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$43+ Cheap flights from Idaho to Las Vegas (LAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LAS
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap flight deals from Idaho to Las Vegas

Cheapest flights from Idaho to Las Vegas
Explore the most affordable flight options available from Idaho to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This Booking.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2210:41 pmBOI - LAS
Nonstop1h 49mAllegiant Air
Mon 12/2912:11 pmLAS - BOI
Nonstop1h 53mAllegiant Air
Deal found 12/21$189
This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2210:41 pmBOI - LAS
Nonstop1h 49mAllegiant Air
Fri 12/2612:11 pmLAS - BOI
Nonstop1h 53mAllegiant Air
Deal found 12/21$223
This Frontier deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2812:02 pmGEG - LAS
1 stop11h 40mFrontier
Thu 1/16:30 amLAS - GEG
1 stop9h 23mFrontier
Deal found 12/21$257
This Expedia deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2512:38 pmBOI - LAS
1 stop20h 27mFrontier
Sat 12/2712:59 amLAS - BOI
1 stop9h 44mFrontier
Deal found 12/21$283
This Frontier deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2712:02 pmGEG - LAS
1 stop11h 40mFrontier
Tue 12/306:30 amLAS - GEG
1 stop9h 23mFrontier
Deal found 12/20$302
This Frontier deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2712:54 pmBOI - LAS
1 stop11h 48mFrontier
Wed 12/3112:59 amLAS - BOI
1 stop9h 44mFrontier
Deal found 12/22$307
This Frontier deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2712:02 pmGEG - LAS
1 stop11h 40mFrontier
Thu 1/16:30 amLAS - GEG
1 stop9h 23mFrontier
Deal found 12/21$307
This American Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/233:05 pmGEG - LAS
1 stop6h 43mAmerican Airlines
Tue 12/306:15 amLAS - GEG
1 stop7h 21mAmerican Airlines
Deal found 12/21$311
This Cheapflightsfares deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/299:46 pmBOI - LAS
Nonstop1h 49mAllegiant Air
Fri 1/212:11 pmLAS - BOI
Nonstop1h 53mAllegiant Air
Deal found 12/21$312
This Booking.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2311:19 amGEG - LAS
Nonstop2h 23mAllegiant Air
Tue 12/308:00 amLAS - GEG
Nonstop2h 29mAllegiant Air
Deal found 12/21$315
This Cheapflightsfares deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:52 pmIDA - LAS
Nonstop1h 43mAllegiant Air
Mon 12/291:23 pmLAS - IDA
Nonstop1h 49mAllegiant Air
Deal found 12/22$316
This Frontier deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/304:48 pmGEG - LAS
1 stop5h 51mFrontier
Thu 1/16:30 amLAS - GEG
1 stop9h 23mFrontier
Deal found 12/20$332

Find flight deals from Idaho to Las Vegas

Keep the following information in mind while searching for Idaho to Las Vegas flight deals. Data was last updated December 23, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$86
(Cheapflightsfares)

One-way from

$43
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$276

Good round-trip deal

$127 or less

Good one-way deal

$58 or less
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Las Vegas Harry Reid Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Las Vegas Harry Reid Intl flights.
Search Deals
From Idaho to Las Vegas Harry Reid Intl
Search Deals
One-way flight from Idaho to Las Vegas Harry Reid Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($6 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Idaho to Las Vegas Harry Reid Intl.
Search Deals
Price to beat on a one-way flight from Idaho to Las Vegas Harry Reid Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Las Vegas that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2025.
Use the filters below to find and compare flights from Idaho to Las Vegas that are best for you.

Fly from

Idaho

Fly to

Las Vegas

Route

Depart

Return

Price

Twin FallsLas Vegas

TWF - LAS

TWFLAS

Twin Falls Joslin

Fri 3/6

1:50 pm-2:30 pm

Nonstop1h 40m

Las Vegas Harry Reid Intl

Mon 3/9

9:35 am-12:10 pm

Nonstop1h 35m

$108

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 1/20

10:39 am-5:41 pm

1 stop8h 02m

Las Vegas Harry Reid Intl

Tue 1/27

1:45 pm-9:58 pm

1 stop7h 13m

$137

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Wed 1/28

7:59 pm-8:53 pm

Nonstop1h 54m

Las Vegas Harry Reid Intl

Fri 1/30

8:50 am-11:48 am

Nonstop1h 58m

$137

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Thu 4/16

7:20 am-8:25 am

Nonstop2h 05m

Las Vegas Harry Reid Intl

Sun 4/19

7:59 pm-10:52 pm

Nonstop1h 53m

$137

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Sun 1/18

8:58 pm-9:55 pm

Nonstop1h 57m

Las Vegas Harry Reid Intl

Wed 1/21

8:50 am-11:48 am

Nonstop1h 58m

$137

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 2/17

5:15 pm-10:00 pm

1 stop5h 45m

Las Vegas Harry Reid Intl

Sat 2/21

11:06 am-8:15 pm

1 stop8h 09m

$147

SpokaneLas Vegas

GEG - LAS

GEGLAS

Spokane

Mon 1/19

6:00 am-9:55 pm

1 stop15h 55m

Las Vegas Harry Reid Intl

Thu 1/22

10:07 am-5:06 pm

1 stop6h 59m

$152

SpokaneLas Vegas

GEG - LAS

GEGLAS

Spokane

Wed 2/18

7:06 pm-11:55 pm

1 stop4h 49m

Las Vegas Harry Reid Intl

Sat 2/21

6:00 am-12:29 pm

1 stop6h 29m

$152

SpokaneLas Vegas

GEG - LAS

GEGLAS

Spokane

Tue 2/10

5:45 am-1:24 pm

1 stop7h 39m

Las Vegas Harry Reid Intl

Sat 2/14

6:00 am-11:06 am

1 stop5h 06m

$152

SpokaneLas Vegas

GEG - LAS

GEGLAS

Spokane

Sun 2/1

5:00 am-9:13 am

1 stop4h 13m

Las Vegas Harry Reid Intl

Thu 2/5

10:07 am-5:06 pm

1 stop6h 59m

$152

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 60 results
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Best time to book a flight from Idaho to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Idaho with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Idaho to Las Vegas

What is the cheapest month to book a flight from Idaho to Las Vegas?

Currently, September is the cheapest month in which you can book a flight from Idaho to Las Vegas (average of $46). Flying from Idaho to Las Vegas in December is currently the most expensive (average of $81). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ID to LAS?

Find hourly flight availability from Idaho to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2025.

A simple way to save on the total cost of your ticket is to fly from Idaho to Las Vegas in the evening. If you’re flexible enough to do this you can expect to save up to 56% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Idaho to Las Vegas?

Use this chart to determine the cheapest time to fly round-trip from Idaho to Las Vegas. Price data was last updated on December 20, 2025.

Travelers seeking maximum savings on their Idaho to Las Vegas flight should consider departing on Sunday evenings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Idaho to Las Vegas

Explore weekly flight availability from Idaho to Las Vegas. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 23, 2025.

The most flights from USID to LAS are scheduled on a Monday (7 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 on average).

Related info for your journey

Find useful and relevant information for your journey from Idaho to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Las Vegas from Idaho?

    Las Vegas Harry Reid Intl (LAS) is the airport you will fly into if you book a flight from Idaho to Las Vegas. It is only a 6.2 mi journey from Harry Reid Intl (LAS) to Las Vegas’s city center.

  • How popular is this Idaho to Las Vegas flight route?

    The Idaho to Las Vegas Harry Reid Intl flight path was viewed by 90 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Idaho to Las Vegas?

    For as low as $108, Breeze Airways can have you in Las Vegas from Idaho in 1h 40m. The distance between Idaho and Las Vegas is about 443 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Idaho to Las Vegas one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $34. Allegiant Air flights start at $48 while deals on Alaska Airlines start at $62 one-way.

  • What are the most popular routes from Idaho to Las Vegas?

    Most travelers choose Spokane - Las Vegas Harry Reid Intl, Boise Air Term. Gowen Fld - Las Vegas Harry Reid Intl or Jackson Hole - Las Vegas Harry Reid Intl when deciding on the best route from Idaho to Las Vegas.

  • What are the most reliable airlines from Idaho to Las Vegas?

    The top 3 most reliable airlines when flying from Idaho to Las Vegas are Horizon Air (91%), Southwest (86%) and Alaska Airlines (84%).

  • What are the cheapest flights from Idaho to Las Vegas?

    On average you can expect to pay $299 for a flight from Idaho to Las Vegas. The cheapest flight overall is $72 while the most popular route, (Spokane - Las Vegas Harry Reid Intl) is currently priced at $78.

  • Can I find deals for flights from Idaho to Las Vegas that include hotel bookings?

    Yes. In addition to deals on Idaho to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho to Las Vegas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Las Vegas.

  • Can I find deals for business class flights from Idaho to Las Vegas?

    Yes. Cheapflights offers flight deals from Idaho to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Idaho to Las Vegas?

    Currently, September is the cheapest month in which you can book a flight from Idaho to Las Vegas (average of $46). Flying from Idaho to Las Vegas in December is currently the most expensive (average of $81). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Paradise
Henderson
North Las Vegas
Kingman
Winchester
Primm
Sunrise Manor
Mesquite
Boulder City
Needles

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Alternative routes for Idaho to Las Vegas

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Top 9 airlines flying from Idaho to Las Vegas

Discover the top 9 airlines that operate flights from Idaho to Las Vegas. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$48Average$133FlexibilityNo cancel feeOn-time65%
FrontierCheapest$78Average$189FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$78Average$169FlexibilityNo cancel feeOn-time88%
Hawaiian AirlinesCheapest$78Average$194FlexibilityNo cancel feeOn-time85%
DeltaCheapest$79Average$339FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$118Average$351FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$137Average$287FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$186Average$346FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$279Average$370FlexibilityNo cancel feeOn-time71%

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