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.

$427 Cheap Flights from Porto to Philadelphia in 2025/26

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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 - 11:34 am

OPO

PHL

28h 09m2 stops

6:35 pm - 7:40 am

PHL

OPO

32h 05m2 stops

$679American Airlines

Wed, Feb 18 - Sun, Feb 22

12:25 pm - 3:59 pm

OPO

PHL

32h 34m2 stops

7:45 pm - 8:00 pm

PHL

OPO

19h 15m2 stops

$681American Airlines

Wed, Feb 18 - Sun, Feb 22

8:40 pm - 3:35 pm

OPO

PHL

23h 55m1 stop

6:35 pm - 8:00 pm

PHL

OPO

20h 25m2 stops

$684American Airlines

Wed, Feb 18 - Sun, Feb 22

8:40 pm - 3:35 pm

OPO

PHL

23h 55m1 stop

7:45 pm - 8:00 pm

PHL

OPO

19h 15m2 stops

$686American Airlines

Wed, Feb 18 - Sun, Feb 22

8:20 am - 3:35 pm

OPO

PHL

12h 15m1 stop

8:00 pm - 11:45 am

PHL

OPO

10h 45m1 stop

$704American Airlines

Wed, Feb 18 - Sun, Feb 22

8:20 am - 3:35 pm

OPO

PHL

12h 15m1 stop

8:00 pm - 11:45 am

PHL

OPO

10h 45m1 stop

$706American Airlines

Wed, Feb 18 - Sun, Feb 22

8:20 am - 7:27 pm

OPO

PHL

16h 07m2 stops

8:00 pm - 11:45 am

PHL

OPO

10h 45m1 stop

$732Iberia

Thu, Feb 5 - Thu, Feb 12

8:40 pm - 3:40 pm

OPO

PHL

24h 00m1 stop

8:00 pm - 11:45 am

PHL

OPO

10h 45m1 stop

$738Iberia

Thu, Feb 5 - Thu, Feb 12

8:20 am - 7:27 pm

OPO

PHL

16h 07m2 stops

9:30 pm - 4:00 pm

PHL

OPO

13h 30m2 stops

$783Iberia

Thu, Feb 5 - Thu, Feb 12

2:20 pm - 9:36 pm

OPO

PHL

36h 16m3 stops

12:55 pm - 5:30 pm

PHL

OPO

23h 35m2 stops

$979SWISS

Thu, Feb 5 - Thu, Feb 12

Iberia flights from Porto to Philadelphia

Our best Iberia deals on Porto to Philadelphia flight tickets

Iberia

Feb 5

OPO8:20 amPorto

16h 07m

2 stops

PHL7:27 pmPhiladelphia

Feb 12

PHL8:00 pmPhiladelphia

10h 45m

1 stop

OPO11:45 amPorto

$732

Find similar

Iberia

Feb 5

OPO8:40 pmPorto

24h 00m

1 stop

PHL3:40 pmPhiladelphia

Feb 12

PHL8:00 pmPhiladelphia

10h 45m

1 stop

OPO11:45 amPorto

$738

Find similar

Iberia

Feb 5

OPO8:20 amPorto

16h 07m

2 stops

PHL7:27 pmPhiladelphia

Feb 12

PHL9:30 pmPhiladelphia

13h 30m

2 stops

OPO4:00 pmPorto

$783

Find similar

American Airlines flights from Porto to Philadelphia

Our best American Airlines deals on Porto to Philadelphia flight tickets

American Airlines

Feb 18

OPO12:25 pmPorto

29h 30m

2 stops

PHL12:55 pmPhiladelphia

Feb 22

PHL6:35 pmPhiladelphia

20h 25m

2 stops

OPO8:00 pmPorto

$679

Find similar

American Airlines

Feb 18

OPO12:25 pmPorto

32h 34m

2 stops

PHL3:59 pmPhiladelphia

Feb 22

PHL7:45 pmPhiladelphia

19h 15m

2 stops

OPO8:00 pmPorto

$681

Find similar

American Airlines

Feb 18

OPO8:40 pmPorto

23h 55m

1 stop

PHL3:35 pmPhiladelphia

Feb 22

PHL6:35 pmPhiladelphia

20h 25m

2 stops

OPO8:00 pmPorto

$684

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Wed 2/18

12:25 pm-11:34 am

2 stops28h 09m

Philadelphia

Sun 2/22

6:35 pm-7:40 am

2 stops32h 05m

$679

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Wed 2/18

12:25 pm-3:59 pm

2 stops32h 34m

Philadelphia

Sun 2/22

7:45 pm-8:00 pm

2 stops19h 15m

$681

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Wed 2/18

8:40 pm-3:35 pm

1 stop23h 55m

Philadelphia

Sun 2/22

6:35 pm-8:00 pm

2 stops20h 25m

$684

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Wed 2/18

8:40 pm-3:35 pm

1 stop23h 55m

Philadelphia

Sun 2/22

7:45 pm-8:00 pm

2 stops19h 15m

$686

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Wed 2/18

8:20 am-3:35 pm

1 stop12h 15m

Philadelphia

Sun 2/22

8:00 pm-11:45 am

1 stop10h 45m

$704

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Wed 2/18

8:20 am-3:35 pm

1 stop12h 15m

Philadelphia

Sun 2/22

8:00 pm-11:45 am

1 stop10h 45m

$706

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 2/5

8:20 am-7:27 pm

2 stops16h 07m

Philadelphia

Thu 2/12

8:00 pm-11:45 am

1 stop10h 45m

$732

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 2/5

8:40 pm-3:40 pm

1 stop24h 00m

Philadelphia

Thu 2/12

8:00 pm-11:45 am

1 stop10h 45m

$738

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 2/5

8:20 am-7:27 pm

2 stops16h 07m

Philadelphia

Thu 2/12

9:30 pm-4:00 pm

2 stops13h 30m

$783

PortoPhiladelphia

OPO - PHL

OPOPHL

Porto

Thu 2/5

2:20 pm-9:36 pm

3 stops36h 16m

Philadelphia

Thu 2/12

12:55 pm-5:30 pm

2 stops23h 35m

$979

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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 36% 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	21h 11m
Direct flights	None

The fastest flight from Porto to Philadelphia takes 21h 11m

There are no direct flights from Porto to Philadelphia. There are no popular flight routes from Porto to Philadelphia.

Search flight deals

How far is Porto to Philadelphia by plane?
Porto and Philadelphia are 3401.6 mi apart from one another. Typically, this will take 21h 11m 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

King of Prussia

Cherry Hill

Newark

Dewey Beach

Reading

North Wildwood

Avalon

Dover

Lewes

Stone Harbor

Essington

Vineland

Pottstown

Elkton

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.