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Cheap flights from Boston to Lisbon from C$ 729

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LIS
30 Apr — 7 May1
1 adult

Cheapflights Tip: The best prices from Boston Logan Intl to Lisbon Humberto Delgado are usually found in February or January, booked 87 days in advance, depart on a Thursday or Saturday and return on a Tuesday

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 25 April 2025.

Round-trip from

C$ 793

Popular in

June

Cheapest in

February

Average price

C$ 1,168

Good round-trip deal

C$ 998 or less

Good one-way deal

C$ 340 or less
26/8-2/9
  • 26/8-2/9
  • 3 total stops
  • 42h 30m total
  • Boston to Lisbon
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Highest demand for flights based on searches. 16% potential increase in price (C$ 320 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 58 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Boston Logan Intl to Lisbon Humberto Delgado.
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Price to beat on a one-way flight from Boston Logan Intl to Lisbon Humberto Delgado.
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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 25 April 2025.

Thu 4/125:35 p.m.BOS - LIS
1 stop17h 30mScandinavian Airlines
Mon 9/24:55 p.m.LIS - BOS
1 stop27h 55mScandinavian Airlines
Deal found 25/4C$ 729
Sat 29/118:00 p.m.BOS - LIS
1 stop19h 20mIcelandair
Thu 12/29:20 p.m.LIS - BOS
1 stop25h 25mIcelandair
Deal found 25/4C$ 790
Tue 26/85:40 p.m.BOS - LIS
2 stops19h 00mMultiple Airlines
Tue 2/99:05 p.m.LIS - BOS
1 stop23h 30mMultiple Airlines
Deal found 25/4C$ 793
Fri 28/119:35 p.m.BOS - LIS
Nonstop6h 25mDelta
Sat 7/210:00 a.m.LIS - BOS
1 stop14h 25mDelta
Deal found 25/4C$ 831
Mon 1/125:00 p.m.BOS - LIS
1 stop10h 00mKLM
Tue 10/210:00 a.m.LIS - BOS
1 stop13h 27mKLM
Deal found 25/4C$ 832
Wed 13/86:10 p.m.BOS - LIS
Nonstop6h 30mTAP AIR PORTUGAL
Wed 20/811:45 a.m.LIS - BOS
Nonstop7h 35mTAP AIR PORTUGAL
Deal found 25/4C$ 879
Wed 30/75:50 a.m.BOS - LIS
1 stop22h 30mUnited Airlines
Wed 17/911:25 a.m.LIS - BOS
2 stops35h 22mUnited Airlines
Deal found 25/4C$ 896
Thu 15/55:05 p.m.BOS - LIS
1 stop19h 15mSWISS
Sun 18/55:55 a.m.LIS - BOS
1 stop14h 30mSWISS
Deal found 25/4C$ 942
Thu 15/58:05 p.m.BOS - LIS
1 stop20h 45mLufthansa
Sat 24/56:15 a.m.LIS - BOS
1 stop16h 25mLufthansa
Deal found 25/4C$ 950
Thu 23/107:40 p.m.BOS - LIS
1 stop14h 45mBritish Airways
Mon 27/107:05 a.m.LIS - BOS
1 stop11h 55mBritish Airways
Deal found 25/4C$ 1,032
Mon 12/58:05 p.m.BOS - LIS
2 stops17h 55mBrussels Airlines
Wed 21/512:05 p.m.LIS - BOS
2 stops34h 35mBrussels Airlines
Deal found 25/4C$ 1,037
Thu 8/55:10 p.m.BOS - LIS
2 stops25h 20mAustrian Airlines
Thu 15/57:30 a.m.LIS - BOS
2 stops35h 20mAustrian Airlines
Deal found 24/4C$ 1,044

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 629,999 searches. Data last updated 25 April 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

Tue 26/8

5:40 p.m.-5:40 p.m.

2 stops19h 00m

Lisbon Humberto Delgado

Tue 2/9

9:05 p.m.-3:35 p.m.

1 stop23h 30m

C$ 793

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Mon 20/10

5:40 p.m.-8:40 p.m.

1 stop22h 00m

Lisbon Humberto Delgado

Mon 27/10

4:55 p.m.-10:29 p.m.

2 stops33h 34m

C$ 814

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Wed 13/8

6:10 p.m.-5:40 a.m.

Nonstop6h 30m

Lisbon Humberto Delgado

Wed 20/8

11:45 a.m.-2:20 p.m.

Nonstop7h 35m

C$ 879

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Mon 20/10

11:25 p.m.-10:45 a.m.

Nonstop6h 20m

Lisbon Humberto Delgado

Fri 31/10

11:15 a.m.-3:20 p.m.

Nonstop8h 05m

C$ 881

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Wed 22/10

5:00 p.m.-8:00 a.m.

1 stop10h 00m

Lisbon Humberto Delgado

Tue 28/10

5:00 a.m.-2:20 p.m.

1 stop13h 20m

C$ 894

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Wed 30/7

5:50 a.m.-9:20 a.m.

1 stop22h 30m

Lisbon Humberto Delgado

Wed 17/9

11:25 a.m.-5:47 p.m.

2 stops35h 22m

C$ 896

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Wed 14/5

11:35 p.m.-9:20 p.m.

1 stop16h 45m

Lisbon Humberto Delgado

Thu 5/6

10:20 p.m.-11:35 a.m.

1 stop18h 15m

C$ 923

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Thu 15/5

5:05 p.m.-5:20 p.m.

1 stop19h 15m

Lisbon Humberto Delgado

Sun 18/5

5:55 a.m.-3:25 p.m.

1 stop14h 30m

C$ 942

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Thu 15/5

8:05 p.m.-9:50 p.m.

1 stop20h 45m

Lisbon Humberto Delgado

Sat 24/5

6:15 a.m.-5:40 p.m.

1 stop16h 25m

C$ 950

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Mon 12/5

8:05 p.m.-7:00 p.m.

2 stops17h 55m

Lisbon Humberto Delgado

Wed 21/5

12:05 p.m.-5:40 p.m.

2 stops34h 35m

C$ 1,037

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/4

Showing 1-10 of 22 results
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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 18 April 2025.

The price you pay for your flight from Boston to Lisbon may vary depending on when you book. For the best chance of a lower fare, look to book 87 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 C$ 482). Flying from Boston to Lisbon in July is currently the most expensive (average of C$ 795). 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 25 April 2025.

It’s typically best to fly out from Boston to Lisbon at noon. Doing so could potentially save you 17% on the flight price compared to flying in the morning, which is usually more expensive.

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 25 April 2025.

The most flights from BOS to LIS are scheduled on a Wednesday (9 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Lisbon by month

Plan your trip to Lisbon by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Lisbon ranges from 6.0 - 122.0 mm per month. December is typically the wettest month, when rainfall can reach 122.0 mm. July is typically the driest time to visit Lisbon when rainfall is around 6.0 mm.

Temperature in Lisbon by month

Plan your trip to Lisbon by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Lisbon, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

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 25 April 2025.
Read reviews from past customers who have flown Delta, KLM and Austrian Airlines from Boston to Lisbon. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,920 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
7,920 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very good
7,920 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,582 reviews
Delta
8.0
Very good
7,920 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Cathay Pacific
7.5
Good
851 reviews
Delta
8.0
Very good
7,920 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    Booking a flight from Boston Logan Intl (BOS) to Lisbon Humberto Delgado (LIS) is your only option if you wish to fly from Boston to Lisbon. On a typical day, there are 7 flights from Logan Intl to Humberto Delgado, all of which are around 6h 20m for a nonstop flight. You can also purchase a plane ticket from 1 airline when you book a flight from Logan Intl to Lisbon.

  • How popular is this Boston to Lisbon flight route?

    The Boston Logan Intl to Lisbon Humberto Delgado flight path was viewed by 29 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Scandinavian Airlines, at C$ 814, was found to be the cheapest airline from Boston to Lisbon.Alternate airlines to your destination round-trip include TAP AIR PORTUGAL and Delta. Scandinavian Airlines is currently priced 29% below the average price you’ll pay for this route.

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

    To fly one-way, consider booking your trip with Brussels Airlines, which is currently one of the cheapest options available, starting at C$ 833. United Airlines flights start at C$ 854 while deals on Air Europa start at C$ 860 one-way.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Boston to Lisbon on time: KLM (87%), Air France (87%), Delta (87%).

  • What are the cheapest flights from Boston to Lisbon?

    While on average a flight from Boston to Lisbon is generally C$ 738, our data shows the cheapest flight currently is C$ 292. When looking at the most popular route, (Boston Logan Intl - Lisbon Humberto Delgado), you can expect to pay C$ 914 for that flight.

  • 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 C$ 482). Flying from Boston to Lisbon in July is currently the most expensive (average of C$ 795). 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

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Sintra
Costa da Caparica
Óbidos
Beja

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Top airline flying from Boston to Lisbon

Discover the top airline 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 629,999 searches. Data last updated 25 April 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapestC$ 678AverageC$ 1,104FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Boston to Lisbon?

Cheapflights makes it easy to find Boston to Lisbon flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Boston to Lisbon?

Cheapflights helps you find that perfect flight to Lisbon from Boston by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Boston to Lisbon with no change fees?

Certainly. Search results for flights to Lisbon from Boston shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Boston to Lisbon become cheaper?

Not ready to book yet? You can track prices for flights from Boston to Lisbon on Cheapflights with our Price Alert feature and get notified when better prices are available.

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