HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portugal

$218+ 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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LIS
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to Portugal with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 December 12, 2025.

This Iberia deal was found by Cheapflights users on 12/10. 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 12/117:15 pmBOS - OPO
1 stop17h 00mMultiple Airlines
Mon 12/158:20 amOPO - BOS
1 stop11h 55mMultiple Airlines
Deal found 12/10$558
This Mytrip deal was found by Cheapflights users on 12/10. 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 12/159:25 pmBOS - PDL
1 stop13h 15mMultiple Airlines
Mon 12/228:05 pmPDL - BOS
1 stop27h 50mMultiple Airlines
Deal found 12/10$565
This Cheapflightsfares deal was found by Cheapflights users on 12/10. 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.
Sun 12/149:25 pmBOS - PDL
Nonstop4h 55mAzores Airlines
Sun 12/215:50 pmPDL - BOS
Nonstop6h 10mAzores Airlines
Deal found 12/10$579
This KAYAK deal was found by Cheapflights users on 12/9. 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.
Thu 12/118:40 pmBOS - OPO
2 stops34h 25mBrussels Airlines
Tue 12/2312:55 pmOPO - BOS
2 stops34h 40mBrussels Airlines
Deal found 12/9$587
This KAYAK deal was found by Cheapflights users on 12/9. 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.
Thu 12/118:40 pmBOS - OPO
2 stops34h 25mBrussels Airlines
Wed 12/2412:55 pmOPO - BOS
2 stops34h 40mBrussels Airlines
Deal found 12/9$590
This Travelocity deal was found by Cheapflights users on 12/10. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3010:40 pmBOS - OPO
1 stop28h 30mIberia
Thu 1/89:55 pmOPO - BOS
2 stops29h 00mIberia
Deal found 12/10$597
This Gotogate deal was found by Cheapflights users on 12/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/149:25 pmBOS - PDL
Nonstop4h 55mMultiple Airlines
Tue 12/1611:15 amPDL - BOS
1 stop12h 40mMultiple Airlines
Deal found 12/10$604
This Mytrip deal was found by Cheapflights users on 12/11. 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.
Fri 12/121:00 pmBOS - LIS
2 stops27h 10mMultiple Airlines
Mon 12/159:30 pmLIS - BOS
2 stops26h 05mMultiple Airlines
Deal found 12/11$609
This Ovago deal was found by Cheapflights users on 12/9. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/137:15 pmBOS - OPO
1 stop19h 00mBritish Airways
Wed 12/2412:25 pmOPO - BOS
1 stop31h 50mBritish Airways
Deal found 12/9$611
This KAYAK deal was found by Cheapflights users on 12/9. 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.
Thu 12/118:40 pmBOS - OPO
2 stops34h 25mBrussels Airlines
Sun 12/2112:55 pmOPO - BOS
2 stops53h 30mBrussels Airlines
Deal found 12/9$618
This oojo deal was found by Cheapflights users on 12/10. 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.
Wed 12/317:50 pmBOS - LIS
1 stop19h 30mIcelandair
Thu 1/89:20 pmLIS - BOS
1 stop25h 30mIcelandair
Deal found 12/10$639
This Iberia deal was found by Cheapflights users on 12/9. 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.
Sun 12/147:15 pmBOS - OPO
1 stop16h 25mMultiple Airlines
Wed 12/2412:25 pmOPO - BOS
1 stop12h 25mMultiple Airlines
Deal found 12/9$645

Find flight deals from Boston to Portugal

Keep the following information in mind while searching for Boston to Portugal flight deals. Data was last updated December 12, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$384
(oojo)

One-way from

$218
(oojo)

Popular in

June

Cheapest in

November

Average price

$869

Good round-trip deal

$539 or less

Good one-way deal

$265 or less
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 Boston Logan Intl to Portugal
Search Deals
One-way flight from Boston Logan Intl 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
Price to beat on a round-trip flight from Boston Logan Intl to Portugal.
Search Deals
Price to beat on a one-way flight from Boston Logan Intl to Portugal.
Search Deals

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 December 12, 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

Sun 3/8

7:57 pm-9:30 am

1 stop9h 33m

Porto

Wed 3/18

12:35 pm-8:15 pm

1 stop11h 40m

$385

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 3/8

7:57 pm-9:30 am

1 stop9h 33m

Porto

Tue 3/17

12:35 pm-9:41 pm

1 stop13h 06m

$385

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Tue 3/10

12:10 pm-9:30 am

2 stops17h 20m

Porto

Tue 3/17

12:35 pm-9:41 pm

1 stop13h 06m

$389

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Mon 3/9

12:10 pm-9:30 am

2 stops17h 20m

Porto

Tue 3/17

12:35 pm-9:56 am

2 stops25h 21m

$389

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Mon 3/9

12:10 pm-9:30 am

2 stops17h 20m

Porto

Wed 3/18

12:35 pm-11:57 pm

2 stops15h 22m

$389

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Mon 3/9

7:30 pm-10:30 am

1 stop11h 00m

Porto

Mon 3/30

11:45 am-4:30 pm

1 stop33h 45m

$395

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Wed 3/11

9:30 pm-10:25 am

1 stop32h 55m

Porto

Wed 3/18

11:15 am-7:55 pm

1 stop12h 40m

$396

BostonPonta Delgada

BOS - PDL

BOSPDL

Boston Logan Intl

Fri 1/16

10:45 pm-6:35 pm

1 stop15h 50m

Ponta Delgada Nordela

Fri 1/23

7:25 pm-2:35 pm

1 stop23h 10m

$403

BostonPonta Delgada

BOS - PDL

BOSPDL

Boston Logan Intl

Sat 2/7

10:25 pm-11:45 pm

1 stop21h 20m

Ponta Delgada Nordela

Sat 2/14

7:25 pm-2:35 pm

1 stop23h 10m

$403

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Mon 3/23

12:10 pm-9:30 am

2 stops17h 20m

Porto

Thu 4/16

12:35 pm-8:03 pm

1 stop12h 28m

$404

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 60 results
1
2
3
...
6

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 $346). 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 December 12, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 22% 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 Saturday evenings 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.

Weekly flight availability from Boston to Portugal

Explore weekly flight availability from Boston 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 December 12, 2025.

The most flights from BOS to PT0 are scheduled on a Monday (6 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (5 on average).

How often are flights from Boston to Portugal delayed?

About 26% of weekly flights between Boston and Portugal have experienced delays in the past year, with the average delay time being 130 minutes.

What is the most punctual flight time for Boston to Portugal flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Boston to Portugal flights?

Over the last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 19% of flights being delayed.

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 December 12, 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
8,007 reviews

Food

7.3

Boarding

8.1

Comfort

7.9

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,007 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Boarding

8.1

Comfort

7.9

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Azores Airlines
7.5
Good
88 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Boarding

8.1

Comfort

7.9

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air France
7.4
Good
1,504 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Boarding

8.1

Comfort

7.9

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,094 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Boarding

8.1

Comfort

7.9

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
TAP AIR PORTUGAL
7.1
Good
2,089 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Boarding

8.1

Comfort

7.9

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 227 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 9h 33m. Fly via United Airlines, TAP AIR PORTUGAL, or Aer Lingus to get the fastest option. Boston and Portugal are separated by a distance of 3134 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 United Airlines, with whom users have recently found tickets for as low as $158. However, be on the lookout for offers from LEVEL and Iberia, 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 (84%), TAP AIR PORTUGAL (84%) or Emirates (80%) 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 $1,600, our data indicates the cheapest price to be $263. The most popular route (Boston Logan Intl - Lisbon Humberto Delgado), is priced around $370.

  • 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 $346). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boston to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Heathrow flights
Boston to Charles de Gaulle flights
Boston to Leonardo da Vinci/Fiumicino flights
Boston to Dublin flights
Boston to Gatwick flights
Boston to Lisbon flights
Boston to London City flights
Boston to Orly flights
Boston to Athens flights
Boston to Madrid flights
Boston to Barcelona-El Prat flights
Boston to Stansted flights
Boston to Amsterdam flights
Boston to Zurich flights
Boston to Istanbul flights
Boston to Luton flights
Boston to Frankfurt flights
Boston to Keflavik Intl flights
Boston to Edinburgh flights
Boston to Munich flights
Boston to Ponta Delgada flights
Boston to Malpensa flights
Boston to Vicenza flights
Boston to Florence flights
Boston to Copenhagen flights
Boston to Beauvais-Tille flights
Boston to Linate flights
Boston to Geneva flights
Boston to Bruxelles-National flights
Boston to Shannon flights
Boston to Sabiha Gokcen flights
Boston to Porto flights
Boston to Naples flights
Hartford to Dublin flights
Boston to Oslo Gardermoen flights
Boston to Ciampino flights
Boston to Bologna flights
Boston to Nice flights
Boston to Prague flights
Boston to Vienna flights
Boston to Glasgow Intl flights
Boston to Bergamo flights
Boston to Frederic Chopin flights
Boston to Berlin flights
Boston to Manchester flights
Boston to Tirana flights
Boston to Arlanda flights
Boston to Funchal flights
Boston to Málaga flights
Boston to Duesseldorf Intl flights

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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
VuelingCheapest$165Average$589FlexibilityNo cancel feeOn-time88%
LEVELCheapest$229Average$526FlexibilityNo cancel feeOn-timeN/A
PLAYCheapest$333Average$377FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$338Average$658FlexibilityNo cancel feeOn-time79%
IberiaCheapest$343Average$599FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$370Average$543FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$374Average$679FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$381Average$508FlexibilityNo cancel feeOn-time77%
KLMCheapest$394Average$706FlexibilityNo cancel feeOn-time75%
LEVELCheapest$405Average$468FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.