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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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LAS
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap 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 September 15, 2025.

Round-trip from

$80
(Cheapflightsfares)

One-way from

$43
(eDestinos)

Popular in

May

Cheapest in

September

Average price

$167

Good round-trip deal

$96 or less

Good one-way deal

$71 or less
From Idaho to Las Vegas Harry Reid Intl
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One-way flight from Idaho to Las Vegas Harry Reid Intl
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Highest demand for flights based on searches. 13% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Idaho to Las Vegas Harry Reid Intl.
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Price to beat on a one-way flight from Idaho to Las Vegas Harry Reid Intl.
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Find 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 September 15, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 12/510:41 pmBOI - LAS
Nonstop1h 49mAllegiant Air
Fri 12/1212:51 pmLAS - BOI
Nonstop1h 53mAllegiant Air
Deal found 9/13$80
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 11/177:56 pmIDA - LAS
Nonstop1h 43mAllegiant Air
Fri 11/2112:09 pmLAS - IDA
Nonstop1h 46mAllegiant Air
Deal found 9/14$84
This Southwest deal was found by Cheapflights users on 9/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/147:20 pmBOI - LAS
Nonstop1h 45mSouthwest
Tue 10/217:45 amLAS - BOI
1 stop5h 40mSouthwest
Deal found 9/13$94
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 9/299:39 pmIDA - LAS
Nonstop1h 44mAllegiant Air
Fri 10/31:25 pmLAS - IDA
Nonstop1h 49mAllegiant Air
Deal found 9/13$96
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 12/17:58 pmIDA - LAS
Nonstop1h 45mAllegiant Air
Fri 12/510:27 amLAS - IDA
Nonstop1h 49mAllegiant Air
Deal found 9/13$98
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 10/67:40 pmIDA - LAS
Nonstop1h 43mAllegiant Air
Fri 10/101:25 pmLAS - IDA
Nonstop1h 49mAllegiant Air
Deal found 9/14$100
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 11/2410:45 pmBOI - LAS
Nonstop1h 48mAllegiant Air
Fri 12/512:51 pmLAS - BOI
Nonstop1h 53mAllegiant Air
Deal found 9/15$105
This Cheapflightsfares deal was found by Cheapflights users on 9/12. 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 9/269:26 pmBOI - LAS
Nonstop1h 57mSpirit Airlines
Sat 10/410:26 amLAS - BOI
Nonstop1h 55mSpirit Airlines
Deal found 9/12$108
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 10/207:40 pmIDA - LAS
Nonstop1h 43mAllegiant Air
Fri 10/241:25 pmLAS - IDA
Nonstop1h 49mAllegiant Air
Deal found 9/14$109
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Sat 10/42:16 pmBOI - LAS
Nonstop1h 51mMultiple Airlines
Tue 10/78:14 pmLAS - BOI
Nonstop2h 01mMultiple Airlines
Deal found 9/13$114
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Sat 10/42:16 pmBOI - LAS
Nonstop1h 51mMultiple Airlines
Wed 10/88:14 pmLAS - BOI
Nonstop2h 01mMultiple Airlines
Deal found 9/13$115
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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.
Thu 10/29:08 pmGEG - LAS
Nonstop2h 14mAllegiant Air
Thu 10/95:55 pmLAS - GEG
Nonstop2h 23mAllegiant Air
Deal found 9/15$115

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 September 15, 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

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Wed 11/12

1:40 pm-2:36 pm

Nonstop1h 56m

Las Vegas Harry Reid Intl

Sat 11/15

8:50 pm-11:49 pm

Nonstop1h 59m

$137

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Thu 11/13

7:40 pm-10:25 pm

1 stop3h 45m

Las Vegas Harry Reid Intl

Sat 11/15

6:25 am-1:35 pm

1 stop6h 10m

$145

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 10/14

8:02 am-9:03 am

Nonstop2h 01m

Las Vegas Harry Reid Intl

Sat 10/18

8:14 pm-11:15 pm

Nonstop2h 01m

$147

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Wed 10/15

7:20 pm-8:05 pm

Nonstop1h 45m

Las Vegas Harry Reid Intl

Sat 10/18

5:40 am-10:55 am

1 stop4h 15m

$147

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 11/11

6:10 am-7:10 am

Nonstop2h 00m

Las Vegas Harry Reid Intl

Sat 11/15

6:25 am-1:35 pm

1 stop6h 10m

$147

SpokaneLas Vegas

GEG - LAS

GEGLAS

Spokane

Sun 11/2

5:10 am-10:41 am

1 stop5h 31m

Las Vegas Harry Reid Intl

Thu 11/6

4:05 pm-11:29 pm

1 stop7h 24m

$151

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Wed 11/12

7:30 am-12:52 pm

1 stop6h 22m

Las Vegas Harry Reid Intl

Sat 11/15

9:21 am-3:14 pm

1 stop4h 53m

$157

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 11/11

2:20 pm-9:00 pm

1 stop7h 40m

Las Vegas Harry Reid Intl

Sat 11/15

8:50 pm-11:49 pm

Nonstop1h 59m

$157

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 10/21

4:46 pm-10:30 pm

1 stop6h 44m

Las Vegas Harry Reid Intl

Sat 10/25

5:50 pm-10:52 pm

1 stop4h 02m

$157

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 3/3

5:33 pm-6:29 pm

Nonstop1h 56m

Las Vegas Harry Reid Intl

Thu 3/5

8:28 pm-11:18 pm

Nonstop1h 50m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

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, August is the cheapest month in which you can book a flight from Idaho to Las Vegas (average of $198). Flying from Idaho to Las Vegas in March is currently the most expensive (average of $269). 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 September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Las Vegas as you normally would.

How much does it cost to fly round-trip from Idaho to Las Vegas?

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 91 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 $137, Hawaiian Airlines can have you in Las Vegas from Idaho in 1h 56m. The distance between Idaho and Las Vegas is about 520 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 Southwest, which is currently one of the cheapest options available, starting at $52. Allegiant Air flights start at $60 while deals on Alaska Airlines start at $69 one-way.

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

    Most travelers choose Boise Air Term. Gowen Fld - Las Vegas Harry Reid Intl, Spokane - Las Vegas Harry Reid Intl or Idaho Falls Fanning Field - 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 Southwest (92%), Spirit Airlines (83%) and SkyWest Airlines (74%).

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

    On average you can expect to pay $171 for a flight from Idaho to Las Vegas. The cheapest flight overall is $34 while the most popular route, (Boise Air Term. Gowen Fld - Las Vegas Harry Reid Intl) is currently priced at $80.

  • 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, August is the cheapest month in which you can book a flight from Idaho to Las Vegas (average of $198). Flying from Idaho to Las Vegas in March is currently the most expensive (average of $269). 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
Sunrise Manor
Winchester
Kingman
Primm
Mount Charleston
Mesquite
Needles
Boulder City

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Top 8 airlines flying from Idaho to Las Vegas

Discover the top 8 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$50Average$137FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$76Average$144FlexibilityNo cancel feeOn-time88%
Hawaiian AirlinesCheapest$78Average$193FlexibilityNo cancel feeOn-time85%
FrontierCheapest$109Average$244FlexibilityNo cancel feeOn-time62%
DeltaCheapest$121Average$416FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$146Average$368FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$154Average$288FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$196Average$528FlexibilityNo cancel feeOn-time69%

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