$309 Cheap Flights from Boston (BOS) to Lisbon (LIS)

View $309 flight on Mon, Nov 2, 2026Opens in a new window

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

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Cheap Flights from Boston to Lisbon (BOS-LIS)

Prices were available within the past 7 days and start at $309 for one-way flights and $442 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

TAP Portugal
Sun, Nov 15 - Sat, Nov 21
BOS
Boston
LIS
Lisbon
$442 Roundtrip, found 1 day ago
$442
Roundtrip
found 1 day ago
Select TAP Portugal flight, departing Sun, Nov 15 from Boston to Lisbon, returning Sat, Nov 21, priced at $442 found 1 day ago
TAP Portugal
Mon, Mar 23 - Tue, Apr 7
BOS
Boston
LIS
Lisbon
$492 Roundtrip, found 6 days ago
$492
Roundtrip
found 6 days ago
Select TAP Portugal flight, departing Mon, Mar 23 from Boston to Lisbon, returning Tue, Apr 7, priced at $492 found 6 days ago
Scandinavian Airlines
Thu, Jan 28 - Wed, Feb 3
BOS
Boston
LIS
Lisbon
$497 Roundtrip, found 1 hour ago
$497
Roundtrip
found 1 hour ago
Select Scandinavian Airlines flight, departing Thu, Jan 28 from Boston to Lisbon, returning Wed, Feb 3, priced at $497 found 1 hour ago
Aer Lingus
Mon, Apr 27 - Wed, May 6
BOS
Boston
LIS
Lisbon
$576 Roundtrip, found 5 hours ago
$576
Roundtrip
found 5 hours ago
Select Aer Lingus flight, departing Mon, Apr 27 from Boston to Lisbon, returning Wed, May 6, priced at $576 found 5 hours ago
Turkish Airlines
Tue, May 12 - Wed, May 20
BOS
Boston
LIS
Lisbon
$646 Roundtrip, just found
$646
Roundtrip
just found
Select Turkish Airlines flight, departing Tue, May 12 from Boston to Lisbon, returning Wed, May 20, priced at $646 just found
SATA International-Azores Airlines S.A.
Mon, Nov 2 - Mon, Nov 9
BOS
Boston
LIS
Lisbon
$663 Roundtrip, found 12 hours ago
$663
Roundtrip
found 12 hours ago
Select SATA International-Azores Airlines S.A. flight, departing Mon, Nov 2 from Boston to Lisbon, returning Mon, Nov 9, priced at $663 found 12 hours ago
Icelandair
Wed, Apr 22 - Thu, Apr 30
BOS
Boston
LIS
Lisbon
$688 Roundtrip, just found
$688
Roundtrip
just found
Select Icelandair flight, departing Wed, Apr 22 from Boston to Lisbon, returning Thu, Apr 30, priced at $688 just found
Virgin Atlantic
Sun, Apr 12 - Wed, Apr 22
BOS
Boston
LIS
Lisbon
$711 Roundtrip, found 9 hours ago
$711
Roundtrip
found 9 hours ago
Select Virgin Atlantic flight, departing Sun, Apr 12 from Boston to Lisbon, returning Wed, Apr 22, priced at $711 found 9 hours ago
Delta
Sun, Apr 12 - Thu, Apr 23
BOS
Boston
LIS
Lisbon
$711 Roundtrip, found 8 hours ago
$711
Roundtrip
found 8 hours ago
Select Delta flight, departing Sun, Apr 12 from Boston to Lisbon, returning Thu, Apr 23, priced at $711 found 8 hours ago
Iberia
Sun, Apr 12 - Thu, Apr 23
BOS
Boston
LIS
Lisbon
$715 Roundtrip, found 8 hours ago
$715
Roundtrip
found 8 hours ago
Select Iberia flight, departing Sun, Apr 12 from Boston to Lisbon, returning Thu, Apr 23, priced at $715 found 8 hours ago

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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 $714
LIS
Humberto Delgado
Cheapest
Flights from $714

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 $309 and cheap return flights from $442 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, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, SATA International-Azores Airlines S.A., Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Roundtrip price
$441
Distance
3185 mi
Average flight time
10 hours 26 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 $309 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.

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*Available to One Key members.