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Cheap flights from Boston to Lisbon from C$ 460

BOS — LIS
10 Oct — 17 Oct1
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 15 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Boston to Lisbon

Enter your travel dates to find the best prices.

Cheapest flights from Boston to Lisbon

Wed 14/107:05 p.m. -
1 stop11h 00m
Sat 21/116:00 a.m. -
1 stop17h 35m
Deal found 8/9C$ 951
Sat 17/108:25 p.m. -
1 stop30h 55m
Sat 21/1110:15 a.m. -
1 stop12h 30m
Deal found 8/9C$ 953
Wed 11/1110:40 a.m. -
1 stop15h 15m
Tue 17/1112:50 p.m. -
2 stops35h 07m
Deal found 7/9C$ 954
Tue 3/116:35 p.m. -
1 stop31h 20m
Fri 20/1111:20 a.m. -
2 stops30h 06m
Deal found 10/9C$ 955
Thu 5/113:41 p.m. -
1 stop11h 29m
Sun 15/1110:40 a.m. -
2 stops31h 51m
Deal found 8/9C$ 957
Mon 19/108:25 p.m. -
1 stop30h 55m
Tue 17/1112:50 p.m. -
1 stop26h 13m
Deal found 7/9C$ 958
Sat 17/108:25 p.m. -
2 stops31h 55m
Fri 20/1111:20 a.m. -
2 stops30h 06m
Deal found 7/9C$ 961
Tue 27/103:41 p.m. -
2 stops14h 24m
Tue 17/1112:50 p.m. -
2 stops35h 07m
Deal found 7/9C$ 962
Sat 17/1011:25 p.m. -
Nonstop6h 20m
Mon 16/1111:15 a.m. -
Nonstop7h 44m
Deal found 7/9C$ 964
Wed 14/105:45 a.m. -
1 stop23h 45m
Mon 23/1111:20 a.m. -
1 stop28h 02m
Deal found 7/9C$ 965
Sat 24/1012:36 p.m. -
1 stop15h 34m
Mon 2/113:35 p.m. -
1 stop33h 45m
Deal found 5/9C$ 966
Fri 6/117:05 p.m. -
2 stops32h 50m
Sun 13/1210:40 a.m. -
2 stops28h 59m
Deal found 6/9C$ 968

Find flight deals from Boston to Lisbon

Round-trip from

C$ 951

One-way from

C$ 460

Popular in

June

Cheapest in

February

Average price

C$ 1,235

Good round-trip deal

C$ 980 or less

Good one-way deal

C$ 462 or less
United Airlines
  • United Airlines
  • 14/10-21/11
  • 2 total stops
  • 28h 35m total
  • Boston to Lisbon
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JetBlue
  • JetBlue
  • 9/11-31/12
  • 1 total stop
  • 14h 45m total
  • Boston to Lisbon
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (C$ 370 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 43 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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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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Cheapflights Fare Finder

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

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Route

Depart

Return

Price

Cheapest round-trip

BostonLisbon

BOS Boston Logan Intl - LIS Lisbon Humberto Delgado

BOSLIS

Boston Logan Intl

Thu 3/12

7:10 p.m.-6:05 p.m.

1 stop17h 55m

Lisbon Humberto Delgado

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 460
Quickest round-trip

BostonLisbon

BOS Boston Logan Intl - LIS Lisbon Humberto Delgado

BOSLIS

Boston Logan Intl

Tue 13/10

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

Nonstop6h 20m

Lisbon Humberto Delgado

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 571

BostonLisbon

BOS Boston Logan Intl - LIS Lisbon Humberto Delgado

BOSLIS

Boston Logan Intl

Mon 5/10

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

Nonstop6h 20m

Lisbon Humberto Delgado

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 571

BostonLisbon

BOS Boston Logan Intl - LIS Lisbon Humberto Delgado

BOSLIS

Boston Logan Intl

Wed 4/11

9:40 p.m.-9:00 a.m.

Nonstop6h 20m

Lisbon Humberto Delgado

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 571

BostonLisbon

BOS Boston Logan Intl - LIS Lisbon Humberto Delgado

BOSLIS

Boston Logan Intl

Tue 20/10

2:15 p.m.-8:20 a.m.

2 stops13h 05m

Lisbon Humberto Delgado

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 576

BostonLisbon

BOS Boston Logan Intl - LIS Lisbon Humberto Delgado

BOSLIS

Boston Logan Intl

Thu 15/10

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

Nonstop6h 20m

Lisbon Humberto Delgado

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 640

BostonLisbon

BOS Boston Logan Intl - LIS Lisbon Humberto Delgado

BOSLIS

Boston Logan Intl

Sat 17/10

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

Nonstop6h 20m

Lisbon Humberto Delgado

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 640

BostonLisbon

BOS Boston Logan Intl - LIS Lisbon Humberto Delgado

BOSLIS

Boston Logan Intl

Sat 10/10

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

Nonstop6h 20m

Lisbon Humberto Delgado

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 654

BostonLisbon

BOS Boston Logan Intl - LIS Lisbon Humberto Delgado

BOSLIS

Boston Logan Intl

Sat 10/10

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

Nonstop6h 20m

Lisbon Humberto Delgado

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 654

BostonLisbon

BOS Boston Logan Intl - LIS Lisbon Humberto Delgado

BOSLIS

Boston Logan Intl

Wed 30/12

9:20 p.m.-8:40 a.m.

Nonstop6h 20m

Lisbon Humberto Delgado

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 660

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/9

Showing 1-10 of 22 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 round-trip price

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?

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 14 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, February is the cheapest month in which you can book a flight from Boston to Lisbon (average of C$ 902). Flying from Boston to Lisbon in June is currently the most expensive (average of C$ 1,510). 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?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Boston to Lisbon as you normally would.

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

Airfare is below average for this route at the moment.

Boston to Lisbon flights typically cost between C$ 1,067 and C$ 1,519 in October.
The cheapest round-trip price found within the last 5 days was C$ 951 on United Airlines (14 Oct-21 Nov).

Related info for your journey

  • How popular is this Boston to Lisbon flight route?

    The Boston Logan Intl to Lisbon Humberto Delgado flight path was viewed by 5 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Boston to Lisbon?

    For as low as C$ 954, United Airlines can have you in Lisbon from Boston in 14h 10m. The distance from Boston to Lisbon is about 5121 km.

  • 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: Emirates (77%), JetBlue (73%), TAP AIR PORTUGAL (73%).

  • What are the cheapest flights from Boston to Lisbon?

    While on average a flight from Boston to Lisbon is generally C$ 884, our data shows the cheapest flight currently is C$ 462. When looking at the most popular route, (Boston Logan Intl - Lisbon Humberto Delgado), you can expect to pay C$ 1,030 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, February is the cheapest month in which you can book a flight from Boston to Lisbon (average of C$ 902). Flying from Boston to Lisbon in June is currently the most expensive (average of C$ 1,510). 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
Fátima
Sintra
Óbidos
Estoril
Costa da Caparica
Setúbal

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