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

British Airways is the most popular carrier operating from Porto to Philadelphia

What airlines fly to Philadelphia?

TAP AIR PORTUGAL, United Airlines and Delta are the top three most popular airlines that fly to Philadelphia from Porto according to our data. TAP AIR PORTUGAL is the first choice among our users, with 61% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 3 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.

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.

$428 Cheap Flights from Porto to Philadelphia in 2026/27

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.

7:50 am - 4:10 pmOPO Porto-PHL Philadelphia

13h 20m1 stop Dublin

5:40 pm - 8:55 amPHL Philadelphia-OPO Porto

10h 15m1 stop Dublin

$776Multiple Airlines

Sat, Nov 21 - Sat, Nov 28

5:45 pm - 8:39 amOPO Porto-PHL Philadelphia

19h 54m1 stop Boston Logan Intl

9:30 am - 10:35 amPHL Philadelphia-OPO Porto

20h 05m1 stop Boston Logan Intl

$805TAP AIR PORTUGAL

Sun, Dec 6 - Sun, Dec 13

5:45 pm - 8:39 amOPO Porto-PHL Philadelphia

19h 54m1 stop Boston Logan Intl

9:30 am - 10:35 amPHL Philadelphia-OPO Porto

20h 05m1 stop Boston Logan Intl

$806TAP AIR PORTUGAL

Sun, Dec 6 - Sun, Dec 13

5:45 pm - 8:39 amOPO Porto-PHL Philadelphia

19h 54m1 stop Boston Logan Intl

9:30 am - 10:35 amPHL Philadelphia-OPO Porto

20h 05m1 stop Boston Logan Intl

$812TAP AIR PORTUGAL

Sun, Dec 6 - Sun, Dec 13

5:00 am - 4:10 pmOPO Porto-PHL Philadelphia

16h 10m2 stops Lisbon Humberto Delgado Dublin

5:40 pm - 8:55 amPHL Philadelphia-OPO Porto

10h 15m1 stop Dublin

$817Multiple Airlines

Sat, Nov 21 - Sat, Nov 28

2:30 pm - 8:39 amOPO Porto-PHL Philadelphia

23h 09m2 stops Lisbon Humberto Delgado Boston Logan Intl

9:30 am - 10:35 amPHL Philadelphia-OPO Porto

20h 05m1 stop Boston Logan Intl

$820TAP AIR PORTUGAL

Sun, Dec 6 - Sun, Dec 13

2:30 pm - 8:39 amOPO Porto-PHL Philadelphia

23h 09m2 stops Lisbon Humberto Delgado Boston Logan Intl

9:30 am - 10:35 amPHL Philadelphia-OPO Porto

20h 05m1 stop Boston Logan Intl

$821TAP AIR PORTUGAL

Sun, Dec 6 - Sun, Dec 13

2:30 pm - 8:39 amOPO Porto-PHL Philadelphia

23h 09m2 stops Lisbon Humberto Delgado Boston Logan Intl

9:30 am - 10:35 amPHL Philadelphia-OPO Porto

20h 05m1 stop Boston Logan Intl

$833TAP AIR PORTUGAL

Sun, Dec 6 - Sun, Dec 13

7:50 am - 4:10 pmOPO Porto-PHL Philadelphia

13h 20m1 stop Dublin

5:40 pm - 5:25 pmPHL Philadelphia-OPO Porto

18h 45m1 stop Dublin

$835Multiple Airlines

Sat, Nov 7 - Wed, Nov 11

11:00 am - 8:39 amOPO Porto-PHL Philadelphia

26h 39m2 stops Lisbon Humberto Delgado Boston Logan Intl

9:30 am - 1:30 pmPHL Philadelphia-OPO Porto

23h 00m2 stops Boston Logan Intl Lisbon Humberto Delgado

$846TAP AIR PORTUGAL

Thu, Dec 3 - Sun, Dec 13

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United Airlines flights from Porto to Philadelphia

Our best United Airlines deals on Porto to Philadelphia flight tickets

United Airlines

Dec 6

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

Dec 13

PHL10:53 amPhiladelphia

17h 37m

2 stops

OPO9:30 amPorto

$912

United Airlines

Nov 21

OPO6:00 amPorto

21h 57m

2 stops

PHL10:57 pmPhiladelphia

Nov 28

PHL6:15 amPhiladelphia

22h 15m

2 stops

OPO9:30 amPorto

$915

United Airlines

Dec 6

OPO6:00 amPorto

15h 05m

1 stop

PHL4:05 pmPhiladelphia

Dec 13

PHL5:40 pmPhiladelphia

16h 40m

1 stop

OPO3:20 pmPorto

$916

TAP AIR PORTUGAL flights from Porto to Philadelphia

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

TAP AIR PORTUGAL

Dec 6

OPO5:45 pmPorto

19h 54m

1 stop

PHL8:39 amPhiladelphia

Dec 13

PHL9:30 amPhiladelphia

20h 05m

1 stop

OPO10:35 amPorto

$805

TAP AIR PORTUGAL

Dec 6

OPO5:45 pmPorto

19h 54m

1 stop

PHL8:39 amPhiladelphia

Dec 13

PHL9:30 amPhiladelphia

20h 05m

1 stop

OPO10:35 amPorto

$806

TAP AIR PORTUGAL

Dec 6

OPO5:45 pmPorto

19h 54m

1 stop

PHL8:39 amPhiladelphia

Dec 13

PHL9:30 amPhiladelphia

20h 05m

1 stop

OPO10:35 amPorto

$812

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PortoPhiladelphia

OPO Porto - PHL Philadelphia

OPOPHL

Porto

Sat 11/21

7:50 am-4:10 pm

1 stop13h 20m

Philadelphia

Sat 11/28

5:40 pm-8:55 am

1 stop10h 15m

$776

PortoPhiladelphia

OPO Porto - PHL Philadelphia

OPOPHL

Porto

Sun 12/6

5:45 pm-8:39 am

1 stop19h 54m

Philadelphia

Sun 12/13

9:30 am-10:35 am

1 stop20h 05m

$805

PortoPhiladelphia

OPO Porto - PHL Philadelphia

OPOPHL

Porto

Sun 12/6

5:45 pm-8:39 am

1 stop19h 54m

Philadelphia

Sun 12/13

9:30 am-10:35 am

1 stop20h 05m

$806

PortoPhiladelphia

OPO Porto - PHL Philadelphia

OPOPHL

Porto

Sun 12/6

5:45 pm-8:39 am

1 stop19h 54m

Philadelphia

Sun 12/13

9:30 am-10:35 am

1 stop20h 05m

$812

PortoPhiladelphia

OPO Porto - PHL Philadelphia

OPOPHL

Porto

Sat 11/21

5:00 am-4:10 pm

2 stops16h 10m

Philadelphia

Sat 11/28

5:40 pm-8:55 am

1 stop10h 15m

$817

PortoPhiladelphia

OPO Porto - PHL Philadelphia

OPOPHL

Porto

Sun 12/6

2:30 pm-8:39 am

2 stops23h 09m

Philadelphia

Sun 12/13

9:30 am-10:35 am

1 stop20h 05m

$820

PortoPhiladelphia

OPO Porto - PHL Philadelphia

OPOPHL

Porto

Sun 12/6

2:30 pm-8:39 am

2 stops23h 09m

Philadelphia

Sun 12/13

9:30 am-10:35 am

1 stop20h 05m

$821

PortoPhiladelphia

OPO Porto - PHL Philadelphia

OPOPHL

Porto

Sun 12/6

2:30 pm-8:39 am

2 stops23h 09m

Philadelphia

Sun 12/13

9:30 am-10:35 am

1 stop20h 05m

$833

PortoPhiladelphia

OPO Porto - PHL Philadelphia

OPOPHL

Porto

Sat 11/7

7:50 am-4:10 pm

1 stop13h 20m

Philadelphia

Wed 11/11

5:40 pm-5:25 pm

1 stop18h 45m

$835

PortoPhiladelphia

OPO Porto - PHL Philadelphia

OPOPHL

Porto

Thu 12/3

11:00 am-8:39 am

2 stops26h 39m

Philadelphia

Sun 12/13

9:30 am-1:30 pm

2 stops23h 00m

$846

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?

No. A direct flight is the cheapest option for a flight between Porto to Philadelphia.

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

Best Price Found	$428
Fastest flight time	19h 54m
Direct flights	Mon and Tue
Airports in Philadelphia	1 airport

The best one-way flight to Philadelphia from Porto in the past 72 hours is $428. The best round-trip flight deal from Porto to Philadelphia found on momondo in the last 72 hours is $776.

The fastest flight from Porto to Philadelphia takes 19h 54m

Direct flights go from Porto to Philadelphia on Monday and Tuesday. The only airline offering direct flights is American Airlines.

There is 1 airport in Philadelphia. From Porto there are direct flights to Philadelphia (PHL).

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 54m 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

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Rehoboth Beach

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Reading

Essington

Dover

Dewey Beach

New Castle

North Wildwood

Vineland

Chester

Lewes

Pottstown

Avalon

Elkton

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.