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Maine

$289+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — PWM
Aug 30 — Sep 61
Sun 8/30
Sun 9/6
1 adult, Economy
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Cheap 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 July 31, 2026.

This Finnair deal was found by Cheapflights users on 7/27. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1612:25 pm
OPO
-
BOS
1 stop12h 35m
Multiple Airlines
Tue 1/56:45 pm
BOS
-
OPO
1 stop18h 00m
Multiple Airlines
Deal found 7/27$476
This Flybillet deal was found by Cheapflights users on 7/27. 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 Flybillet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:00 am
OPO
-
BOS
1 stop14h 40m
Lufthansa
Sun 9/138:05 pm
BOS
-
OPO
1 stop22h 20m
Lufthansa
Deal found 7/27$480
This Mytrip deal was found by Cheapflights users on 7/27. 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 9/166:45 pm
OPO
-
BOS
1 stop25h 25m
SWISS
Sun 9/279:40 pm
BOS
-
OPO
1 stop29h 15m
SWISS
Deal found 7/27$493
This Flighttix deal was found by Cheapflights users on 7/27. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:00 am
OPO
-
BOS
1 stop14h 40m
Multiple Airlines
Sun 9/137:40 pm
BOS
-
OPO
2 stops30h 20m
Multiple Airlines
Deal found 7/27$498
This Rumbo deal was found by Cheapflights users on 7/27. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/512:30 pm
LIS
-
BOS
1 stop12h 15m
Multiple Airlines
Thu 10/157:25 am
BOS
-
LIS
1 stop10h 50m
Multiple Airlines
Deal found 7/27$500
This Viajar deal was found by Cheapflights users on 7/27. 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 Viajar is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/215:40 pm
LIS
-
BOS
Nonstop7h 40m
TAP AIR PORTUGAL
Mon 9/286:05 pm
BOS
-
LIS
Nonstop6h 35m
TAP AIR PORTUGAL
Deal found 7/27$502
This Rumbo deal was found by Cheapflights users on 7/27. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/512:00 pm
LIS
-
BOS
Nonstop7h 45m
TAP AIR PORTUGAL
Thu 10/1510:20 pm
BOS
-
LIS
Nonstop6h 35m
TAP AIR PORTUGAL
Deal found 7/27$503
This American Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 12/168:20 am
OPO
-
BOS
1 stop16h 40m
American Airlines
Sun 1/310:50 am
BOS
-
OPO
2 stops19h 55m
American Airlines
Deal found 7/27$503
This Super.com deal was found by Cheapflights users on 7/28. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/111:40 am
LIS
-
BOS
Nonstop8h 00m
TAP AIR PORTUGAL
Tue 11/176:00 pm
BOS
-
LIS
Nonstop6h 35m
TAP AIR PORTUGAL
Deal found 7/28$504
This Lufthansa deal was found by Cheapflights users on 7/27. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/156:00 am
OPO
-
BOS
1 stop12h 45m
Multiple Airlines
Wed 1/69:50 pm
BOS
-
OPO
1 stop15h 40m
Multiple Airlines
Deal found 7/27$504
This oojo deal was found by Cheapflights users on 7/30. 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 10/265:00 pm
LIS
-
BOS
Nonstop7h 55m
TAP AIR PORTUGAL
Sun 11/110:10 pm
BOS
-
LIS
Nonstop6h 35m
TAP AIR PORTUGAL
Deal found 7/30$505
This British Airways deal was found by Cheapflights users on 7/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:10 am
LIS
-
BOS
1 stop14h 50m
British Airways
Mon 9/219:50 pm
BOS
-
LIS
1 stop20h 20m
British Airways
Deal found 7/27$506

Find flight deals from Portugal to Maine

Keep the following information in mind while searching for Portugal to Maine flight deals. Data was last updated July 31, 2026.

Round-trip from

$470
(Finnair)

One-way from

$289
(Kiwi.com)
From Portugal to Maine
Search Deals
One-way flight from Portugal to Maine
Search Deals

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 July 31, 2026.
Use the filters below to find and compare flights from Portugal to Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 8/26

6:00 am-3:40 pm

1 stop14h 40m

Boston Logan Intl

Sun 8/30

7:00 pm-9:45 am

1 stop9h 45m

$509

LisbonBoston

LIS - BOS

LISBOS

Lisbon Humberto Delgado

Tue 9/22

5:05 am-3:40 pm

1 stop15h 35m

Boston Logan Intl

Wed 9/30

12:36 pm-10:30 am

2 stops16h 54m

$511

LisbonBoston

LIS - BOS

LISBOS

Lisbon Humberto Delgado

Wed 12/23

5:00 am-1:45 pm

1 stop13h 45m

Boston Logan Intl

Wed 12/30

9:30 am-8:10 am

2 stops17h 40m

$511

LisbonBoston

LIS - BOS

LISBOS

Lisbon Humberto Delgado

Thu 10/1

6:35 am-8:05 pm

2 stops18h 30m

Boston Logan Intl

Sun 10/4

9:20 pm-11:50 am

1 stop9h 30m

$520

LisbonBoston

LIS - BOS

LISBOS

Lisbon Humberto Delgado

Tue 11/24

5:00 am-1:45 pm

1 stop13h 45m

Boston Logan Intl

Wed 12/30

3:33 pm-10:20 am

2 stops13h 47m

$521

PortoBoston

OPO - BOS

OPOBOS

Porto

Mon 9/21

5:00 am-1:19 pm

1 stop13h 19m

Boston Logan Intl

Sun 9/27

9:45 pm-3:30 pm

1 stop12h 45m

$524

PortoBoston

OPO - BOS

OPOBOS

Porto

Mon 9/21

8:40 pm-4:10 pm

1 stop24h 30m

Boston Logan Intl

Sun 9/27

9:55 pm-8:35 pm

1 stop17h 40m

$525

LisbonBoston

LIS - BOS

LISBOS

Lisbon Humberto Delgado

Sat 11/21

5:00 am-2:13 pm

1 stop14h 13m

Boston Logan Intl

Sat 11/28

4:55 pm-11:25 am

1 stop13h 30m

$532

Ponta DelgadaBoston

PDL - BOS

PDLBOS

Ponta Delgada Nordela

Mon 8/10

11:00 am-9:53 pm

1 stop14h 53m

Boston Logan Intl

Sun 8/16

12:41 pm-8:40 am

1 stop15h 59m

$534

LisbonBoston

LIS - BOS

LISBOS

Lisbon Humberto Delgado

Thu 12/3

5:00 am-2:20 pm

1 stop14h 20m

Boston Logan Intl

Wed 12/9

9:35 pm-9:00 am

Nonstop6h 25m

$535

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 60 resultsSorted by cheapest first
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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

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?

    United Airlines, Iberia, and Delta can get you from Portugal to Maine in just under 13h 19m. Your travel time can differ by up to 5h 11m. Airlines will cover a distance of 3134 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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

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