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Cheap flights from Pennsylvania to Porto from $252

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pennsylvania to Porto departing on 8/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Pennsylvania to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
10:30 am - 9:30 am
PHL
-
OPO
18h 00m
2 stops
United Airlines Logo
6:00 am - 4:05 pm
OPO
-
PHL
15h 05m
1 stop
$701United Airlines
Wed, Nov 18 - Thu, Nov 26
United Airlines Logo
2:37 pm - 9:30 am
PHL
-
OPO
13h 53m
2 stops
United Airlines Logo
6:00 am - 4:05 pm
OPO
-
PHL
15h 05m
1 stop
$705United Airlines
Wed, Dec 9 - Tue, Dec 15
Lufthansa Logo
5:40 pm - 3:20 pm
PHL
-
OPO
16h 40m
1 stop
Lufthansa Logo
6:00 am - 4:05 pm
OPO
-
PHL
15h 05m
1 stop
$720Lufthansa
Sun, Dec 6 - Tue, Dec 15
Lufthansa Logo
5:40 pm - 11:45 am
PHL
-
OPO
13h 05m
1 stop
Lufthansa Logo
12:35 pm - 4:05 pm
OPO
-
PHL
32h 30m
1 stop
$734Lufthansa
Sun, Dec 6 - Mon, Dec 14
TAP AIR PORTUGAL Logo
11:25 pm - 11:00 am
EWR
-
OPO
6h 35mnonstop
TAP AIR PORTUGAL Logo
7:00 am - 3:20 pm
OPO
-
EWR
13h 20m
1 stop
$735TAP AIR PORTUGAL
Fri, Nov 20 - Mon, Nov 30
Multiple Airlines Logo
8:25 pm - 8:25 pm
EWR
-
OPO
19h 00m
2 stops
Multiple Airlines Logo
6:15 am - 9:00 pm
OPO
-
EWR
19h 45m
1 stop
$735Multiple Airlines
Sat, Sep 19 - Mon, Oct 5
Iberia Logo
7:50 pm - 8:00 pm
PHL
-
OPO
19h 10m
1 stop
Iberia Logo
8:40 pm - 4:20 pm
OPO
-
PHL
24h 40m
1 stop
$736Iberia
Mon, Nov 2 - Mon, Nov 9
Multiple Airlines Logo
11:00 pm - 11:55 pm
EWR
-
OPO
19h 55m
2 stops
Multiple Airlines Logo
6:15 am - 9:00 pm
OPO
-
EWR
19h 45m
2 stops
$736Multiple Airlines
Thu, Sep 17 - Tue, Sep 22
TAP AIR PORTUGAL Logo
5:25 pm - 10:00 am
IAD
-
OPO
11h 35m
1 stop
TAP AIR PORTUGAL Logo
11:00 am - 8:35 pm
OPO
-
IAD
14h 35m
1 stop
$738TAP AIR PORTUGAL
Thu, Nov 5 - Fri, Nov 13
Iberia Logo
6:38 pm - 11:45 am
PHL
-
OPO
12h 07m
2 stops
Iberia Logo
12:25 pm - 4:20 pm
OPO
-
PHL
32h 55m
1 stop
$740Iberia
Wed, Nov 11 - Mon, Nov 16

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United Airlines flights from Pennsylvania to Porto

Our best United Airlines deals on Pennsylvania to Porto flight tickets
United Airlines
Nov 18
PHL10:30 amPhiladelphia
18h 00m
2 stops
OPO9:30 amPorto
Nov 26
OPO6:00 amPorto
15h 05m
1 stop
PHL4:05 pmPhiladelphia
$701
United Airlines
Dec 6
PHL11:39 amPhiladelphia
16h 51m
2 stops
OPO9:30 amPorto
Dec 15
OPO6:00 amPorto
15h 05m
1 stop
PHL4:05 pmPhiladelphia
$705
United Airlines
Nov 18
PHL10:30 amPhiladelphia
18h 00m
2 stops
OPO9:30 amPorto
Nov 26
OPO6:00 amPorto
37h 16m
2 stops
PHL2:16 pmPhiladelphia
$715

Lufthansa flights from Pennsylvania to Porto

Our best Lufthansa deals on Pennsylvania to Porto flight tickets
Lufthansa
Dec 6
PHL5:40 pmPhiladelphia
16h 40m
1 stop
OPO3:20 pmPorto
Dec 15
OPO6:00 amPorto
15h 05m
1 stop
PHL4:05 pmPhiladelphia
$720
Lufthansa
Dec 6
PHL5:40 pmPhiladelphia
13h 05m
1 stop
OPO11:45 amPorto
Dec 14
OPO12:35 pmPorto
32h 30m
1 stop
PHL4:05 pmPhiladelphia
$734
Lufthansa
Dec 6
PHL5:40 pmPhiladelphia
13h 05m
1 stop
OPO11:45 amPorto
Dec 13
OPO6:00 amPorto
15h 05m
1 stop
PHL4:05 pmPhiladelphia
$759

momondo Fare Finder

 
Customize your flight search to find flights from Pennsylvania to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 28, 2026.
Use the filters below to find and compare flights from Pennsylvania to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Wed 11/18

10:30 am-9:30 am

2 stops18h 00m

Porto

Thu 11/26

6:00 am-4:05 pm

1 stop15h 05m

$701

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Wed 12/9

2:37 pm-9:30 am

2 stops13h 53m

Porto

Tue 12/15

6:00 am-4:05 pm

1 stop15h 05m

$705

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Sun 12/6

5:40 pm-3:20 pm

1 stop16h 40m

Porto

Tue 12/15

6:00 am-4:05 pm

1 stop15h 05m

$720

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Sun 12/6

5:40 pm-11:45 am

1 stop13h 05m

Porto

Mon 12/14

12:35 pm-4:05 pm

1 stop32h 30m

$734
Quickest round-trip

NewarkPorto

EWR - OPO

EWROPO

Newark

Fri 11/20

11:25 pm-11:00 am

Nonstop6h 35m

Porto

Mon 11/30

7:00 am-3:20 pm

1 stop13h 20m

$735

NewarkPorto

EWR - OPO

EWROPO

Newark

Sat 9/19

8:25 pm-8:25 pm

2 stops19h 00m

Porto

Mon 10/5

6:15 am-9:00 pm

1 stop19h 45m

$735

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Mon 11/2

7:50 pm-8:00 pm

1 stop19h 10m

Porto

Mon 11/9

8:40 pm-4:20 pm

1 stop24h 40m

$736

NewarkPorto

EWR - OPO

EWROPO

Newark

Thu 9/17

11:00 pm-11:55 pm

2 stops19h 55m

Porto

Tue 9/22

6:15 am-9:00 pm

2 stops19h 45m

$736

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Thu 11/5

5:25 pm-10:00 am

1 stop11h 35m

Porto

Fri 11/13

11:00 am-8:35 pm

1 stop14h 35m

$738

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Wed 11/11

6:38 pm-11:45 am

2 stops12h 07m

Porto

Mon 11/16

12:25 pm-4:20 pm

1 stop32h 55m

$740

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Porto from

How to get the cheapest flight ticket from Pennsylvania 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

What is the cheapest month to fly to Porto?

The month of January is, on average, the cheapest month to fly to Porto from Pennsylvania, with most prices found around $496. If you aren’t able to travel during the month of January, then book flights to Porto from Pennsylvania during November instead. Flights to Porto in November, while not as cheap as those in January, still average around $615.

Can stopping save me money on Pennsylvania to Porto flights?

You could potentially save up to 15% on your flight if you consider stops on a Pennsylvania to Porto flight.

Cheap Pennsylvania to Porto flight deals and tips

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

Fastest flight time

6h 35m

Direct flights

Every day

Airports in Porto

1 airport
The fastest flight from Pennsylvania to Porto takes 6h 35m
Direct flights go from Pennsylvania to Porto every day.
There is 1 airport in Porto. From Pennsylvania there are direct flights to Porto (OPO).
Search flight deals

Frequently asked questions about flying from Pennsylvania to Porto

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

    Prices for flights from Pennsylvania to Porto Airport are updated daily.

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

  • How old do you have to be to fly from Pennsylvania to Porto Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pennsylvania to Porto Airport.

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

    The necessary travel and health documents for your Porto 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.

Best airlines flying from Pennsylvania to Porto

Compare and see reviews for airlines that fly from Pennsylvania to Porto with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $489Free CancellationRating
7.4
10,050 reviews
Search United Airlines flights
IberiaPriceFrom $546Free CancellationRating
7.0
3,259 reviews
Search Iberia flights
American AirlinesPriceFrom $695Free CancellationRating
7.1
11,840 reviews
Search American Airlines flights

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Coimbra
Braga
Aveiro
Matosinhos
Pinhao
Esposende
Lamego
Chaves
Arcos de Valdevez
Guimarães
Viseu
Espinho
Ponte de Lima
Mesao Frio
Penafiel
Baiao

Why use momondo?

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

Finding the right flight to Porto from Pennsylvania is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Porto quick and easy, saving you time and money.

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

Flights from Pennsylvania to Porto 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 Pennsylvania to Porto?

Once you have performed a search for Pennsylvania 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 Pennsylvania to Porto right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Pennsylvania to Porto now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Porto and let you know when they change.

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