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$199+ Cheap flights from Boston (BOS) 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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LIS
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheap flight deals from Boston to Portugal

Keep the following information in mind while searching for Boston to Portugal flight deals. Data was last updated October 28, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$392
(Justfly.com)

One-way from

$199
(SmartFares)

Popular in

June

Cheapest in

February

Average price

$723

Good round-trip deal

$502 or less

Good one-way deal

$180 or less
Provider with most accurate pricing for Boston Logan Intl-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Lisbon Humberto Delgado flights.
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From Boston Logan Intl to Portugal
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One-way flight from Boston Logan Intl to Portugal
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Highest demand for flights based on searches. 12% potential increase in price ($112 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Boston Logan Intl to Portugal.
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Price to beat on a one-way flight from Boston Logan Intl to Portugal.
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Find flight deals from Boston to Portugal

Cheapest flights from Boston to Portugal
Explore the most affordable flight options available from Boston to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/109:59 amBOS - OPO
2 stops19h 31mDelta
Wed 11/196:00 amOPO - BOS
2 stops17h 55mDelta
Deal found 10/28$409
This FlightHub deal was found by Cheapflights users on 10/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/76:05 pmBOS - OPO
1 stop10h 55mTAP AIR PORTUGAL
Mon 12/225:55 pmOPO - BOS
1 stop25h 50mTAP AIR PORTUGAL
Deal found 10/28$416
This CheapOair deal was found by Cheapflights users on 10/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/255:30 amBOS - OPO
2 stops25h 10mMultiple Airlines
Tue 12/21:45 pmOPO - BOS
1 stop33h 50mMultiple Airlines
Deal found 10/26$422
This United deal was found by Cheapflights users on 10/28. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/279:40 amBOS - OPO
2 stops18h 50mMultiple Airlines
Thu 12/412:05 pmOPO - BOS
1 stop12h 55mMultiple Airlines
Deal found 10/28$423
This Orbitz deal was found by Cheapflights users on 10/26. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:03 pmBOS - OPO
2 stops14h 37mIberia
Sun 12/218:45 amOPO - BOS
1 stop17h 10mIberia
Deal found 10/26$426
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Thu 11/1312:25 pmBOS - OPO
2 stops16h 05mUnited Airlines
Thu 11/2012:35 pmOPO - BOS
2 stops16h 07mUnited Airlines
Deal found 10/26$428
This Flightnetwork deal was found by Cheapflights users on 10/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/245:10 pmBOS - FAO
1 stop12h 20mAer Lingus
Tue 12/911:10 amFAO - BOS
1 stop12h 45mAer Lingus
Deal found 10/28$428
This KAYAK deal was found by Cheapflights users on 10/26. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/810:10 pmBOS - OPO
2 stops34h 15mSWISS
Mon 12/159:10 amOPO - BOS
2 stops40h 10mSWISS
Deal found 10/26$431
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/148:40 pmBOS - OPO
1 stop11h 10mMultiple Airlines
Tue 11/1812:05 pmOPO - BOS
1 stop13h 15mMultiple Airlines
Deal found 10/28$432
This CrystalTravel deal was found by Cheapflights users on 10/27. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2810:50 pmBOS - OPO
1 stop15h 40mSWISS
Tue 11/412:05 pmOPO - BOS
1 stop13h 15mSWISS
Deal found 10/27$434
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/48:40 pmBOS - OPO
1 stop11h 10mMultiple Airlines
Tue 11/1112:05 pmOPO - BOS
1 stop13h 15mMultiple Airlines
Deal found 10/27$437
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/103:40 pmBOS - OPO
2 stops13h 10mMultiple Airlines
Thu 12/186:35 amOPO - BOS
2 stops18h 07mMultiple Airlines
Deal found 10/28$438

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston 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 October 28, 2025.
Use the filters below to find and compare flights from Boston to Portugal that are best for you.

Fly from

Boston

Fly to

Portugal

Route

Depart

Return

Price

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Thu 11/27

9:40 am-9:30 am

2 stops18h 50m

Porto

Thu 12/4

12:05 pm-8:00 pm

1 stop12h 55m

$423

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Thu 3/5

9:30 am-9:30 am

2 stops19h 00m

Porto

Wed 3/18

12:35 pm-8:15 pm

1 stop11h 40m

$428

BostonFaro

BOS - FAO

BOSFAO

Boston Logan Intl

Mon 11/24

5:10 pm-10:30 am

1 stop12h 20m

Faro

Tue 12/9

11:10 am-6:55 pm

1 stop12h 45m

$428

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Thu 11/13

12:25 pm-9:30 am

2 stops16h 05m

Porto

Thu 11/20

12:35 pm-11:42 pm

2 stops16h 07m

$428

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sat 2/28

6:25 pm-9:30 am

1 stop10h 05m

Porto

Thu 4/2

6:00 am-4:00 pm

1 stop15h 00m

$430

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sat 2/28

9:45 am-9:30 am

2 stops18h 45m

Porto

Fri 3/27

6:00 am-2:10 pm

1 stop12h 10m

$435

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Thu 3/5

9:20 am-9:30 am

2 stops19h 10m

Porto

Fri 3/27

6:00 am-2:10 pm

1 stop12h 10m

$435

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sat 2/28

9:45 am-9:30 am

2 stops18h 45m

Porto

Tue 3/31

6:00 am-4:00 pm

1 stop15h 00m

$435

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Fri 2/20

2:20 pm-7:40 am

2 stops12h 20m

Porto

Tue 2/24

8:40 pm-3:15 pm

1 stop23h 35m

$440

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Thu 3/19

5:45 am-9:30 am

2 stops23h 45m

Porto

Thu 3/26

6:00 am-2:10 pm

1 stop12h 10m

$441

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

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

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

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

Currently, February is the cheapest month in which you can book a flight from Boston to Portugal (average of $336). Flying from Boston to Portugal in May is currently the most expensive (average of $479). 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 BOS to PT?

Find hourly flight availability from Boston 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 October 28, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 35% on flights from Boston to Portugal by exploring options for tickets at noon.

What is the cheapest day to fly from Boston to Portugal?

Use this chart to determine the cheapest time to fly round-trip from Boston to Portugal. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boston to Portugal flight should consider departing on Tuesday at noon when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated October 28, 2025.
Peruse reviews from past customers who have flown with Delta, Azores Airlines, and Air France from Boston to Portugal to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,994 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,994 reviews
Delta
7.9
Good
7,994 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Azores Airlines
7.4
Good
82 reviews
Delta
7.9
Good
7,994 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Air France
7.4
Good
1,481 reviews
Delta
7.9
Good
7,994 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
9,000 reviews
Delta
7.9
Good
7,994 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
TAP AIR PORTUGAL
7.1
Good
2,034 reviews
Delta
7.9
Good
7,994 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

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

  • What airport do you fly from for flights from Boston to Portugal?

    Located just 2.6 mi from the city center, Boston Logan Intl (BOS) is the airport most travelers will use when flying to Portugal from Boston.

  • How popular is this Boston to Portugal flight route?

    This flight path from Boston Logan Intl to Portugal was viewed by 212 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 Boston to Portugal?

    There are many flights that can get you from Boston to Portugal in 12h 20m. Fly via United Airlines, Aer Lingus, or Scandinavian Airlines to get the fastest option. Boston 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 Boston to Portugal one-way?

    The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as $206. However, be on the lookout for offers from Azores Airlines and LEVEL, as they are both options that can get you from Boston to Portugal for a low price.

  • What are the most popular routes from Boston to Portugal?

    While some choose either Boston Logan Intl - Ponta Delgada Nordela or Boston Logan Intl - Porto, Boston Logan Intl - Lisbon Humberto Delgado is the most popular route from Boston to Portugal.

  • What are the most reliable airlines from Boston to Portugal?

    No one likes to see their flight delayed. When booking a flight from Boston to Portugal consider choosing JetBlue (83%), TAP AIR PORTUGAL (83%) or Emirates (83%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Boston to Portugal?

    Looking for the cheapest flight from Boston to Portugal? While on average our users pay $1,335, our data indicates the cheapest price to be $179. The most popular route (Boston Logan Intl - Lisbon Humberto Delgado), is priced around $410.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boston 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 Boston to Portugal?

    Currently, February is the cheapest month in which you can book a flight from Boston to Portugal (average of $336). Flying from Boston to Portugal in May is currently the most expensive (average of $479). 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.

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Alternative routes for Boston 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 Boston to Portugal

Discover the top 10 airlines that operate flights from Boston 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
VuelingCheapest$165Average$603FlexibilityNo cancel feeOn-time88%
LEVELCheapest$228Average$520FlexibilityNo cancel feeOn-timeN/A
PLAYCheapest$333Average$380FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$338Average$631FlexibilityNo cancel feeOn-time79%
IberiaCheapest$343Average$604FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$374Average$682FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$381Average$568FlexibilityNo cancel feeOn-time77%
KLMCheapest$394Average$713FlexibilityNo cancel feeOn-time75%
IcelandairCheapest$402Average$545FlexibilityNo cancel feeOn-time76%
LEVELCheapest$405Average$405FlexibilityNo cancel feeOn-timeN/A

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