HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Las Vegas

$40+ 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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LAS
Aug 23 — Aug 301
Sun 8/23
Sun 8/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Idaho to Las Vegas with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 July 24, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 7/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1410:54 pm
IDA
-
LAS
Nonstop1h 43m
Allegiant Air
Fri 8/287:35 am
LAS
-
IDA
Nonstop1h 47m
Allegiant Air
Deal found 7/20$89
This Cheapflightsfares deal was found by Cheapflights users on 7/22. 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.
Mon 8/1010:54 pm
IDA
-
LAS
Nonstop1h 43m
Allegiant Air
Fri 8/141:17 pm
LAS
-
IDA
Nonstop1h 48m
Allegiant Air
Deal found 7/22$93
This Kissandfly.com deal was found by Cheapflights users on 7/19. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1410:54 pm
IDA
-
LAS
Nonstop1h 43m
Allegiant Air
Mon 8/171:17 pm
LAS
-
IDA
Nonstop1h 48m
Allegiant Air
Deal found 7/19$95
This Cheapflightsfares deal was found by Cheapflights users on 7/19. 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 8/710:54 pm
IDA
-
LAS
Nonstop1h 43m
Allegiant Air
Fri 8/287:35 am
LAS
-
IDA
Nonstop1h 47m
Allegiant Air
Deal found 7/19$97
This Expedia deal was found by Cheapflights users on 7/23. 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.
Mon 9/78:36 pm
IDA
-
LAS
Nonstop1h 45m
Allegiant Air
Fri 9/119:01 am
LAS
-
IDA
Nonstop1h 49m
Allegiant Air
Deal found 7/23$98
This Cheapflightsfares deal was found by Cheapflights users on 7/18. 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 8/1010:54 pm
IDA
-
LAS
Nonstop1h 43m
Allegiant Air
Mon 8/171:17 pm
LAS
-
IDA
Nonstop1h 48m
Allegiant Air
Deal found 7/18$101
This Cheapflightsfares deal was found by Cheapflights users on 7/22. 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 8/285:08 pm
IDA
-
LAS
Nonstop1h 43m
Allegiant Air
Mon 8/3111:00 am
LAS
-
IDA
Nonstop1h 47m
Allegiant Air
Deal found 7/22$105
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Fri 8/211:45 pm
TWF
-
LAS
Nonstop1h 35m
Breeze Airways
Fri 9/119:25 am
LAS
-
TWF
Nonstop1h 35m
Breeze Airways
Deal found 7/21$107
This Kiwi.com deal was found by Cheapflights users on 7/19. 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 8/241:45 pm
TWF
-
LAS
Nonstop1h 35m
Breeze Airways
Fri 8/289:25 am
LAS
-
TWF
Nonstop1h 35m
Breeze Airways
Deal found 7/19$108
This Cheapflightsfares deal was found by Cheapflights users on 7/18. 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 10/308:28 pm
IDA
-
LAS
Nonstop1h 44m
Allegiant Air
Mon 11/29:48 am
LAS
-
IDA
Nonstop1h 48m
Allegiant Air
Deal found 7/18$109
This Cheapflightsfares deal was found by Cheapflights users on 7/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:54 pm
IDA
-
LAS
Nonstop1h 43m
Allegiant Air
Mon 8/248:00 am
LAS
-
IDA
Nonstop1h 47m
Allegiant Air
Deal found 7/20$110
This Kiwi.com deal was found by Cheapflights users on 7/19. 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 8/171:45 pm
TWF
-
LAS
Nonstop1h 35m
Breeze Airways
Mon 8/249:25 am
LAS
-
TWF
Nonstop1h 35m
Breeze Airways
Deal found 7/19$113

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 July 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$89
(Cheapflightsfares)

One-way from

$40
(Frontier)

Popular in

March

Cheapest in

September

Average price

$330

Good round-trip deal

$111 or less

Good one-way deal

$61 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. 12% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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 July 24, 2026.
Use the filters below to find and compare flights from Idaho to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Twin FallsLas Vegas

TWF - LAS

TWFLAS

Twin Falls Joslin

Mon 9/21

1:45 pm-2:20 pm

Nonstop1h 35m

Las Vegas Harry Reid Intl

Fri 10/2

9:25 am-12:00 pm

Nonstop1h 35m

$107

SpokaneLas Vegas

GEG - LAS

GEGLAS

Spokane

Sun 9/13

6:00 am-9:42 am

1 stop27h 42m

Las Vegas Harry Reid Intl

Thu 10/8

9:38 am-2:40 pm

1 stop5h 02m

$173

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 10/13

1:25 pm-4:20 pm

1 stop3h 55m

Las Vegas Harry Reid Intl

Sat 10/17

1:50 pm-4:35 pm

Nonstop1h 45m

$175

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 9/15

6:00 am-6:45 am

Nonstop1h 45m

Las Vegas Harry Reid Intl

Thu 9/17

2:15 pm-10:50 pm

2 stops7h 35m

$184

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 8/11

3:40 pm-6:55 pm

1 stop4h 15m

Las Vegas Harry Reid Intl

Thu 8/13

12:00 pm-7:10 pm

2 stops6h 10m

$194

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Thu 8/20

2:45 pm-8:05 pm

1 stop6h 20m

Las Vegas Harry Reid Intl

Thu 8/27

10:05 am-7:10 pm

2 stops8h 05m

$194

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Wed 9/9

7:40 am-12:10 pm

2 stops5h 30m

Las Vegas Harry Reid Intl

Sat 9/12

2:20 pm-9:35 pm

2 stops6h 15m

$199

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 8/11

2:20 pm-3:10 pm

Nonstop1h 50m

Las Vegas Harry Reid Intl

Sat 8/15

9:20 am-12:15 pm

Nonstop1h 55m

$203

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 8/18

11:30 am-3:20 pm

1 stop4h 50m

Las Vegas Harry Reid Intl

Thu 8/20

7:30 am-10:15 am

Nonstop1h 45m

$207

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 10/13

12:55 pm-5:50 pm

2 stops5h 55m

Las Vegas Harry Reid Intl

Fri 10/16

7:25 am-1:20 pm

1 stop4h 55m

$213

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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 $169). Flying from Idaho to Las Vegas in February is currently the most expensive (average of $321). 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 July 24, 2026.

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 21% on your trip compared to booking a flight in the morning.

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 July 24, 2026.

The most flights from USID to LAS are scheduled on a Monday (6 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

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

Airfare is below average for this route at the moment.
Idaho to Las Vegas flights typically cost between $194 and $374 in September.
The cheapest round-trip price found within the last 5 days was $138 on Frontier (Sep 17-Sep 20).

How far ahead should I book a flight from Idaho to Las Vegas?

The price you pay for your flight from Idaho to Las Vegas may vary depending on when you book. For the best chance of a lower fare, look to book 74 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 July 18, 2026.

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 at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 54 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 $107, Breeze Airways can have you in Las Vegas from Idaho in 1h 35m. 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 Allegiant Air, which is currently one of the cheapest options available, starting at $48. Alaska Airlines flights start at $62 while deals on Southwest start at $65 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 SkyWest Airlines (88%), Alaska Airlines (85%) and Horizon Air (83%).

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

    On average you can expect to pay $330 for a flight from Idaho to Las Vegas. The cheapest flight overall is $130 while the most popular route, (Boise Air Term. Gowen Fld - Las Vegas Harry Reid Intl) is currently priced at $125.

  • 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 $169). Flying from Idaho to Las Vegas in February is currently the most expensive (average of $321). 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
Mesquite
North Las Vegas
Kingman
Winchester
Boulder City
Needles
Sunrise Manor

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Idaho to Las Vegas

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Las Vegas flights
John F Kennedy Intl to Las Vegas flights
Los Angeles to Las Vegas flights
Seattle to Las Vegas flights
San Francisco to Las Vegas flights
O'Hare Intl to Las Vegas flights
Hobby to Las Vegas flights
Dallas/Fort Worth to Las Vegas flights
Atlanta to Las Vegas flights
Dulles Intl to Las Vegas flights
Detroit to Las Vegas flights
George Bush Intcntl to Las Vegas flights
LaGuardia to Las Vegas flights
Boston to Las Vegas flights
Baltimore to Las Vegas flights
Santa Ana to Las Vegas flights
Reagan-National to Las Vegas flights
Denver to Las Vegas flights
Ontario to Las Vegas flights
Orlando to Las Vegas flights
San Jose to Las Vegas flights
Midway to Las Vegas flights
Burbank to Las Vegas flights
Austin to Las Vegas flights
Fort Lauderdale to Las Vegas flights
Minneapolis to Las Vegas flights
Cleveland to Las Vegas flights
Philadelphia to Las Vegas flights
Portland to Las Vegas flights
Charlotte to Las Vegas flights
Love Field to Las Vegas flights
San Antonio to Las Vegas flights
Tampa to Las Vegas flights
Sacramento to Las Vegas flights
Nashville to Las Vegas flights
Cincinnati to Las Vegas flights
San Diego to Las Vegas flights
Honolulu to Las Vegas flights
St. Louis to Las Vegas flights
Raleigh to Las Vegas flights
Oakland to Las Vegas flights
Kansas City to Las Vegas flights
Stewart to Las Vegas flights
Sky Harbor Intl to Las Vegas flights
Salt Lake City to Las Vegas flights
Pittsburgh to Las Vegas flights
Miami to Las Vegas flights
Columbus to Las Vegas flights
Memphis to Las Vegas flights
Dallas/Fort Worth to Reno flights

Top 10 airlines flying from Idaho to Las Vegas

Discover the top 10 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 July 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$56Average$233FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$68Average$238FlexibilityNo cancel feeOn-time85%
DeltaCheapest$78Average$363FlexibilityNo cancel feeOn-timeN/A
Allegiant AirCheapest$80Average$170FlexibilityNo cancel feeOn-time88%
Breeze AirwaysCheapest$83Average$111FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$117Average$298FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$141Average$321FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$186Average$321FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$191Average$343FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$279Average$542FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.