$832 Cheap Flights from Lisbon (LIS) to Boise (BOI)

View $832 flight on Sat, Nov 22, 2025Opens in a new window

Popular airlines from Humberto Delgado Airport (LIS) to Boise Airport (BOI)

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Cheap Flights from Lisbon to Boise (LIS-BOI)

Prices were available within the past 7 days and start at $832 for one-way flights and $892 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Thu, Nov 13 - Tue, Nov 25
LIS
Lisbon
BOI
Boise
$892 Roundtrip, found 3 days ago
$892
Roundtrip
found 3 days ago
Select Scandinavian Airlines flight, departing Thu, Nov 13 from Lisbon to Boise, returning Tue, Nov 25, priced at $892 found 3 days ago
American Airlines
Mon, Oct 27 - Tue, Nov 4
LIS
Lisbon
BOI
Boise
$966 Roundtrip, found 1 day ago
$966
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Oct 27 from Lisbon to Boise, returning Tue, Nov 4, priced at $966 found 1 day ago
American Airlines
Mon, Oct 27 - Tue, Nov 4
LIS
Lisbon
BOI
Boise
$980 Roundtrip, found 1 day ago
$980
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Oct 27 from Lisbon to Boise, returning Tue, Nov 4, priced at $980 found 1 day ago
American Airlines
Mon, Oct 27 - Tue, Nov 4
LIS
Lisbon
BOI
Boise
$983 Roundtrip, found 1 day ago
$983
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Oct 27 from Lisbon to Boise, returning Tue, Nov 4, priced at $983 found 1 day ago
American Airlines
Mon, Oct 27 - Tue, Nov 4
LIS
Lisbon
BOI
Boise
$985 Roundtrip, found 1 day ago
$985
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Oct 27 from Lisbon to Boise, returning Tue, Nov 4, priced at $985 found 1 day ago
American Airlines
Mon, Oct 27 - Tue, Nov 4
LIS
Lisbon
BOI
Boise
$992 Roundtrip, found 1 day ago
$992
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Oct 27 from Lisbon to Boise, returning Tue, Nov 4, priced at $992 found 1 day ago
American Airlines
Mon, Oct 27 - Tue, Nov 4
LIS
Lisbon
BOI
Boise
$993 Roundtrip, found 1 day ago
$993
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Oct 27 from Lisbon to Boise, returning Tue, Nov 4, priced at $993 found 1 day ago
Iberia
Thu, Nov 6 - Mon, Nov 10
LIS
Lisbon
BOI
Boise
$1,001 Roundtrip, found 2 days ago
$1,001
Roundtrip
found 2 days ago
Select Iberia flight, departing Thu, Nov 6 from Lisbon to Boise, returning Mon, Nov 10, priced at $1,001 found 2 days ago
Delta
Mon, Oct 27 - Tue, Nov 4
LIS
Lisbon
BOI
Boise
$1,022 Roundtrip, found 1 day ago
$1,022
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Oct 27 from Lisbon to Boise, returning Tue, Nov 4, priced at $1,022 found 1 day ago
Lufthansa
Thu, Nov 13 - Tue, Nov 25
LIS
Lisbon
BOI
Boise
$1,026 Roundtrip, found 3 days ago
$1,026
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Thu, Nov 13 from Lisbon to Boise, returning Tue, Nov 25, priced at $1,026 found 3 days ago
Flights from Lisbon (LIS) to Boise (BOI)
Origin airport
Humberto Delgado
Destination airport
Boise
Airlines serving
Air Canada, Air France, American Airlines, British Airways, Delta, Finnair, Iberia, KLM, Lufthansa, United, Virgin Atlantic
Roundtrip price
$892
Distance
5154 mi

Lisbon to Boise Flights

The cheapest times to fly from Lisbon to Boise

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 Lisbon to Boise are during the month of November. You can find some of the cheapest flights from Lisbon to Boise with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Lisbon to Boise

Sunday is one of the best days to book for cheap flights from Lisbon to Boise: 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 Lisbon to Boise

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 Lisbon to Boise in 2025. You can also book with separate airlines for your outbound and return journeys, from $832 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 Lisbon to Boise 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 Lisbon to Boise 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.

 

Frequently asked questions

How much does a flight from Humberto Delgado Airport (LIS) to Boise Airport (BOI) cost?
Discover the latest flight deals from LIS to BOI by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from LIS to BOI?
The cheapest flights from LIS to BOI are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from LIS to BOI?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from LIS to BOI. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Humberto Delgado Airport (LIS) to Boise Airport (BOI)?
You'll need to take a flight with a layover when traveling from Humberto Delgado Airport (LIS) to Boise Airport (BOI). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from LIS to BOI?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can change depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Humberto Delgado Airport (LIS) to Boise Airport (BOI)?
To avoid possible delays on the Humberto Delgado Airport (LIS) to Boise Airport (BOI) route, aim to fly before 3 PM. Flights after this time are 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.
Is it cheaper to buy a plane ticket from Humberto Delgado Airport (LIS) to Boise Airport (BOI) last-minute?
Last-minute fares from LIS to BOI are generally more expensive. For the lowest prices, start looking for flights as early as possible. That being said, if you're flexible with your travel plans, it's possible to find a cheap fare right before your journey.
Is it cheaper to book a LIS to BOI flight and hotel package?
You'll typically save money by booking a LIS to BOI flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After choosing your ideal accommodations and flights, consider adding extras like activities, car rentals and tours.
Can I cancel or change the date of my flight from Humberto Delgado Airport (LIS) to Boise Airport (BOI)?
If you booked your LIS to BOI flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare 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, go to our Customer Service portal for more information.

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*Available to One Key members.