00m

$905

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Wed 7/22

6:00 pm-8:30 am

1 stop19h 30m

Philadelphia

Wed 8/19

8:28 am-3:00 pm

2 stops25h 32m

$915

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mon 6/15

7:20 pm-9:19 pm

2 stops30h 59m

Philadelphia

Sun 6/21

10:50 am-6:50 am

2 stops15h 00m

$918

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mon 7/13

5:50 pm-8:30 am

1 stop19h 40m

Philadelphia

Tue 8/4

9:21 am-5:00 pm

2 stops26h 39m

$961

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Wed 7/22

6:00 pm-8:30 am

1 stop19h 30m

Philadelphia

Wed 8/19

8:28 am-10:45 am

1 stop21h 17m

$970

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Tue 7/14

10:30 pm-8:15 pm

2 stops26h 45m

Philadelphia

Tue 8/4

9:21 am-5:00 pm

2 stops26h 39m

$978

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Mon 6/15

10:30 pm-9:33 pm

3 stops28h 03m

Philadelphia

Sun 6/21

3:25 pm-12:40 am

3 stops28h 15m

$979

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

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	20h 27m
Direct flights	None

The fastest flight from Porto to Philadelphia takes 20h 27m

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 20h 27m 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.