Lisbon

$265+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LIS
ago. 2 — ago. 91
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Cheapflights Tip: The best prices from Boston Logan Intl to Lisbon Humberto Delgado are usually found in February or January, booked 56 days in advance, depart on a Tuesday or Sunday and return on a Thursday

Cheap 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 julio 28, 2025.

Round-trip from

$524
(KLM)

One-way from

$265
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$873

Good round-trip deal

$592 or less

Good one-way deal

$316 or less
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. 12% potential increase in price ($109 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
Average for round-trip flights in July 2025
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.

Find 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 julio 28, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 7/26. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/511:00 amBOS - LIS
2 stops40h 55mScandinavian Airlines
lun. 11/104:55 pmLIS - BOS
1 stop27h 55mScandinavian Airlines
Deal found 7/26$524
This United Airlines deal was found by Cheapflights users on 7/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/62:40 pmBOS - LIS
2 stops37h 40mUnited Airlines
lun. 9/1511:25 amLIS - BOS
2 stops35h 09mUnited Airlines
Deal found 7/27$525
This KLM deal was found by Cheapflights users on 7/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/205:00 pmBOS - LIS
1 stop10h 00mMultiple Airlines
lun. 10/2711:15 amLIS - BOS
Nonstop7h 50mMultiple Airlines
Deal found 7/28$526
This Delta deal was found by Cheapflights users on 7/28. 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.
lun. 12/298:35 pmBOS - LIS
Nonstop6h 25mDelta
sáb. 2/710:00 amLIS - BOS
1 stop12h 53mDelta
Deal found 7/28$527
This Air Canada deal was found by Cheapflights users on 7/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/66:55 pmBOS - LIS
2 stops33h 25mAir Canada
lun. 12/811:20 amLIS - BOS
1 stop11h 42mAir Canada
Deal found 7/26$530
This Lufthansa deal was found by Cheapflights users on 7/26. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/910:00 pmBOS - LIS
1 stop20h 30mLufthansa
mié. 10/156:15 amLIS - BOS
1 stop16h 25mLufthansa
Deal found 7/26$531
This Ovago deal was found by Cheapflights users on 7/26. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/209:20 pmBOS - LIS
1 stop17h 45mBritish Airways
sáb. 9/276:55 pmLIS - BOS
1 stop21h 20mBritish Airways
Deal found 7/26$532
This oojo deal was found by Cheapflights users on 7/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/2711:35 pmBOS - LIS
1 stop16h 45mIcelandair
dom. 9/710:25 pmLIS - BOS
1 stop18h 10mIcelandair
Deal found 7/27$534
This SWISS deal was found by Cheapflights users on 7/28. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/245:05 pmBOS - LIS
2 stops15h 40mSWISS
vie. 10/105:55 amLIS - BOS
1 stop19h 00mSWISS
Deal found 7/28$535
This Air France deal was found by Cheapflights users on 7/26. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/157:25 pmBOS - LIS
1 stop10h 50mAir France
mié. 10/2911:15 amLIS - BOS
Nonstop7h 50mAir France
Deal found 7/26$541
This Flighttix deal was found by Cheapflights users on 7/26. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/3111:25 pmBOS - LIS
Nonstop6h 20mVirgin Atlantic
mar. 9/912:45 pmLIS - BOS
Nonstop7h 35mVirgin Atlantic
Deal found 7/26$564
This Brussels Airlines deal was found by Cheapflights users on 7/28. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/188:05 pmBOS - LIS
2 stops17h 55mBrussels Airlines
vie. 8/2912:05 pmLIS - BOS
2 stops34h 35mBrussels Airlines
Deal found 7/28$573

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 julio 28, 2025.
Use the filters below to find and compare flights from Boston to Lisbon that are best for you.

Fly from

Boston

Fly to

Lisbon

Route

Depart

Return

Price

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

lun. 9/8

11:20 pm-10:45 am

Nonstop6h 25m

Lisbon Humberto Delgado

mar. 12/9

10:00 am-10:29 pm

1 stop17h 29m

$524

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

sáb. 9/6

2:40 pm-9:20 am

2 stops37h 40m

Lisbon Humberto Delgado

lun. 9/15

11:25 am-5:34 pm

2 stops35h 09m

$525

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

dom. 9/7

11:20 pm-10:45 am

Nonstop6h 25m

Lisbon Humberto Delgado

jue. 12/11

10:00 am-1:48 pm

1 stop32h 48m

$529

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

sáb. 9/6

6:55 pm-9:20 am

2 stops33h 25m

Lisbon Humberto Delgado

lun. 12/8

11:20 am-6:02 pm

1 stop11h 42m

$530

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

jue. 10/9

10:00 pm-10:05 pm

1 stop19h 05m

Lisbon Humberto Delgado

jue. 10/16

6:15 am-5:40 pm

1 stop16h 25m

$531

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

sáb. 9/20

9:20 pm-8:05 pm

1 stop17h 45m

Lisbon Humberto Delgado

sáb. 9/27

6:55 pm-11:15 am

1 stop21h 20m

$532

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

mié. 8/27

11:35 pm-9:20 pm

1 stop16h 45m

Lisbon Humberto Delgado

dom. 9/7

10:25 pm-11:35 am

1 stop18h 10m

$534

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

mié. 9/24

5:05 pm-1:45 pm

2 stops15h 40m

Lisbon Humberto Delgado

vie. 10/10

5:55 am-7:55 pm

1 stop19h 00m

$535

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

mié. 10/15

7:25 pm-11:15 am

1 stop10h 50m

Lisbon Humberto Delgado

mié. 10/29

11:15 am-3:05 pm

Nonstop7h 50m

$541

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

dom. 8/31

11:25 pm-10:45 am

Nonstop6h 20m

Lisbon Humberto Delgado

mar. 9/9

12:45 pm-3:20 pm

Nonstop7h 35m

$564

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 18 results
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The best insider tips for Boston to Lisbon flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Boston to Lisbon trip
Airports
BOS

Use the FlyLogan app for real-time flight updates and pre-order food via BOS2GO, saving time before your evening departure.

Read more about BOSby Paul Rubio
LIS

Expect long lines at immigration during peak morning and early afternoon arrivals. Plan extra time for this process.

Read more about LISby Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on LIS

Ramsey Qubein

Ramsey Qubein

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.

Read more
Paul Rubio

Paul Rubio

Expert on BOS

Paul Rubio

Paul Rubio

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.

Read more

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?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Lisbon. Price data was last updated on July 25, 2025.

The best time to book flights from Boston to Lisbon is 56 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, January is the cheapest month in which you can book a flight from Boston to Lisbon (average of $612). Flying from Boston to Lisbon in June is currently the most expensive (average of $1,129). 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 julio 28, 2025.

It’s typically best to fly out from Boston to Lisbon at noon. Doing so could potentially save you 59% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

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

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

Weekly flight availability from Boston to Lisbon

Explore weekly flight availability from Boston to Lisbon. 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 julio 28, 2025.

The most flights from BOS to LIS 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).

What’s the top layover airport for flights from Boston to Lisbon?

Share of 1-stop round-trip flights from Boston to Lisbon chosen by Cheapflights users in the past 12 months, using the same layover each way.

Madrid (MAD) – chosen by Cheapflights users on 53% of 1-stop itineraries from Boston to Lisbon on Cheapflights.

What’s the cheapest layover airport for flights from Boston to Lisbon?

Average round-trip fare for 1-stop flights from Boston to Lisbon, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $348.

What’s the fastest layover option from Boston to Lisbon?

Shortest average travel time for 1-stop one-way flights from Boston to Lisbon, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Madrid (MAD) have the shortest average one-way travel time for 1-stop routes: 2h 30m.

Which airport typically offers the quickest layover for flights from Boston to Lisbon?

Average layover duration for 1-stop one-way flights from Boston to Lisbon, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Madrid (MAD) offer the fastest connection on this route, with an average layover time of 1h 28m.

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 julio 28, 2025.
Peruse reviews from past customers who have flown with Delta, SWISS, and Azores Airlines 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.
8.0
Very good

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good
8.0
Very good

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 22 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?

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

    According to our current data, United Airlines ($525), Delta ($526), and Air Canada ($530) offers the cheapest pricing from Boston to Lisbon. United Airlines is 33% 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?

    $266 is the cheapest one-way deal found within the past few days, from LEVEL. You may also be able to find cheap deals on Iberia and Azores Airlines, with prices starting from $267 and $278, 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 KLM (63%), Air France (63%) or Delta (63%) 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 $229. On average you can expect to pay $1,605. The most popular route, (Boston Logan Intl - Lisbon Humberto Delgado), can usually be booked for $382.

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

  • What are some popular points of interest to see during a layover in Barcelona?

    The majority of Barcelona visitors spend their time at La Rambla, Sagrada Familia, and Placa de Catalunya. Travelers on a layover in Barcelona can visit La Rambla, Sagrada Familia, and Placa de Catalunya, by traveling 7.5 mi, 8.8 mi, and 7.7 mi, respectively after landing at Barcelona-El Prat. Those landing in Barcelona looking to spend some time exploring during their layover can rent a car for about $31 per day.

  • What are points of interest worth seeing during a layover in London?

    Hyde Park, Buckingham Palace, and Piccadilly Circus are currently the most popular points of interest in London. Hyde Park, Buckingham Palace, and Piccadilly Circus are located about 12.5 mi, 13.7 mi, and 14.1 mi, respectively from London Heathrow. Travelers in need of a car in London can rent one for about $51 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, January is the cheapest month in which you can book a flight from Boston to Lisbon (average of $612). Flying from Boston to Lisbon in June is currently the most expensive (average of $1,129). 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
Sintra
Oeiras
Beja
Nazaré
Ericeira
Costa da Caparica
Torres Vedras
Sesimbra
Colares

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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 julio 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
VuelingCheapest$165Average$589FlexibilityNo cancel feeOn-time88%
LEVELCheapest$218Average$510FlexibilityNo cancel feeOn-timeN/A
Azores AirlinesCheapest$322Average$629FlexibilityNo cancel feeOn-time74%
Scandinavian AirlinesCheapest$323Average$632FlexibilityNo cancel feeOn-time77%
IberiaCheapest$325Average$657FlexibilityNo cancel feeOn-time77%
PLAYCheapest$331Average$383FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$386Average$616FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$508Average$778FlexibilityNo cancel feeOn-time69%
Aer LingusCheapest$513Average$663FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$517Average$636FlexibilityNo cancel feeOn-time71%

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