How long is the flight from Maine to Portugal?

For as low as $383, TAP AIR PORTUGAL can have you in Portugal from Maine in 10h 50m. Maine and Portugal are separated by a distance of 3134 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.

If weather is an important factor for your trip to Portugal, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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.

$218+ Flights from Maine to Portugal

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Cheap 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 December 22, 2025.

Sun 12/289:25 pmBOS - PDL

Nonstop4h 55mMultiple Airlines

Tue 1/202:15 pmPDL - BOS

1 stop9h 40mMultiple Airlines

Deal found 12/21

$578

Sun 12/289:25 pmBOS - PDL

Nonstop4h 55mAzores Airlines

Tue 1/208:30 amPDL - BOS

2 stops15h 25mAzores Airlines

Deal found 12/21

$635

Sun 12/289:25 pmBOS - LIS

1 stop20h 50mMultiple Airlines

Mon 1/125:40 pmLIS - BOS

2 stops31h 15mMultiple Airlines

Deal found 12/21

$652

Tue 12/305:35 pmBOS - LIS

1 stop17h 30mScandinavian Airlines

Wed 1/144:55 pmLIS - BOS

1 stop27h 55mScandinavian Airlines

Deal found 12/21

$655

Sun 12/289:25 pmBOS - LIS

1 stop20h 50mAzores Airlines

Mon 1/124:15 pmLIS - BOS

1 stop32h 40mAzores Airlines

Deal found 12/21

$679

Sun 12/289:25 pmBOS - LIS

1 stop20h 50mMultiple Airlines

Sun 1/114:55 pmLIS - BOS

2 stops32h 00mMultiple Airlines

Deal found 12/21

$680

Fri 12/269:25 pmBOS - PDL

Nonstop4h 55mAzores Airlines

Mon 12/295:50 pmPDL - BOS

Nonstop6h 10mAzores Airlines

Deal found 12/21

$682

Sun 12/289:25 pmBOS - LIS

1 stop20h 50mAzores Airlines

Sun 1/116:00 amLIS - BOS

1 stop19h 00mAzores Airlines

Deal found 12/21

$695

Mon 12/293:40 pmBOS - LIS

2 stops21h 35mMultiple Airlines

Mon 1/125:40 pmLIS - BOS

3 stops31h 02mMultiple Airlines

Deal found 12/21

$750

Sat 12/206:23 pmBOS - OPO

2 stops36h 17mUnited Airlines

Sat 12/2712:30 pmOPO - BOS

1 stop29h 55mUnited Airlines

Deal found 12/19

$752

Sun 12/289:25 pmBOS - LIS

1 stop9h 25mMultiple Airlines

Tue 1/138:00 amLIS - BOS

2 stops16h 55mMultiple Airlines

Deal found 12/21

$758

Mon 12/297:50 pmBOS - LIS

2 stops31h 40mMultiple Airlines

Sun 1/119:20 pmLIS - BOS

1 stop25h 30mMultiple Airlines

Deal found 12/21

$777

Best flights from Maine to Portugal
Discover carefully curated flight deals from Maine to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 22, 2025.

Thu 2/56:05 pmBOS - OPO

1 stop10h 50mTAP AIR PORTUGAL

Wed 2/116:00 pmOPO - BOS

1 stop25h 35mTAP AIR PORTUGAL

Deal found 12/21

$383

Tue 3/1010:50 pmBOS - OPO

1 stop32h 25mSWISS

Thu 3/1911:25 amOPO - BOS

1 stop13h 55mSWISS

Deal found 12/21

$384

Wed 3/182:15 pmBOS - OPO

2 stops15h 15mUnited Airlines

Wed 4/1512:35 pmOPO - BOS

1 stop12h 29mUnited Airlines

Deal found 12/21

$391

Wed 3/117:30 pmBOS - OPO

1 stop11h 00mKLM

Wed 3/1811:15 amOPO - BOS

1 stop12h 40mKLM

Deal found 12/20

$395

Tue 2/106:30 pmBOS - OPO

1 stop11h 00mDelta

Wed 2/185:00 amOPO - BOS

1 stop13h 25mDelta

Deal found 12/20

$395

Thu 2/58:40 amPWM - LIS

2 stops18h 15mAir Canada

Thu 2/1211:20 amLIS - PWM

2 stops41h 00mAir Canada

Deal found 12/22

$490

Thu 2/53:58 pmPWM - LIS

1 stop12h 07mAmerican Airlines

Thu 2/1210:55 amLIS - PWM

1 stop17h 22mAmerican Airlines

Deal found 12/22

$506

Thu 2/56:00 amPWM - LIS

2 stops20h 55mMultiple Airlines

Thu 2/1211:20 amLIS - PWM

3 stops17h 00mMultiple Airlines

Deal found 12/22

$513

Mon 4/135:30 pmBOS - FAO

1 stop12h 00mAer Lingus

Wed 4/2211:40 amFAO - BOS

1 stop12h 05mAer Lingus

Deal found 12/20

$534

Mon 5/410:50 pmBOS - LIS

1 stop28h 40mLEVEL

Sun 5/1710:10 pmLIS - BOS

1 stop27h 55mLEVEL

Deal found 12/19

$570

Mon 3/166:30 pmBOS - OPO

1 stop11h 00mUnited Airlines

Wed 4/1512:35 pmOPO - BOS

1 stop12h 29mUnited Airlines

Deal found 12/21

$391

Tue 2/106:30 pmBOS - OPO

1 stop11h 00mDelta

Mon 2/1611:15 amOPO - BOS

1 stop31h 10mDelta

Deal found 12/20

$395

Tue 3/176:30 pmBOS - OPO

1 stop11h 00mUnited Airlines

Tue 3/246:00 amOPO - BOS

2 stops19h 41mUnited Airlines

Deal found 12/20

$392

Tue 2/106:30 pmBOS - OPO

1 stop11h 00mDelta

Fri 2/205:00 amOPO - BOS

1 stop13h 25mDelta

Deal found 12/20

$395

Sat 1/1010:25 pmBOS - PDL

1 stop21h 20mTAP AIR PORTUGAL

Sat 1/176:30 amPDL - BOS

1 stop17h 40mTAP AIR PORTUGAL

Deal found 12/22

$484

Sun 2/86:00 amBOS - OPO

2 stops23h 30mDelta

Mon 2/1611:15 amOPO - BOS

2 stops33h 00mDelta

Deal found 12/20

$410

Tue 1/209:50 pmBOS - FAO

1 stop11h 00mSWISS

Wed 1/282:40 pmFAO - BOS

1 stop34h 40mSWISS

Deal found 12/20

$503

Fri 1/233:40 pmBOS - FAO

2 stops19h 25mMultiple Airlines

Wed 1/282:40 pmFAO - BOS

2 stops34h 02mMultiple Airlines

Deal found 12/20

$517

Sat 1/2412:55 pmBOS - FAO

2 stops16h 15mKLM

Sat 2/75:45 pmFAO - BOS

1 stop24h 40mKLM

Deal found 12/20

$527

Sun 3/16:05 pmBOS - PDL

1 stop20h 30mTAP AIR PORTUGAL

Sat 3/79:30 amPDL - BOS

1 stop14h 40mTAP AIR PORTUGAL

Deal found 12/19

$494

Mon 2/91:00 pmBOS - OPO

2 stops16h 30mDelta

Mon 2/1611:15 amOPO - BOS

2 stops33h 00mDelta

Deal found 12/20

$423

Tue 1/205:35 pmBOS - LIS

1 stop17h 30mMultiple Airlines

Sat 1/246:55 pmLIS - BOS

2 stops32h 27mMultiple Airlines

Deal found 12/21

$527

Thu 2/57:10 pmBOS - FAO

1 stop19h 10mKLM

Thu 2/128:15 pmFAO - BOS

1 stop22h 10mKLM

Deal found 12/21

$527

Wed 3/187:05 pmBOS - PDL

1 stop25h 40mTAP AIR PORTUGAL

Wed 3/257:25 pmPDL - BOS

1 stop23h 10mTAP AIR PORTUGAL

Deal found 12/22

$503

Fri 1/233:12 pmPWM - LIS

1 stop11h 58mUnited Airlines

Tue 1/2710:15 amLIS - PWM

2 stops13h 37mUnited Airlines

Deal found 12/20

$511

Thu 4/1610:50 pmBOS - LIS

1 stop17h 40mLEVEL

Tue 4/212:00 pmLIS - BOS

1 stop12h 05mLEVEL

Deal found 12/21

$620

Sat 2/76:00 amBOS - FAO

2 stops23h 10mKLM

Sat 3/79:15 amFAO - BOS

1 stop33h 05mKLM

Deal found 12/20

$531

Tue 2/39:20 pmBOS - GRW

2 stops9h 00mMultiple Airlines

Tue 2/103:30 pmGRW - BOS

1 stop8h 25mMultiple Airlines

Deal found 12/20

$552

Tue 1/206:05 pmBOS - PDL

1 stop10h 15mTAP AIR PORTUGAL

Mon 1/267:25 pmPDL - BOS

1 stop23h 20mTAP AIR PORTUGAL

Deal found 12/21

$503

Tue 1/1312:40 pmPWM - OPO

2 stops22h 20mAmerican Airlines

Mon 1/198:40 pmOPO - PWM

2 stops31h 14mAmerican Airlines

Deal found 12/20

$682

Last-minute flights from Maine to Portugal
Discover last-minute flight deals from Maine to Portugal. Data last updated December 22, 2025 and is based on user searches.

Mon 1/123:40 pmBOS - OPO

2 stops15h 25mBrussels Airlines

Wed 1/2112:55 pmOPO - BOS

2 stops30h 57mBrussels Airlines

Deal found 12/21

$420

Mon 1/1210:10 pmBOS - OPO

1 stop32h 05mMultiple Airlines

Mon 1/1912:55 pmOPO - BOS

2 stops30h 57mMultiple Airlines

Deal found 12/21

$423

Mon 1/123:40 pmBOS - OPO

2 stops15h 25mMultiple Airlines

Wed 1/2112:10 pmOPO - BOS

2 stops26h 04mMultiple Airlines

Deal found 12/20

$429

Tue 1/1310:45 amBOS - OPO

2 stops43h 30mMultiple Airlines

Mon 1/1912:55 pmOPO - BOS

2 stops30h 57mMultiple Airlines

Deal found 12/20

$416

Fri 1/1610:45 pmBOS - OPO

1 stop15h 15mTAP AIR PORTUGAL

Mon 1/265:55 pmOPO - BOS

1 stop25h 50mTAP AIR PORTUGAL

Deal found 12/21

$383

Fri 1/1610:45 pmBOS - PDL

1 stop21h 00mTAP AIR PORTUGAL

Fri 1/239:30 amPDL - BOS

1 stop14h 40mTAP AIR PORTUGAL

Deal found 12/19

$438

Sat 1/1710:25 pmBOS - OPO

1 stop14h 40mTAP AIR PORTUGAL

Sat 1/316:55 amOPO - BOS

1 stop12h 40mTAP AIR PORTUGAL

Deal found 12/21

$403

Sun 1/183:40 pmBOS - OPO

2 stops15h 25mMultiple Airlines

Tue 1/279:10 amOPO - BOS

2 stops16h 10mMultiple Airlines

Deal found 12/22

$406

Mon 1/193:40 pmBOS - OPO

2 stops38h 35mMultiple Airlines

Wed 1/2812:10 pmOPO - BOS

1 stop13h 10mMultiple Airlines

Deal found 12/20

$388

Mon 1/193:40 pmBOS - OPO

2 stops38h 35mMultiple Airlines

Mon 1/2612:05 pmOPO - BOS

2 stops50h 27mMultiple Airlines

Deal found 12/20

$391

Mon 1/1910:10 pmBOS - OPO

1 stop32h 05mSWISS

Mon 1/269:10 amOPO - BOS

2 stops40h 10mSWISS

Deal found 12/20

$426

Tue 1/209:50 pmBOS - OPO

1 stop32h 25mSWISS

Tue 1/279:10 amOPO - BOS

2 stops16h 10mSWISS

Deal found 12/21

$385

One-way flights from Maine to Portugal
Search for one-way flight options from Maine to Portugal. Find affordable one-way fares based on user searches. Data last updated December 22, 2025.

Sun 1/1110:45 pmBOS - PDL

1 stop15h 50mTAP AIR PORTUGAL

Deal found 12/22

$218

Fri 1/236:05 pmBOS - PDL

1 stop10h 35mTAP AIR PORTUGAL

Deal found 12/20

$226

Sun 3/87:05 pmBOS - PDL

1 stop10h 15mTAP AIR PORTUGAL

Deal found 12/21

$233

Wed 1/286:05 pmBOS - PDL

1 stop10h 15mTAP AIR PORTUGAL

Deal found 12/20

$237

Sat 1/106:05 pmBOS - PDL

1 stop10h 20mTAP AIR PORTUGAL

Deal found 12/22

$244

Sun 2/110:45 pmBOS - OPO

2 stops29h 40mMultiple Airlines

Deal found 12/21

$249

Thu 1/810:45 pmBOS - PDL

1 stop15h 45mTAP AIR PORTUGAL

Deal found 12/22

$250

Thu 2/56:05 pmBOS - PDL

1 stop20h 25mTAP AIR PORTUGAL

Deal found 12/20

$253

Fri 1/307:00 amBOS - OPO

3 stops44h 55mMultiple Airlines

Deal found 12/21

$253

Tue 2/310:40 pmBOS - OPO

1 stop28h 30mMultiple Airlines

Deal found 12/21

$254

Sat 1/3110:25 pmBOS - OPO

2 stops28h 55mMultiple Airlines

Deal found 12/21

$256

Mon 2/210:40 pmBOS - OPO

1 stop31h 05mMultiple Airlines

Deal found 12/20

$258

Find flight deals from Maine to Portugal

Most accurate provider	Gotogate 3 stars
Most trusted provider	Gotogate 3 stars
Round-trip from	$383 (oojo)
One-way from	$218 (oojo)
Popular in	June
Cheapest in	November
Average price	$869

Provider with most accurate pricing for Boston Logan Intl-Lisbon Humberto Delgado flight deals.

Search Deals

Provider most trusted by Cheapflights users for Boston Logan Intl-Lisbon Humberto Delgado flights.

Search Deals

From Maine to Portugal

Search Deals

One-way flight from Maine to Portugal

Search Deals

Highest demand for flights based on searches. 13% potential increase in price ($119 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Thu 2/5

6:05 pm-9:55 am

1 stop10h 50m

Porto

Wed 2/11

6:00 pm-2:35 pm

1 stop25h 35m

$383

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Tue 3/10

10:50 pm-11:15 am

1 stop32h 25m

Porto

Thu 3/19

11:25 am-9:20 pm

1 stop13h 55m

$384

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Wed 3/18

2:15 pm-9:30 am

2 stops15h 15m

Porto

Wed 4/15

12:35 pm-8:04 pm

1 stop12h 29m

$391

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Mon 3/16

6:30 pm-9:30 am

1 stop11h 00m

Porto

Wed 4/15

12:35 pm-8:04 pm

1 stop12h 29m

$391

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Tue 3/17

6:30 pm-9:30 am

1 stop11h 00m

Porto

Tue 3/24

6:00 am-9:41 pm

2 stops19h 41m

$392

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Wed 3/11

7:30 pm-10:30 am

1 stop11h 00m

Porto

Wed 3/18

11:15 am-7:55 pm

1 stop12h 40m

$395

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Tue 2/10

6:30 pm-10:30 am

1 stop11h 00m

Porto

Wed 2/18

5:00 am-1:25 pm

1 stop13h 25m

$395

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Tue 2/10

6:30 pm-10:30 am

1 stop11h 00m

Porto

Mon 2/16

11:15 am-1:25 pm

1 stop31h 10m

$395

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Tue 2/10

6:30 pm-10:30 am

1 stop11h 00m

Porto

Fri 2/20

5:00 am-1:25 pm

1 stop13h 25m

$395

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 2/8

6:00 am-10:30 am

2 stops23h 30m

Porto

Mon 2/16

11:15 am-3:15 pm

2 stops33h 00m

$410

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 60 results

...

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?

It’s typically best to fly out from Maine to Portugal in the evening. Doing so could potentially save you 41% on the flight price compared to flying in the morning, which is usually more expensive.

Related info for your journey

How long is the flight from Maine to Portugal?
For as low as $383, TAP AIR PORTUGAL can have you in Portugal from Maine in 10h 50m. Maine and Portugal are separated by a distance of 3134 mi. This flight may include one or multiple stops.
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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Maine to Portugal

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$578	Average$778	FlexibilityNo cancel fee	On-time69%

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$218+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Maine to Portugal with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

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Cheap flight deals from Maine to Portugal

Cheapest flights from Maine to PortugalExplore 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 December 22, 2025.

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 December 22, 2025.

Find flight deals from Maine to Portugal

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

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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.

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 December 22, 2025.

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.

How long is the flight from Maine to Portugal?

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

How can I find direct flights from Maine to Portugal?

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

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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.

Top airline flying from Maine to Portugal

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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 December 22, 2025.