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Lisbon

$307+ Cheap flights from Maine to Lisbon (LIS)

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 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LIS
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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Find flight deals from Maine to Lisbon

Cheapest flights from Maine to Lisbon
Explore the most affordable flight options available from Maine to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.

This CheapOair deal was found by Cheapflights users on 11/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/125:10 pmBOS - LIS
1 stop12h 00mAer Lingus
Sat 1/1010:50 amLIS - BOS
1 stop13h 09mAer Lingus
Deal found 11/5$486
This Delta deal was found by Cheapflights users on 11/5. 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.
Fri 12/58:35 pmBOS - LIS
Nonstop6h 25mDelta
Sun 12/1411:15 amLIS - BOS
Nonstop7h 45mDelta
Deal found 11/5$490
This Delta deal was found by Cheapflights users on 11/5. 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.
Thu 12/48:35 pmBOS - LIS
Nonstop6h 25mDelta
Wed 12/2411:15 amLIS - BOS
Nonstop7h 45mDelta
Deal found 11/5$491
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Fri 12/510:16 amBOS - LIS
1 stop17h 34mAmerican Airlines
Fri 12/1212:30 pmLIS - BOS
1 stop12h 20mAmerican Airlines
Deal found 11/5$494
This Delta deal was found by Cheapflights users on 11/5. 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.
Thu 12/410:30 amBOS - LIS
1 stop17h 25mDelta
Sat 12/2011:15 amLIS - BOS
Nonstop7h 45mDelta
Deal found 11/5$495
This KLM deal was found by Cheapflights users on 11/6. 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 12/48:35 pmBOS - LIS
Nonstop6h 25mMultiple Airlines
Thu 12/1110:00 amLIS - BOS
1 stop13h 59mMultiple Airlines
Deal found 11/6$497
This Mytrip deal was found by Cheapflights users on 11/6. 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.
Wed 12/37:50 pmBOS - LIS
2 stops18h 45mMultiple Airlines
Sat 12/139:30 pmLIS - BOS
2 stops25h 20mMultiple Airlines
Deal found 11/6$498
This Mytrip deal was found by Cheapflights users on 11/5. 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.
Fri 12/59:20 pmBOS - LIS
1 stop16h 55mMultiple Airlines
Fri 12/126:00 amLIS - BOS
2 stops21h 54mMultiple Airlines
Deal found 11/5$499
This CheapOair deal was found by Cheapflights users on 11/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/175:10 pmBOS - LIS
1 stop12h 00mAer Lingus
Thu 11/2010:50 amLIS - BOS
1 stop13h 05mAer Lingus
Deal found 11/5$500
This KLM deal was found by Cheapflights users on 11/6. 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 12/48:35 pmBOS - LIS
Nonstop6h 25mMultiple Airlines
Sat 12/1310:00 amLIS - BOS
1 stop13h 59mMultiple Airlines
Deal found 11/6$501
This Expedia deal was found by Cheapflights users on 11/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:28 pmBOS - LIS
1 stop9h 37mIberia
Wed 12/106:30 amLIS - BOS
2 stops14h 17mIberia
Deal found 11/5$504
This United Airlines deal was found by Cheapflights users on 11/5. 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 12/310:02 amPWM - LIS
1 stop19h 13mUnited Airlines
Wed 12/105:00 amLIS - PWM
2 stops18h 43mUnited Airlines
Deal found 11/5$535

Cheap flight deals from Maine to Lisbon

Keep the following information in mind while searching for Maine to Lisbon flight deals. Data was last updated November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$486
(CheapOair)

One-way from

$307
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$728
Provider with most accurate pricing for Portland-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Lisbon Humberto Delgado flights.
Search Deals
From Maine to Lisbon Humberto Delgado
Search Deals
One-way flight from Maine to Lisbon Humberto Delgado
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($345 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($67 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Maine to Lisbon 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 6, 2025.
Use the filters below to find and compare flights from Maine to Lisbon that are best for you.

Fly from

Maine

Fly to

Lisbon

Route

Depart

Return

Price

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Fri 2/20

5:10 pm-7:55 am

1 stop9h 45m

Lisbon Humberto Delgado

Sat 2/28

6:30 am-7:50 pm

1 stop18h 20m

$494

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Fri 12/5

8:00 am-9:00 am

1 stop20h 00m

Lisbon Humberto Delgado

Fri 12/19

10:55 am-1:40 pm

Nonstop7h 45m

$495

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Fri 2/20

8:40 pm-8:00 am

Nonstop6h 20m

Lisbon Humberto Delgado

Sat 2/28

5:30 am-4:20 pm

1 stop15h 50m

$502

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Mon 1/12

1:00 pm-8:00 am

1 stop14h 00m

Lisbon Humberto Delgado

Wed 1/28

10:00 am-6:30 pm

1 stop13h 30m

$505

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Mon 1/12

1:00 pm-8:00 am

1 stop14h 00m

Lisbon Humberto Delgado

Tue 2/3

10:00 am-6:30 pm

1 stop13h 30m

$505

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Tue 1/13

5:05 pm-8:00 am

1 stop9h 55m

Lisbon Humberto Delgado

Sat 1/31

10:00 am-6:30 pm

1 stop13h 30m

$505

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Tue 1/13

1:00 pm-8:00 am

1 stop14h 00m

Lisbon Humberto Delgado

Tue 1/27

10:00 am-6:30 pm

1 stop13h 30m

$505

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Sat 2/14

3:43 pm-9:05 am

1 stop12h 22m

Lisbon Humberto Delgado

Sun 2/22

11:05 am-5:05 pm

1 stop11h 00m

$506

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Thu 12/11

6:28 pm-9:05 am

1 stop9h 37m

Lisbon Humberto Delgado

Sun 12/14

11:05 am-6:33 pm

1 stop12h 28m

$506

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Tue 1/13

1:00 pm-8:00 am

1 stop14h 00m

Lisbon Humberto Delgado

Wed 1/28

10:00 am-10:22 pm

1 stop17h 22m

$506

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 32 results
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Best time to book a flight from Maine to Lisbon

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

What is the cheapest time of day to fly from ME to LIS?

Find hourly flight availability from Maine to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 6, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 36% on flights from Maine to Lisbon by exploring options for tickets in the evening.

How much does it cost to fly round-trip from Maine to Lisbon?

Related info for your journey

Find useful and relevant information for your journey from Maine to Lisbon. 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 Lisbon from Maine?

    If you book a flight to Lisbon from Maine, you will be flying to Humberto Delgado, which is the city’s only airport. Lisbon Humberto Delgado (LIS) is located 4.2 mi from the center of Lisbon.

  • How long is the flight from Maine to Lisbon?

    Departing from Maine to Lisbon will take you 19h 13m. There are 3123 mi between Maine and Lisbon. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Maine to Lisbon one-way?

    One-way options have recently been found by users for as low as $319 on Aer Lingus. Other airlines that offer cheap prices include TAP AIR PORTUGAL from $320 and United Airlines from $461 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Maine to Lisbon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Sintra
Fátima
Oeiras
Ericeira
Nazaré
Costa da Caparica
Torres Vedras
Beja
Sesimbra
Colares

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Alternative routes for Maine to Lisbon

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Maine to Lisbon

Discover the top airline that operate flights from Maine to Lisbon. 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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$578Average$778FlexibilityNo cancel feeOn-time69%

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