Lisbon

$365+ Cheap flights from Boston (BOS) to Lisbon (LIS)

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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LIS
Jul 6 — Jul 131
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Find cheap flights from Boston to Lisbon 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”

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Cheapflights Tip: The best prices from Boston Logan Intl to Lisbon Humberto Delgado are usually found in February or November, booked 85 days in advance, depart on a Monday or Wednesday and return on a Tuesday

Cheap flight deals from Boston to Lisbon

Cheapest flights from Boston to Lisbon
Explore the most affordable flight options available from Boston to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 6, 2026.

This Air Transat deal was found by Cheapflights users on 6/1. 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 Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:10 pm
BOS
-
LIS
1 stop32h 25m
Air Transat
Sun 9/2711:35 am
LIS
-
BOS
1 stop12h 40m
Air Transat
Deal found 6/1$858
This United Airlines deal was found by Cheapflights users on 6/2. 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 12/243:20 pm
BOS
-
LIS
1 stop13h 30m
United Airlines
Mon 12/281:00 pm
LIS
-
BOS
2 stops28h 43m
United Airlines
Deal found 6/2$859
This Delta deal was found by Cheapflights users on 6/2. 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 7/1211:25 pm
BOS
-
LIS
Nonstop6h 20m
Delta
Tue 8/2512:45 pm
LIS
-
BOS
Nonstop7h 30m
Delta
Deal found 6/2$860
This United Airlines deal was found by Cheapflights users on 6/2. 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 7/135:45 am
BOS
-
LIS
1 stop23h 45m
United Airlines
Sun 8/231:00 pm
LIS
-
BOS
1 stop27h 52m
United Airlines
Deal found 6/2$861
This United Airlines deal was found by Cheapflights users on 6/2. 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.
Sun 7/126:05 am
BOS
-
LIS
1 stop21h 15m
United Airlines
Wed 7/2912:55 pm
LIS
-
BOS
2 stops33h 47m
United Airlines
Deal found 6/2$862
This United Airlines deal was found by Cheapflights users on 6/2. 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.
Fri 10/96:00 am
BOS
-
LIS
2 stops22h 20m
United Airlines
Wed 10/211:00 pm
LIS
-
BOS
2 stops30h 22m
United Airlines
Deal found 6/2$863
This United Airlines deal was found by Cheapflights users on 6/2. 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 7/299:25 am
BOS
-
LIS
2 stops18h 55m
United Airlines
Thu 8/61:00 pm
LIS
-
BOS
2 stops27h 16m
United Airlines
Deal found 6/2$864
This KLM deal was found by Cheapflights users on 6/2. 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.
Mon 8/171:34 pm
BOS
-
LIS
1 stop13h 26m
KLM
Tue 8/2512:45 pm
LIS
-
BOS
Nonstop7h 30m
KLM
Deal found 6/2$865
This Virgin Atlantic deal was found by Cheapflights users on 6/1. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/219:05 am
BOS
-
LIS
1 stop17h 55m
Virgin Atlantic
Wed 7/2912:45 pm
LIS
-
BOS
Nonstop7h 25m
Virgin Atlantic
Deal found 6/1$866
This Air Canada deal was found by Cheapflights users on 6/2. 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.
Tue 9/82:45 pm
BOS
-
LIS
2 stops13h 35m
Air Canada
Wed 9/2311:25 am
LIS
-
BOS
1 stop11h 42m
Air Canada
Deal found 6/2$868
This United Airlines deal was found by Cheapflights users on 6/1. 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.
Fri 10/910:40 am
BOS
-
LIS
1 stop17h 40m
United Airlines
Tue 10/276:10 am
LIS
-
BOS
1 stop17h 25m
United Airlines
Deal found 6/1$869

Find flight deals from Boston to Lisbon

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Lisbon (LIS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 6, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$858
(Air Transat)

One-way from

$365
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,065

Good round-trip deal

$877 or less

Good one-way deal

$479 or less
Provider with most accurate pricing for Boston Logan Intl-Lisbon Humberto Delgado flight deals.
Provider most trusted by Cheapflights users for Boston Logan Intl-Lisbon Humberto Delgado flights.
From Boston Logan Intl to Lisbon Humberto Delgado
One-way flight from Boston Logan Intl to Lisbon Humberto Delgado
Highest demand for flights based on searches. 19% potential increase in price ($194 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($23 potential savings vs. average RT price).
Average for round-trip flights in June 2026
Price to beat on a round-trip flight from Boston Logan Intl to Lisbon Humberto Delgado.
Price to beat on a one-way flight from Boston Logan Intl to Lisbon Humberto Delgado.

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Lisbon 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 6, 2026.
Use the filters below to find and compare flights from Boston to Lisbon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Thu 7/16

11:25 pm-10:45 am

Nonstop6h 20m

Lisbon Humberto Delgado

Fri 7/31

12:45 pm-3:10 pm

Nonstop7h 25m

$861

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Sat 8/22

9:05 am-8:00 am

1 stop17h 55m

Lisbon Humberto Delgado

Thu 9/10

12:45 pm-3:20 pm

Nonstop7h 35m

$865

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Wed 8/19

7:10 pm-11:15 am

1 stop11h 05m

Lisbon Humberto Delgado

Wed 8/26

12:45 pm-3:15 pm

Nonstop7h 30m

$880

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Mon 7/13

5:10 pm-11:15 am

1 stop13h 05m

Lisbon Humberto Delgado

Fri 7/24

12:45 pm-3:10 pm

Nonstop7h 25m

$880

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Fri 7/17

11:25 pm-10:45 am

Nonstop6h 20m

Lisbon Humberto Delgado

Mon 8/3

12:45 pm-3:15 pm

Nonstop7h 30m

$884

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Thu 8/13

11:20 pm-10:45 am

Nonstop6h 25m

Lisbon Humberto Delgado

Mon 8/24

12:45 pm-3:15 pm

Nonstop7h 30m

$885

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Tue 7/21

11:25 pm-10:45 am

Nonstop6h 20m

Lisbon Humberto Delgado

Sun 7/26

9:55 am-4:08 pm

1 stop11h 13m

$895

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Wed 8/19

5:10 pm-11:15 am

1 stop13h 05m

Lisbon Humberto Delgado

Mon 8/24

12:45 pm-3:15 pm

Nonstop7h 30m

$904

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Mon 7/20

10:40 am-9:20 am

1 stop17h 40m

Lisbon Humberto Delgado

Mon 7/27

6:15 am-5:40 pm

1 stop16h 25m

$945

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Mon 6/29

8:25 pm-2:35 pm

1 stop13h 10m

Lisbon Humberto Delgado

Fri 7/10

10:00 am-4:08 pm

1 stop11h 08m

$951

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/2

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Boston to Lisbon

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Lisbon in June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
GurufarePrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Lisbon flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Boston-Lisbon flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Boston-Lisbon flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Lisbon flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Lisbon flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon 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 Lisbon

How far ahead should I book a flight from Boston to Lisbon?

The best time to book flights from Boston to Lisbon is 84 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, February is the cheapest month in which you can book a flight from Boston to Lisbon (average of $613). Flying from Boston to Lisbon in June is currently the most expensive (average of $1,065). 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 LIS?

Find hourly flight availability from Boston to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 6, 2026.

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

How much does it cost to fly round-trip from Boston to Lisbon?

The best insider tips for Boston to Lisbon flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Boston to Lisbon trip
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on LIS

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Paul Rubio

Paul Rubio

Expert on BOS

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. 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 Lisbon. Reviews last updated June 6, 2026.
Peruse reviews from past customers who have flown with Delta,Virgin Atlantic, andAir France from Boston to Lisbon 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.

Comfort

7.8

Overall

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Comfort

7.8

Overall

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Comfort

7.8

Overall

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Comfort

7.8

Overall

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Comfort

7.8

Overall

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Comfort

7.8

Overall

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

Find useful and relevant information for your journey from Boston to Lisbon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports do I use to fly from Boston to Lisbon?

    Lisbon Humberto Delgado is the airport most travelers will use when flying to Lisbon from Boston Logan Intl. Booking flights from Logan Intl (BOS) to Humberto Delgado (LIS) should be relatively easy as there are 8 daily flights to Lisbon from 19 different airlines. 6h 20m is how long a flight from Boston to Lisbon Humberto Delgado will take if you book a nonstop flight.

  • How popular is this Boston to Lisbon flight route?

  • How long is the flight from Boston to Lisbon?

    For as low as $861, Delta can have you in Lisbon from Boston in 6h 20m. The distance between Boston and Lisbon is about 3182 mi. All flights are typically nonstop.

  • What are the cheapest airlines flying from Boston to Lisbon round-trip?

    According to our current data, LEVEL ($272), Iberia ($310), and American Airlines ($393) offers the cheapest pricing from Boston to Lisbon. LEVEL is 66% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Boston to Lisbon one-way?

    $174 is the cheapest one-way deal found within the past few days, from Iberia. You may also be able to find cheap deals on KLM and LEVEL, with prices starting from $202 and $229, respectively.

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

    No one likes to see their flight delayed. When booking a flight from Boston to Lisbon consider choosing JetBlue (85%), TAP AIR PORTUGAL (85%) or KLM (83%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Boston to Lisbon?

    The cheapest flight price from Boston to Lisbon is $337. On average you can expect to pay $1,203. The most popular route, (Boston Logan Intl - Lisbon Humberto Delgado), can usually be booked for $388.

  • Where are the most common layover locations when flying from Boston to Lisbon?

  • What are some popular things to do or see while on a layover in London?

    Most London visitors opt to spend their time experiencing Hyde Park, Buckingham Palace, and Piccadilly Circus. Hyde Park, Buckingham Palace and Piccadilly Circus are located about 12.5 mi, 13.7 mi, and 14.1 mi, respectively from London Heathrow if you are interested in checking them out. Travelers in need of a car in London can rent one for about $38 per day.

  • Where are the least popular layover locations for Boston to Lisbon flights?

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Boston to Lisbon (average of $613). Flying from Boston to Lisbon in June is currently the most expensive (average of $1,065). 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

Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Fátima
Ericeira
Oeiras
Beja
Costa da Caparica
Torres Vedras
Nazaré
Colares
Sesimbra

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Top 10 airlines flying from Boston to Lisbon

Discover the top 10 airlines that operate flights from Boston to Lisbon. 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 June 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$272Average$465FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$310Average$603FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$393Average$579FlexibilityNo cancel feeOn-time71%
IcelandairCheapest$396Average$468FlexibilityNo cancel feeOn-time76%
LEVELCheapest$405Average$639FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$408Average$527FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$412Average$588FlexibilityNo cancel feeOn-time67%
Aer LingusCheapest$437Average$617FlexibilityNo cancel feeOn-timeN/A
Azores AirlinesCheapest$478Average$840FlexibilityNo cancel feeOn-time74%
British AirwaysCheapest$485Average$636FlexibilityNo cancel feeOn-time70%

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