HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portland

$457+ Cheap flights from Lisbon (LIS) to Portland, ME (PWM)

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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — PWM
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Lisbon to Portland 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 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 December 15, 2025.

This United Airlines deal was found by Cheapflights users on 12/15. 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 12/3110:15 amLIS - PWM
1 stop18h 07mUnited Airlines
Sun 1/46:00 amPWM - LIS
1 stop21h 10mUnited Airlines
Deal found 12/15$1,154
This Air Canada deal was found by Cheapflights users on 12/15. 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.
Wed 12/319:50 amLIS - PWM
3 stops32h 49mAir Canada
Sun 1/42:55 pmPWM - LIS
3 stops20h 30mAir Canada
Deal found 12/15$1,928
This Air Canada deal was found by Cheapflights users on 12/15. 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.
Wed 12/319:50 amLIS - PWM
3 stops32h 49mMultiple Airlines
Sun 1/410:19 amPWM - LIS
2 stops18h 01mMultiple Airlines
Deal found 12/15$2,141

Find 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 December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$897
(United Airlines)

One-way from

$457
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$677
Provider with most accurate pricing for Lisbon Humberto Delgado-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Portland flights.
Search Deals
From Lisbon Humberto Delgado to Portland
Search Deals
One-way flight from Lisbon Humberto Delgado to Portland
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($114 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 15, 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

Thu 1/22

5:00 am-6:50 pm

2 stops18h 50m

Portland

Mon 1/26

3:12 pm-8:10 am

1 stop11h 58m

$897

LisbonPortland

LIS - PWM

LISPWM

Lisbon Humberto Delgado

Thu 1/22

10:55 am-10:54 pm

1 stop16h 59m

Portland

Mon 1/26

3:58 pm-9:05 am

1 stop12h 07m

$925

LisbonPortland

LIS - PWM

LISPWM

Lisbon Humberto Delgado

Wed 12/31

10:15 am-11:22 pm

1 stop18h 07m

Portland

Sun 1/4

6:00 am-8:10 am

1 stop21h 10m

$1,154

LisbonPortland

LIS - PWM

LISPWM

Lisbon Humberto Delgado

Wed 12/31

9:50 am-1:39 pm

3 stops32h 49m

Portland

Sun 1/4

2:55 pm-4:25 pm

3 stops20h 30m

$1,928

LisbonPortland

LIS - PWM

LISPWM

Lisbon Humberto Delgado

Mon 5/4

10:10 pm-10:27 am

3 stops41h 17m

$457

LisbonPortland

LIS - PWM

LISPWM

Lisbon Humberto Delgado

Mon 5/4

11:05 am-10:27 pm

1 stop16h 22m

$579

LisbonPortland

LIS - PWM

LISPWM

Lisbon Humberto Delgado

Mon 12/22

9:25 am-10:36 am

3 stops54h 11m

$726

LisbonPortland

LIS - PWM

LISPWM

Lisbon Humberto Delgado

Thu 12/25

7:00 am-9:06 am

2 stops31h 06m

$823

LisbonPortland

LIS - PWM

LISPWM

Lisbon Humberto Delgado

Tue 12/23

10:45 am-10:36 am

2 stops28h 51m

$957

LisbonPortland

LIS - PWM

LISPWM

Lisbon Humberto Delgado

Sun 12/21

8:35 am-9:06 am

2 stops29h 31m

$964

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Showing 1-10 of 12 results
1
2
  • 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 $316). 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?

    United Airlines can get you from Lisbon to Portland, Maine in just under 18h 50m. 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 $316). 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

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 Lisbon to Portland

See prices for flight routes from nearby airports that may be better suited for you.
Lisbon to Boston flights
Porto to Boston flights
Ponta Delgada to Boston flights
Funchal to Boston flights

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.