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$47+ 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LAS
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
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 November 26, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$72
(Mytrip)

One-way from

$47
(Kiwi.com)

Popular in

May

Cheapest in

September

Average price

$238

Good round-trip deal

$108 or less

Good one-way deal

$65 or less
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Las Vegas Harry Reid Intl flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Las Vegas Harry Reid Intl flights.
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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. 10% potential increase in price ($26 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 November 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 November 26, 2025.

This Mytrip deal was found by Cheapflights users on 11/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/88:16 pmIDA - LAS
Nonstop1h 45mAllegiant Air
Sat 12/139:10 amLAS - IDA
Nonstop1h 49mAllegiant Air
Deal found 11/25$72
This Booking.com deal was found by Cheapflights users on 11/24. 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.
Fri 12/128:16 pmIDA - LAS
Nonstop1h 45mAllegiant Air
Sat 12/139:10 amLAS - IDA
Nonstop1h 49mAllegiant Air
Deal found 11/24$80
This Booking.com deal was found by Cheapflights users on 11/24. 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.
Sun 12/74:39 pmIDA - LAS
Nonstop1h 45mAllegiant Air
Fri 12/1210:27 amLAS - IDA
Nonstop1h 49mAllegiant Air
Deal found 11/24$84
This Cheapflightsfares deal was found by Cheapflights users on 11/25. 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.
Wed 12/312:19 pmIDA - LAS
Nonstop1h 45mAllegiant Air
Thu 12/41:00 pmLAS - IDA
Nonstop1h 49mAllegiant Air
Deal found 11/25$88
This Cheapflightsfares deal was found by Cheapflights users on 11/24. 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.
Wed 12/312:19 pmIDA - LAS
Nonstop1h 45mAllegiant Air
Fri 12/510:27 amLAS - IDA
Nonstop1h 49mAllegiant Air
Deal found 11/24$92
This Cheapflightsfares deal was found by Cheapflights users on 11/25. 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.
Sun 12/79:13 pmGEG - LAS
Nonstop2h 23mAllegiant Air
Thu 12/115:54 pmLAS - GEG
Nonstop2h 29mAllegiant Air
Deal found 11/25$112
This Gotogate deal was found by Cheapflights users on 11/25. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/149:13 pmGEG - LAS
Nonstop2h 23mAllegiant Air
Thu 12/184:32 pmLAS - GEG
Nonstop2h 29mAllegiant Air
Deal found 11/25$115
This Kiwi.com deal was found by Cheapflights users on 11/24. 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.
Thu 12/44:39 pmIDA - LAS
Nonstop1h 45mAllegiant Air
Sat 12/139:10 amLAS - IDA
Nonstop1h 49mAllegiant Air
Deal found 11/24$116
This Cheapflightsfares deal was found by Cheapflights users on 11/25. 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 12/49:13 pmGEG - LAS
Nonstop2h 23mAllegiant Air
Thu 12/115:54 pmLAS - GEG
Nonstop2h 29mAllegiant Air
Deal found 11/25$117
This Kiwi.com deal was found by Cheapflights users on 11/24. 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 12/17:54 pmGEG - LAS
Nonstop2h 18mAllegiant Air
Thu 12/45:54 pmLAS - GEG
Nonstop2h 29mAllegiant Air
Deal found 11/24$118
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Sun 12/74:39 pmIDA - LAS
Nonstop1h 45mAllegiant Air
Sat 12/139:10 amLAS - IDA
Nonstop1h 49mAllegiant Air
Deal found 11/25$119
This Kiwi.com deal was found by Cheapflights users on 11/24. 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.
Thu 12/44:39 pmIDA - LAS
Nonstop1h 45mAllegiant Air
Fri 12/1210:27 amLAS - IDA
Nonstop1h 49mAllegiant Air
Deal found 11/24$120

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 November 26, 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

Tue 1/6

9:00 am-9:54 am

Nonstop1h 54m

Las Vegas Harry Reid Intl

Tue 1/13

8:50 am-11:48 am

Nonstop1h 58m

$137

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 1/20

7:59 pm-8:53 pm

Nonstop1h 54m

Las Vegas Harry Reid Intl

Wed 1/21

8:50 am-11:48 am

Nonstop1h 58m

$137

SpokaneLas Vegas

GEG - LAS

GEGLAS

Spokane

Sat 12/20

5:55 am-12:07 pm

1 stop6h 12m

Las Vegas Harry Reid Intl

Tue 1/6

8:00 am-3:00 pm

1 stop7h 00m

$143

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Wed 1/14

6:05 am-7:00 am

Nonstop1h 55m

Las Vegas Harry Reid Intl

Fri 1/16

4:40 pm-10:55 pm

1 stop5h 15m

$147

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 12/16

11:14 am-12:14 pm

Nonstop2h 00m

Las Vegas Harry Reid Intl

Sat 12/20

7:10 pm-10:07 pm

Nonstop1h 57m

$147

SpokaneLas Vegas

GEG - LAS

GEGLAS

Spokane

Sun 1/11

6:00 pm-11:12 pm

1 stop5h 12m

Las Vegas Harry Reid Intl

Sat 1/17

1:43 pm-7:03 pm

1 stop5h 20m

$155

SpokaneLas Vegas

GEG - LAS

GEGLAS

Spokane

Sun 2/22

5:00 am-9:33 am

1 stop4h 33m

Las Vegas Harry Reid Intl

Sat 2/28

6:00 am-12:29 pm

1 stop6h 29m

$155

SpokaneLas Vegas

GEG - LAS

GEGLAS

Spokane

Fri 2/20

3:40 pm-10:00 pm

1 stop6h 20m

Las Vegas Harry Reid Intl

Tue 2/24

6:05 am-12:07 pm

1 stop6h 02m

$156

SpokaneLas Vegas

GEG - LAS

GEGLAS

Spokane

Fri 3/6

11:20 am-5:49 pm

1 stop6h 29m

Las Vegas Harry Reid Intl

Wed 3/11

6:59 pm-12:06 am

1 stop5h 07m

$156

SpokaneLas Vegas

GEG - LAS

GEGLAS

Spokane

Mon 12/22

7:00 pm-11:59 pm

1 stop4h 59m

Las Vegas Harry Reid Intl

Tue 1/6

6:05 am-10:45 am

1 stop4h 40m

$156

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

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 June is currently the most expensive (average of $80). 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 November 26, 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 57% 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 November 25, 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 November 26, 2025.

The most flights from USID to LAS are scheduled on a Monday (8 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (1 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 88 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, Alaska Airlines can have you in Las Vegas from Idaho in 1h 54m. 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 Allegiant Air, which is currently one of the cheapest options available, starting at $66. Frontier flights start at $68 while deals on Alaska Airlines start at $69 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 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 SkyWest Airlines (90%), Alaska Airlines (90%) and Southwest (84%).

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

    On average you can expect to pay $304 for a flight from Idaho to Las Vegas. The cheapest flight overall is $58 while the most popular route, (Spokane - Las Vegas Harry Reid Intl) is currently priced at $86.

  • 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 June is currently the most expensive (average of $80). 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
Winchester
Kingman
Primm
Sunrise Manor
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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$52Average$136FlexibilityNo cancel feeOn-time65%
FrontierCheapest$78Average$189FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$78Average$161FlexibilityNo cancel feeOn-time88%
Hawaiian AirlinesCheapest$78Average$194FlexibilityNo cancel feeOn-time85%
DeltaCheapest$79Average$351FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$130Average$381FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$137Average$287FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$186Average$367FlexibilityNo cancel feeOn-time69%

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