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Cheap flights from Boston to Lisbon from £247

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 29/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LIS
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

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 Wednesday 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 31 October 2025.

Round-trip from

£368

One-way from

£247

Popular in

June

Cheapest in

February

Average price

£549

Good one-way deal

£233 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 8/1-19/1
  • 3 total stops
  • 48h 02m total
  • Boston to Lisbon
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LEVEL
  • LEVEL
  • 29/12
  • 1 total stop
  • 28h 50m total
  • Boston to Lisbon
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£64 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
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Average for round-trip flights in October 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

Enter your travel dates to find the best prices.

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 31 October 2025.

Thu 27/1120:35BOS - LIS
Nonstop6h 25mVirgin Atlantic
Wed 3/1211:15LIS - BOS
Nonstop7h 45mVirgin Atlantic
Deal found 29/10£373
Thu 27/1108:00BOS - LIS
1 stop19h 55mDelta
Wed 3/1211:15LIS - BOS
Nonstop7h 45mDelta
Deal found 29/10£373
Thu 4/1217:00BOS - LIS
1 stop10h 55mDelta
Sun 7/1211:15LIS - BOS
Nonstop7h 45mDelta
Deal found 29/10£376
Thu 27/1120:35BOS - LIS
Nonstop6h 25mDelta
Tue 2/1211:25LIS - BOS
1 stop30h 55mDelta
Deal found 30/10£382
Thu 4/1217:00BOS - LIS
1 stop10h 55mMultiple Airlines
Tue 9/1205:30LIS - BOS
2 stops15h 41mMultiple Airlines
Deal found 30/10£392
Sun 30/1118:30BOS - LIS
1 stop11h 50mDelta
Sun 7/1210:00LIS - BOS
1 stop13h 59mDelta
Deal found 30/10£395

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 31 October 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

Thu 27/11

15:05-08:55

1 stop12h 50m

Lisbon Humberto Delgado

Wed 3/12

11:15-14:00

Nonstop7h 45m

£376

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Fri 20/2

17:00-09:00

1 stop11h 00m

Lisbon Humberto Delgado

Sat 28/2

05:30-13:40

1 stop13h 10m

£385

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Thu 27/11

15:05-08:55

1 stop12h 50m

Lisbon Humberto Delgado

Tue 2/12

11:25-13:20

1 stop30h 55m

£386

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Mon 5/1

10:03-08:00

1 stop16h 57m

Lisbon Humberto Delgado

Thu 15/1

05:30-18:30

2 stops18h 00m

£392

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Tue 17/2

17:35-16:05

1 stop17h 30m

Lisbon Humberto Delgado

Sat 28/2

07:05-15:50

1 stop13h 45m

£401

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Thu 8/1

13:28-15:50

2 stops21h 22m

Lisbon Humberto Delgado

Mon 19/1

18:10-21:53

2 stops32h 43m

£407

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Sat 21/2

08:30-16:05

2 stops26h 35m

Lisbon Humberto Delgado

Sun 1/3

19:00-15:50

1 stop25h 50m

£445

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Thu 16/4

22:50-20:35

1 stop16h 45m

Lisbon Humberto Delgado

Tue 28/4

22:10-21:05

1 stop27h 55m

£450

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Wed 18/2

21:35-17:40

1 stop15h 05m

Lisbon Humberto Delgado

Wed 25/2

12:55-19:45

1 stop11h 50m

£510

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Fri 14/11

20:35-08:00

Nonstop6h 25m

Lisbon Humberto Delgado

Sat 22/11

11:15-14:05

Nonstop7h 50m

£524

Flights are sorted by cheapest return flights first.

Deals found on 29/10

Showing 1-10 of 21 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 return 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 return flight from Boston to Lisbon. Price data was last updated on 24 October 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, February is the cheapest month in which you can book a flight from Boston to Lisbon (average of £257). Flying from Boston to Lisbon in June is currently the most expensive (average of £450). 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 31 October 2025.

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.

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.

  • How popular is this Boston to Lisbon flight route?

    Within the past month, 7 users have taken a look at flights from Boston Logan Intl to Lisbon Humberto Delgado.

  • How long is the flight from Boston to Lisbon?

    There are many flights that can get you from Boston to Lisbon in 12h 50m. Fly via Virgin Atlantic, Delta, or Scandinavian Airlines to get the fastest option. There are 3182 mi between Boston and Lisbon. This flight may include one or multiple stops.

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

    Consider JetBlue (83%), TAP AIR PORTUGAL (83%) or Emirates (83%) when booking your flight. These represent the most reliable airlines when flying from Boston to Lisbon.

  • What are the cheapest flights from Boston to Lisbon?

    While on average a flight from Boston to Lisbon is generally £323, our data shows the cheapest flight currently is £143. When looking at the most popular route, (Boston Logan Intl - Lisbon Humberto Delgado), you can expect to pay £718 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 holiday 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 £257). Flying from Boston to Lisbon in June is currently the most expensive (average of £450). 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 Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Madeira
Setúbal
Oeiras
Fátima
Estoril
Almada
Beja
Sintra
Costa da Caparica
Óbidos
Nazaré
Sesimbra
Peniche

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Need flexible booking options for your flight to Lisbon from Boston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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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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