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Maine

$304+ 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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — PWM
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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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 April 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$434
(Mytrip)

One-way from

$304
(oojo)
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 Portugal to Maine
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One-way flight from Portugal to Maine
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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 April 17, 2025.

This Mytrip deal was found by Cheapflights users on 4/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/89:10 pmOPO - BOS
1 stop25h 40mPLAY
Wed 5/147:15 pmBOS - OPO
1 stop19h 55mPLAY
Deal found 4/15$434
This Priceline deal was found by Cheapflights users on 4/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/238:25 amLIS - BOS
1 stop11h 35mMultiple Airlines
Sun 9/287:25 amBOS - LIS
1 stop10h 45mMultiple Airlines
Deal found 4/16$548
This Expedia deal was found by Cheapflights users on 4/16. 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.
Sat 5/1712:45 pmLIS - BOS
Nonstop7h 35mAir France
Sun 5/2510:20 pmBOS - LIS
1 stop14h 30mAir France
Deal found 4/16$549
This Cheapflightsfares deal was found by Cheapflights users on 4/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1712:20 pmOPO - BOS
1 stop12h 30mIberia
Sat 9/279:20 pmBOS - OPO
1 stop13h 35mIberia
Deal found 4/16$560
This Delta deal was found by Cheapflights users on 4/17. 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.
Sat 5/175:40 amLIS - BOS
1 stop12h 55mDelta
Mon 5/267:20 pmBOS - LIS
1 stop10h 55mDelta
Deal found 4/17$561
This Iberia deal was found by Cheapflights users on 4/16. 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.
Sat 5/178:15 amOPO - BOS
1 stop16h 35mMultiple Airlines
Mon 5/2610:00 pmBOS - OPO
1 stop16h 50mMultiple Airlines
Deal found 4/16$564
This KLM deal was found by Cheapflights users on 4/16. 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.
Sat 5/177:30 pmLIS - BOS
1 stop25h 55mKLM
Sun 5/258:15 pmBOS - LIS
1 stop13h 20mKLM
Deal found 4/16$566
This KLM deal was found by Cheapflights users on 4/17. 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.
Mon 5/195:30 pmOPO - BOS
1 stop27h 55mKLM
Mon 5/265:20 pmBOS - OPO
1 stop17h 10mKLM
Deal found 4/17$567
This Delta deal was found by Cheapflights users on 4/16. 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.
Sat 5/176:40 amOPO - BOS
1 stop14h 45mDelta
Mon 5/265:20 pmBOS - OPO
1 stop17h 10mDelta
Deal found 4/16$572
This Virgin Atlantic deal was found by Cheapflights users on 4/16. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1712:45 pmLIS - BOS
Nonstop7h 35mVirgin Atlantic
Sun 5/2511:25 pmBOS - LIS
Nonstop6h 20mVirgin Atlantic
Deal found 4/16$574
This Booking.com deal was found by Cheapflights users on 4/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/175:40 pmOPO - BOS
Nonstop7h 40mTAP AIR PORTUGAL
Mon 5/2611:15 pmBOS - OPO
Nonstop6h 40mTAP AIR PORTUGAL
Deal found 4/16$578
This Priceline deal was found by Cheapflights users on 4/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/227:15 amLIS - BOS
1 stop17h 55mBritish Airways
Wed 4/307:25 amBOS - LIS
1 stop10h 35mBritish Airways
Deal found 4/15$579

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 April 17, 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

Thu 5/8

9:10 pm-5:50 pm

1 stop25h 40m

Boston Logan Intl

Wed 5/14

7:15 pm-8:10 pm

1 stop19h 55m

$434

LisbonBoston

LIS - BOS

LISBOS

Lisbon Humberto Delgado

Tue 9/23

8:25 am-3:00 pm

1 stop11h 35m

Boston Logan Intl

Sun 9/28

7:25 am-11:10 pm

1 stop10h 45m

$548

LisbonBoston

LIS - BOS

LISBOS

Lisbon Humberto Delgado

Sat 5/17

12:45 pm-3:20 pm

Nonstop7h 35m

Boston Logan Intl

Sun 5/25

10:20 pm-5:50 pm

1 stop14h 30m

$549

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 9/17

12:20 pm-7:50 pm

1 stop12h 30m

Boston Logan Intl

Sat 9/27

9:20 pm-3:55 pm

1 stop13h 35m

$560

LisbonBoston

LIS - BOS

LISBOS

Lisbon Humberto Delgado

Sat 5/17

5:40 am-1:35 pm

1 stop12h 55m

Boston Logan Intl

Mon 5/26

7:20 pm-11:15 am

1 stop10h 55m

$561

PortoBoston

OPO - BOS

OPOBOS

Porto

Sat 5/17

8:15 am-7:50 pm

1 stop16h 35m

Boston Logan Intl

Mon 5/26

10:00 pm-7:50 pm

1 stop16h 50m

$564

LisbonBoston

LIS - BOS

LISBOS

Lisbon Humberto Delgado

Sat 5/17

7:30 pm-4:25 pm

1 stop25h 55m

Boston Logan Intl

Sun 5/25

8:15 pm-2:35 pm

1 stop13h 20m

$566

PortoBoston

OPO - BOS

OPOBOS

Porto

Mon 5/19

5:30 pm-4:25 pm

1 stop27h 55m

Boston Logan Intl

Mon 5/26

5:20 pm-3:30 pm

1 stop17h 10m

$567

PortoBoston

OPO - BOS

OPOBOS

Porto

Sat 5/17

6:40 am-4:25 pm

1 stop14h 45m

Boston Logan Intl

Mon 5/26

5:20 pm-3:30 pm

1 stop17h 10m

$572

LisbonBoston

LIS - BOS

LISBOS

Lisbon Humberto Delgado

Sat 5/17

12:45 pm-3:20 pm

Nonstop7h 35m

Boston Logan Intl

Sun 5/25

11:25 pm-10:45 am

Nonstop6h 20m

$574

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 60 results
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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

Rainfall in Maine by month

Plan your trip to Maine by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Maine ranges from 2.9 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. August is typically the driest time to visit Maine when rainfall is around 2.9 in.

Temperature in Maine by month

Plan your trip to Maine by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Maine, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Maine

Get insights into the airlines that provide service to Maine. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Maine. Reviews last updated April 17, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Finnair from Portugal to Maine to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,329 reviews
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,269 reviews
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.6
Good
775 reviews
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Azores Airlines
7.5
Good
65 reviews
Delta
8.0
Very good
7,917 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • 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 $341. PLAY flights start at $348 while deals on Vueling start at $356 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.

  • What is the cheapest month to book a flight from Portugal to Maine?

    Currently, January is the cheapest month in which you can book a flight from Portugal to Maine (average of $296). Flying from Portugal to Maine in May is currently the most expensive (average of $416). 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

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Alternative routes for Portugal to Maine

See prices for flight routes from nearby airports that may be better suited for you.
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