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Cheap flights from Philadelphia to Portugal from $250

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 Portugal departing on 2/23. 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
0 bags

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Find the cheapest flights from Philadelphia to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
12:15 pm - 9:30 am
PHL
-
OPO
17h 15m
2 stops
United Airlines Logo
6:00 am - 2:17 pm
OPO
-
PHL
36h 17m
2 stops
$492United Airlines
Mon, Mar 9 - Tue, Mar 24
Air Canada Logo
3:30 pm - 12:05 pm
PHL
-
OPO
15h 35m
2 stops
Air Canada Logo
6:00 am - 3:26 pm
OPO
-
PHL
38h 26m
2 stops
$493Air Canada
Wed, Feb 18 - Wed, Feb 25
Multiple Airlines Logo
12:16 pm - 10:30 am
PHL
-
OPO
17h 14m
2 stops
Multiple Airlines Logo
11:15 am - 12:24 am
OPO
-
PHL
18h 09m
2 stops
$494Multiple Airlines
Tue, Feb 24 - Tue, Mar 3
American Airlines Logo
7:45 pm - 11:45 am
PHL
-
OPO
11h 00m
1 stop
American Airlines Logo
8:20 am - 8:35 pm
OPO
-
PHL
17h 15m
2 stops
$506American Airlines
Wed, Feb 18 - Wed, Feb 25
American Airlines Logo
3:57 pm - 11:45 am
PHL
-
OPO
14h 48m
2 stops
American Airlines Logo
8:40 pm - 3:25 pm
OPO
-
PHL
23h 45m
1 stop
$512American Airlines
Wed, Feb 18 - Wed, Feb 25
Aer Lingus Logo
8:25 pm - 9:35 pm
PHL
-
LIS
20h 10m
1 stop
Aer Lingus Logo
11:25 am - 6:55 pm
LIS
-
PHL
12h 30m
1 stop
$627Aer Lingus
Sat, Apr 25 - Thu, Apr 30
Lufthansa Logo
6:40 pm - 11:35 am
PHL
-
LIS
12h 55m
1 stop
Lufthansa Logo
5:00 am - 5:05 pm
LIS
-
PHL
16h 05m
1 stop
$633Lufthansa
Tue, Mar 17 - Tue, Mar 24
Lufthansa Logo
6:40 pm - 11:35 am
PHL
-
LIS
12h 55m
1 stop
Lufthansa Logo
6:10 am - 5:05 pm
LIS
-
PHL
14h 55m
2 stops
$650Lufthansa
Tue, Mar 17 - Tue, Mar 24
TAP AIR PORTUGAL Logo
6:00 am - 5:35 am
PHL
-
LIS
19h 35m
1 stop
TAP AIR PORTUGAL Logo
11:40 am - 10:31 pm
LIS
-
PHL
14h 51m
1 stop
$653TAP AIR PORTUGAL
Mon, Mar 9 - Wed, Mar 18
TAP AIR PORTUGAL Logo
3:02 pm - 9:15 am
PHL
-
FNC
13h 13m
2 stops
TAP AIR PORTUGAL Logo
4:10 am - 10:36 pm
FNC
-
PHL
23h 26m
2 stops
$707TAP AIR PORTUGAL
Wed, Feb 18 - Tue, Feb 24

Finnair flights from Philadelphia to Portugal

Our best Finnair deals on Philadelphia to Portugal flight tickets
Finnair
Mar 18
PHL10:00 pmPhiladelphia
6h 55m
LIS8:55 amLisbon Humberto Delgado
Mar 31
LIS6:35 amLisbon Humberto Delgado
16h 00m
1 stop
PHL5:35 pmPhiladelphia
$655
Finnair
Mar 18
PHL10:00 pmPhiladelphia
6h 55m
LIS8:55 amLisbon Humberto Delgado
Mar 31
LIS6:35 amLisbon Humberto Delgado
16h 00m
1 stop
PHL5:35 pmPhiladelphia
$665
Finnair
Mar 16
PHL10:10 pmPhiladelphia
6h 55m
LIS9:05 amLisbon Humberto Delgado
Mar 25
LIS11:05 amLisbon Humberto Delgado
8h 00m
PHL3:05 pmPhiladelphia
$670

TAP AIR PORTUGAL flights from Philadelphia to Portugal

Our best TAP AIR PORTUGAL deals on Philadelphia to Portugal flight tickets
TAP AIR PORTUGAL
Mar 9
PHL6:00 amPhiladelphia
19h 35m
1 stop
LIS5:35 amLisbon Humberto Delgado
Mar 18
LIS11:40 amLisbon Humberto Delgado
14h 51m
1 stop
PHL10:31 pmPhiladelphia
$653
TAP AIR PORTUGAL
Mar 5
PHL6:00 amPhiladelphia
18h 35m
1 stop
LIS5:35 amLisbon Humberto Delgado
Mar 18
LIS11:40 amLisbon Humberto Delgado
11h 44m
1 stop
PHL7:24 pmPhiladelphia
$672
TAP AIR PORTUGAL
Mar 3
PHL3:02 pmPhiladelphia
9h 33m
1 stop
LIS5:35 amLisbon Humberto Delgado
Mar 13
LIS5:15 pmLisbon Humberto Delgado
33h 16m
1 stop
PHL10:31 pmPhiladelphia
$673

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Portugal 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 January 26, 2026.
Use the filters below to find and compare flights from Philadelphia to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Mon 3/9

12:15 pm-9:30 am

2 stops17h 15m

Porto

Tue 3/24

6:00 am-2:17 pm

2 stops36h 17m

$492

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Wed 2/18

3:30 pm-12:05 pm

2 stops15h 35m

Porto

Wed 2/25

6:00 am-3:26 pm

2 stops38h 26m

$493

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Tue 2/24

12:16 pm-10:30 am

2 stops17h 14m

Porto

Tue 3/3

11:15 am-12:24 am

2 stops18h 09m

$494

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Wed 2/18

7:45 pm-11:45 am

1 stop11h 00m

Porto

Wed 2/25

8:20 am-8:35 pm

2 stops17h 15m

$506

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Wed 2/18

3:57 pm-11:45 am

2 stops14h 48m

Porto

Wed 2/25

8:40 pm-3:25 pm

1 stop23h 45m

$512

PhiladelphiaLisbon

PHL - LIS

PHLLIS

Philadelphia

Sat 4/25

8:25 pm-9:35 pm

1 stop20h 10m

Lisbon Humberto Delgado

Thu 4/30

11:25 am-6:55 pm

1 stop12h 30m

$627

PhiladelphiaLisbon

PHL - LIS

PHLLIS

Philadelphia

Tue 3/17

6:40 pm-11:35 am

1 stop12h 55m

Lisbon Humberto Delgado

Tue 3/24

5:00 am-5:05 pm

1 stop16h 05m

$633

PhiladelphiaLisbon

PHL - LIS

PHLLIS

Philadelphia

Tue 3/17

6:40 pm-11:35 am

1 stop12h 55m

Lisbon Humberto Delgado

Tue 3/24

6:10 am-5:05 pm

2 stops14h 55m

$650

PhiladelphiaLisbon

PHL - LIS

PHLLIS

Philadelphia

Mon 3/9

6:00 am-5:35 am

1 stop19h 35m

Lisbon Humberto Delgado

Wed 3/18

11:40 am-10:31 pm

1 stop14h 51m

$653

PhiladelphiaFunchal

PHL - FNC

PHLFNC

Philadelphia

Wed 2/18

3:02 pm-9:15 am

2 stops13h 13m

Funchal Madeira

Tue 2/24

4:10 am-10:36 pm

2 stops23h 26m

$707

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 Portugal from

How to get the cheapest flight ticket from Philadelphia to Portugal

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 Portugal?

The cheapest month to fly to Portugal from Philadelphia is in November. Flight prices, which tend to average around $707, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Portugal from Philadelphia during February instead. Flights to Portugal in February, while not as cheap as those in November, still average around $740.

What is the cheapest day to depart on your flight to Portugal?

According to our data, Tuesday is the cheapest day to fly to Portugal from Philadelphia. The lowest ticket price found for a Tuesday departure recently was $951. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Friday, with ticket prices averaging around $1,115.

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is in the evening. Flights from Philadelphia to Portugal during this time can be as low as $1,012. In the afternoon is when there is more demand to fly to Portugal, so prices are often more expensive at around $1,415 per ticket.

What is the cheapest Philadelphia to Portugal flight route?

Fly from Philadelphia to Lisbon Humberto Delgado for the best Philadelphia - Portugal flight prices

How far in advance should I book a flight to Portugal?

You are more likely to see cheaper flights to Portugal from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $980 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Philadelphia for as low as $816 on momondo.

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

There are 3 cabin classes available to choose from on Philadelphia to Portugal 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 Portugal flights?

You could potentially save up to 43% on your flight if you consider stops on a Philadelphia to Portugal flight.

Cheap Philadelphia to Portugal flight deals and tips

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

Best Price Found

$602

Fastest flight time

6h 30m

Direct flights

Every day

Airports in Portugal

99 airports
The best one-way flight to Portugal from Philadelphia in the past 72 hours is $602. The best round-trip flight deal from Philadelphia to Portugal found on momondo in the last 72 hours is $809.
The fastest flight from Philadelphia to Portugal takes 6h 30m
Direct flights go from Philadelphia to Portugal every day.
There are 99 airports in Portugal. From Philadelphia there are direct flights to Lisbon Humberto Delgado (LIS).
Search flight deals

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

    Prices for flights from Philadelphia Airport to Portugal are updated daily.

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

  • How old do you have to be to fly from Philadelphia Airport to Portugal?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to Portugal.

  • What documentation or ID do you need to fly to Portugal?

    The travel and health documents you'll need for your trip to Portugal may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portugal. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Philadelphia to Portugal?

Best airlines flying from Philadelphia to Portugal

Compare and see reviews for airlines that fly from Philadelphia to Portugal with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $489Free CancellationRating
7.4
9,204 reviews
Search United Airlines flights
IberiaPriceFrom $546Free CancellationRating
7.0
3,098 reviews
Search Iberia flights
American AirlinesPriceFrom $567Free CancellationRating
7.2
11,197 reviews
Search American Airlines flights
British AirwaysPriceFrom $575Free CancellationRating
6.7
7,702 reviews
Search British Airways flights
LufthansaPriceFrom $576Free CancellationRating
6.8
7,748 reviews
Search Lufthansa flights
FinnairPriceFrom $634Free CancellationRating
7.6
1,356 reviews
Search Finnair flights
Aer LingusPriceFrom $639Free CancellationRating
7.2
1,442 reviews
Search Aer Lingus flights
TAP AIR PORTUGALPriceFrom $666Free CancellationRating
7.1
2,130 reviews
Search TAP AIR PORTUGAL flights

Why use momondo?

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

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 Portugal from Philadelphia.

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

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

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

momondo helps you find the best flight between Philadelphia and Portugal by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Portugal from Philadelphia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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