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.

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

SWISS, United Airlines, and Iberia are the most popular carriers operating from Philadelphia to Porto

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 August 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.

$348 Cheap Flights from Philadelphia to Porto in 2026

Discover deals from 900+ travel sites with momondo.

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.

12:20 pm - 10:35 amPHL Philadelphia-OPO Porto

17h 15m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

11:15 am - 12:55 amOPO Porto-PHL Philadelphia

18h 40m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$712Multiple Airlines

Tue, Dec 8 - Wed, Dec 16

7:50 pm - 8:00 pmPHL Philadelphia-OPO Porto

19h 10m1 stop Madrid Barajas

8:40 pm - 3:50 pmOPO Porto-PHL Philadelphia

24h 10m1 stop Madrid Barajas

$716Iberia

Tue, Dec 8 - Wed, Dec 16

12:34 pm - 11:45 amPHL Philadelphia-OPO Porto

18h 11m2 stops Dallas/Fort Worth Madrid Barajas

8:40 pm - 3:50 pmOPO Porto-PHL Philadelphia

24h 10m1 stop Madrid Barajas

$720Multiple Airlines

Tue, Dec 8 - Wed, Dec 16

10:05 am - 7:00 amPHL Philadelphia-OPO Porto

15h 55m1 stop Montreal Pierre Elliott Trudeau Intl

7:20 pm - 5:05 pmOPO Porto-PHL Philadelphia

25h 45m2 stops Zurich Frankfurt am Main

$724Multiple Airlines

Wed, Oct 14 - Mon, Oct 26

9:50 am - 9:30 amPHL Philadelphia-OPO Porto

18h 40m2 stops Chicago O'Hare Intl Newark

6:00 am - 4:21 pmOPO Porto-PHL Philadelphia

39h 21m2 stops Frankfurt am Main Toronto Pearson Intl

$740United Airlines

Tue, Dec 29 - Fri, Jan 8

7:30 pm - 9:45 amPHL Philadelphia-OPO Porto

33h 15m2 stops Washington, D.C. Dulles Intl Newark

6:00 am - 9:49 amOPO Porto-PHL Philadelphia

31h 49m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$742United Airlines

Sat, Oct 17 - Wed, Oct 28

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

19h 20m1 stop Madrid Barajas

8:40 pm - 4:20 pmOPO Porto-PHL Philadelphia

24h 40m1 stop Madrid Barajas

$743Iberia

Fri, Oct 30 - Thu, Nov 5

9:02 pm - 11:45 amPHL Philadelphia-OPO Porto

33h 43m2 stops Chicago O'Hare Intl Madrid Barajas

8:40 pm - 4:35 pmOPO Porto-PHL Philadelphia

23h 55m1 stop Madrid Barajas

$762Iberia

Sat, Oct 17 - Wed, Oct 28

5:17 pm - 11:45 amPHL Philadelphia-OPO Porto

13h 28m2 stops Boston Logan Intl Madrid Barajas

8:40 pm - 4:35 pmOPO Porto-PHL Philadelphia

23h 55m1 stop Madrid Barajas

$801American Airlines

Sat, Oct 17 - Wed, Oct 28

5:31 pm - 11:45 amPHL Philadelphia-OPO Porto

14h 14m2 stops Boston Logan Intl Madrid Barajas

8:40 pm - 4:20 pmOPO Porto-PHL Philadelphia

24h 40m1 stop Madrid Barajas

$820American Airlines

Thu, Oct 29 - Sat, Nov 7

Cheap last minute flights

Enter your travel dates to find the best prices.

10:34 am - 9:45 amPHL Philadelphia-OPO Porto

18h 11m2 stops Chicago O'Hare Intl Newark

6:00 am - 4:05 pmOPO Porto-PHL Philadelphia

15h 05m1 stop Frankfurt am Main

$897United Airlines

Thu, Aug 27 - Thu, Sep 3

10:34 am - 6:55 amPHL Philadelphia-OPO Porto

15h 21m2 stops Chicago O'Hare Intl Newark

6:00 am - 4:05 pmOPO Porto-PHL Philadelphia

15h 05m1 stop Frankfurt am Main

$897Multiple Airlines

Thu, Aug 27 - Thu, Sep 3

5:40 pm - 3:45 pmPHL Philadelphia-OPO Porto

17h 05m1 stop Frankfurt am Main

6:00 am - 4:05 pmOPO Porto-PHL Philadelphia

15h 05m1 stop Frankfurt am Main

$909Lufthansa

Thu, Aug 27 - Thu, Sep 3

10:34 am - 6:55 amPHL Philadelphia-OPO Porto

15h 21m2 stops Chicago O'Hare Intl Newark

12:35 pm - 12:59 amOPO Porto-PHL Philadelphia

17h 24m2 stops Newark Chicago O'Hare Intl

$915United Airlines

Thu, Aug 27 - Thu, Sep 3

5:40 pm - 11:15 amPHL Philadelphia-OPO Porto

12h 35m1 stop Frankfurt am Main

6:00 am - 4:05 pmOPO Porto-PHL Philadelphia

15h 05m1 stop Frankfurt am Main

$945Lufthansa

Thu, Aug 27 - Thu, Sep 3

7:00 am - 6:45 amPHL Philadelphia-OPO Porto

18h 45m3 stops Toronto Pearson Intl Ottawa Montreal Pierre Elliott Trudeau Intl

8:10 pm - 9:34 pmOPO Porto-PHL Philadelphia

30h 24m2 stops Madrid Barajas Montreal Pierre Elliott Trudeau Intl

$1,120Multiple Airlines

Thu, Aug 27 - Thu, Sep 3

6:56 pm - 7:00 amPHL Philadelphia-OPO Porto

31h 04m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

11:50 am - 2:21 pmOPO Porto-PHL Philadelphia

31h 31m2 stops Montreal Pierre Elliott Trudeau Intl Washington, D.C. Dulles Intl

$1,217United Airlines

Thu, Aug 27 - Thu, Sep 3

5:40 pm - 3:45 pmPHL Philadelphia-OPO Porto

17h 05m1 stop Frankfurt am Main

11:50 am - 2:21 pmOPO Porto-PHL Philadelphia

31h 31m2 stops Montreal Pierre Elliott Trudeau Intl Washington, D.C. Dulles Intl

$1,224Multiple Airlines

Thu, Aug 27 - Thu, Sep 3

5:40 pm - 3:45 pmPHL Philadelphia-OPO Porto

17h 05m1 stop Frankfurt am Main

6:00 am - 4:05 pmOPO Porto-PHL Philadelphia

15h 05m1 stop Frankfurt am Main

$1,232Lufthansa

Thu, Aug 27 - Thu, Sep 3

7:00 am - 6:45 amPHL Philadelphia-OPO Porto

18h 45m3 stops Toronto Pearson Intl Ottawa Montreal Pierre Elliott Trudeau Intl

5:05 am - 10:11 amOPO Porto-PHL Philadelphia

34h 06m3 stops Lisbon Humberto Delgado Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

$1,251Multiple Airlines

Thu, Aug 27 - Thu, Sep 3

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Air Canada flights from Philadelphia to Porto

Our best Air Canada deals on Philadelphia to Porto flight tickets

Air Canada

Oct 5

PHL3:25 pmPhiladelphia

10h 35m

1 stop

OPO7:00 amPorto

Oct 20

OPO6:20 amPorto

21h 26m

2 stops

PHL10:46 pmPhiladelphia

$725

Air Canada

Oct 5

PHL3:25 pmPhiladelphia

10h 35m

1 stop

OPO7:00 amPorto

Oct 20

OPO11:15 amPorto

15h 17m

1 stop

PHL9:32 pmPhiladelphia

$731

Air Canada

Oct 15

PHL4:20 pmPhiladelphia

33h 50m

2 stops

OPO7:10 amPorto

Oct 23

OPO6:00 amPorto

20h 32m

2 stops

PHL9:32 pmPhiladelphia

$787

United Airlines flights from Philadelphia to Porto

Our best United Airlines deals on Philadelphia to Porto flight tickets

United Airlines

Oct 17

PHL7:30 pmPhiladelphia

33h 15m

2 stops

OPO9:45 amPorto

Oct 28

OPO6:00 amPorto

31h 49m

2 stops

PHL9:49 amPhiladelphia

$742

United Airlines

Dec 27

PHL7:37 pmPhiladelphia

32h 53m

2 stops

OPO9:30 amPorto

Jan 6

OPO6:00 amPorto

36h 51m

2 stops

PHL1:51 pmPhiladelphia

$743

United Airlines

Dec 8

PHL9:45 amPhiladelphia

18h 45m

2 stops

OPO9:30 amPorto

Dec 11

OPO12:35 pmPorto

28h 38m

2 stops

PHL12:13 pmPhiladelphia

$759

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PhiladelphiaPorto

PHL Philadelphia - OPO Porto

PHLOPO

Philadelphia

Tue 12/8

12:20 pm-10:35 am

2 stops17h 15m

Porto

Wed 12/16

11:15 am-12:55 am

2 stops18h 40m

$712

PhiladelphiaPorto

PHL Philadelphia - OPO Porto

PHLOPO

Philadelphia

Tue 12/8

7:50 pm-8:00 pm

1 stop19h 10m

Porto

Wed 12/16

8:40 pm-3:50 pm

1 stop24h 10m

$716

PhiladelphiaPorto

PHL Philadelphia - OPO Porto

PHLOPO

Philadelphia

Tue 12/8

12:34 pm-11:45 am

2 stops18h 11m

Porto

Wed 12/16

8:40 pm-3:50 pm

1 stop24h 10m

$720

PhiladelphiaPorto

PHL Philadelphia - OPO Porto

PHLOPO

Philadelphia

Wed 10/14

10:05 am-7:00 am

1 stop15h 55m

Porto

Mon 10/26

7:20 pm-5:05 pm

2 stops25h 45m

$724

PhiladelphiaPorto

PHL Philadelphia - OPO Porto

PHLOPO

Philadelphia

Tue 12/29

9:50 am-9:30 am

2 stops18h 40m

Porto

Fri 1/8

6:00 am-4:21 pm

2 stops39h 21m

$740

PhiladelphiaPorto

PHL Philadelphia - OPO Porto

PHLOPO

Philadelphia

Sat 10/17

7:30 pm-9:45 am

2 stops33h 15m

Porto

Wed 10/28

6:00 am-9:49 am

2 stops31h 49m

$742

PhiladelphiaPorto

PHL Philadelphia - OPO Porto

PHLOPO

Philadelphia

Fri 10/30

8:40 pm-8:00 pm

1 stop19h 20m

Porto

Thu 11/5

8:40 pm-4:20 pm

1 stop24h 40m

$743

PhiladelphiaPorto

PHL Philadelphia - OPO Porto

PHLOPO

Philadelphia

Sat 10/17

9:02 pm-11:45 am

2 stops33h 43m

Porto

Wed 10/28

8:40 pm-4:35 pm

1 stop23h 55m

$762

PhiladelphiaPorto

PHL Philadelphia - OPO Porto

PHLOPO

Philadelphia

Sat 10/17

5:17 pm-11:45 am

2 stops13h 28m

Porto

Wed 10/28

8:40 pm-4:35 pm

1 stop23h 55m

$801

PhiladelphiaPorto

PHL Philadelphia - OPO Porto

PHLOPO

Philadelphia

Thu 10/29

5:31 pm-11:45 am

2 stops14h 14m

Porto

Sat 11/7

8:40 pm-4:20 pm

1 stop24h 40m

$820

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?

Prices are currently low for flights on this route.

Typical prices usually range from $850 to $930.
The lowest price recently found on this route was $712.

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.

Can stopping save me money on Philadelphia to Porto flights?

You could potentially save up to 41% 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	$348
Fastest flight time	10h 35m
Direct flights	None

The best one-way flight to Porto from Philadelphia in the past 72 hours is $348. The best round-trip flight deal from Philadelphia to Porto found on momondo in the last 72 hours is $712.

The fastest flight from Philadelphia to Porto takes 10h 35m

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. 10h 35m 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 August 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 airline from Philadelphia to Porto?
Based on momondo bookings for flights between Philadelphia and Porto, the leading airline is American Airlines, making up 35% of the total bookings. Other popular airlines include Iberia with 35% and United Airlines with 31%.

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 10,115 reviews	Search United Airlines flights
Iberia	PriceFrom $496	Free Cancellation	Rating 7.0 3,258 reviews	Search Iberia flights
American Airlines	PriceFrom $695	Free Cancellation	Rating 7.1 11,986 reviews	Search American Airlines flights

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Ponte de Lima

Mesao Frio

Penafiel

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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 $348

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 1/3. 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

United Airlines flights from Philadelphia to Porto

Our best United Airlines 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

Best Price Found

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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