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$239+ Cheap flights from Massachusetts 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LIS
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Massachusetts to Portugal

Keep the following information in mind while searching for Massachusetts to Portugal flight deals. Data was last updated September 15, 2025.

Round-trip from

$417
(Kiwi.com)

One-way from

$239
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$798

Good round-trip deal

$611 or less

Good one-way deal

$241 or less
From Massachusetts to Portugal
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One-way flight from Massachusetts to Portugal
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Highest demand for flights based on searches. 12% potential increase in price ($109 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Massachusetts to Portugal.
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Price to beat on a one-way flight from Massachusetts to Portugal.
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Find flight deals from Massachusetts to Portugal

Cheapest flights from Massachusetts to Portugal
Explore the most affordable flight options available from Massachusetts to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/54:20 pmBOS - OPO
1 stop14h 20mUnited Airlines
Fri 11/1412:35 pmOPO - BOS
2 stops30h 54mUnited Airlines
Deal found 9/14$420
This Air Canada deal was found by Cheapflights users on 9/13. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/263:40 pmBOS - OPO
2 stops15h 25mMultiple Airlines
Mon 12/14:15 pmOPO - BOS
2 stops31h 57mMultiple Airlines
Deal found 9/13$422
This United deal was found by Cheapflights users on 9/14. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1310:40 amBOS - OPO
2 stops17h 50mMultiple Airlines
Tue 12/212:05 pmOPO - BOS
1 stop13h 15mMultiple Airlines
Deal found 9/14$423
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 10/135:05 pmBOS - OPO
2 stops12h 55mSWISS
Wed 10/2212:20 pmOPO - BOS
1 stop32h 05mSWISS
Deal found 9/13$424
This SWISS deal was found by Cheapflights users on 9/14. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/39:50 pmBOS - OPO
1 stop32h 25mSWISS
Sun 11/96:35 pmOPO - BOS
2 stops54h 45mSWISS
Deal found 9/14$425
This Mytrip deal was found by Cheapflights users on 9/13. 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.
Mon 11/35:10 pmBOS - FAO
1 stop12h 20mAer Lingus
Sun 11/1611:10 amFAO - BOS
1 stop12h 45mAer Lingus
Deal found 9/13$425
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Tue 10/145:05 pmBOS - OPO
1 stop13h 25mSWISS
Tue 10/2112:15 pmOPO - BOS
1 stop12h 40mSWISS
Deal found 9/12$426
This United deal was found by Cheapflights users on 9/14. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/259:13 pmBOS - OPO
1 stop32h 17mMultiple Airlines
Sun 11/96:15 amOPO - BOS
1 stop17h 20mMultiple Airlines
Deal found 9/14$427
This Booking.com deal was found by Cheapflights users on 9/12. 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.
Wed 10/155:05 pmBOS - OPO
1 stop20h 25mSWISS
Fri 10/3112:50 pmOPO - BOS
1 stop12h 30mSWISS
Deal found 9/12$428
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/139:05 pmBOS - OPO
1 stop31h 40mUnited Airlines
Wed 10/2212:05 pmOPO - BOS
1 stop13h 05mUnited Airlines
Deal found 9/13$429
This SWISS deal was found by Cheapflights users on 9/14. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/145:05 pmBOS - OPO
1 stop33h 40mSWISS
Wed 10/228:40 amOPO - BOS
1 stop16h 15mSWISS
Deal found 9/14$430
This Gurufare deal was found by Cheapflights users on 9/14. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/79:50 pmBOS - OPO
1 stop32h 25mSWISS
Mon 12/229:10 amOPO - BOS
2 stops40h 10mSWISS
Deal found 9/14$431

Cheapflights Fare Finder

 
Customize your flight search to find flights from Massachusetts to Portugal 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 September 15, 2025.
Use the filters below to find and compare flights from Massachusetts to Portugal that are best for you.

Fly from

Massachusetts

Fly to

Portugal

Route

Depart

Return

Price

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 11/16

9:50 pm-11:15 am

1 stop32h 25m

Porto

Sun 11/30

6:35 pm-8:20 pm

2 stops54h 45m

$425

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Mon 11/3

9:50 pm-11:15 am

1 stop32h 25m

Porto

Sun 11/9

6:35 pm-8:20 pm

2 stops54h 45m

$425

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Mon 10/13

9:05 pm-9:45 am

1 stop31h 40m

Porto

Wed 10/22

12:05 pm-8:10 pm

1 stop13h 05m

$429

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Fri 11/14

4:20 pm-9:30 am

1 stop12h 10m

Porto

Wed 12/3

6:00 am-1:25 pm

1 stop12h 25m

$430

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Mon 10/13

5:05 pm-11:25 am

1 stop13h 20m

Porto

Wed 10/22

8:40 am-7:55 pm

1 stop16h 15m

$430

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Fri 11/14

4:20 pm-9:30 am

1 stop12h 10m

Porto

Tue 12/2

6:00 am-1:25 pm

1 stop12h 25m

$430

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Wed 10/15

5:05 pm-6:30 pm

1 stop20h 25m

Porto

Tue 10/21

8:40 am-7:55 pm

1 stop16h 15m

$430

BostonFaro

BOS - FAO

BOSFAO

Boston Logan Intl

Mon 11/10

5:10 pm-10:30 am

1 stop12h 20m

Faro

Tue 11/25

11:10 am-6:55 pm

1 stop12h 45m

$432

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Thu 11/13

9:40 am-9:30 am

2 stops18h 50m

Porto

Tue 12/2

6:00 am-1:25 pm

1 stop12h 25m

$434

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sat 11/22

8:40 pm-12:50 pm

1 stop11h 10m

Porto

Wed 12/3

12:10 pm-8:20 pm

1 stop13h 10m

$446

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 60 results
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Best time to book a flight from Massachusetts to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Massachusetts 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 Massachusetts to Portugal

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

Currently, January is the cheapest month in which you can book a flight from Massachusetts to Portugal (average of $612). Flying from Massachusetts to Portugal in June is currently the most expensive (average of $1,127). 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.

What is the cheapest time of day to fly from MA to PT?

Find hourly flight availability from Massachusetts 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 September 15, 2025.

When flying from Massachusetts to Portugal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Massachusetts to Portugal

Explore weekly flight availability from Massachusetts to Portugal. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 15, 2025.

The most flights from USMA to PT0 are scheduled on a Monday (9 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (6 on average).

Related info for your journey

Find useful and relevant information for your journey from Massachusetts to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Massachusetts to Portugal flight route?

    This flight path from Massachusetts to Portugal was viewed by 209 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Massachusetts to Portugal?

    For as low as $432, SWISS can have you in Portugal from Massachusetts in 12h 20m. Massachusetts and Portugal are separated by a distance of 3293 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    $245 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on Azores Airlines and United Airlines, with prices starting from $249 and $311, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Massachusetts 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.

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

    Currently, January is the cheapest month in which you can book a flight from Massachusetts to Portugal (average of $612). Flying from Massachusetts to Portugal in June is currently the most expensive (average of $1,127). 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 Massachusetts to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Massachusetts to Portugal

Discover the top 10 airlines that operate flights from Massachusetts to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
VuelingCheapest$165Average$603FlexibilityNo cancel feeOn-time88%
LEVELCheapest$226Average$516FlexibilityNo cancel feeOn-timeN/A
PLAYCheapest$333Average$382FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$338Average$632FlexibilityNo cancel feeOn-time79%
IberiaCheapest$343Average$615FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$374Average$688FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$381Average$569FlexibilityNo cancel feeOn-time77%
KLMCheapest$394Average$725FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$426Average$687FlexibilityNo cancel feeOn-time71%
IcelandairCheapest$439Average$607FlexibilityNo cancel feeOn-time76%

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