Portugal

$287+ 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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LIS
Jul 31 — Aug 71
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

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 July 1, 2026.

This United Airlines deal was found by Cheapflights users on 7/1. 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 11/46:00 am
PHL
-
LIS
1 stop23h 20m
United Airlines
Sun 11/810:40 am
LIS
-
PHL
1 stop33h 04m
United Airlines
Deal found 7/1$702
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Sun 12/68:00 pm
PHL
-
LIS
1 stop9h 05m
United Airlines
Thu 12/105:00 am
LIS
-
PHL
1 stop16h 05m
United Airlines
Deal found 6/30$704
This United deal was found by Cheapflights users on 6/30. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:00 am
PHL
-
LIS
1 stop23h 20m
Multiple Airlines
Mon 11/1611:20 am
LIS
-
PHL
1 stop34h 01m
Multiple Airlines
Deal found 6/30$707
This Air Canada deal was found by Cheapflights users on 7/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/303:20 pm
PHL
-
LIS
1 stop14h 20m
Multiple Airlines
Sun 12/65:00 am
LIS
-
PHL
2 stops16h 21m
Multiple Airlines
Deal found 7/1$711
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Sun 11/2910:30 am
PHL
-
LIS
1 stop18h 35m
United Airlines
Wed 12/911:20 am
LIS
-
PHL
2 stops32h 02m
United Airlines
Deal found 6/30$712
This KLM deal was found by Cheapflights users on 6/26. 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.
Mon 12/75:38 pm
PHL
-
LIS
1 stop10h 22m
KLM
Tue 12/155:00 am
LIS
-
PHL
2 stops17h 19m
KLM
Deal found 6/26$716
This Booking.com deal was found by Cheapflights users on 6/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:00 am
PHL
-
LIS
1 stop23h 05m
Multiple Airlines
Tue 10/275:00 am
LIS
-
PHL
1 stop16h 05m
Multiple Airlines
Deal found 6/30$721
This Gotogate deal was found by Cheapflights users on 6/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/173:25 pm
PHL
-
OPO
1 stop10h 35m
Multiple Airlines
Tue 9/112:15 pm
OPO
-
PHL
1 stop14h 19m
Multiple Airlines
Deal found 6/29$736
This Gotogate deal was found by Cheapflights users on 6/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/173:25 pm
PHL
-
OPO
1 stop10h 35m
Air Canada
Tue 9/112:15 pm
OPO
-
PHL
1 stop31h 34m
Air Canada
Deal found 6/28$738
This Delta deal was found by Cheapflights users on 6/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/61:20 pm
PHL
-
OPO
2 stops16h 15m
Delta
Tue 12/811:15 am
OPO
-
PHL
2 stops18h 36m
Delta
Deal found 6/28$750
This Gotogate deal was found by Cheapflights users on 6/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2110:05 am
PHL
-
OPO
2 stops20h 20m
Multiple Airlines
Mon 9/287:20 pm
OPO
-
PHL
2 stops25h 45m
Multiple Airlines
Deal found 6/28$752
This United Airlines deal was found by Cheapflights users on 6/28. 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 8/183:25 pm
PHL
-
OPO
1 stop10h 35m
United Airlines
Tue 8/2512:15 pm
OPO
-
PHL
2 stops31h 25m
United Airlines
Deal found 6/28$753

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 July 1, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$704
(United Airlines)

One-way from

$287
(KAYAK)

Popular in

June

Cheapest in

January

Average price

$1,432

Good round-trip deal

$944 or less

Good one-way deal

$466 or less
Provider with most accurate pricing for Philadelphia-Lisbon Humberto Delgado flight deals.
Provider most trusted by Cheapflights users for Philadelphia-Lisbon Humberto Delgado flights.
From Philadelphia to Portugal
One-way flight from Philadelphia to Portugal
Highest demand for flights based on searches. 25% potential increase in price ($360 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($45 potential savings vs. average RT price).
Average for round-trip flights in July 2026
Price to beat on a round-trip flight from Philadelphia to Portugal.
Price to beat on a one-way flight from Philadelphia to Portugal.

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 July 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

PhiladelphiaLisbon

PHL - LIS

PHLLIS

Philadelphia

Wed 10/14

6:15 am-9:20 am

2 stops22h 05m

Lisbon Humberto Delgado

Sat 10/24

11:25 am-2:44 pm

1 stop32h 19m

$753

PhiladelphiaLisbon

PHL - LIS

PHLLIS

Philadelphia

Sun 12/6

6:51 pm-10:40 am

2 stops34h 49m

Lisbon Humberto Delgado

Thu 12/10

5:00 am-4:05 pm

1 stop16h 05m

$769

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Tue 10/13

3:25 pm-7:00 am

1 stop10h 35m

Porto

Sat 10/31

6:00 am-5:05 pm

1 stop15h 05m

$785

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Thu 10/29

11:24 am-9:30 am

2 stops18h 06m

Porto

Sat 11/7

6:00 am-4:05 pm

1 stop15h 05m

$800

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Mon 9/21

5:40 pm-11:15 am

1 stop12h 35m

Porto

Mon 9/28

12:10 pm-9:42 am

2 stops50h 32m

$802

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Sun 10/25

7:21 pm-3:25 pm

2 stops16h 04m

Porto

Sun 11/1

11:30 am-11:12 pm

2 stops16h 42m

$812
Quickest round-trip

PhiladelphiaLisbon

PHL - LIS

PHLLIS

Philadelphia

Mon 11/30

9:25 pm-9:05 am

Nonstop6h 40m

Lisbon Humberto Delgado

Sun 12/6

7:45 am-3:50 pm

1 stop13h 05m

$817

PhiladelphiaFaro

PHL - FAO

PHLFAO

Philadelphia

Mon 8/17

6:59 pm-7:30 pm

2 stops19h 31m

Faro

Mon 8/31

9:45 pm-7:58 pm

2 stops27h 13m

$817

PhiladelphiaFaro

PHL - FAO

PHLFAO

Philadelphia

Mon 8/10

3:58 pm-7:30 pm

2 stops22h 32m

Faro

Wed 8/26

8:50 am-11:26 pm

2 stops19h 36m

$818

PhiladelphiaFaro

PHL - FAO

PHLFAO

Philadelphia

Mon 8/17

10:34 am-9:10 am

2 stops17h 36m

Faro

Mon 8/31

3:25 pm-4:05 pm

1 stop29h 40m

$823

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 60 resultsSorted by cheapest first
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, March is the cheapest month in which you can book a flight from Philadelphia to Portugal (average of $106). Flying from Philadelphia to Portugal in July is currently the most expensive (average of $750). 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 July 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 July 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).

How far ahead should I book a flight from Philadelphia to Portugal?

The best time to book flights from Philadelphia to Portugal is 60 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 July 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.

Food

6.7

Crew

8.2

Entertainment

6.9

Comfort

7.4

Overall

7.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.

Food

6.7

Crew

8.2

Entertainment

6.9

Comfort

7.4

Overall

7.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.

Food

6.7

Crew

8.2

Entertainment

6.9

Comfort

7.4

Overall

7.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.

Food

6.7

Crew

8.2

Entertainment

6.9

Comfort

7.4

Overall

7.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.

Food

6.7

Crew

8.2

Entertainment

6.9

Comfort

7.4

Overall

7.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.

Food

6.7

Crew

8.2

Entertainment

6.9

Comfort

7.4

Overall

7.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.

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?

  • How long is the flight from Philadelphia to Portugal?

    For as low as $817, United Airlines can have you in Portugal from Philadelphia in 6h 40m. 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 Iberia ($287), United Airlines ($321), and TAP AIR PORTUGAL ($350).

  • What are the most popular routes 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 (82%), Finnair (82%) or Iberia (82%) 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 $1,087, our data indicates the cheapest price to be $356. The most popular route (Philadelphia - Lisbon Humberto Delgado), is priced around $756.

  • 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, March is the cheapest month in which you can book a flight from Philadelphia to Portugal (average of $106). Flying from Philadelphia to Portugal in July is currently the most expensive (average of $750). 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.

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 July 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$489Average$789FlexibilityNo cancel feeOn-time69%
IberiaCheapest$546Average$868FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$549Average$934FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$622Average$1,016FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$626Average$993FlexibilityNo cancel feeOn-time70%
TAP AIR PORTUGALCheapest$631Average$813FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$665Average$1,085FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$695Average$1,179FlexibilityNo cancel feeOn-time71%

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.