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

Iberia is the most popular carrier operating from Philadelphia to Porto

What airlines fly to Porto?

TAP AIR PORTUGAL, United Airlines and Delta 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 62% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 12 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 October 2026, there are 3 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.

$350 Cheap Flights from Philadelphia to Porto in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Porto

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:20 pm - 11:15 amPHL Philadelphia-OPO Porto

38h 55m2 stops Montreal Pierre Elliott Trudeau Intl Zurich

7:20 pm - 2:42 pmOPO Porto-PHL Philadelphia

48h 22m2 stops Zurich Montreal Pierre Elliott Trudeau Intl

$758Multiple Airlines

Tue, Mar 2 - Tue, Mar 9

3:20 pm - 11:15 amPHL Philadelphia-OPO Porto

38h 55m2 stops Montreal Pierre Elliott Trudeau Intl Zurich

12:05 pm - 10:46 pmOPO Porto-PHL Philadelphia

39h 41m2 stops Zurich Toronto Pearson Intl

$763Multiple Airlines

Sat, Jan 30 - Tue, Feb 2

7:45 pm - 11:45 amPHL Philadelphia-OPO Porto

11h 00m1 stop Madrid Barajas

8:40 pm - 3:30 pmOPO Porto-PHL Philadelphia

23h 50m1 stop Madrid Barajas

$770Iberia

Wed, Jan 27 - Mon, Feb 1

3:20 pm - 3:20 pmPHL Philadelphia-OPO Porto

19h 00m2 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main

12:05 pm - 2:44 pmOPO Porto-PHL Philadelphia

55h 39m2 stops Zurich Montreal Pierre Elliott Trudeau Intl

$770Multiple Airlines

Wed, Jan 27 - Mon, Feb 1

2:37 pm - 9:30 amPHL Philadelphia-OPO Porto

14h 53m2 stops Washington, D.C. Dulles Intl Newark

6:00 am - 4:00 pmOPO Porto-PHL Philadelphia

15h 00m1 stop Frankfurt am Main

$774United Airlines

Tue, Mar 23 - Tue, Mar 30

4:08 pm - 11:45 amPHL Philadelphia-OPO Porto

14h 37m2 stops Boston Logan Intl Madrid Barajas

12:25 pm - 3:50 pmOPO Porto-PHL Philadelphia

32h 25m1 stop Madrid Barajas

$774Iberia

Tue, Mar 2 - Tue, Mar 9

4:40 pm - 11:45 amPHL Philadelphia-OPO Porto

14h 05m2 stops Boston Logan Intl Madrid Barajas

8:40 pm - 3:30 pmOPO Porto-PHL Philadelphia

23h 50m1 stop Madrid Barajas

$775Iberia

Wed, Jan 27 - Mon, Feb 1

1:14 pm - 9:30 amPHL Philadelphia-OPO Porto

15h 16m2 stops Chicago O'Hare Intl Newark

6:00 am - 5:39 pmOPO Porto-PHL Philadelphia

16h 39m2 stops Frankfurt am Main Chicago O'Hare Intl

$783United Airlines

Mon, Mar 1 - Wed, Mar 10

4:40 pm - 4:00 pmPHL Philadelphia-OPO Porto

18h 20m2 stops Boston Logan Intl Madrid Barajas

8:20 am - 3:30 pmOPO Porto-PHL Philadelphia

12h 10m1 stop Madrid Barajas

$838American Airlines

Sun, Jan 24 - Sat, Jan 30

7:50 pm - 11:45 amPHL Philadelphia-OPO Porto

10h 55m1 stop Madrid Barajas

8:20 am - 11:56 pmOPO Porto-PHL Philadelphia

20h 36m2 stops Madrid Barajas Chicago O'Hare Intl

$851American Airlines

Sun, Feb 21 - Sun, Feb 28

Cheap last minute flights

Enter your travel dates to find the best prices.

10:27 am - 10:35 amPHL Philadelphia-OPO Porto

19h 08m1 stop Boston Logan Intl

5:45 pm - 8:37 pmOPO Porto-PHL Philadelphia

31h 52m1 stop Boston Logan Intl

$872TAP AIR PORTUGAL

Sun, Nov 1 - Tue, Nov 10

10:27 am - 3:00 pmPHL Philadelphia-OPO Porto

23h 33m2 stops Boston Logan Intl Lisbon Humberto Delgado

5:45 pm - 8:37 pmOPO Porto-PHL Philadelphia

31h 52m1 stop Boston Logan Intl

$894TAP AIR PORTUGAL

Sun, Nov 1 - Tue, Nov 10

10:27 am - 1:30 pmPHL Philadelphia-OPO Porto

22h 03m2 stops Boston Logan Intl Lisbon Humberto Delgado

8:00 pm - 8:37 pmOPO Porto-PHL Philadelphia

29h 37m2 stops Lisbon Humberto Delgado Boston Logan Intl

$939TAP AIR PORTUGAL

Sun, Nov 1 - Tue, Nov 10

7:42 am - 3:00 pmPHL Philadelphia-OPO Porto

27h 18m3 stops Raleigh-Durham Orlando Lisbon Humberto Delgado

7:00 am - 10:22 amOPO Porto-PHL Philadelphia

32h 22m3 stops Lisbon Humberto Delgado Orlando San Juan Luis Munoz Marin Intl

$1,020Multiple Airlines

Sat, Oct 31 - Mon, Nov 9

6:15 am - 9:30 amPHL Philadelphia-OPO Porto

22h 15m2 stops Chicago O'Hare Intl Newark

12:30 pm - 4:05 pmOPO Porto-PHL Philadelphia

32h 35m1 stop Frankfurt am Main

$1,052United Airlines

Mon, Nov 2 - Mon, Nov 9

5:45 pm - 4:35 pmPHL Philadelphia-OPO Porto

18h 50m2 stops Orlando Lisbon Humberto Delgado

7:00 am - 10:22 amOPO Porto-PHL Philadelphia

32h 22m3 stops Lisbon Humberto Delgado Orlando San Juan Luis Munoz Marin Intl

$1,057Multiple Airlines

Sat, Oct 31 - Mon, Nov 9

7:40 pm - 9:30 amPHL Philadelphia-OPO Porto

33h 50m2 stops Washington, D.C. Dulles Intl Newark

12:30 pm - 4:05 pmOPO Porto-PHL Philadelphia

32h 35m1 stop Frankfurt am Main

$1,058Multiple Airlines

Sat, Oct 31 - Mon, Nov 9

7:40 pm - 9:30 amPHL Philadelphia-OPO Porto

33h 50m2 stops Washington, D.C. Dulles Intl Newark

12:30 pm - 5:47 pmOPO Porto-PHL Philadelphia

34h 17m2 stops Frankfurt am Main Chicago O'Hare Intl

$1,062United Airlines

Sat, Oct 31 - Mon, Nov 9

7:37 pm - 11:45 amPHL Philadelphia-OPO Porto

35h 08m2 stops Miami Madrid Barajas

9:55 pm - 4:15 pmOPO Porto-PHL Philadelphia

23h 20m2 stops Barcelona-El Prat London Heathrow

$1,064Iberia

Mon, Nov 2 - Mon, Nov 9

8:40 pm - 8:00 pmPHL Philadelphia-OPO Porto

19h 20m1 stop Madrid Barajas

8:20 am - 3:35 pmOPO Porto-PHL Philadelphia

12h 15m1 stop Madrid Barajas

$1,198Iberia

Sat, Oct 31 - Sun, Nov 8

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Iberia flights from Philadelphia to Porto

Our best Iberia deals on Philadelphia to Porto flight tickets

Iberia

Apr 20

PHL8:00 pmPhiladelphia

7h 15m

OPO8:15 amPorto

Apr 27

OPO8:40 pmPorto

25h 55m

1 stop

PHL5:35 pmPhiladelphia

$762

Iberia

Jan 27

PHL7:45 pmPhiladelphia

11h 00m

1 stop

OPO11:45 amPorto

Feb 1

OPO8:40 pmPorto

23h 50m

1 stop

PHL3:30 pmPhiladelphia

$770

Iberia

Mar 2

PHL4:08 pmPhiladelphia

14h 37m

2 stops

OPO11:45 amPorto

Mar 9

OPO12:25 pmPorto

32h 25m

1 stop

PHL3:50 pmPhiladelphia

$774

Air Canada flights from Philadelphia to Porto

Our best Air Canada deals on Philadelphia to Porto flight tickets

Air Canada

Mar 22

PHL3:20 pmPhiladelphia

17h 30m

2 stops

OPO12:50 pmPorto

Mar 30

OPO6:00 amPorto

37h 41m

2 stops

PHL2:41 pmPhiladelphia

$772

Air Canada

Apr 10

PHL3:20 pmPhiladelphia

45h 55m

2 stops

OPO6:15 pmPorto

Apr 17

OPO6:00 amPorto

21h 53m

2 stops

PHL10:53 pmPhiladelphia

$836

Air Canada

Nov 1

PHL9:15 amPhiladelphia

25h 05m

2 stops

OPO3:20 pmPorto

Nov 10

OPO10:30 amPorto

17h 16m

3 stops

PHL10:46 pmPhiladelphia

$2,017

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaPorto

PHL Philadelphia - OPO Porto

PHLOPO

Philadelphia

Tue 3/2

3:20 pm-11:15 am

2 stops38h 55m

Porto

Tue 3/9

7:20 pm-2:42 pm

2 stops48h 22m

$758

PhiladelphiaPorto

PHL Philadelphia - OPO Porto

PHLOPO

Philadelphia

Sat 1/30

3:20 pm-11:15 am

2 stops38h 55m

Porto

Tue 2/2

12:05 pm-10:46 pm

2 stops39h 41m

$763

PhiladelphiaPorto

PHL Philadelphia - OPO Porto

PHLOPO

Philadelphia

Wed 1/27

7:45 pm-11:45 am

1 stop11h 00m

Porto

Mon 2/1

8:40 pm-3:30 pm

1 stop23h 50m

$770

PhiladelphiaPorto

PHL Philadelphia - OPO Porto

PHLOPO

Philadelphia

Wed 1/27

3:20 pm-3:20 pm

2 stops19h 00m

Porto

Mon 2/1

12:05 pm-2:44 pm

2 stops55h 39m

$770

Quickest round-trip

PhiladelphiaPorto

PHL Philadelphia - OPO Porto

PHLOPO

Philadelphia

Tue 3/23

2:37 pm-9:30 am

2 stops14h 53m

Porto

Tue 3/30

6:00 am-4:00 pm

1 stop15h 00m

$774

PhiladelphiaPorto

PHL Philadelphia - OPO Porto

PHLOPO

Philadelphia

Tue 3/2

4:08 pm-11:45 am

2 stops14h 37m

Porto

Tue 3/9

12:25 pm-3:50 pm

1 stop32h 25m

$774

PhiladelphiaPorto

PHL Philadelphia - OPO Porto

PHLOPO

Philadelphia

Wed 1/27

4:40 pm-11:45 am

2 stops14h 05m

Porto

Mon 2/1

8:40 pm-3:30 pm

1 stop23h 50m

$775

PhiladelphiaPorto

PHL Philadelphia - OPO Porto

PHLOPO

Philadelphia

Mon 3/1

1:14 pm-9:30 am

2 stops15h 16m

Porto

Wed 3/10

6:00 am-5:39 pm

2 stops16h 39m

$783

PhiladelphiaPorto

PHL Philadelphia - OPO Porto

PHLOPO

Philadelphia

Sun 1/24

4:40 pm-4:00 pm

2 stops18h 20m

Porto

Sat 1/30

8:20 am-3:30 pm

1 stop12h 10m

$838

PhiladelphiaPorto

PHL Philadelphia - OPO Porto

PHLOPO

Philadelphia

Sun 2/21

7:50 pm-11:45 am

1 stop10h 55m

Porto

Sun 2/28

8:20 am-11:56 pm

2 stops20h 36m

$851

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 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 $563.

What is the cheapest Philadelphia to Porto flight route?

Fly from Philadelphia to Porto for the best Philadelphia - Porto flight prices

What cabin class options are available on Philadelphia to Porto flights?

There is only 1 cabin class available to choose from on Philadelphia to Porto flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Philadelphia to Porto flights?

You could potentially save up to 30% 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

Best Price Found	$350
Fastest flight time	7h 15m
Direct flights	Mon, Tue, Wed, Thu, Sat and Sun
Airports in Porto	1 airport

The best one-way flight to Porto from Philadelphia in the past 72 hours is $350. The best round-trip flight deal from Philadelphia to Porto found on momondo in the last 72 hours is $758.

The fastest flight from Philadelphia to Porto takes 7h 15m

Direct flights go from Philadelphia to Porto on Monday, Tuesday, Wednesday, Thursday, Saturday and Sunday. There are no airlines offering direct flights.

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

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. 7h 15m 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 October 2026, there are 3 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 plane model from Philadelphia to Porto?
momondo data reveals that the most frequently booked plane model on the route from Philadelphia to Porto is Airbus A321neo, representing 100.00% of all bookings.
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 46% of the total bookings. Other popular airlines include United Airlines with 29% and Iberia with 25%.

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 7.3 10,451 reviews	Search United Airlines flights
Iberia	PriceFrom $496	Free Cancellation	Rating 7.0 3,242 reviews	Search Iberia flights
American Airlines	PriceFrom $758	Free Cancellation	Rating 7.0 12,210 reviews	Search American Airlines flights

Braga

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Aveiro

Pinhao

Matosinhos

Esposende

Chaves

Viseu

Espinho

Arcos de Valdevez

Guimarães

Lamego

Caminha

Penafiel

Ponte de Lima

Mira

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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.

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Cheap flights from Philadelphia to Porto from $350

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 4/19. 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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Iberia flights from Philadelphia to Porto

Our best Iberia deals on Philadelphia to Porto flight tickets

Air Canada flights from Philadelphia to Porto

Our best Air Canada deals on Philadelphia to Porto flight tickets

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See travel insights to Porto from

How to get the cheapest flight ticket from Philadelphia to Porto

What is the cheapest month to fly to Porto?

What is the cheapest Philadelphia to Porto flight route?

What cabin class options are available on Philadelphia to Porto flights?

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

Best Price Found

Fastest flight time

Direct flights

Airports in Porto

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.

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo

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