A coastal cityscape with colorful buildings, a prominent cathedral, and a beach in the background.

$239 Cheap Flights from Boston (BOS) to Lisbon (LIS)

View $239 flight on Wed, Nov 4, 2026Opens in a new window

Popular airlines from Logan International Airport (BOS) to Humberto Delgado Airport (LIS)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Boston to Lisbon (BOS-LIS)

Prices were available within the past 7 days and start at $239 for one-way flights and $581 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

TAP Portugal
Sun, Nov 8 - Sat, Nov 14
BOS
Boston
LIS
Lisbon
$581 Roundtrip, just found
$581
Roundtrip
just found
Select TAP Portugal flight, departing Sun, Nov 8 from Boston to Lisbon, returning Sat, Nov 14, priced at $581 just found
Icelandair
Sat, Nov 14 - Sun, Nov 22
BOS
Boston
LIS
Lisbon
$644 Roundtrip, just found
$644
Roundtrip
just found
Select Icelandair flight, departing Sat, Nov 14 from Boston to Lisbon, returning Sun, Nov 22, priced at $644 just found
Aer Lingus
Sun, Nov 15 - Mon, Nov 23
BOS
Boston
LIS
Lisbon
$650 Roundtrip, just found
$650
Roundtrip
just found
Select Aer Lingus flight, departing Sun, Nov 15 from Boston to Lisbon, returning Mon, Nov 23, priced at $650 just found
TAP Portugal
Tue, Oct 27 - Mon, Nov 2
BOS
Boston
LIS
Lisbon
$659 Roundtrip, just found
$659
Roundtrip
just found
Select TAP Portugal flight, departing Tue, Oct 27 from Boston to Lisbon, returning Mon, Nov 2, priced at $659 just found
Virgin Atlantic
Sat, Nov 14 - Sun, Nov 22
BOS
Boston
LIS
Lisbon
$664 Roundtrip, just found
$664
Roundtrip
just found
Select Virgin Atlantic flight, departing Sat, Nov 14 from Boston to Lisbon, returning Sun, Nov 22, priced at $664 just found
Delta
Sat, Nov 14 - Sun, Nov 22
BOS
Boston
LIS
Lisbon
$664 Roundtrip, just found
$664
Roundtrip
just found
Select Delta flight, departing Sat, Nov 14 from Boston to Lisbon, returning Sun, Nov 22, priced at $664 just found
Iberia
Sat, Nov 14 - Sun, Nov 22
BOS
Boston
LIS
Lisbon
$668 Roundtrip, just found
$668
Roundtrip
just found
Select Iberia flight, departing Sat, Nov 14 from Boston to Lisbon, returning Sun, Nov 22, priced at $668 just found
American Airlines
Fri, Dec 11 - Wed, Dec 23
BOS
Boston
LIS
Lisbon
$668 Roundtrip, just found
$668
Roundtrip
just found
Select American Airlines flight, departing Fri, Dec 11 from Boston to Lisbon, returning Wed, Dec 23, priced at $668 just found
United
Sat, Nov 14 - Sun, Nov 22
BOS
Boston
LIS
Lisbon
$670 Roundtrip, just found
$670
Roundtrip
just found
Select United flight, departing Sat, Nov 14 from Boston to Lisbon, returning Sun, Nov 22, priced at $670 just found
Air Canada
Sat, Nov 14 - Sun, Nov 22
BOS
Boston
LIS
Lisbon
$670 Roundtrip, just found
$670
Roundtrip
just found
Select Air Canada flight, departing Sat, Nov 14 from Boston to Lisbon, returning Sun, Nov 22, priced at $670 just found

Alternative airports near Lisbon

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Humberto Delgado LIS. Cheapest option available. Flights from $774
LIS
Humberto Delgado
Cheapest
Flights from $774

Find the cheapest month to fly from Boston (BOS) to Lisbon (LIS)

November is typically the cheapest month to fly

From $472 - $799 per traveler.

What you need to know for your flight from Logan Intl. to Humberto Delgado

Boston (BOS) to Lisbon (LIS) at a glance

Travel between Boston (BOS) and Lisbon (LIS) with a selection of airlines that offer international long-haul routes. Compare options among various carriers, including budget-friendly choices, to discover the best flights to Lisbon that align with your travel plans and budget. Whether you're looking for cheap flights from Boston or a more comprehensive service, you’ll find key details for flights departing from Logan International Airport to Humberto Delgado Airport as you prepare to explore Lisbon's iconic sights and vibrant neighborhoods.

  • Fastest flight duration: around 6h 30m non-stop
  • Route distance: roughly 3,200 miles (5,150 km)
  • Flights per week: around 25+ flights with multiple daily departures on average
  • Typical fares (one-way): economy tickets often range from $245–$810, depending on seasonality and how far ahead you book

Flights from Logan International Airport (BOS) to Humberto Delgado Airport (LIS)

Based on recent traveler bookings, here are the most favored airlines for flights from Boston to Lisbon, typically featuring non-stop and one-stop options. Common layover points include João Paulo II Airport (PDL, approximately 2 hours and 15 minutes), Heathrow Airport (LHR, around 2 hours and 15 minutes), and Adolfo Suárez Madrid-Barajas Airport (MAD, about 1 hour and 30 minutes). This variety allows you to mix and match elements like price, total travel time, and cabin class to discover the best itinerary for your journey.

  • TAP Portugal: This full-service airline provides both non-stop and one-stop flights, with one-way prices generally falling between $245 and $925. It handles about 45% of the flights on this route, with a direct travel time of approximately 6 hours and 30 minutes.
  • Delta: A comprehensive service carrier, Delta offers non-stop and one-stop options with one-way fares usually between $280 and $955. It represents around 20% of departures on this route, with a typical direct flight duration of 6 hours and 30 minutes.
  • SATA International-Azores Airlines S.A.: This full-service airline specializes in one-stop services, with one-way fares ranging from $245 to $660. It accounts for roughly 8% of the departures here, featuring an in-flight time of 8 hours and 30 minutes, totaling about 10 hours and 15 minutes including layover.
  • Virgin Atlantic: A full-service option, Virgin Atlantic provides both non-stop and one-stop services, with one-way ticket prices generally ranging from $245 to $625. It makes up around 7% of the departures, with a standard non-stop travel time of 6 hours and 30 minutes.
  • British Airways: This full-service airline offers one-stop flights, with one-way fares typically between $245 and $840. British Airways accounts for about 4% of departures on this route, featuring an in-flight duration of 8 hours and 30 minutes, with a total time of around 10 hours and 15 minutes, including a layover.

Travelers have the option to upgrade their flight from Boston to Lisbon. Top airlines include TAP Portugal in business class, Delta offering both business class and premium economy, and American Airlines also featuring business class for a more comfortable journey.

Best time to fly from Boston (BOS) to Lisbon (LIS)

The most popular months for travelers flying from Boston to Lisbon are March, April, and July, when peak temperatures in Lisbon reach up to 71.1°F in July. If you prefer quieter travel, consider January, the least busy time to visit with temperatures around 54°F and typically the lowest average one-way fare (around $400). Flight availability peaks in May and September, with approximately 34 flights per week, making it easier to find convenient departure times.

  • Cheapest time to fly: January usually offers good deals with average one-way fare around $400, roughly 19% cheaper than the yearly average.
  • More budget-friendly months to fly: November, February, and October typically offer average one-way fares roughly ranging from $426 to $440.
  • Most flight options: May and September have the highest number of flights from Boston to Lisbon, with approximately 34 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January54.0°F (12.2°C)Moderately Low14$400
February54.5°F (12.5°C)Average20$433
March57.0°F (13.9°C)Moderately High24$461
April59.9°F (15.5°C)Moderately High27$578
May64.8°F (18.2°C)Average34$594
June68.2°F (20.1°C)Average33$621
July71.1°F (21.7°C)Moderately High32$528
August72.0°F (22.2°C)Average28$484
September70.3°F (21.3°C)Average34$499
October66.9°F (19.4°C)Average26$440
November59.9°F (15.5°C)Moderately Low21$426
December55.9°F (13.3°C)Moderately Low22$512

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Boston (BOS) to Lisbon (LIS)

  • Boston to Cascais (BOS-CAT): Located approximately 12 miles from Humberto Delgado Airport (LIS), Cascais Airport (CAT) serves as a convenient alternative for travelers.

How to find the best prices for flights from Boston (BOS) to Lisbon (LIS)

Getting some of the best deals on flights from Boston to Lisbon is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually available when booking at least two months in advance, which aligns with when most travelers make their reservations. Afternoon departures from 12 PM to 6 PM generally offer lower prices, while evening flights from 6 PM to 12 AM are more popular. Additionally, flying on Sunday often results in cheaper fares, despite Thursday being the most favored travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find Lisbon hotel and flight deals.
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Humberto Delgado Airport from Logan International Airport

Lisbon welcomes travelers from Boston with a range of transport options based on price, convenience, and proximity. Here's how to reach Lisbon efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Lisbon, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
  • Car rental: Renting a car from Humberto Delgado Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Humberto Delgado Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Humberto Delgado Airport, Lisbon Airport Station, a metro station, is just a short 0.1 miles away on foot, while Oriente Bus Station, a bus station, and Roma-Areeiro Station, a train station, are both located about 1.8 miles from the airport and are typically reached by car.

Frequently asked questions

How much does a flight from Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado) cost?
You can find cheap one-way flights from $239 and cheap return flights from $581 Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado) with Expedia. One-way flights generally range between $393 and $5514, and roundtrip flights usually range from $713 to $5404. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado)?
The cheapest month to fly from BOS to LIS is November when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado)?
There are 2 airlines offering direct flights from BOS to LIS:

  • TAP Portugal operates around 13 direct flights from BOS to LIS every week
  • Delta operates around 7 direct flights from BOS to LIS every week

What is the cheapest airline that flies from Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado)?
Air Onix is one of the cheapest airlines offering connecting flights from Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado) with return tickets starting from around $495.42. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado)?
To find a cheap flight from Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado)?
The best airline to fly with from Boston, MA (BOS) to Lisbon (LIS) will differ from traveler to traveler. If you like to fly early, TAP Portugal offers early morning flights. If price is the most important factor, TAP Portugal typically offers the lowest fares. American Airlines offers the most daily flights from Boston to Lisbon, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado)?
On average, there are around 3 nonstop flights per day from Logan Intl. (BOS) to Humberto Delgado (LIS). For more options, look at flights that include layovers.
What is the earliest flight from Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado)?
The earliest flight from Boston (BOS) to Lisbon (LIS) generally departs at around 5:00 AM, operated by American Airlines and TAP Portugal. This seasonal service is active in February, and an early departure allows you to enjoy more time in the beautiful city of Lisbon. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado)?
The most popular departure times for flights from Logan International Airport (BOS) in Boston to Humberto Delgado Airport (LIS) in Lisbon are in the late evening, from 9pm to midnight. About 32% of passengers choose this time window. Many major carriers, including TAP Portugal, British Airways, and Iberia, offer flights during this window. This timing is favored because it lets you enjoy a full day in Boston before your flight and arrive in Lisbon the next morning.
How long does it take to fly from Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado)?
A nonstop flight from BOS to LIS typically takes around 6 hours 30 minutes, covering approximately 3,185 miles. Connecting flights on this route usually add 10 hours 30 minutes to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado)?
You can fly business class between BOS and LIS. Airlines that offer business class service on this route include:

  • American Airlines
  • British Airways
  • Iberia
  • TAP Portugal
  • Turkish Airlines
  • Delta Air Lines
  • Air Canada
  • Air France
  • Swiss International Air Lines
  • Lufthansa

First class is available with United Airlines and Delta Air Lines.
How much is a business class flight from Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado)?
A direct, return business class ticket from Boston (BOS) to Lisbon (LIS) typically costs between $5,071 - $7,068. A non-stop, one-way business class flight is usually around $2,505 - $7,993. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado) flight with Expedia?
It's easy to earn miles on a Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Lisbon from Logan Intl. (BOS)?
From Logan Intl. (BOS), you can fly into Humberto Delgado (LIS) to reach Lisbon. Some flights may connect through major hubs like John F. Kennedy Intl. (JFK), Liberty Intl. (EWR), Washington Dulles Intl. (IAD) before reaching Lisbon. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado) at the last minute?
Typically, booking a last minute flight from Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado) flight and hotel package?
Securing a Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado) Lisbon Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado)?
If you booked your Boston, MA (BOS-Logan Intl.) to Lisbon (LIS-Humberto Delgado) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Logan Intl.
Destination airport
Humberto Delgado
Airlines serving
Aer Lingus, Air Canada, Air France, Air Transat, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, ITA Airways, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, SATA International-Azores Airlines S.A., Swiss International Air Lines, TAP Portugal, United, Virgin Atlantic
Roundtrip price
$580
Distance
3185 mi
Average flight time
11 hours 31 mins

Book with confidence

Boston to Lisbon Flights

The cheapest times to fly from Boston to Lisbon

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boston to Lisbon are during the month of November. You can find some of the cheapest flights from Boston to Lisbon with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boston to Lisbon

Sunday is one of the best days to book for cheap flights from Boston to Lisbon: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boston to Lisbon

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boston to Lisbon in 2026. You can also book with separate airlines for your outbound and return journeys, from $239 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boston to Lisbon flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boston to Lisbon airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Boston to Lisbon Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

Explore a world of travel with Expedia