HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Maine

$299+ Cheap flights from Portugal to Maine

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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — PWM
Nov 21 — Nov 281
Fri 11/21
Fri 11/28
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portugal to Maine 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 Portugal to Maine

Keep the following information in mind while searching for Portugal to Maine flight deals. Data was last updated October 22, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$456
(Kiwi.com)

One-way from

$299
(SmartFares)
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 Portugal to Maine
Search Deals
One-way flight from Portugal to Maine
Search Deals

Find flight deals from Portugal to Maine

Cheapest flights from Portugal to Maine
Explore the most affordable flight options available from Portugal to Maine. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 22, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
Wed 11/199:55 pmOPO - BOS
1 stop28h 00mMultiple Airlines
Sat 12/610:40 pmBOS - OPO
1 stop28h 30mMultiple Airlines
Deal found 10/21$460
This lol.travel deal was found by Cheapflights users on 10/20. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/62:00 pmOPO - BOS
1 stop11h 10mTAP AIR PORTUGAL
Sat 11/1510:25 pmBOS - OPO
1 stop14h 40mTAP AIR PORTUGAL
Deal found 10/20$486
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
Wed 11/199:55 pmOPO - BOS
1 stop28h 00mMultiple Airlines
Thu 12/410:40 pmBOS - OPO
2 stops14h 20mMultiple Airlines
Deal found 10/21$494
This Kiwi.com deal was found by Cheapflights users on 10/20. 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.
Thu 12/117:25 amOPO - BOS
1 stop18h 30mMultiple Airlines
Sun 12/1410:40 pmBOS - OPO
1 stop19h 05mMultiple Airlines
Deal found 10/20$496
This oojo deal was found by Cheapflights users on 10/21. 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.
Thu 11/612:05 pmOPO - BOS
1 stop13h 05mTAP AIR PORTUGAL
Sat 12/610:25 pmBOS - OPO
1 stop11h 35mTAP AIR PORTUGAL
Deal found 10/21$501
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
Thu 11/208:45 amOPO - BOS
1 stop17h 10mMultiple Airlines
Thu 12/410:40 pmBOS - OPO
2 stops14h 20mMultiple Airlines
Deal found 10/21$506
This lol.travel deal was found by Cheapflights users on 10/21. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/202:00 pmOPO - BOS
1 stop11h 10mTAP AIR PORTUGAL
Fri 11/2810:45 pmBOS - OPO
1 stop13h 15mTAP AIR PORTUGAL
Deal found 10/21$513
This FlightHub deal was found by Cheapflights users on 10/21. 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.
Thu 11/202:00 pmOPO - BOS
1 stop11h 10mTAP AIR PORTUGAL
Sat 12/610:25 pmBOS - OPO
1 stop11h 35mTAP AIR PORTUGAL
Deal found 10/21$518
This Kiwi.com deal was found by Cheapflights users on 10/20. 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.
Mon 12/86:15 amOPO - BOS
1 stop19h 40mMultiple Airlines
Mon 12/1510:40 pmBOS - OPO
1 stop19h 20mMultiple Airlines
Deal found 10/20$528
This oojo deal was found by Cheapflights users on 10/21. 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.
Wed 11/198:00 pmOPO - BOS
1 stop23h 35mTAP AIR PORTUGAL
Fri 12/56:05 pmBOS - OPO
1 stop13h 05mTAP AIR PORTUGAL
Deal found 10/21$530
This lol.travel deal was found by Cheapflights users on 10/20. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/69:10 amFNC - BOS
1 stop16h 00mTAP AIR PORTUGAL
Tue 11/116:05 pmBOS - FNC
1 stop11h 05mTAP AIR PORTUGAL
Deal found 10/20$540
This Expedia deal was found by Cheapflights users on 10/21. 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 11/2010:50 amLIS - BOS
1 stop13h 05mAer Lingus
Fri 11/285:10 pmBOS - LIS
1 stop12h 00mAer Lingus
Deal found 10/21$541

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portugal to Maine 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 22, 2025.
Use the filters below to find and compare flights from Portugal to Maine that are best for you.

Fly from

Portugal

Fly to

Maine

Route

Depart

Return

Price

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 11/19

9:55 pm-8:55 pm

1 stop28h 00m

Boston Logan Intl

Sat 12/6

10:40 pm-8:10 am

1 stop28h 30m

$460

PortoBoston

OPO - BOS

OPOBOS

Porto

Sat 11/22

8:55 am-2:35 pm

1 stop10h 40m

Boston Logan Intl

Sat 12/6

6:05 pm-9:50 am

1 stop10h 45m

$501

PortoBoston

OPO - BOS

OPOBOS

Porto

Thu 11/20

8:45 am-8:55 pm

1 stop17h 10m

Boston Logan Intl

Sat 12/6

10:40 pm-6:05 pm

2 stops14h 25m

$506

PortoBoston

OPO - BOS

OPOBOS

Porto

Thu 11/6

12:05 pm-8:10 pm

1 stop13h 05m

Boston Logan Intl

Sat 11/15

10:25 pm-6:05 pm

1 stop14h 40m

$511

PortoBoston

OPO - BOS

OPOBOS

Porto

Thu 11/20

2:00 pm-8:10 pm

1 stop11h 10m

Boston Logan Intl

Sat 12/6

10:25 pm-3:00 pm

1 stop11h 35m

$518

FunchalBoston

FNC - BOS

FNCBOS

Funchal Madeira

Thu 11/6

9:10 am-8:10 pm

1 stop16h 00m

Boston Logan Intl

Tue 11/11

6:05 pm-10:10 am

1 stop11h 05m

$540

LisbonBoston

LIS - BOS

LISBOS

Lisbon Humberto Delgado

Thu 11/20

1:55 pm-8:55 pm

1 stop12h 00m

Boston Logan Intl

Fri 11/28

7:15 pm-12:05 pm

1 stop11h 50m

$551

PortoBoston

OPO - BOS

OPOBOS

Porto

Sun 12/7

9:55 am-8:10 pm

1 stop15h 15m

Boston Logan Intl

Wed 12/10

6:05 pm-10:15 am

1 stop11h 10m

$558

Ponta DelgadaBoston

PDL - BOS

PDLBOS

Ponta Delgada Nordela

Fri 12/5

9:30 am-8:10 pm

1 stop14h 40m

Boston Logan Intl

Fri 12/12

10:45 pm-6:35 pm

1 stop15h 50m

$560

Ponta DelgadaBoston

PDL - BOS

PDLBOS

Ponta Delgada Nordela

Thu 11/6

5:45 pm-7:55 pm

Nonstop6h 10m

Boston Logan Intl

Wed 11/12

6:05 pm-11:45 pm

1 stop25h 40m

$561

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Portugal to Maine

Have a flexible travel schedule? Discover the best time to fly to Maine 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 Maine
No data available for this route at this time. Please check back soon.

Related info for your journey

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

    TAP AIR PORTUGAL, Azores Airlines, and Delta can get you from Portugal to Maine in just under 6h 10m. Your travel time can differ by up to 7h 10m. Airlines will cover a distance of 2387 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    To fly one-way, consider booking your trip with Azores Airlines, which is currently one of the cheapest options available, starting at $313. TAP AIR PORTUGAL flights start at $376 while deals on Iberia start at $380 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portugal to Maine 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

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 Portugal to Maine

See prices for flight routes from nearby airports that may be better suited for you.
Charles de Gaulle to John F Kennedy Intl flights
Charles de Gaulle to Newark flights
Orly to Newark flights
Heathrow to John F Kennedy Intl flights
Frankfurt to Newark flights
Heathrow to Newark flights
Orly to John F Kennedy Intl flights
Charles de Gaulle to LaGuardia flights
Frankfurt to John F Kennedy Intl flights
Charles de Gaulle to Miami flights
Frankfurt to LaGuardia flights
Heathrow to LaGuardia flights
Gatwick to John F Kennedy Intl flights
Gatwick to Newark flights
London City to John F Kennedy Intl flights
Charles de Gaulle to Los Angeles flights
Malpensa to Newark flights
Madrid to Newark flights
Barcelona-El Prat to John F Kennedy Intl flights
Vienna to Newark flights
London City to Newark flights
Stansted to John F Kennedy Intl flights
Beauvais-Tille to Newark flights
Leonardo da Vinci/Fiumicino to Newark flights
Berlin to Newark flights
Frankfurt to Miami flights
Munich to John F Kennedy Intl flights
Luton to John F Kennedy Intl flights
Munich to Newark flights
Malpensa to John F Kennedy Intl flights
Frederic Chopin to John F Kennedy Intl flights
Barcelona-El Prat to Newark flights
Stansted to Newark flights
Madrid to Miami flights
Bruxelles-National to Newark flights
Madrid to John F Kennedy Intl flights
Vienna to John F Kennedy Intl flights
Amsterdam to John F Kennedy Intl flights
Amsterdam to Newark flights
Luton to Newark flights
Frankfurt to Los Angeles flights
Vicenza to Newark flights
Bruxelles-National to John F Kennedy Intl flights
Gatwick to LaGuardia flights
Leonardo da Vinci/Fiumicino to John F Kennedy Intl flights
Zurich to John F Kennedy Intl flights
Heathrow to Miami flights
Frankfurt to San Francisco flights
Zurich to Newark 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.