$36 Cheap Flights from Boise (BOI) to Las Vegas (LAS)

View $36 flight on Thu, Aug 21, 2025Opens in a new window

Popular airlines from Boise Airport (BOI) to Harry Reid Intl. Airport (LAS)

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Cheap Flights from Boise to Las Vegas (BOI-LAS)

Prices were available within the past 7 days and start at $36 for one-way flights and $72 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Thu, Aug 21 - Mon, Aug 25
BOI
Boise
LAS
Las Vegas
$72 Roundtrip, just found
$72
Roundtrip
just found
Select Spirit Airlines flight, departing Thu, Aug 21 from Boise to Las Vegas, returning Mon, Aug 25, priced at $72 just found
Spirit Airlines
Fri, Oct 31 - Sun, Nov 2
BOI
Boise
LAS
Las Vegas
$84 Roundtrip, just found
$84
Roundtrip
just found
Select Spirit Airlines flight, departing Fri, Oct 31 from Boise to Las Vegas, returning Sun, Nov 2, priced at $84 just found
Spirit Airlines
Sun, Oct 19 - Mon, Oct 27
BOI
Boise
LAS
Las Vegas
$96 Roundtrip, just found
$96
Roundtrip
just found
Select Spirit Airlines flight, departing Sun, Oct 19 from Boise to Las Vegas, returning Mon, Oct 27, priced at $96 just found
Spirit Airlines
Mon, Oct 13 - Wed, Oct 15
BOI
Boise
LAS
Las Vegas
$102 Roundtrip, just found
$102
Roundtrip
just found
Select Spirit Airlines flight, departing Mon, Oct 13 from Boise to Las Vegas, returning Wed, Oct 15, priced at $102 just found
Spirit Airlines
Sat, Oct 18 - Sun, Oct 19
BOI
Boise
LAS
Las Vegas
$102 Roundtrip, just found
$102
Roundtrip
just found
Select Spirit Airlines flight, departing Sat, Oct 18 from Boise to Las Vegas, returning Sun, Oct 19, priced at $102 just found
Spirit Airlines
Thu, Aug 21 - Thu, Aug 28
BOI
Boise
LAS
Las Vegas
$105 Roundtrip, just found
$105
Roundtrip
just found
Select Spirit Airlines flight, departing Thu, Aug 21 from Boise to Las Vegas, returning Thu, Aug 28, priced at $105 just found
Southwest Airlines
Sat, Oct 11 - Sat, Oct 18
BOI
Boise
LAS
Las Vegas
$111 Roundtrip, found 2 hours ago
$111
Roundtrip
found 2 hours ago
Select Southwest Airlines flight, departing Sat, Oct 11 from Boise to Las Vegas, returning Sat, Oct 18, priced at $111 found 2 hours ago
American Airlines
Mon, Sep 22 - Thu, Sep 25
BOI
Boise
LAS
Las Vegas
$116 Roundtrip, found 2 hours ago
$116
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Mon, Sep 22 from Boise to Las Vegas, returning Thu, Sep 25, priced at $116 found 2 hours ago
Alaska Airlines
Tue, Oct 28 - Wed, Nov 5
BOI
Boise
LAS
Las Vegas
$131 Roundtrip, just found
$131
Roundtrip
just found
Select Alaska Airlines flight, departing Tue, Oct 28 from Boise to Las Vegas, returning Wed, Nov 5, priced at $131 just found
Hawaiian Airlines
Mon, Dec 8 - Wed, Dec 10
BOI
Boise
LAS
Las Vegas
$131 Roundtrip, found 3 days ago
$131
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Mon, Dec 8 from Boise to Las Vegas, returning Wed, Dec 10, priced at $131 found 3 days ago

Find the cheapest month to fly from Boise (BOI) to Las Vegas (LAS)

November is typically the cheapest month to fly

From $41 - $308 per traveler.

Graph displaying average flight prices per month

Alternative airports near Las Vegas

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

Select flight to McCarran Intl. LAS. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $102
LAS
McCarran Intl.
CheapestClosest
Average driving time to city center6 min
Flights from $102
0
Flights from Boise (BOI) to Las Vegas (LAS)
Origin airport
Boise
Destination airport
Harry Reid Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$72
Distance
520 mi

Boise to Las Vegas Flights

The cheapest times to fly from Boise to Las Vegas

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

 

The best time to book a flight from Boise to Las Vegas

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

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 Boise to Las Vegas in 2025. You can also book with separate airlines for your outbound and return journeys, from $36 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 Boise to Las Vegas 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 Boise to Las Vegas 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 Boise Airport (BOI) to Harry Reid Intl. Airport (LAS) cost?
Cheap round-trip flights from Boise Airport (BOI) to Harry Reid Intl. Airport (LAS) start at $82. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Spirit Airlines flight leaving BOI on August 18 2025 and touching down at LAS. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from BOI to LAS?
The cheapest flights from BOI to LAS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Boise Airport (BOI) to Harry Reid Intl. Airport (LAS)?
Take the express route to Harry Reid Intl. Airport (LAS). 3 carriers operate direct routes from Boise Airport (BOI), including:

  • Southwest Airlines
  • Spirit Airlines
  • Alaska Airlines

What is the cheapest airline that flies from BOI to LAS?
With tickets starting at $41 for a one-way journey from BOI to LAS, Spirit Airlines is currently the cheapest airline for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from BOI on October 18 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Boise Airport (BOI) to Harry Reid Intl. Airport (LAS)?
With an average of 4 nonstop flights that operate from Boise Airport (BOI) to Harry Reid Intl. Airport (LAS) every day, you'll be cruising above the clouds before you know it.
What are the most popular departure times for flights from Boise Airport (BOI) to Harry Reid Intl. Airport (LAS)?
More travelers fly between BOI and LAS at 7 PM than at any other time. Looking for a quieter experience? Pick a flight outside the busiest times and it's possible you'll save on your fare as well.
What day of the week has the most flights from BOI to LAS?
Travel on a Thursday if you're searching for the best choice of flights from Boise Airport (BOI) to Harry Reid Intl. Airport (LAS).
What is the earliest flight from Boise Airport (BOI) to Harry Reid Intl. Airport (LAS)?
Hop on the earliest flight at around 6:20AM UTC-7, departing from Boise Airport (BOI). You'll be in the air for approximately 2h, landing at Harry Reid Intl. Airport (LAS) at approximately 7:20AM UTC-8.
How long does it take to fly from Boise Airport (BOI) to Harry Reid Intl. Airport (LAS)?
Flights from BOI to LAS have an average travel time of 1 hour and 53 minutes. The total distance between these two airports is 520 mi.
What airline has the least delays from BOI to LAS?
Consider traveling with Southwest Airlines if you'd like to go straight from Boise Airport (BOI) to Harry Reid Intl. Airport (LAS) without any holdups. This airline has the best track record for punctuality, with an on-time performance of 91%. Want to be notified if anything changes? You can check your flight status using the Expedia App.
What is the best time to fly from Boise Airport (BOI) to Harry Reid Intl. Airport (LAS)?
To reach Harry Reid Intl. Airport (LAS) without delays, choose a flight that takes off from Boise Airport (BOI) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Las Vegas from Boise Airport (BOI)?
If you're taking a direct flight from Boise Airport (BOI) to Las Vegas, Harry Reid Intl. Airport (LAS) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Boise Airport (BOI) to Harry Reid Intl. Airport (LAS) last-minute?
Last-minute bookings from BOI to LAS are generally more expensive. To secure the cheapest rates, start searching for flights early. That being said, if you're flexible with your travel dates, you may find a cheap fare right before you leave.
Is it cheaper to book a BOI to LAS flight and hotel package?
You'll typically save money by securing a BOI to LAS flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. Once you've selected your preferred flights and accommodations, consider adding extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from Boise Airport (BOI) to Harry Reid Intl. Airport (LAS)?
If you booked your BOI to LAS flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

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