$300 Cheap Flights from Boston (BOS) to Lisbon (LIS)

View $300 flight on Mon, Jan 19, 2026Opens in a new window

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

Today's featured flight deals from Logan International Airport (BOS) to Humberto Delgado Airport (LIS)

Nonstop
Carry-on included
Lower price than typical

Cheap Flights from Boston to Lisbon (BOS-LIS)

Prices were available within the past 7 days and start at $300 for one-way flights and $402 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Thu, Apr 9 - Sun, Apr 19
BOS
Boston
LIS
Lisbon
$402 Roundtrip, just found
$402
Roundtrip
just found
Select Icelandair flight, departing Thu, Apr 9 from Boston to Lisbon, returning Sun, Apr 19, priced at $402 just found
Scandinavian Airlines
Sat, Jan 24 - Sun, Feb 1
BOS
Boston
LIS
Lisbon
$428 Roundtrip, found 4 hours ago
$428
Roundtrip
found 4 hours ago
Select Scandinavian Airlines flight, departing Sat, Jan 24 from Boston to Lisbon, returning Sun, Feb 1, priced at $428 found 4 hours ago
Aer Lingus
Sun, Nov 16 - Tue, Nov 25
BOS
Boston
LIS
Lisbon
$455 Roundtrip, just found
$455
Roundtrip
just found
Select Aer Lingus flight, departing Sun, Nov 16 from Boston to Lisbon, returning Tue, Nov 25, priced at $455 just found
United
Thu, Apr 9 - Thu, Apr 16
BOS
Boston
LIS
Lisbon
$480 Roundtrip, found 4 hours ago
$480
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Apr 9 from Boston to Lisbon, returning Thu, Apr 16, priced at $480 found 4 hours ago
Air Canada
Thu, Apr 9 - Thu, Apr 16
BOS
Boston
LIS
Lisbon
$480 Roundtrip, found 4 hours ago
$480
Roundtrip
found 4 hours ago
Select Air Canada flight, departing Thu, Apr 9 from Boston to Lisbon, returning Thu, Apr 16, priced at $480 found 4 hours ago
American Airlines
Sun, Mar 29 - Thu, Apr 9
BOS
Boston
LIS
Lisbon
$483 Roundtrip, found 6 days ago
$483
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sun, Mar 29 from Boston to Lisbon, returning Thu, Apr 9, priced at $483 found 6 days ago
TAP Portugal
Wed, May 6 - Sat, May 16
BOS
Boston
LIS
Lisbon
$490 Roundtrip, found 2 days ago
$490
Roundtrip
found 2 days ago
Select TAP Portugal flight, departing Wed, May 6 from Boston to Lisbon, returning Sat, May 16, priced at $490 found 2 days ago
TAP Portugal
Sun, Apr 5 - Tue, Apr 21
BOS
Boston
LIS
Lisbon
$490 Roundtrip, just found
$490
Roundtrip
just found
Select TAP Portugal flight, departing Sun, Apr 5 from Boston to Lisbon, returning Tue, Apr 21, priced at $490 just found
Swiss International Air Lines
Tue, Apr 28 - Fri, May 8
BOS
Boston
LIS
Lisbon
$501 Roundtrip, just found
$501
Roundtrip
just found
Select Swiss International Air Lines flight, departing Tue, Apr 28 from Boston to Lisbon, returning Fri, May 8, priced at $501 just found
Lufthansa
Mon, Apr 20 - Mon, Apr 27
BOS
Boston
LIS
Lisbon
$509 Roundtrip, found 2 hours ago
$509
Roundtrip
found 2 hours ago
Select Lufthansa flight, departing Mon, Apr 20 from Boston to Lisbon, returning Mon, Apr 27, priced at $509 found 2 hours ago

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

September is typically the cheapest month to fly

From $386 - $554 per traveler.

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 $521
LIS
Humberto Delgado
Cheapest
Flights from $521

Frequently asked questions

How much does a flight from Logan Intl. Airport (BOS) to Humberto Delgado Airport (LIS) cost?
Lock in a cheap one-way flight from $300 or cheap return flight from $402 from Logan Intl. Airport (BOS) to Humberto Delgado Airport (LIS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Logan Intl. Airport (BOS) to Humberto Delgado Airport (LIS)?
Traveling in April is a good way to save, as it's the cheapest month for flights between BOS and LIS. You'll often find the lowest prices during the off-season.
Which airlines fly direct from Logan Intl. Airport (BOS) to Humberto Delgado Airport (LIS)?
When flying out of Logan Intl. Airport (BOS), you can get on a direct flight to Humberto Delgado Airport (LIS) with TAP Portugal.
What is the cheapest airline that flies from Logan Intl. Airport (BOS) to Humberto Delgado Airport (LIS)?
To find the cheapest airline flying from BOS to LIS, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Logan Intl. Airport (BOS) to Humberto Delgado Airport (LIS)?
On average, you'll only find 1 direct flight departing from Logan Intl. Airport (BOS) to Humberto Delgado Airport (LIS) per day. If this isn't convenient for you, think about flights with a layover. Just customize your search results on Expedia to include one or more stops to discover a better alternative.
What are the most popular departure times for flights from Logan Intl. Airport (BOS) to Humberto Delgado Airport (LIS)?
Flights between BOS and LIS are their busiest at 6 PM. For a quieter experience and potentially cheaper tickets, choose a departure outside the usual busy windows.
What day of the week has the most flights from BOS to LIS?
If you travel on a Friday, you'll get the biggest range of choices for flights from Logan Intl. Airport (BOS) to Humberto Delgado Airport (LIS).
What is the earliest flight from Logan Intl. Airport (BOS) to Humberto Delgado Airport (LIS)?
Catch the earliest flight at around 6:10PM UTC-5, heading out of Logan Intl. Airport (BOS). You'll be flying for about 6h 25m, coming in to land at Humberto Delgado Airport (LIS) at approximately 5:35AM UTC+0.
How long does it take to fly from Logan Intl. Airport (BOS) to Humberto Delgado Airport (LIS)?
The average flight duration from BOS to LIS is 6 hours and 25 minutes, covering a distance of 3,200 mi.
What airline has the least delays from BOS to LIS?
Consider traveling with Delta Air Lines if you'd like to go straight from Logan Intl. Airport (BOS) to Humberto Delgado Airport (LIS) without any holdups. This carrier has the best track record for punctuality, with an on-time performance of 86%. Want real-time updates? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Logan Intl. Airport (BOS) to Humberto Delgado Airport (LIS)?
Choose a flight from Logan Intl. Airport (BOS) to Humberto Delgado Airport (LIS) that takes off before 3 PM to reduce the likelihood of delays. Departures later than this are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Lisbon District from Logan Intl. Airport (BOS)?
Browse your flight options from Logan Intl. Airport (BOS) to Humberto Delgado Airport (LIS). This is the only airport in Lisbon District you can touch down at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Logan Intl. Airport (BOS) to Humberto Delgado Airport (LIS) last-minute?
Booking your ticket from BOS to LIS shortly before your journey is generally more expensive. However, if there's some wiggle room with your departure times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book a BOS to LIS flight and hotel package?
You'll typically save money by securing a BOS to LIS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've selected your ideal accommodations and flights, consider adding extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from Logan Intl. Airport (BOS) to Humberto Delgado Airport (LIS)?
If you reserved your BOS to LIS flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

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, JetBlue Airways, KLM, Lufthansa, Royal Air Maroc, SATA International-Azores Airlines S.A., Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Roundtrip price
$402
Distance
3185 mi
Average flight time
11 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 April. 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 2025. You can also book with separate airlines for your outbound and return journeys, from $300 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

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*Available to One Key members.