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Cheap flights from Boston to Lisbon from C$ 502

BOS — LIS
27 Oct — 3 Nov1
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 Thursday or Wednesday 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

Thu 19/115:45 a.m. -
1 stop22h 35m
Wed 25/1111:20 a.m. -
2 stops31h 55m
Deal found 22/9C$ 963
Fri 27/1112:00 p.m. -
1 stop15h 00m
Fri 4/1210:55 a.m. -
Nonstop7h 44m
Deal found 22/9C$ 964
Fri 27/113:30 p.m. -
1 stop12h 50m
Fri 4/1211:20 a.m. -
1 stop12h 42m
Deal found 22/9C$ 967
Thu 29/1012:00 p.m. -
2 stops18h 20m
Thu 12/1112:35 p.m. -
1 stop12h 45m
Deal found 22/9C$ 969
Thu 26/112:40 p.m. -
1 stop14h 40m
Thu 3/128:55 a.m. -
1 stop17h 33m
Deal found 22/9C$ 970
Mon 26/103:30 p.m. -
1 stop14h 40m
Sat 14/116:00 a.m. -
1 stop17h 35m
Deal found 22/9C$ 971
Thu 5/119:35 p.m. -
Nonstop6h 20m
Wed 25/1110:00 a.m. -
1 stop13h 59m
Deal found 23/9C$ 973
Sat 31/1010:40 p.m. -
Nonstop6h 20m
Tue 24/115:00 a.m. -
1 stop14h 13m
Deal found 23/9C$ 974
Fri 23/105:50 a.m. -
1 stop22h 30m
Wed 28/106:00 a.m. -
1 stop17h 35m
Deal found 25/9C$ 976
Wed 28/107:20 a.m. -
2 stops19h 35m
Fri 6/116:00 a.m. -
1 stop17h 35m
Deal found 23/9C$ 977
Thu 5/119:00 a.m. -
1 stop18h 10m
Mon 9/1110:15 a.m. -
1 stop12h 29m
Deal found 24/9C$ 978
Thu 26/113:00 p.m. -
1 stop12h 00m
Tue 1/125:30 a.m. -
1 stop13h 52m
Deal found 23/9C$ 980

Find flight deals from Boston to Lisbon

Round-trip from

C$ 963

One-way from

C$ 502

Popular in

June

Cheapest in

February

Average price

C$ 1,285

Good round-trip deal

C$ 1,114 or less

Good one-way deal

C$ 525 or less
United Airlines
  • United Airlines
  • 19/11-25/11
  • 3 total stops
  • 54h 30m total
  • Boston to Lisbon
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TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 1/1-31/12
  • Nonstop
  • 6h 35m total
  • Boston to Lisbon
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Highest demand for flights based on searches. 18% potential increase in price (C$ 382 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 45 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

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Price

Cheapest round-trip
Quickest round-trip

BostonLisbon

BOS Boston Logan Intl - LIS Lisbon Humberto Delgado

BOSLIS

Boston Logan Intl

Tue 10/11

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$ 585

BostonLisbon

BOS Boston Logan Intl - LIS Lisbon Humberto Delgado

BOSLIS

Boston Logan Intl

Wed 25/11

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$ 677

BostonLisbon

BOS Boston Logan Intl - LIS Lisbon Humberto Delgado

BOSLIS

Boston Logan Intl

Sun 3/1

9:30 p.m.-8:55 a.m.

Nonstop6h 25m

Lisbon Humberto Delgado

Wed 31/12

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

Nonstop0h 00m

C$ 677

BostonLisbon

BOS Boston Logan Intl - LIS Lisbon Humberto Delgado

BOSLIS

Boston Logan Intl

Tue 29/12

5:00 p.m.-10:05 a.m.

2 stops12h 05m

Lisbon Humberto Delgado

Wed 31/12

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

Nonstop0h 00m

C$ 683

BostonLisbon

BOS Boston Logan Intl - LIS Lisbon Humberto Delgado

BOSLIS

Boston Logan Intl

Sun 27/12

5:45 a.m.-8:10 a.m.

2 stops21h 25m

Lisbon Humberto Delgado

Wed 31/12

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

Nonstop0h 00m

C$ 683

BostonLisbon

BOS Boston Logan Intl - LIS Lisbon Humberto Delgado

BOSLIS

Boston Logan Intl

Sat 26/12

9:35 p.m.-9:00 a.m.

Nonstop6h 25m

Lisbon Humberto Delgado

Wed 31/12

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

Nonstop0h 00m

C$ 748

BostonLisbon

BOS Boston Logan Intl - LIS Lisbon Humberto Delgado

BOSLIS

Boston Logan Intl

Thu 24/12

9:30 p.m.-8:55 a.m.

Nonstop6h 25m

Lisbon Humberto Delgado

Wed 31/12

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

Nonstop0h 00m

C$ 748

BostonLisbon

BOS Boston Logan Intl - LIS Lisbon Humberto Delgado

BOSLIS

Boston Logan Intl

Fri 4/12

1:37 p.m.-8:00 a.m.

1 stop13h 23m

Lisbon Humberto Delgado

Wed 31/12

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

Nonstop0h 00m

C$ 754

BostonLisbon

BOS Boston Logan Intl - LIS Lisbon Humberto Delgado

BOSLIS

Boston Logan Intl

Thu 31/12

5:45 a.m.-8:10 a.m.

2 stops21h 25m

Lisbon Humberto Delgado

Wed 31/12

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

Nonstop0h 00m

C$ 754

BostonLisbon

BOS Boston Logan Intl - LIS Lisbon Humberto Delgado

BOSLIS

Boston Logan Intl

Wed 23/12

7:40 p.m.-8:10 a.m.

1 stop31h 30m

Lisbon Humberto Delgado

Wed 31/12

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

Nonstop0h 00m

C$ 771

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/9

Showing 1-10 of 23 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$ 937). Flying from Boston to Lisbon in June is currently the most expensive (average of C$ 1,547). 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$ 1,000 and C$ 1,290 in November.
The cheapest round-trip price found within the last 5 days was C$ 963 on United Airlines (19 Nov-25 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$ 980, United Airlines can have you in Lisbon from Boston in 6h 20m. The distance from Boston to Lisbon is about 5121 km. This flight may include one or multiple stops.

  • 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 (80%), airBaltic (77%), JetBlue (77%).

  • What are the cheapest flights from Boston to Lisbon?

    While on average a flight from Boston to Lisbon is generally C$ 865, our data shows the cheapest flight currently is C$ 525. When looking at the most popular route, (Boston Logan Intl - Lisbon Humberto Delgado), you can expect to pay C$ 1,056 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$ 937). Flying from Boston to Lisbon in June is currently the most expensive (average of C$ 1,547). 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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