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Cheap flights from Boston to Lisbon from C$ 795

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 30/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LIS
2 Apr — 9 Apr1
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 28 March 2025.

Round-trip from

C$ 845

Popular in

June

Cheapest in

February

Average price

C$ 999

Good one-way deal

C$ 464 or less
26/8-2/9
  • 26/8-2/9
  • 3 total stops
  • 40h 50m total
  • Boston to Lisbon
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Highest demand for flights based on searches. 18% potential increase in price (C$ 395 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease (C$ 68 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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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 28 March 2025.

Sun 30/37:15 p.m.BOS - LIS
1 stop20h 25mPLAY
Fri 4/49:40 p.m.LIS - BOS
1 stop25h 10mPLAY
Deal found 27/3C$ 795
Tue 26/85:40 p.m.BOS - LIS
2 stops17h 20mMultiple Airlines
Tue 2/99:05 p.m.LIS - BOS
1 stop23h 30mMultiple Airlines
Deal found 27/3C$ 845
Thu 25/99:20 p.m.BOS - LIS
1 stop13h 45mIberia
Tue 21/108:25 a.m.LIS - BOS
1 stop11h 35mIberia
Deal found 27/3C$ 893
Sat 16/88:50 p.m.BOS - LIS
1 stop19h 30mIcelandair
Sun 31/810:25 p.m.LIS - BOS
1 stop28h 35mIcelandair
Deal found 27/3C$ 899
Wed 1/108:10 p.m.BOS - LIS
1 stop22h 00mFinnair
Sat 18/106:35 a.m.LIS - BOS
1 stop13h 25mFinnair
Deal found 28/3C$ 900
Sat 19/411:25 p.m.BOS - LIS
Nonstop6h 20mKLM
Mon 28/412:45 p.m.LIS - BOS
Nonstop7h 35mKLM
Deal found 27/3C$ 906
Sat 19/411:25 p.m.BOS - LIS
Nonstop6h 20mDelta
Mon 28/412:45 p.m.LIS - BOS
Nonstop7h 35mDelta
Deal found 27/3C$ 910
Wed 26/115:40 p.m.BOS - LIS
2 stops23h 30mScandinavian Airlines
Sun 30/116:55 p.m.LIS - BOS
1 stop25h 55mScandinavian Airlines
Deal found 27/3C$ 925
Tue 29/47:40 p.m.BOS - LIS
1 stop13h 45mBritish Airways
Mon 5/511:05 a.m.LIS - BOS
1 stop13h 22mBritish Airways
Deal found 27/3C$ 932
Wed 17/97:25 p.m.BOS - LIS
1 stop31h 35mAir France
Fri 10/1012:45 p.m.LIS - BOS
Nonstop7h 45mAir France
Deal found 27/3C$ 1,009
Thu 4/99:35 p.m.BOS - LIS
1 stop36h 40mTurkish Airlines
Tue 16/94:45 p.m.LIS - BOS
1 stop31h 55mTurkish Airlines
Deal found 28/3C$ 1,022
Wed 14/510:40 p.m.BOS - LIS
Nonstop6h 30mTAP AIR PORTUGAL
Sun 18/51:55 p.m.LIS - BOS
1 stop11h 45mTAP AIR PORTUGAL
Deal found 27/3C$ 1,055

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 28 March 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.-4:00 p.m.

2 stops17h 20m

Lisbon Humberto Delgado

Tue 2/9

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

1 stop23h 30m

C$ 845

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Sat 16/8

8:50 p.m.-9:20 p.m.

1 stop19h 30m

Lisbon Humberto Delgado

Sun 31/8

10:25 p.m.-10:00 p.m.

1 stop28h 35m

C$ 899

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Sat 19/4

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

Nonstop6h 20m

Lisbon Humberto Delgado

Mon 28/4

12:45 p.m.-3:20 p.m.

Nonstop7h 35m

C$ 906

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Sat 19/4

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

Nonstop6h 20m

Lisbon Humberto Delgado

Mon 28/4

12:45 p.m.-3:20 p.m.

Nonstop7h 35m

C$ 910

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Tue 29/4

7:40 p.m.-2:25 p.m.

1 stop13h 45m

Lisbon Humberto Delgado

Mon 5/5

11:05 a.m.-7:27 p.m.

1 stop13h 22m

C$ 932

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Thu 22/5

7:15 p.m.-8:20 p.m.

1 stop20h 05m

Lisbon Humberto Delgado

Mon 26/5

9:25 p.m.-5:50 p.m.

1 stop25h 25m

C$ 956

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Wed 27/8

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

2 stops23h 30m

Lisbon Humberto Delgado

Fri 26/9

6:55 a.m.-3:35 p.m.

1 stop13h 40m

C$ 986

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Wed 17/9

7:25 p.m.-8:00 a.m.

1 stop31h 35m

Lisbon Humberto Delgado

Fri 10/10

12:45 p.m.-3:30 p.m.

Nonstop7h 45m

C$ 1,009

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Thu 4/9

9:35 p.m.-3:15 p.m.

1 stop36h 40m

Lisbon Humberto Delgado

Tue 16/9

4:45 p.m.-7:40 p.m.

1 stop31h 55m

C$ 1,022

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Wed 14/5

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

Nonstop6h 30m

Lisbon Humberto Delgado

Sun 18/5

1:55 p.m.-8:40 p.m.

1 stop11h 45m

C$ 1,055

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/3

Showing 1-10 of 20 results
1
2

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 21 March 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$ 803). 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 28 March 2025.

It’s typically best to fly out from Boston to Lisbon at noon. Doing so could potentially save you 16% on the flight price compared to flying in the morning, which is usually more expensive.

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 28 March 2025.
Delta
8.0
Very good
7,896 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

8.0

Entertainment

7.9

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
7,896 reviews
Delta
8.0
Very good
7,896 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

8.0

Entertainment

7.9

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
1,321 reviews
Delta
8.0
Very good
7,896 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

8.0

Entertainment

7.9

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
837 reviews
Delta
8.0
Very good
7,896 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

8.0

Entertainment

7.9

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.
Air France
7.4
Good
1,424 reviews
Delta
8.0
Very good
7,896 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

8.0

Entertainment

7.9

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.
United Airlines
7.4
Good
8,603 reviews
Delta
8.0
Very good
7,896 reviews
Check prices

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

8.0

Entertainment

7.9

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 is 1 flight from Logan Intl to Humberto Delgado, all of which are around 6h 25m 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 27 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?

    Icelandair, at C$ 899, was found to be the cheapest airline from Boston to Lisbon.Alternate airlines to your destination round-trip include KLM and Delta. Icelandair is currently priced 25% 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 KLM, which is currently one of the cheapest options available, starting at C$ 1,071. United Airlines flights start at C$ 1,079 while deals on Air Canada start at C$ 1,083 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 (83%), Air France (83%), Delta (83%).

  • What are the cheapest flights from Boston to Lisbon?

    While on average a flight from Boston to Lisbon is generally C$ 551, our data shows the cheapest flight currently is C$ 382. When looking at the most popular route, (Boston Logan Intl - Lisbon Humberto Delgado), you can expect to pay C$ 899 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$ 803). 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
Setúbal
Óbidos
Beja
Costa da Caparica

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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 28 March 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapestC$ 699AverageC$ 1,328FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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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