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$873+ Cheap flights from Portugal to Portland, ME (PWM)

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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — PWM
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Cheap flight deals from Portugal to Portland

Keep the following information in mind while searching for Portugal to Portland flight deals. Data was last updated November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$873
(United Airlines)
Provider with most accurate pricing for Lisbon Humberto Delgado-Portland flight deals.
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Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Portland flights.
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From Portugal to Portland
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Find flight deals from Portugal to Portland

Cheapest flights from Portugal to Portland
Explore the most affordable flight options available from Portugal to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This United Airlines deal was found by Cheapflights users on 11/3. 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.
Thu 12/1811:55 amLIS - PWM
1 stop31h 45mUnited Airlines
Thu 12/252:14 pmPWM - LIS
2 stops19h 51mUnited Airlines
Deal found 11/3$1,053

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portugal to Portland 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 November 3, 2025.
Use the filters below to find and compare flights from Portugal to Portland that are best for you.

Fly from

Portugal

Fly to

Portland

Route

Depart

Return

Price

LisbonPortland

LIS - PWM

LISPWM

Lisbon Humberto Delgado

Wed 2/18

6:10 am-11:20 pm

2 stops22h 10m

Portland

Sun 2/22

3:05 pm-8:10 am

1 stop12h 05m

$873

LisbonPortland

LIS - PWM

LISPWM

Lisbon Humberto Delgado

Wed 2/18

11:15 am-6:03 pm

1 stop11h 48m

Portland

Sun 2/22

7:00 am-9:05 am

1 stop21h 05m

$887

LisbonPortland

LIS - PWM

LISPWM

Lisbon Humberto Delgado

Thu 12/18

10:55 am-9:44 am

2 stops27h 49m

Portland

Thu 12/25

2:14 pm-3:05 pm

2 stops19h 51m

$1,053

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Best time to book a flight from Portugal to Portland

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

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

Currently, January is the cheapest month in which you can book a flight from Portugal to Portland, Maine (average of $297). Flying from Portugal to Portland, Maine in June is currently the most expensive (average of $531). 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.

Related info for your journey

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

    Portland (PWM), located 2.9 mi from the city center, is the airport you fly into when you book flights from Portugal to Portland.

  • How long is the flight from Portugal to Portland, Maine?

    Departing from Portugal to Portland, Maine will take you 11h 48m. The distance between Portugal and Portland, Maine is about 3123 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Portugal to Portland, Maine (average of $297). Flying from Portugal to Portland, Maine in June is currently the most expensive (average of $531). 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

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Brunswick
Auburn
Conway

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