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$357+ Cheap flights from Philadelphia (PHL) to Portugal

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LIS
May 1 — May 81
Fri 5/1
Fri 5/8
1 adult, Economy
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Cheap flight deals from Philadelphia to Portugal

Cheapest flights from Philadelphia to Portugal
Explore the most affordable flight options available from Philadelphia to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2026.

This CrystalTravel deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:40 pm
PHL
-
OPO
1 stop13h 00m
Lufthansa
Tue 11/176:00 am
OPO
-
PHL
1 stop15h 05m
Lufthansa
Deal found 3/28$683
This FlightHub deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:25 pm
PHL
-
OPO
1 stop10h 35m
Multiple Airlines
Tue 11/36:00 am
OPO
-
PHL
1 stop15h 05m
Multiple Airlines
Deal found 3/30$695
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:00 pm
PHL
-
OPO
2 stops30h 00m
United Airlines
Tue 11/36:00 am
OPO
-
PHL
1 stop15h 05m
United Airlines
Deal found 3/30$699
This United Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1011:39 am
PHL
-
OPO
2 stops16h 51m
United Airlines
Tue 11/176:00 am
OPO
-
PHL
1 stop15h 05m
United Airlines
Deal found 3/28$701
This FlightHub deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/143:30 pm
PHL
-
OPO
2 stops46h 00m
Multiple Airlines
Fri 4/246:00 am
OPO
-
PHL
1 stop15h 05m
Multiple Airlines
Deal found 3/31$704
This FlightHub deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/145:40 pm
PHL
-
OPO
1 stop12h 30m
Lufthansa
Fri 4/246:00 am
OPO
-
PHL
1 stop15h 05m
Lufthansa
Deal found 3/31$709
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:10 am
PHL
-
OPO
2 stops19h 50m
United Airlines
Wed 11/46:00 am
OPO
-
PHL
2 stops36h 51m
United Airlines
Deal found 3/30$710
This United Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1411:36 am
PHL
-
OPO
2 stops23h 09m
United Airlines
Fri 4/246:00 am
OPO
-
PHL
1 stop15h 05m
United Airlines
Deal found 3/28$715
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:25 pm
PHL
-
OPO
1 stop10h 35m
United Airlines
Fri 11/612:35 pm
OPO
-
PHL
2 stops30h 16m
United Airlines
Deal found 3/30$719
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:10 am
PHL
-
OPO
2 stops22h 35m
United Airlines
Thu 11/512:35 pm
OPO
-
PHL
2 stops25h 49m
United Airlines
Deal found 3/30$720
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:32 am
PHL
-
FAO
2 stops18h 18m
United Airlines
Mon 8/2411:40 am
FAO
-
PHL
2 stops27h 03m
United Airlines
Deal found 3/30$816
This KLM deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/124:05 pm
PHL
-
FAO
2 stops16h 55m
KLM
Thu 8/209:05 pm
FAO
-
PHL
2 stops26h 24m
KLM
Deal found 3/30$826

Find flight deals from Philadelphia to Portugal

Keep the following information in mind while searching for Philadelphia to Portugal flight deals. Data was last updated April 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$704
(FlightHub)

One-way from

$357
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$970

Good round-trip deal

$1,051 or less

Good one-way deal

$736 or less
Provider with most accurate pricing for Philadelphia-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Lisbon Humberto Delgado flights.
Search Deals
From Philadelphia to Portugal
Search Deals
One-way flight from Philadelphia to Portugal
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($264 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Philadelphia to Portugal.
Search Deals
Price to beat on a one-way flight from Philadelphia to Portugal.
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated April 1, 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

Cheapest round-trip

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Mon 9/28

1:00 pm-9:45 am

2 stops15h 45m

Porto

Wed 10/7

12:35 pm-1:51 pm

2 stops30h 16m

$780

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Tue 8/4

6:10 am-7:00 am

2 stops19h 50m

Porto

Wed 8/19

2:25 pm-9:43 am

2 stops24h 18m

$782

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Mon 8/3

6:00 am-6:55 am

2 stops19h 55m

Porto

Wed 8/12

2:25 pm-7:19 pm

2 stops33h 54m

$825

PhiladelphiaFaro

PHL - FAO

PHLFAO

Philadelphia

Mon 5/11

5:18 pm-7:25 pm

2 stops21h 07m

Faro

Mon 5/18

9:45 pm-7:27 pm

2 stops26h 42m

$827

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Tue 8/4

3:25 pm-7:00 am

1 stop10h 35m

Porto

Wed 8/12

2:25 pm-9:34 pm

1 stop12h 09m

$832

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Wed 8/5

10:05 am-7:00 am

1 stop15h 55m

Porto

Wed 8/12

2:25 pm-9:34 pm

1 stop12h 09m

$832

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Sat 9/19

11:30 am-6:55 am

2 stops14h 25m

Porto

Tue 9/29

12:15 pm-12:37 am

2 stops17h 22m

$843

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Thu 8/6

6:00 am-6:55 am

2 stops19h 55m

Porto

Wed 8/19

2:25 pm-12:50 am

2 stops15h 25m

$880

PhiladelphiaFunchal

PHL - FNC

PHLFNC

Philadelphia

Tue 5/12

6:33 pm-1:30 am

2 stops25h 57m

Funchal Madeira

Mon 5/18

2:20 pm-7:34 am

2 stops22h 14m

$881

PhiladelphiaPonta Delgada

PHL - PDL

PHLPDL

Philadelphia

Sun 9/13

6:00 am-9:45 am

2 stops23h 45m

Ponta Delgada Nordela

Sun 9/20

6:30 am-9:50 am

2 stops31h 20m

$926

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/28

Showing 1-10 of 55 resultsSorted by cheapest first
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6

Best time to book a flight from Philadelphia to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Portugal

What is the cheapest month to book a flight from Philadelphia to Portugal?

Currently, July is the cheapest month in which you can book a flight from Philadelphia to Portugal (average of $374). Flying from Philadelphia to Portugal in June is currently the most expensive (average of $453). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHL to PT?

Find hourly flight availability from Philadelphia to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 1, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Philadelphia to Portugal as you normally would.

Weekly flight availability from Philadelphia to Portugal

Explore weekly flight availability from Philadelphia to Portugal. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 1, 2026.

The most flights from PHL to PT0 are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated April 1, 2026.
Read reviews from past customers who have flown Finnair,Aer Lingus, andAmerican Airlines from Philadelphia to Portugal. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.7
Good
1,376 reviews

Food

6.7

Boarding

7.7

Entertainment

6.9

Overall

7.7

Crew

8.2

Comfort

7.5

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
Finnair
7.7
Good
1,376 reviews
Finnair
7.7
Good
1,376 reviews

Food

6.7

Boarding

7.7

Entertainment

6.9

Overall

7.7

Crew

8.2

Comfort

7.5

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
Aer Lingus
7.2
Good
1,493 reviews
Finnair
7.7
Good
1,376 reviews

Food

6.7

Boarding

7.7

Entertainment

6.9

Overall

7.7

Crew

8.2

Comfort

7.5

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
American Airlines
7.1
Good
11,543 reviews
Finnair
7.7
Good
1,376 reviews

Food

6.7

Boarding

7.7

Entertainment

6.9

Overall

7.7

Crew

8.2

Comfort

7.5

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
Iberia
7.0
Good
3,162 reviews
Finnair
7.7
Good
1,376 reviews

Food

6.7

Boarding

7.7

Entertainment

6.9

Overall

7.7

Crew

8.2

Comfort

7.5

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
British Airways
6.7
Okay
7,839 reviews
Finnair
7.7
Good
1,376 reviews

Food

6.7

Boarding

7.7

Entertainment

6.9

Overall

7.7

Crew

8.2

Comfort

7.5

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Philadelphia to Portugal?

    Philadelphia (PHL), located 7.0 mi from the city center, is the airport you fly out of when you book flights from Philadelphia to Portugal.

  • How popular is this Philadelphia to Portugal flight route?

    Within the past month, 9 users have taken a look at flights from Philadelphia to Portugal.

  • How long is the flight from Philadelphia to Portugal?

    For as low as $780, United Airlines can have you in Portugal from Philadelphia in 15h 45m. Philadelphia and Portugal are separated by a distance of 3403 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Philadelphia to Portugal one-way?

    The cheapest airlines for a one-way flight from Philadelphia to Portugal are United Airlines ($248), Iberia ($287), and TAP AIR PORTUGAL ($350).

  • What are the most popular routes from Philadelphia to Portugal?

    Most travelers choose Philadelphia - Lisbon Humberto Delgado, Philadelphia - Porto or Philadelphia - Ponta Delgada Nordela when deciding on the best route from Philadelphia to Portugal.

  • What are the most reliable airlines from Philadelphia to Portugal?

    No one likes to see their flight delayed. When booking a flight from Philadelphia to Portugal consider choosing American Airlines (81%), Finnair (81%) or Iberia (81%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Philadelphia to Portugal?

    Looking for the cheapest flight from Philadelphia to Portugal? While on average our users pay $1,527, our data indicates the cheapest price to be $662. The most popular route (Philadelphia - Lisbon Humberto Delgado), is priced around $717.

  • Can I find deals for flights from Philadelphia to Portugal that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Portugal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Portugal.

  • Can I find deals for business class flights from Philadelphia to Portugal?

    Yes. Cheapflights offers flight deals from Philadelphia to Portugal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Philadelphia to Portugal?

    Currently, July is the cheapest month in which you can book a flight from Philadelphia to Portugal (average of $374). Flying from Philadelphia to Portugal in June is currently the most expensive (average of $453). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Philadelphia to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Philadelphia to Portugal

Discover the top 8 airlines that operate flights from Philadelphia to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$489Average$773FlexibilityNo cancel feeOn-time69%
IberiaCheapest$532Average$925FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$567Average$1,003FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$568Average$934FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$575Average$910FlexibilityNo cancel feeOn-time70%
TAP AIR PORTUGALCheapest$631Average$817FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$634Average$1,039FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$665Average$969FlexibilityNo cancel feeOn-time76%

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