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$768+ Cheap flights from Portland, ME (PWM) to Portugal

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/30. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LIS
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
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Cheap flight deals from Portland to Portugal

Keep the following information in mind while searching for Portland to Portugal flight deals. Data was last updated February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$768
(American Airlines)

Popular in

June

Cheapest in

February

Average price

$581
Provider with most accurate pricing for Portland-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Portland-Lisbon Humberto Delgado flights.
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From Portland to Portugal
Search Deals
Highest demand for flights based on searches. 38% potential increase in price ($597 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($72 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Portland to Portugal

Cheapest flights from Portland to Portugal
Explore the most affordable flight options available from Portland to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2025.

This American Airlines deal was found by Cheapflights users on 2/21. 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 3/304:11 pmPWM - LIS
1 stop11h 54mAmerican Airlines
Thu 4/36:35 amLIS - PWM
2 stops21h 22mAmerican Airlines
Deal found 2/21$768
This United Airlines deal was found by Cheapflights users on 2/21. 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 4/76:00 amPWM - LIS
2 stops22h 20mUnited Airlines
Mon 4/145:05 amLIS - PWM
2 stops45h 30mUnited Airlines
Deal found 2/21$778
This Air Canada deal was found by Cheapflights users on 2/21. 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 4/76:15 amPWM - LIS
3 stops22h 05mMultiple Airlines
Mon 4/1411:25 amLIS - PWM
2 stops17h 02mMultiple Airlines
Deal found 2/21$821
This FlightHub deal was found by Cheapflights users on 2/21. 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.
Sat 5/177:15 amPWM - LIS
2 stops45h 40mTurkish Airlines
Sun 5/2510:55 amLIS - PWM
2 stops40h 02mTurkish Airlines
Deal found 2/21$942
This Mytrip deal was found by Cheapflights users on 2/21. 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.
Tue 3/187:00 amPWM - PDL
3 stops32h 30mMultiple Airlines
Mon 3/311:35 pmPDL - PWM
3 stops31h 52mMultiple Airlines
Deal found 2/21$1,075
This Air Canada deal was found by Cheapflights users on 2/21. 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.
Sat 5/173:43 pmPWM - LIS
3 stops22h 37mAir Canada
Sun 5/258:35 amLIS - PWM
3 stops19h 52mAir Canada
Deal found 2/21$1,716
This KLM deal was found by Cheapflights users on 2/21. 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.
Thu 3/63:04 pmPWM - LIS
1 stop11h 56mKLM
Thu 3/1310:00 amLIS - PWM
1 stop18h 15mKLM
Deal found 2/21$1,786

Find flights from Portland to Portugal within your budget

Customize your flight search to find flights from Portland 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 February 22, 2025.

Fly from

Portland

Fly to

Portugal

Route

Depart

Return

Price

PortlandLisbon

PWM - LIS

PWMLIS

Portland

Sun 3/30

4:11 pm-9:05 am

1 stop11h 54m

Lisbon Humberto Delgado

Thu 4/3

6:35 am-10:57 pm

2 stops21h 22m

$768

PortlandLisbon

PWM - LIS

PWMLIS

Portland

Mon 4/7

6:00 am-9:20 am

2 stops22h 20m

Lisbon Humberto Delgado

Mon 4/14

5:05 am-9:35 pm

2 stops45h 30m

$778

PortlandLisbon

PWM - LIS

PWMLIS

Portland

Mon 4/7

6:15 am-9:20 am

3 stops22h 05m

Lisbon Humberto Delgado

Mon 4/14

11:25 am-11:27 pm

2 stops17h 02m

$821

PortlandLisbon

PWM - LIS

PWMLIS

Portland

Sat 5/17

7:15 am-9:55 am

2 stops45h 40m

Lisbon Humberto Delgado

Sun 5/25

10:55 am-9:57 pm

2 stops40h 02m

$942

PortlandPonta Delgada

PWM - PDL

PWMPDL

Portland

Tue 3/18

7:00 am-6:30 pm

3 stops32h 30m

Ponta Delgada Nordela

Mon 3/31

1:35 pm-5:27 pm

3 stops31h 52m

$1,075

PortlandLisbon

PWM - LIS

PWMLIS

Portland

Sat 5/17

3:43 pm-7:20 pm

3 stops22h 37m

Lisbon Humberto Delgado

Sun 5/25

8:35 am-11:27 pm

3 stops19h 52m

$1,716

PortlandLisbon

PWM - LIS

PWMLIS

Portland

Thu 3/6

3:04 pm-8:00 am

1 stop11h 56m

Lisbon Humberto Delgado

Thu 3/13

10:00 am-12:15 am

1 stop18h 15m

$1,786

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Best time to book a flight from Portland to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Portland 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.

Travel insights for flights from Portland to Portugal

Get recent, data-driven insights about flights from Portland to Portugal including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Portland, Maine to Portugal?

Currently, January is the cheapest month in which you can book a flight from Portland, Maine to Portugal (average of $612). Flying from Portland, Maine to Portugal in June is currently the most expensive (average of $1,234). 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 PWM to PT?

Find hourly flight availability from Portland 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 February 22, 2025.

When flying from Portland, Maine to Portugal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Portugal by month

Plan your trip to Portugal by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.

Temperature in Portugal by month

Plan your trip to Portugal by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portugal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 February 22, 2025.
KLM
7.8
Good
1,331 reviews

Crew

8.4

Comfort

7.7

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.2

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,331 reviews
KLM
7.8
Good
1,331 reviews

Crew

8.4

Comfort

7.7

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.2

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

United Airlines
7.4
Good
8,759 reviews
KLM
7.8
Good
1,331 reviews

Crew

8.4

Comfort

7.7

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.2

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Turkish Airlines
7.3
Good
3,825 reviews
KLM
7.8
Good
1,331 reviews

Crew

8.4

Comfort

7.7

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.2

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

American Airlines
7.2
Good
10,000 reviews
KLM
7.8
Good
1,331 reviews

Crew

8.4

Comfort

7.7

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.2

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Air Canada
7.0
Good
8,756 reviews
KLM
7.8
Good
1,331 reviews

Crew

8.4

Comfort

7.7

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.2

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Related info for your journey

Find useful and relevant information for your journey from Portland 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 Portland to Portugal?

    For a flight from Portland to Portugal, you will be flying from Portland. Portland (PWM) is just 2.9 mi from the center of the city.

  • What are the most popular routes from Portland, Maine to Portugal?

    The most popular flight routes from Portland, Maine to Portugal are Portland - Lisbon Humberto Delgado, Portland - Porto and Portland - Ponta Delgada Nordela.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland 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 Portland, Maine to Portugal?

    Currently, January is the cheapest month in which you can book a flight from Portland, Maine to Portugal (average of $612). Flying from Portland, Maine to Portugal in June is currently the most expensive (average of $1,234). 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

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Top 2 airlines flying from Portland to Portugal

Discover the top 2 airlines that operate flights from Portland 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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$550Average$981FlexibilityNo cancel feeOn-time69%
DeltaCheapest$601Average$1,159FlexibilityNo cancel feeOn-timeN/A
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