Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Boston to Lisbon from C$ 693

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 30/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LIS
17 Jun — 24 Jun1
1 adult

Cheapflights Tip: The best prices from Boston Logan Intl to Lisbon Humberto Delgado are usually found in February or January, booked 57 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 12 June 2025.

Round-trip from

C$ 693

Popular in

June

Cheapest in

February

Average price

C$ 1,389

Good round-trip deal

C$ 955 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 30/11-9/2
  • 3 total stops
  • 52h 09m total
  • Boston to Lisbon
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 215 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Lisbon Humberto Delgado.
Search Deals

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 12 June 2025.

Sun 30/115:35 p.m.BOS - LIS
1 stop17h 30mScandinavian Airlines
Mon 9/24:55 p.m.LIS - BOS
2 stops34h 39mScandinavian Airlines
Deal found 11/6C$ 693
Sun 30/115:35 p.m.BOS - LIS
1 stop17h 30mMultiple Airlines
Sun 7/126:10 p.m.LIS - BOS
2 stops26h 40mMultiple Airlines
Deal found 12/6C$ 704
Sat 22/118:00 p.m.BOS - LIS
1 stop19h 20mIcelandair
Thu 27/119:20 p.m.LIS - BOS
1 stop25h 25mIcelandair
Deal found 12/6C$ 807
Tue 7/106:10 p.m.BOS - LIS
Nonstop6h 30mTAP AIR PORTUGAL
Mon 13/1011:45 a.m.LIS - BOS
Nonstop7h 35mTAP AIR PORTUGAL
Deal found 11/6C$ 819
Mon 4/84:33 p.m.BOS - LIS
1 stop10h 47mUnited Airlines
Wed 3/911:25 a.m.LIS - BOS
2 stops35h 22mUnited Airlines
Deal found 12/6C$ 822
Sat 20/98:10 p.m.BOS - LIS
1 stop22h 00mFinnair
Tue 30/96:35 a.m.LIS - BOS
1 stop18h 15mFinnair
Deal found 11/6C$ 835
Wed 17/910:00 p.m.BOS - LIS
1 stop19h 05mLufthansa
Mon 13/105:05 a.m.LIS - BOS
1 stop20h 05mLufthansa
Deal found 12/6C$ 859
Sat 20/95:05 p.m.BOS - LIS
1 stop25h 15mSWISS
Sat 11/105:55 a.m.LIS - BOS
1 stop19h 00mSWISS
Deal found 11/6C$ 860
Wed 17/99:55 p.m.BOS - LIS
1 stop20h 15mBritish Airways
Sun 19/1011:00 a.m.LIS - BOS
1 stop14h 10mBritish Airways
Deal found 12/6C$ 916
Thu 18/910:00 p.m.BOS - LIS
2 stops16h 00mBrussels Airlines
Wed 24/97:55 p.m.LIS - BOS
2 stops25h 00mBrussels Airlines
Deal found 11/6C$ 950
Sun 2/119:35 p.m.BOS - LIS
Nonstop6h 25mDelta
Fri 21/1111:15 a.m.LIS - BOS
Nonstop8h 05mDelta
Deal found 11/6C$ 964

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 12 June 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

Sun 30/11

5:35 p.m.-4:05 p.m.

1 stop17h 30m

Lisbon Humberto Delgado

Mon 9/2

4:55 p.m.-10:34 p.m.

2 stops34h 39m

C$ 693

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Sun 30/11

5:35 p.m.-4:05 p.m.

1 stop17h 30m

Lisbon Humberto Delgado

Sun 7/12

6:10 p.m.-3:50 p.m.

2 stops26h 40m

C$ 704

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Sat 22/11

8:00 p.m.-8:20 p.m.

1 stop19h 20m

Lisbon Humberto Delgado

Thu 27/11

9:20 p.m.-5:45 p.m.

1 stop25h 25m

C$ 807

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Tue 7/10

6:10 p.m.-5:40 a.m.

Nonstop6h 30m

Lisbon Humberto Delgado

Mon 13/10

11:45 a.m.-2:20 p.m.

Nonstop7h 35m

C$ 819

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Mon 4/8

4:33 p.m.-8:20 a.m.

1 stop10h 47m

Lisbon Humberto Delgado

Wed 3/9

11:25 a.m.-5:47 p.m.

2 stops35h 22m

C$ 822

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Sat 20/9

8:10 p.m.-11:10 p.m.

1 stop22h 00m

Lisbon Humberto Delgado

Sat 27/9

6:35 a.m.-3:00 p.m.

1 stop13h 25m

C$ 835

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Wed 17/9

10:00 p.m.-11:30 p.m.

1 stop20h 30m

Lisbon Humberto Delgado

Thu 16/10

5:05 a.m.-8:10 p.m.

1 stop20h 05m

C$ 859

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Sat 20/9

5:05 p.m.-11:20 p.m.

1 stop25h 15m

Lisbon Humberto Delgado

Sat 11/10

5:55 a.m.-7:55 p.m.

1 stop19h 00m

C$ 860

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Thu 18/9

10:00 p.m.-7:00 p.m.

2 stops16h 00m

Lisbon Humberto Delgado

Thu 16/10

7:55 p.m.-4:00 p.m.

2 stops25h 05m

C$ 950

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Sun 2/11

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

Nonstop6h 25m

Lisbon Humberto Delgado

Fri 21/11

11:15 a.m.-2:20 p.m.

Nonstop8h 05m

C$ 964

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

Showing 1-10 of 18 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 9 June 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 57 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$ 775). 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 12 June 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.

Weekly flight availability from Boston to Lisbon

Explore weekly flight availability from Boston to Lisbon. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 12 June 2025.

The most flights from BOS to LIS are scheduled on a Monday (9 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (2 on average).

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 12 June 2025.
Read reviews from past customers who have flown Delta, Finnair and Cathay Pacific from Boston to Lisbon. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews
Check prices

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Cathay Pacific
7.6
Good
892 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 are 6 flights from Logan Intl to Humberto Delgado, all of which are around 6h 30m 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?

    Scandinavian Airlines, at C$ 693, was found to be the cheapest airline from Boston to Lisbon.Alternate airlines to your destination round-trip include Icelandair and TAP AIR PORTUGAL. Scandinavian Airlines is currently priced 36% 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 Delta, which is currently one of the cheapest options available, starting at C$ 916. Virgin Atlantic flights start at C$ 917 while deals on JetBlue start at C$ 967 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: JetBlue (78%), TAP AIR PORTUGAL (78%), Emirates (75%).

  • What are the cheapest flights from Boston to Lisbon?

    While on average a flight from Boston to Lisbon is generally C$ 1,167, our data shows the cheapest flight currently is C$ 516. When looking at the most popular route, (Boston Logan Intl - Lisbon Humberto Delgado), you can expect to pay C$ 738 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$ 775). 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
Costa da Caparica
Beja
Óbidos
Setúbal

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 12 June 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapestC$ 948AverageC$ 1,270FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.