Question 1

How popular is this Boston to Lisbon flight route?

Accepted Answer

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.

Question 2

What are the cheapest airlines flying from Boston to Lisbon round-trip?

Accepted Answer

United Airlines, at C$ 696, was found to be the cheapest airline from Boston to Lisbon.Alternate airlines to your destination round-trip include TAP AIR PORTUGAL and Delta. United Airlines is currently priced 36% below the average price you’ll pay for this route.

Question 3

What are the cheapest airlines to fly from Boston to Lisbon one-way?

Accepted Answer

To fly one-way, consider booking your trip with SWISS, which is currently one of the cheapest options available, starting at C$ 659. United Airlines flights start at C$ 693 while deals on JetBlue start at C$ 748 one-way.

Question 4

How far ahead should I book a flight from Boston to Lisbon?

Accepted Answer

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.

Question 5

What is the cheapest month to book a flight from Boston to Lisbon?

Accepted Answer

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$ 776). 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.

Question 6

What is the cheapest day to fly from Boston to Lisbon?

Accepted Answer

Travelers seeking maximum savings on their Boston to Lisbon flight should consider departing on Thursday evenings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Question 7

Weekly flight availability from Boston to Lisbon

Accepted Answer

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).

Question 8

E

Accepted Answer

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.

Question 9

E

Accepted Answer

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).

Question 10

What are the cheapest flights from Boston to Lisbon?

Accepted Answer

While on average a flight from Boston to Lisbon is generally C$ 998, 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$ 1,215 for that flight.

Question 11

What are the most reliable airlines from Boston to Lisbon?

Accepted Answer

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 (69%), TAP AIR PORTUGAL (69%), KLM (68%).

Question 12

What is the cheapest day to fly round-trip from Boston to Lisbon?

Accepted Answer

Monday flights are generally found to be more expensive for flights from Boston to Lisbon. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Lisbon.

Question 13

How far in advance should I book a flight from Boston to Lisbon?

Accepted Answer

Users have found that booking a flight from Boston to Lisbon at least 58 days early can save you up to 27% on average compared to booking a flight this week. If booking 58 days before your flight isn’t an option for you, users have found flights from Boston to Lisbon for as little as C$ 1,128 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as C$ 1,634 for flights departing within the next 3 days.

Question 14

What is the cheapest month to fly from Boston to Lisbon?

Accepted Answer

Our data shows that February tends to be the cheapest month to fly to Lisbon from Boston. Users have commonly found prices around C$ 1,096 for the month, but tickets can be as low as C$ 457. Due to multiple factors, prepare for potentially higher prices in June.

Question 15

What is the cheapest time of day to fly from BOS to LIS?

Accepted Answer

It’s typically best to fly out from Boston to Lisbon at noon. Doing so could potentially save you 12% on the flight price compared to flying in the morning, which is usually more expensive.

Question 16

What airports do I use to fly from Boston to Lisbon?

Accepted Answer

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.

Question 17

Can I find deals for flights from Boston to Lisbon that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Boston to Lisbon flights, Cheapflights offers vacation packages that include both flights and hotel.

Question 18

How can I find direct flights from Boston to Lisbon?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Lisbon.

Question 19

Can I find deals for business class flights from Boston to Lisbon?

Accepted Answer

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.

Question 20

How does Cheapflights help users find flights from Boston to Lisbon?

Accepted Answer

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.

Question 21

Why should you use Cheapflights to find cheap flight tickets from Boston to Lisbon?

Accepted Answer

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!

Question 22

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

Accepted Answer

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.

Question 23

Can Cheapflights notify me if prices for flights from Boston to Lisbon become cheaper?

Accepted Answer

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.

Round-trip from	C$ 696
One-way from	C$ 659
Popular in	June
Cheapest in	February
Average price	C$ 1,389
Good round-trip deal	C$ 955 or less

Cheap flights from Boston to Lisbon from C$ 659

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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.

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

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Find flight deals from Boston to Lisbon

Cheapest flights from Boston to LisbonExplore 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 26 June 2025.

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 26 June 2025.

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

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.

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 20 June 2025.

What is the cheapest month to book a flight from Boston to Lisbon?

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 26 June 2025.

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 26 June 2025.

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

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 26 June 2025.

Get a feel of what it's like to fly with Delta,Cathay Pacific, andSWISS from Boston to Lisbon by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

How popular is this Boston to Lisbon flight route?

What are the cheapest airlines flying from Boston to Lisbon round-trip?

What are the cheapest airlines to fly from Boston to Lisbon one-way?

What are the most reliable airlines from Boston to Lisbon?

What are the cheapest flights from Boston to Lisbon?

Can I find deals for flights from Boston to Lisbon that include hotel bookings?

How can I find direct flights from Boston to Lisbon?

Can I find deals for business class flights from Boston to Lisbon?

What is the cheapest month to book a flight from Boston to Lisbon?

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Top airline flying from Boston to Lisbon

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How does Cheapflights help users find flights from Boston to Lisbon?

Why should you use Cheapflights to find cheap flight tickets from Boston to Lisbon?

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

Can Cheapflights notify me if prices for flights from Boston to Lisbon become cheaper?

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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 26 June 2025.