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$872+ Cheap flights from Lisbon (LIS) 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — PWM
Nov 30 — Dec 71
Sun 11/30
Sun 12/7
1 adult, Economy
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Cheap flight deals from Lisbon to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Lisbon (LIS) to Portland (PWM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 31, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$880
(American 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 Lisbon Humberto Delgado to Portland
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Find flight deals from Lisbon to Portland

Cheapest flights from Lisbon to Portland
Explore the most affordable flight options available from Lisbon to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2025.

This United Airlines deal was found by Cheapflights users on 10/30. 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 12/145:00 amLIS - PWM
2 stops21h 17mUnited Airlines
Sun 12/214:10 pmPWM - LIS
2 stops37h 05mUnited Airlines
Deal found 10/30$1,357

Cheapflights Fare Finder

 
Customize your flight search to find flights from Lisbon 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 October 31, 2025.
Use the filters below to find and compare flights from Lisbon to Portland that are best for you.

Fly from

Lisbon

Fly to

Portland

Route

Depart

Return

Price

LisbonPortland

LIS - PWM

LISPWM

Lisbon Humberto Delgado

Wed 2/18

11:15 am-11:49 pm

2 stops17h 34m

Portland

Sun 2/22

7:00 am-5:45 pm

2 stops29h 45m

$880

LisbonPortland

LIS - PWM

LISPWM

Lisbon Humberto Delgado

Sun 12/14

5:00 am-9:17 pm

2 stops21h 17m

Portland

Sun 12/21

4:10 pm-10:15 am

2 stops37h 05m

$1,357

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

  • Most accurate provider: When it comes to deals on Lisbon-Portland, Maine flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Lisbon-Portland, Maine flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Lisbon-Portland, Maine flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Lisbon-Portland, Maine flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Lisbon-Portland, Maine flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Lisbon to Portland

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

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

Currently, January is the cheapest month in which you can book a flight from Lisbon to Portland, Maine (average of $294). Flying from Lisbon to Portland, Maine in October is currently the most expensive (average of $535). 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 Lisbon to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    American Airlines can get you from Lisbon to Portland, Maine in just under 17h 34m. Your travel time can differ by up to . There are 3123 mi between Lisbon and Portland, Maine.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Lisbon to Portland, Maine (average of $294). Flying from Lisbon to Portland, Maine in October is currently the most expensive (average of $535). 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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