Lisbon

$260+ 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 7/24. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LIS
Jul 23 — Jul 301
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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 Monday or Tuesday 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 July 18, 2025.

Round-trip from

$507
(Iberia)

One-way from

$260
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$870

Good round-trip deal

$626 or less

Good one-way deal

$330 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 ($110 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 July 18, 2025.

This Iberia deal was found by Cheapflights users on 7/16. 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.
Wed 7/301:26 pmBOS - LIS
2 stops13h 19mIberia
Wed 9/179:00 amLIS - BOS
2 stops14h 49mIberia
Deal found 7/16$507
This United Airlines deal was found by Cheapflights users on 7/15. 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.
Tue 9/28:05 pmBOS - LIS
1 stop12h 35mUnited Airlines
Wed 9/1711:25 amLIS - BOS
2 stops30h 04mUnited Airlines
Deal found 7/15$508
This Mytrip deal was found by Cheapflights users on 7/15. 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.
Sat 9/1310:20 amBOS - LIS
3 stops30h 35mMultiple Airlines
Fri 9/199:45 pmLIS - BOS
2 stops21h 45mMultiple Airlines
Deal found 7/15$513
This Ovago deal was found by Cheapflights users on 7/17. 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.
Fri 8/224:30 pmBOS - LIS
1 stop10h 15mBritish Airways
Tue 9/28:45 pmLIS - BOS
1 stop23h 15mBritish Airways
Deal found 7/17$516
This SWISS deal was found by Cheapflights users on 7/17. 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.
Sat 8/309:40 pmBOS - LIS
1 stop20h 40mSWISS
Tue 9/95:55 amLIS - BOS
1 stop19h 00mSWISS
Deal found 7/17$519
This Delta deal was found by Cheapflights users on 7/15. 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 11/28:35 pmBOS - LIS
Nonstop6h 25mDelta
Tue 11/115:00 amLIS - BOS
1 stop13h 20mDelta
Deal found 7/15$521
This Air Canada deal was found by Cheapflights users on 7/16. 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.
Thu 10/1610:20 amBOS - LIS
1 stop18h 00mAir Canada
Mon 10/206:15 amLIS - BOS
2 stops20h 10mAir Canada
Deal found 7/16$522
This Scandinavian Airlines deal was found by Cheapflights users on 7/15. 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.
Sun 11/305:35 pmBOS - LIS
2 stops23h 25mScandinavian Airlines
Sun 12/74:55 pmLIS - BOS
1 stop27h 55mScandinavian Airlines
Deal found 7/15$523
This Lufthansa deal was found by Cheapflights users on 7/17. 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.
Thu 10/910:00 pmBOS - LIS
1 stop20h 30mLufthansa
Sat 10/186:15 amLIS - BOS
1 stop16h 25mLufthansa
Deal found 7/17$530
This Kiwi.com deal was found by Cheapflights users on 7/17. 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.
Sat 8/3010:45 pmBOS - LIS
Nonstop6h 30mTAP AIR PORTUGAL
Wed 9/1011:45 amLIS - BOS
Nonstop7h 35mTAP AIR PORTUGAL
Deal found 7/17$544

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 July 18, 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

Wed 7/30

1:26 pm-7:45 am

2 stops13h 19m

Lisbon Humberto Delgado

Wed 9/17

9:00 am-6:49 pm

2 stops14h 49m

$507

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Tue 9/2

8:05 pm-1:40 pm

1 stop12h 35m

Lisbon Humberto Delgado

Wed 9/17

11:25 am-12:29 pm

2 stops30h 04m

$508

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Sat 9/13

10:20 am-9:55 pm

3 stops30h 35m

Lisbon Humberto Delgado

Fri 9/19

9:45 pm-2:30 pm

2 stops21h 45m

$513

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Fri 8/22

4:30 pm-7:45 am

1 stop10h 15m

Lisbon Humberto Delgado

Tue 9/2

8:45 pm-3:00 pm

1 stop23h 15m

$516

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Sat 8/30

9:40 pm-11:20 pm

1 stop20h 40m

Lisbon Humberto Delgado

Tue 9/9

5:55 am-7:55 pm

1 stop19h 00m

$519

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Wed 9/3

10:40 pm-10:10 am

Nonstop6h 30m

Lisbon Humberto Delgado

Thu 9/11

11:45 am-2:20 pm

Nonstop7h 35m

$521

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Thu 10/9

10:00 pm-11:30 pm

1 stop20h 30m

Lisbon Humberto Delgado

Thu 10/16

6:15 am-5:40 pm

1 stop16h 25m

$530

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Thu 7/24

11:00 pm-8:30 am

1 stop28h 30m

$260

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Mon 7/28

11:00 pm-8:35 pm

1 stop16h 35m

$262

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Wed 9/17

9:15 pm-1:05 pm

1 stop10h 50m

$278

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/16

Showing 1-10 of 11 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 11, 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 $1,128). 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 July 18, 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 July 18, 2025.

The most flights from BOS to LIS are scheduled on a Monday (9 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (2 on average).

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

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 July 18, 2025.
Peruse reviews from past customers who have flown with Azores Airlines, SWISS, and United 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.

Overall

7.5

Entertainment

5.6

Food

6.5

Comfort

7.3

Boarding

7.4

Crew

8.3

Reviews

1 / 1
8.0
Excellent

Anonymous,Feb 2025

YYZ - PDL

Hour and a half late because of weather and deicing. Assume this if you plan connections.

Overall

7.5

Entertainment

5.6

Food

6.5

Comfort

7.3

Boarding

7.4

Crew

8.3

Reviews

1 / 1
8.0
Excellent

Anonymous,Feb 2025

YYZ - PDL

Hour and a half late because of weather and deicing. Assume this if you plan connections.

Overall

7.5

Entertainment

5.6

Food

6.5

Comfort

7.3

Boarding

7.4

Crew

8.3

Reviews

1 / 1
8.0
Excellent

Anonymous,Feb 2025

YYZ - PDL

Hour and a half late because of weather and deicing. Assume this if you plan connections.

Overall

7.5

Entertainment

5.6

Food

6.5

Comfort

7.3

Boarding

7.4

Crew

8.3

Reviews

1 / 1
8.0
Excellent

Anonymous,Feb 2025

YYZ - PDL

Hour and a half late because of weather and deicing. Assume this if you plan connections.

Overall

7.5

Entertainment

5.6

Food

6.5

Comfort

7.3

Boarding

7.4

Crew

8.3

Reviews

1 / 1
8.0
Excellent

Anonymous,Feb 2025

YYZ - PDL

Hour and a half late because of weather and deicing. Assume this if you plan connections.

Overall

7.5

Entertainment

5.6

Food

6.5

Comfort

7.3

Boarding

7.4

Crew

8.3

Reviews

1 / 1
8.0
Excellent

Anonymous,Feb 2025

YYZ - PDL

Hour and a half late because of weather and deicing. Assume this if you plan connections.

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 6 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, Iberia ($507), United Airlines ($508), and British Airways ($516) offers the cheapest pricing from Boston to Lisbon. Iberia is 35% 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?

    $262 is the cheapest one-way deal found within the past few days, from Iberia. You may also be able to find cheap deals on Azores Airlines and TAP AIR PORTUGAL, with prices starting from $278 and $311, 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 $246. On average you can expect to pay $1,755. The most popular route, (Boston Logan Intl - Lisbon Humberto Delgado), can usually be booked for $290.

  • 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 London?

    The majority of London visitors spend their time at Hyde Park, Buckingham Palace, and Piccadilly Circus. Travelers on a layover in London can visit Hyde Park, Buckingham Palace, and Piccadilly Circus, by traveling 12.5 mi, 13.7 mi, and 14.1 mi, respectively after landing at London Heathrow. Those landing in London looking to spend some time exploring during their layover can rent a car for about $49 per day.

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

    La Rambla, Sagrada Familia, and Placa de Catalunya are currently the most popular points of interest in Barcelona. La Rambla, Sagrada Familia, and Placa de Catalunya are located about 7.5 mi, 8.8 mi, and 7.7 mi, respectively from Barcelona-El Prat. Travelers in need of a car in Barcelona can rent one for about $28 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 $1,128). 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 July 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$219Average$512FlexibilityNo cancel feeOn-timeN/A
VuelingCheapest$302Average$603FlexibilityNo cancel feeOn-time88%
Azores AirlinesCheapest$322Average$628FlexibilityNo cancel feeOn-time74%
Scandinavian AirlinesCheapest$323Average$632FlexibilityNo cancel feeOn-time77%
PLAYCheapest$331Average$382FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$359Average$674FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$386Average$617FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$511Average$781FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$519Average$679FlexibilityNo cancel feeOn-time71%
Aer LingusCheapest$530Average$673FlexibilityNo cancel feeOn-timeN/A

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