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Portugal

$241+ Cheap flights from Maine to Portugal

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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LIS
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Maine to Portugal

Keep the following information in mind while searching for Maine to Portugal flight deals. Data was last updated August 14, 2025.

Round-trip from

$430
(Iberia)

One-way from

$241
(Cheapflightsfares)

Popular in

May

Cheapest in

February

Average price

$931
From Maine to Portugal
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One-way flight from Maine to Portugal
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Highest demand for flights based on searches. 31% potential increase in price ($390 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($73 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Maine to Portugal

Cheapest flights from Maine to Portugal
Explore the most affordable flight options available from Maine to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Iberia deal was found by Cheapflights users on 8/14. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/259:20 pmBOS - OPO
1 stop9h 20mIberia
Thu 9/188:15 amOPO - BOS
2 stops15h 34mIberia
Deal found 8/14$430
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/235:05 pmBOS - OPO
1 stop13h 25mSWISS
Tue 9/3011:50 amOPO - BOS
2 stops32h 35mSWISS
Deal found 8/14$431
This Gotogate deal was found by Cheapflights users on 8/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2610:45 pmBOS - OPO
1 stop16h 40mTAP AIR PORTUGAL
Mon 10/206:05 pmOPO - BOS
Nonstop7h 40mTAP AIR PORTUGAL
Deal found 8/14$432
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/265:05 pmBOS - OPO
1 stop13h 25mSWISS
Tue 9/98:40 amOPO - BOS
1 stop11h 45mSWISS
Deal found 8/14$433
This Iberia deal was found by Cheapflights users on 8/12. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/259:04 amBOS - OPO
2 stops25h 51mIberia
Thu 9/258:15 amOPO - BOS
2 stops15h 34mIberia
Deal found 8/12$434
This oojo deal was found by Cheapflights users on 8/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/811:15 pmBOS - OPO
Nonstop6h 40mTAP AIR PORTUGAL
Mon 10/139:15 pmOPO - BOS
1 stop22h 05mTAP AIR PORTUGAL
Deal found 8/14$435
This Ovago deal was found by Cheapflights users on 8/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/59:20 pmBOS - OPO
1 stop9h 20mBritish Airways
Thu 10/168:15 amOPO - BOS
2 stops19h 04mBritish Airways
Deal found 8/13$437
This KAYAK deal was found by Cheapflights users on 8/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/279:50 pmBOS - OPO
1 stop32h 20mSWISS
Mon 12/157:20 pmOPO - BOS
1 stop30h 00mSWISS
Deal found 8/13$438
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Tue 8/264:23 pmBOS - OPO
1 stop10h 22mUnited Airlines
Thu 9/1112:10 pmOPO - BOS
1 stop14h 45mUnited Airlines
Deal found 8/14$439
This Iberia deal was found by Cheapflights users on 8/14. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/249:20 pmBOS - OPO
1 stop17h 35mIberia
Wed 9/178:35 pmOPO - BOS
2 stops27h 14mIberia
Deal found 8/14$440
This SWISS deal was found by Cheapflights users on 8/14. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/149:40 pmBOS - OPO
2 stops16h 25mSWISS
Mon 10/207:20 pmOPO - BOS
1 stop25h 05mSWISS
Deal found 8/14$441
This FlightHub deal was found by Cheapflights users on 8/14. 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.
Fri 11/285:35 pmBOS - FNC
1 stop16h 45mScandinavian Airlines
Sat 12/134:10 pmFNC - BOS
1 stop28h 40mScandinavian Airlines
Deal found 8/14$457

Cheapflights Fare Finder

 
Customize your flight search to find flights from Maine 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 August 14, 2025.
Use the filters below to find and compare flights from Maine to Portugal that are best for you.

Fly from

Maine

Fly to

Portugal

Route

Depart

Return

Price

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Mon 8/25

9:20 pm-11:40 am

1 stop9h 20m

Porto

Thu 9/18

8:15 am-6:49 pm

2 stops15h 34m

$430

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 8/24

4:30 pm-7:35 am

1 stop10h 05m

Porto

Tue 9/9

8:35 pm-6:49 pm

2 stops27h 14m

$430

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Mon 8/25

9:20 pm-11:40 am

1 stop9h 20m

Porto

Thu 9/11

12:20 pm-10:50 pm

2 stops15h 30m

$430

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Mon 8/25

9:20 pm-3:55 pm

1 stop13h 35m

Porto

Tue 9/9

8:35 pm-6:49 pm

2 stops27h 14m

$430

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 8/24

9:20 pm-11:40 am

1 stop9h 20m

Porto

Wed 9/24

8:35 pm-7:35 pm

1 stop28h 00m

$430

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 8/24

9:20 pm-11:40 am

1 stop9h 20m

Porto

Wed 9/17

4:35 pm-3:00 pm

1 stop27h 25m

$430

BostonFunchal

BOS - FNC

BOSFNC

Boston Logan Intl

Fri 11/28

5:35 pm-3:20 pm

1 stop16h 45m

Funchal Madeira

Sat 12/13

2:35 pm-3:50 pm

2 stops30h 15m

$474

BostonFaro

BOS - FAO

BOSFAO

Boston Logan Intl

Sun 9/14

9:25 pm-8:35 pm

1 stop18h 10m

Faro

Sun 9/21

7:00 am-6:45 pm

1 stop16h 45m

$481

BostonFunchal

BOS - FNC

BOSFNC

Boston Logan Intl

Thu 11/27

5:35 pm-1:45 pm

2 stops39h 10m

Funchal Madeira

Sat 12/13

4:10 pm-3:50 pm

1 stop28h 40m

$486

BostonFaro

BOS - FAO

BOSFAO

Boston Logan Intl

Mon 10/20

5:40 pm-9:55 am

2 stops35h 15m

Faro

Sat 10/25

6:45 pm-4:50 pm

1 stop27h 05m

$494

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 60 results
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Best time to book a flight from Maine to Portugal

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

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

Find hourly flight availability from Maine 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 August 14, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Maine to Portugal as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Maine to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as $241. Users have also found prices from $252 and $254 on Azores Airlines and United Airlines, respectively.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Maine to Portugal (average of $612). Flying from Maine to Portugal in June is currently the most expensive (average of $1,128). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Maine to Portugal

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 Portugal

Discover the top airline that operate flights from Maine 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$578Average$772FlexibilityNo cancel feeOn-time69%

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