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Cheap flights from Boston to Lisbon from £259

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 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LIS
2 May — 9 May1
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 November, booked 85 days in advance, depart on a Saturday or Thursday and return on a Wednesday

Cheap 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 2 April 2026.

Tue 15/921:50
BOS
-
LIS
1 stop36h 45m
Turkish Airlines
Wed 30/910:55
LIS
-
BOS
1 stop38h 00m
Turkish Airlines
Deal found 29/3£457
Mon 28/921:50
BOS
-
LIS
1 stop20h 45m
Turkish Airlines
Wed 7/1005:55
LIS
-
BOS
1 stop19h 00m
Turkish Airlines
Deal found 31/3£457
Fri 1/522:50
BOS
-
LIS
1 stop16h 45m
LEVEL
Tue 5/521:15
LIS
-
BOS
1 stop28h 50m
LEVEL
Deal found 28/3£458
Mon 28/923:00
BOS
-
LIS
1 stop14h 25m
LEVEL
Mon 12/1017:45
LIS
-
BOS
1 stop32h 30m
LEVEL
Deal found 29/3£461
Sun 8/1117:35
BOS
-
LIS
1 stop17h 30m
Scandinavian Airlines
Thu 12/1116:55
LIS
-
BOS
1 stop27h 45m
Scandinavian Airlines
Deal found 30/3£464
Wed 7/1021:50
BOS
-
LIS
1 stop36h 55m
Turkish Airlines
Tue 13/1010:55
LIS
-
BOS
1 stop38h 00m
Turkish Airlines
Deal found 1/4£465
Mon 5/1023:00
BOS
-
LIS
1 stop28h 30m
LEVEL
Mon 12/1017:45
LIS
-
BOS
1 stop32h 30m
LEVEL
Deal found 28/3£466
Mon 4/522:50
BOS
-
LIS
1 stop28h 40m
LEVEL
Mon 11/521:20
LIS
-
BOS
1 stop28h 45m
LEVEL
Deal found 29/3£471
Tue 8/917:40
BOS
-
LIS
1 stop16h 55m
Scandinavian Airlines
Wed 30/907:15
LIS
-
BOS
2 stops20h 21m
Scandinavian Airlines
Deal found 30/3£477
Tue 29/917:40
BOS
-
LIS
1 stop16h 55m
Scandinavian Airlines
Fri 30/1006:55
LIS
-
BOS
1 stop13h 45m
Scandinavian Airlines
Deal found 29/3£479
Tue 28/422:50
BOS
-
LIS
1 stop13h 20m
LEVEL
Tue 12/517:45
LIS
-
BOS
1 stop32h 20m
LEVEL
Deal found 29/3£480

Find 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 2 April 2026.

Round-trip from

£457

One-way from

£259

Popular in

June

Cheapest in

February

Average price

£614
Turkish Airlines
  • Turkish Airlines
  • 15/9-30/9
  • 2 total stops
  • 74h 45m total
  • Boston to Lisbon
Search Deals
LEVEL
  • LEVEL
  • 8/8
  • 1 total stop
  • 16h 35m total
  • Boston to Lisbon
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£66 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 2 April 2026.
Use the filters below to find and compare flights from Boston to Lisbon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Mon 28/9

21:50-23:35

1 stop20h 45m

Lisbon Humberto Delgado

Wed 7/10

05:55-19:55

1 stop19h 00m

£457

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Sun 3/5

23:25-10:45

Nonstop6h 20m

Lisbon Humberto Delgado

Sun 10/5

05:00-13:16

1 stop13h 16m

£641

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Thu 13/8

17:40-22:05

2 stops23h 25m

Lisbon Humberto Delgado

Wed 19/8

07:15-15:35

1 stop13h 20m

£740

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Mon 20/4

23:25-10:45

Nonstop6h 20m

Lisbon Humberto Delgado

Thu 30/4

12:45-15:21

Nonstop7h 36m

£746

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Fri 24/4

23:25-10:45

Nonstop6h 20m

Lisbon Humberto Delgado

Fri 8/5

12:45-15:15

Nonstop7h 30m

£783

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Mon 13/7

17:05-08:00

1 stop9h 55m

Lisbon Humberto Delgado

Thu 13/8

12:45-15:15

Nonstop7h 30m

£787

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Wed 5/8

19:10-14:55

1 stop14h 45m

Lisbon Humberto Delgado

Fri 21/8

05:35-13:39

1 stop13h 04m

£813

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Wed 1/7

06:06-19:15

2 stops32h 09m

Lisbon Humberto Delgado

Tue 14/7

07:40-23:08

2 stops20h 28m

£825
Fastest return journey

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Sat 11/7

23:25-10:45

Nonstop6h 20m

Lisbon Humberto Delgado

Tue 21/7

12:45-15:10

Nonstop7h 25m

£836

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Sat 1/8

11:00-08:00

1 stop16h 00m

Lisbon Humberto Delgado

Wed 26/8

12:45-15:15

Nonstop7h 30m

£840

Flights are sorted by cheapest return flights first.

Deals found on 29/3

Showing 1-10 of 24 resultsSorted by cheapest first
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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 13 March 2026.

The best time to book flights from Boston to Lisbon is 85 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, July is the cheapest month in which you can book a flight from Boston to Lisbon (average of £234). Flying from Boston to Lisbon in June is currently the most expensive (average of £448). 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 2 April 2026.

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.

How much does it cost for a return flight from Boston to Lisbon?

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, 6 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 6h 20m. Fly via Scandinavian Airlines, KLM, or Delta 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 Emirates (90%), JetBlue (89%) or KLM (66%) when booking your flight. These represent the most reliable airlines when flying from Boston to Lisbon.

  • 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, July is the cheapest month in which you can book a flight from Boston to Lisbon (average of £234). Flying from Boston to Lisbon in June is currently the most expensive (average of £448). 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
Oeiras
Setúbal
Fátima
Madeira
Estoril
Óbidos
Almada
Beja
Sintra
Costa da Caparica
Nazaré
Sesimbra
Peniche

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

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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