HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portugal

$251+ 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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LIS
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Philadelphia to Portugal with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Philadelphia to Portugal

Keep the following information in mind while searching for Philadelphia to Portugal flight deals. Data was last updated January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$444
(Iberia)

One-way from

$251
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$735

Good round-trip deal

$743 or less

Good one-way deal

$601 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. 22% potential increase in price ($291 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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

Find 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 January 8, 2026.

This Iberia deal was found by Cheapflights users on 1/6. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/187:45 pmPHL - OPO
1 stop19h 15mIberia
Wed 2/259:55 pmOPO - PHL
1 stop22h 10mIberia
Deal found 1/6$444
This Iberia deal was found by Cheapflights users on 1/7. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/187:55 pmPHL - OPO
1 stop10h 50mIberia
Tue 2/39:55 pmOPO - PHL
1 stop22h 40mIberia
Deal found 1/7$445
This Iberia deal was found by Cheapflights users on 1/7. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/97:45 pmPHL - OPO
1 stop20h 15mIberia
Mon 3/3010:00 pmOPO - PHL
1 stop22h 25mIberia
Deal found 1/7$453
This Mytrip deal was found by Cheapflights users on 1/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/183:30 pmPHL - OPO
2 stops15h 35mAir Canada
Tue 2/36:00 amOPO - PHL
2 stops21h 46mAir Canada
Deal found 1/7$456
This British Airways deal was found by Cheapflights users on 1/7. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/187:55 pmPHL - OPO
1 stop19h 05mMultiple Airlines
Tue 2/38:20 amOPO - PHL
2 stops17h 05mMultiple Airlines
Deal found 1/7$457
This British Airways deal was found by Cheapflights users on 1/8. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1810:35 amPHL - OPO
2 stops16h 05mMultiple Airlines
Wed 2/258:20 amOPO - PHL
2 stops16h 28mMultiple Airlines
Deal found 1/8$461
This United Airlines deal was found by Cheapflights users on 1/8. 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 3/2412:15 pmPHL - OPO
2 stops17h 15mUnited Airlines
Tue 3/316:00 amOPO - PHL
2 stops21h 43mUnited Airlines
Deal found 1/8$465
This Cheapflightsfares deal was found by Cheapflights users on 1/6. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/97:20 pmPHL - OPO
2 stops18h 15mBritish Airways
Mon 3/309:10 pmOPO - PHL
2 stops23h 15mBritish Airways
Deal found 1/6$475
This FlightHub deal was found by Cheapflights users on 1/7. 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.
Mon 3/163:30 pmPHL - OPO
2 stops16h 35mMultiple Airlines
Tue 3/246:00 amOPO - PHL
1 stop15h 05mMultiple Airlines
Deal found 1/7$478
This Cheapflightsfares deal was found by Cheapflights users on 1/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1510:20 pmPHL - LIS
1 stop12h 20mFinnair
Wed 5/66:35 amLIS - PHL
1 stop15h 55mFinnair
Deal found 1/7$553
This Cheapflightsfares deal was found by Cheapflights users on 1/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:50 pmPHL - LIS
1 stop13h 20mMultiple Airlines
Fri 5/86:35 amLIS - PHL
1 stop15h 55mMultiple Airlines
Deal found 1/7$554
This American Airlines deal was found by Cheapflights users on 1/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/16:35 pmPHL - LIS
1 stop15h 15mAmerican Airlines
Tue 3/108:20 amLIS - PHL
1 stop12h 35mAmerican Airlines
Deal found 1/6$561

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 January 8, 2026.
Use the filters below to find and compare flights from Philadelphia to Portugal that are best for you.

Fly from

Philadelphia

Fly to

Portugal

Route

Depart

Return

Price

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Mon 3/9

7:45 pm-8:00 pm

1 stop20h 15m

Porto

Mon 3/30

10:00 pm-3:25 pm

1 stop22h 25m

$453

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Sun 1/18

7:55 pm-8:00 pm

1 stop19h 05m

Porto

Tue 2/3

8:20 am-8:25 pm

2 stops17h 05m

$457

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Wed 2/18

10:25 am-7:40 am

2 stops16h 15m

Porto

Wed 2/25

8:20 am-9:54 pm

2 stops18h 34m

$461

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Mon 3/16

11:16 am-10:30 am

2 stops19h 14m

Porto

Tue 3/24

11:25 am-4:33 pm

2 stops33h 08m

$479

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Wed 4/22

10:00 am-9:45 am

2 stops18h 45m

Porto

Fri 5/8

6:00 am-4:00 pm

1 stop15h 00m

$487

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Mon 3/16

9:55 am-9:30 am

2 stops19h 35m

Porto

Thu 3/26

6:00 am-5:05 pm

1 stop15h 05m

$487

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Sun 4/19

6:57 pm-6:10 pm

2 stops18h 13m

Porto

Tue 4/28

6:15 am-5:19 pm

2 stops16h 04m

$492

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Fri 2/20

7:45 pm-4:00 pm

1 stop15h 15m

Porto

Fri 2/27

8:20 am-3:25 pm

1 stop12h 05m

$496

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Tue 5/5

10:20 pm-7:30 pm

1 stop16h 10m

Porto

Thu 5/14

9:55 am-12:00 pm

1 stop31h 05m

$513

PhiladelphiaLisbon

PHL - LIS

PHLLIS

Philadelphia

Wed 4/29

7:50 pm-2:10 pm

1 stop13h 20m

Lisbon Humberto Delgado

Fri 5/8

6:35 am-5:30 pm

1 stop15h 55m

$563

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

Showing 1-10 of 58 results
1
2
3
...
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 $456). 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 January 8, 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.

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 January 8, 2026.
Read reviews from past customers who have flown Finnair, United Airlines, and American 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
7.6
Good
1,346 reviews

Boarding

7.7

Food

6.7

Comfort

7.4

Entertainment

6.9

Overall

7.6

Crew

8.2

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
7.6
Good
1,346 reviews
Finnair
7.6
Good
1,346 reviews

Boarding

7.7

Food

6.7

Comfort

7.4

Entertainment

6.9

Overall

7.6

Crew

8.2

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 :(
United Airlines
7.4
Good
9,139 reviews
Finnair
7.6
Good
1,346 reviews

Boarding

7.7

Food

6.7

Comfort

7.4

Entertainment

6.9

Overall

7.6

Crew

8.2

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
7.2
Good
11,097 reviews
Finnair
7.6
Good
1,346 reviews

Boarding

7.7

Food

6.7

Comfort

7.4

Entertainment

6.9

Overall

7.6

Crew

8.2

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
3,076 reviews
Finnair
7.6
Good
1,346 reviews

Boarding

7.7

Food

6.7

Comfort

7.4

Entertainment

6.9

Overall

7.6

Crew

8.2

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
7,657 reviews
Finnair
7.6
Good
1,346 reviews

Boarding

7.7

Food

6.7

Comfort

7.4

Entertainment

6.9

Overall

7.6

Crew

8.2

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, 11 users have taken a look at flights from Philadelphia to Portugal.

  • How long is the flight from Philadelphia to Portugal?

    For as low as $584, Iberia can have you in Portugal from Philadelphia in 15h 15m. Philadelphia and Portugal are separated by a distance of 3447 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), TAP AIR PORTUGAL ($350), and Iberia ($428).

  • 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 (90%), Finnair (90%) or Iberia (90%) 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 $1,402, our data indicates the cheapest price to be $501. The most popular route (Philadelphia - Lisbon Humberto Delgado), is priced around $506.

  • 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 $456). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Philadelphia to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
John F Kennedy Intl to Charles de Gaulle flights
Newark to Heathrow flights
Newark to Charles de Gaulle flights
John F Kennedy Intl to Leonardo da Vinci/Fiumicino flights
Newark to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to Istanbul flights
LaGuardia to Heathrow flights
Dulles Intl to Heathrow flights
Newark to Orly flights
John F Kennedy Intl to London City flights
John F Kennedy Intl to Orly flights
Newark to Gatwick flights
John F Kennedy Intl to Lisbon flights
Newark to Athens flights
John F Kennedy Intl to Barcelona-El Prat flights
John F Kennedy Intl to Madrid flights
LaGuardia to Charles de Gaulle flights
Newark to Madrid flights
Newark to Dublin flights
John F Kennedy Intl to Dublin flights
Newark to Lisbon flights
Newark to Malpensa flights
Newark to Barcelona-El Prat flights
Dulles Intl to Charles de Gaulle flights
John F Kennedy Intl to Malpensa flights
LaGuardia to Gatwick flights
John F Kennedy Intl to Stansted flights
John F Kennedy Intl to Amsterdam flights
John F Kennedy Intl to Gatwick flights
John F Kennedy Intl to Athens flights
Dulles Intl to Leonardo da Vinci/Fiumicino flights
LaGuardia to Leonardo da Vinci/Fiumicino flights
Newark to Amsterdam flights
John F Kennedy Intl to Luton flights
John F Kennedy Intl to Zurich flights
Newark to London City flights
Newark to Stansted flights
Dulles Intl to Istanbul flights
Newark to Zurich flights
Dulles Intl to Madrid flights
Dulles Intl to Gatwick flights
LaGuardia to Athens flights
John F Kennedy Intl to Linate flights
Reagan-National to Heathrow flights
Dulles Intl to Lisbon flights
Newark to Luton flights
John F Kennedy Intl to Geneva flights
John F Kennedy Intl to Frankfurt flights
LaGuardia to Lisbon flights

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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$489Average$842FlexibilityNo cancel feeOn-time69%
IberiaCheapest$561Average$938FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$567Average$980FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$576Average$902FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$576Average$870FlexibilityNo cancel feeOn-time76%
FinnairCheapest$617Average$959FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$639Average$1,039FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$666Average$811FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.