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

United Airlines is the most popular carrier operating from Philadelphia to Porto

What airlines fly to Porto?

TAP AIR PORTUGAL, United Airlines and Air Europa are the top three most popular airlines that fly to Porto from Philadelphia according to our data. TAP AIR PORTUGAL is the first choice among our users, with 65% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 13 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Philadelphia Airport to Porto Airport?

Prices for flights from Philadelphia Airport to Porto Airport refresh daily.

How many operators does momondo search for flights from Philadelphia Airport to Porto Airport?

As of May 2026, there are 4 operators available to choose from for flights from Philadelphia Airport to Porto Airport.

How old do you have to be to fly from Philadelphia Airport to Porto 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 Philadelphia Airport to Porto Airport.

What documentation or ID do you need to fly to Porto Airport?

The required travel and health documents for your Porto Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Porto Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$395 Cheap Flights from Philadelphia to Porto in 2026

Q: What is the typical price of a round-trip flight between Philadelphia and Porto?

Prices are currently low for flights on this route. Typical prices usually range from $972 to $682. The lowest price recently found on this route was $716.

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Find the cheapest flights from Philadelphia to Porto

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:50 pm - 8:00 pm

PHL

OPO

19h 10m

1 stop

8:40 pm - 3:50 pm

OPO

PHL

24h 10m

1 stop

$716Iberia

Mon, Nov 2 - Mon, Nov 9

11:00 am - 7:40 am

PHL

OPO

15h 40m

2 stops

8:40 pm - 3:50 pm

OPO

PHL

24h 10m

1 stop

$721Iberia

Mon, Nov 2 - Mon, Nov 9

11:00 am - 11:45 am

PHL

OPO

19h 45m

2 stops

9:55 pm - 4:15 pm

OPO

PHL

23h 20m

2 stops

$731Iberia

Mon, Nov 2 - Mon, Nov 9

7:40 pm - 9:45 am

PHL

OPO

33h 05m

2 stops

6:00 am - 9:24 am

OPO

PHL

31h 24m

2 stops

$743United Airlines

Sat, Oct 17 - Tue, Oct 27

3:25 pm - 7:00 am

PHL

OPO

10h 35m

1 stop

8:40 am - 5:22 pm

OPO

PHL

37h 42m

2 stops

$744Multiple Airlines

Tue, Oct 13 - Fri, Oct 23

10:30 am - 7:00 am

PHL

OPO

15h 30m

2 stops

8:40 am - 5:22 pm

OPO

PHL

37h 42m

2 stops

$748Multiple Airlines

Tue, Oct 13 - Fri, Oct 23

10:10 am - 9:30 am

PHL

OPO

19h 20m

2 stops

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

$751United Airlines

Thu, Oct 29 - Thu, Nov 12

3:25 pm - 7:00 am

PHL

OPO

10h 35m

1 stop

12:45 pm - 12:25 pm

OPO

PHL

28h 40m

2 stops

$755United Airlines

Tue, Sep 22 - Wed, Oct 14

7:40 pm - 9:45 am

PHL

OPO

33h 05m

2 stops

12:45 pm - 2:47 pm

OPO

PHL

31h 02m

1 stop

$756United Airlines

Sat, Sep 26 - Wed, Oct 14

10:05 am - 7:00 am

PHL

OPO

15h 55m

1 stop

6:00 am - 4:05 pm

OPO

PHL

15h 05m

1 stop

$757Multiple Airlines

Tue, Sep 22 - Tue, Oct 13

Air Canada flights from Philadelphia to Porto

Our best Air Canada deals on Philadelphia to Porto flight tickets

Air Canada

Sep 22

PHL10:28 amPhiladelphia

15h 32m

2 stops

OPO7:00 amPorto

Oct 15

OPO6:00 amPorto

20h 32m

2 stops

PHL9:32 pmPhiladelphia

$765

Air Canada

Sep 20

PHL10:05 amPhiladelphia

27h 10m

2 stops

OPO6:15 pmPorto

Oct 15

OPO6:00 amPorto

20h 32m

2 stops

PHL9:32 pmPhiladelphia

$770

Air Canada

Sep 22

PHL10:28 amPhiladelphia

15h 32m

2 stops

OPO7:00 amPorto

Oct 16

OPO8:40 amPorto

36h 01m

2 stops

PHL3:41 pmPhiladelphia

$771

SWISS flights from Philadelphia to Porto

Our best SWISS deals on Philadelphia to Porto flight tickets

SWISS

Sep 22

PHL11:30 amPhiladelphia

18h 55m

2 stops

OPO11:25 amPorto

Oct 12

OPO7:20 pmPorto

27h 02m

2 stops

PHL5:22 pmPhiladelphia

$779

SWISS

Sep 25

PHL11:39 amPhiladelphia

25h 51m

2 stops

OPO6:30 pmPorto

Oct 15

OPO8:40 amPorto

37h 42m

2 stops

PHL5:22 pmPhiladelphia

$839

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Mon 11/2

7:50 pm-8:00 pm

1 stop19h 10m

Porto

Mon 11/9

8:40 pm-3:50 pm

1 stop24h 10m

$716

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Mon 11/2

11:00 am-7:40 am

2 stops15h 40m

Porto

Mon 11/9

8:40 pm-3:50 pm

1 stop24h 10m

$721

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Mon 11/2

11:00 am-11:45 am

2 stops19h 45m

Porto

Mon 11/9

9:55 pm-4:15 pm

2 stops23h 20m

$731

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Sat 10/17

7:40 pm-9:45 am

2 stops33h 05m

Porto

Tue 10/27

6:00 am-9:24 am

2 stops31h 24m

$743

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Tue 10/13

3:25 pm-7:00 am

1 stop10h 35m

Porto

Fri 10/23

8:40 am-5:22 pm

2 stops37h 42m

$744

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Tue 10/13

10:30 am-7:00 am

2 stops15h 30m

Porto

Fri 10/23

8:40 am-5:22 pm

2 stops37h 42m

$748

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Thu 10/29

10:10 am-9:30 am

2 stops19h 20m

Porto

Thu 11/12

6:00 am-4:05 pm

1 stop15h 05m

$751

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Tue 9/22

3:25 pm-7:00 am

1 stop10h 35m

Porto

Wed 10/14

12:45 pm-12:25 pm

2 stops28h 40m

$755

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Sat 9/26

7:40 pm-9:45 am

2 stops33h 05m

Porto

Wed 10/14

12:45 pm-2:47 pm

1 stop31h 02m

$756

Quickest round-trip

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Tue 9/22

10:05 am-7:00 am

1 stop15h 55m

Porto

Tue 10/13

6:00 am-4:05 pm

1 stop15h 05m

$757

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 Philadelphia to Porto

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 typical price of a round-trip flight between Philadelphia and Porto?

What is the cheapest month to fly to Porto?

The month of January is, on average, the cheapest month to fly to Porto from Philadelphia, with most prices found around $496. If you aren’t able to travel during the month of January, then book flights to Porto from Philadelphia during November instead. Flights to Porto in November, while not as cheap as those in January, still average around $612.

Can stopping save me money on Philadelphia to Porto flights?

You could potentially save up to 31% on your flight if you consider stops on a Philadelphia to Porto flight.

When to book flights from Philadelphia to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Porto according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Philadelphia to Porto (PHL to OPO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Porto

Fastest flight time	15h 27m
Direct flights	None

The fastest flight from Philadelphia to Porto takes 15h 27m

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

Search flight deals

Frequently asked questions about flying from Philadelphia to Porto

How far is Philadelphia to Porto by plane?
A flight from Philadelphia to Porto will travel around 3401.6 mi. 15h 27m is a normal flight duration for this route.
When did momondo last update prices for flights from Philadelphia Airport to Porto Airport?
Prices for flights from Philadelphia Airport to Porto Airport refresh daily.
How many operators does momondo search for flights from Philadelphia Airport to Porto Airport?
As of May 2026, there are 4 operators available to choose from for flights from Philadelphia Airport to Porto Airport.
How old do you have to be to fly from Philadelphia Airport to Porto 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 Philadelphia Airport to Porto Airport.
What documentation or ID do you need to fly to Porto Airport?
The required travel and health documents for your Porto Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Porto Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Philadelphia to Porto?
Based on momondo bookings for flights between Philadelphia and Porto, the leading airline is American Airlines, making up 30% of the total bookings. Other popular airlines include Iberia with 29%, Lufthansa with 23%, and United Airlines with 18%.

Best airlines flying from Philadelphia to Porto

Compare and see reviews for airlines that fly from Philadelphia to Porto with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $489	Free Cancellation	Rating 7.4 9,694 reviews	Search United Airlines flights
Iberia	PriceFrom $546	Free Cancellation	Rating 7.0 3,212 reviews	Search Iberia flights
American Airlines	PriceFrom $567	Free Cancellation	Rating 7.1 11,668 reviews	Search American Airlines flights
Lufthansa	PriceFrom $568	Free Cancellation	Rating 6.8 7,978 reviews	Search Lufthansa flights

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Coimbra

Braga

Aveiro

Matosinhos

Lamego

Esposende

Chaves

Pinhao

Guimarães

Espinho

Arcos de Valdevez

Ponte de Lima

Viseu

Curia

Penafiel

Mesao Frio

Mira

Baiao

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Porto?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Philadelphia to Porto. momondo saves you time and could save you money on your trip.

Can I find flights from Philadelphia to Porto with flexible booking policies on momondo?

All flight searches from Philadelphia to Porto on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Philadelphia to Porto?

Once you have performed a search for Philadelphia to Porto flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Philadelphia to Porto right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Philadelphia to Porto flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Porto trip

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Cheap flights from Philadelphia to Porto from $395

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Porto departing on 8/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Air Canada flights from Philadelphia to Porto

Our best Air Canada deals on Philadelphia to Porto flight tickets

SWISS flights from Philadelphia to Porto

Our best SWISS deals on Philadelphia to Porto flight tickets

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How to get the cheapest flight ticket from Philadelphia to Porto

What is the typical price of a round-trip flight between Philadelphia and Porto?

What is the cheapest month to fly to Porto?

Can stopping save me money on Philadelphia to Porto flights?

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

What airlines fly to Porto?

When to book flights from Philadelphia to Porto

Cheap Philadelphia to Porto (PHL to OPO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Porto

Fastest flight time

Direct flights

Frequently asked questions about flying from Philadelphia to Porto

Best airlines flying from Philadelphia to Porto

Compare and see reviews for airlines that fly from Philadelphia to Porto with momondo

Traveling to a place near Porto?

Why use momondo?

An easier way to manage your Porto trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Airports servicing Portugal

Fly your favorite airline to Porto

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Porto

List of cabin classes available on flights landing in Porto. Availability may vary depending on flight origin and airline.

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