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Maine

$272+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — PWM
Jul 20 — Jul 271
Mon 7/20
Mon 7/27
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 June 20, 2026.

This Delta deal was found by Cheapflights users on 6/19. 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.
Wed 12/95:00 am
OPO
-
BOS
1 stop13h 25m
Delta
Fri 1/221:10 pm
BOS
-
OPO
2 stops16h 25m
Delta
Deal found 6/19$506
This KLM deal was found by Cheapflights users on 6/16. 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.
Wed 12/911:15 am
OPO
-
BOS
1 stop31h 10m
KLM
Fri 1/226:30 pm
BOS
-
OPO
1 stop11h 05m
KLM
Deal found 6/16$509
This Air France deal was found by Cheapflights users on 6/16. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/235:55 am
OPO
-
BOS
1 stop14h 05m
Air France
Tue 10/135:10 pm
BOS
-
OPO
1 stop17h 15m
Air France
Deal found 6/16$518
This Delta deal was found by Cheapflights users on 6/19. 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.
Sun 10/49:25 am
OPO
-
BOS
2 stops18h 45m
Delta
Mon 10/121:10 pm
BOS
-
OPO
2 stops16h 30m
Delta
Deal found 6/19$525
This LEVEL deal was found by Cheapflights users on 6/16. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/95:10 pm
OPO
-
BOS
1 stop32h 55m
LEVEL
Wed 9/1610:55 pm
BOS
-
OPO
1 stop28h 05m
LEVEL
Deal found 6/16$539
This Air France deal was found by Cheapflights users on 6/18. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1912:45 pm
LIS
-
BOS
Nonstop7h 35m
Air France
Sat 9/2611:25 pm
BOS
-
LIS
Nonstop6h 20m
Air France
Deal found 6/18$540
This British Airways deal was found by Cheapflights users on 6/15. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1911:05 am
LIS
-
BOS
1 stop15h 45m
British Airways
Mon 12/289:30 pm
BOS
-
LIS
1 stop12h 25m
British Airways
Deal found 6/15$543
This LEVEL deal was found by Cheapflights users on 6/18. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/159:15 pm
LIS
-
BOS
1 stop29h 30m
LEVEL
Wed 7/2210:55 pm
BOS
-
LIS
1 stop14h 30m
LEVEL
Deal found 6/18$545
This Iberia deal was found by Cheapflights users on 6/16. 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.
Wed 9/910:00 pm
OPO
-
BOS
1 stop28h 05m
Iberia
Sun 9/1311:35 pm
BOS
-
OPO
1 stop27h 25m
Iberia
Deal found 6/16$549
This Iberia deal was found by Cheapflights users on 6/19. 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.
Thu 10/18:20 am
OPO
-
BOS
1 stop16h 30m
Iberia
Sun 10/49:20 pm
BOS
-
OPO
1 stop9h 25m
Iberia
Deal found 6/19$551
This LEVEL deal was found by Cheapflights users on 6/17. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/810:00 pm
OPO
-
BOS
1 stop28h 45m
LEVEL
Sun 7/1211:35 pm
BOS
-
OPO
1 stop16h 45m
LEVEL
Deal found 6/17$557
This Iberia deal was found by Cheapflights users on 6/16. 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.
Tue 9/810:00 pm
OPO
-
BOS
1 stop28h 05m
Iberia
Sun 9/1311:35 pm
BOS
-
OPO
1 stop27h 25m
Iberia
Deal found 6/16$561

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 June 20, 2026.

Round-trip from

$506
(Delta)

One-way from

$272
(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 June 20, 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

Sun 10/4

9:25 am-11:10 pm

2 stops18h 45m

Boston Logan Intl

Mon 10/12

1:10 pm-10:40 am

2 stops16h 30m

$525

LisbonBoston

LIS - BOS

LISBOS

Lisbon Humberto Delgado

Thu 11/12

10:40 am-10:46 pm

2 stops17h 06m

Boston Logan Intl

Mon 11/16

7:19 pm-2:55 pm

2 stops14h 36m

$543

LisbonBoston

LIS - BOS

LISBOS

Lisbon Humberto Delgado

Wed 7/15

9:15 pm-9:45 pm

1 stop29h 30m

Boston Logan Intl

Wed 7/22

10:55 pm-6:25 pm

1 stop14h 30m

$545

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 7/8

10:00 pm-9:45 pm

1 stop28h 45m

Boston Logan Intl

Sun 7/12

11:35 pm-9:20 pm

1 stop16h 45m

$557

PortoBoston

OPO - BOS

OPOBOS

Porto

Tue 7/14

10:00 pm-9:05 pm

1 stop28h 05m

Boston Logan Intl

Wed 8/5

10:55 pm-9:20 pm

1 stop17h 25m

$599

LisbonBoston

LIS - BOS

LISBOS

Lisbon Humberto Delgado

Tue 11/24

5:00 am-1:25 pm

1 stop13h 25m

Boston Logan Intl

Wed 12/30

9:35 pm-9:00 am

Nonstop6h 25m

$604

LisbonBoston

LIS - BOS

LISBOS

Lisbon Humberto Delgado

Thu 11/12

6:30 am-10:46 pm

2 stops21h 16m

Boston Logan Intl

Mon 11/16

7:15 pm-12:05 pm

1 stop11h 50m

$691

LisbonBoston

LIS - BOS

LISBOS

Lisbon Humberto Delgado

Fri 9/4

5:00 am-1:19 pm

1 stop13h 19m

Boston Logan Intl

Fri 9/11

4:40 pm-10:55 am

1 stop13h 15m

$693

LisbonBoston

LIS - BOS

LISBOS

Lisbon Humberto Delgado

Fri 9/4

11:05 am-10:50 pm

1 stop16h 45m

Boston Logan Intl

Fri 9/11

9:50 pm-6:00 pm

1 stop15h 10m

$700

LisbonBoston

LIS - BOS

LISBOS

Lisbon Humberto Delgado

Sat 10/3

7:25 am-3:40 pm

1 stop13h 15m

Boston Logan Intl

Sat 10/10

5:45 am-8:20 am

2 stops21h 35m

$754

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

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?

    Delta, British Airways, and LEVEL can get you from Portugal to Maine in just under 17h 06m. Your travel time can differ by up to 12h 24m. Airlines will cover a distance of 3182 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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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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