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Idaho Falls

$53+ Cheap flights from Las Vegas to Idaho Falls (LAS - IDA)

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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — IDA
feb. 25 — mar. 41
mié. 2/25
mié. 3/4
1 adult, Economy
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Cheap flight deals from Las Vegas to Idaho Falls

Cheapest flights from Las Vegas to Idaho Falls
Explore the most affordable flight options available from Las Vegas to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 26, 2026.

This Mytrip deal was found by Cheapflights users on 1/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/1312:45 pm
LAS
-
IDA
Nonstop1h 46m
Allegiant Air
lun. 2/2310:31 pm
IDA
-
LAS
Nonstop1h 48m
Allegiant Air
Deal found 1/24$102
This Booking.com deal was found by Cheapflights users on 1/26. 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.
vie. 6/510:05 am
LAS
-
IDA
Nonstop1h 46m
Allegiant Air
lun. 6/87:39 pm
IDA
-
LAS
Nonstop1h 43m
Allegiant Air
Deal found 1/26$115
This Mytrip deal was found by Cheapflights users on 1/25. 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.
vie. 2/1312:45 pm
LAS
-
IDA
Nonstop1h 46m
Allegiant Air
lun. 2/1610:31 pm
IDA
-
LAS
Nonstop1h 48m
Allegiant Air
Deal found 1/25$124
This Kiwi.com deal was found by Cheapflights users on 1/24. 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.
jue. 5/147:50 pm
LAS
-
IDA
1 stop24h 41m
Multiple Airlines
lun. 5/1810:21 pm
IDA
-
LAS
Nonstop1h 41m
Multiple Airlines
Deal found 1/24$210
This Booking.com deal was found by Cheapflights users on 1/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/911:23 am
LAS
-
IDA
Nonstop1h 56m
Allegiant Air
vie. 2/1310:31 pm
IDA
-
LAS
Nonstop1h 48m
Allegiant Air
Deal found 1/25$224
This Mytrip deal was found by Cheapflights users on 1/25. 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.
vie. 3/612:45 pm
LAS
-
IDA
Nonstop1h 46m
Allegiant Air
vie. 3/1310:13 pm
IDA
-
LAS
Nonstop1h 46m
Allegiant Air
Deal found 1/25$233
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
vie. 3/611:25 am
LAS
-
IDA
1 stop9h 15m
Multiple Airlines
vie. 3/1310:13 pm
IDA
-
LAS
Nonstop1h 46m
Multiple Airlines
Deal found 1/25$237
This Kiwi.com deal was found by Cheapflights users on 1/26. 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.
vie. 6/52:04 pm
LAS
-
IDA
1 stop7h 41m
Multiple Airlines
lun. 6/87:39 pm
IDA
-
LAS
Nonstop1h 43m
Multiple Airlines
Deal found 1/26$238
This Alaska Airlines deal was found by Cheapflights users on 1/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/2710:02 am
LAS
-
IDA
1 stop5h 41m
Alaska Airlines
lun. 3/25:20 pm
IDA
-
LAS
1 stop6h 36m
Alaska Airlines
Deal found 1/23$261
This Kiwi.com deal was found by Cheapflights users on 1/24. 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.
vie. 2/1312:45 pm
LAS
-
IDA
Nonstop1h 46m
Multiple Airlines
lun. 2/234:21 pm
IDA
-
LAS
1 stop26h 26m
Multiple Airlines
Deal found 1/24$268
This United Airlines deal was found by Cheapflights users on 1/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/107:30 am
LAS
-
IDA
1 stop7h 01m
United Airlines
sáb. 2/142:40 pm
IDA
-
LAS
1 stop6h 51m
United Airlines
Deal found 1/26$279

Find flight deals from Las Vegas to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from Las Vegas (LAS) to Idaho Falls (IDA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$102
(Mytrip)

One-way from

$53
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$111

Good round-trip deal

$117 or less
Provider with most accurate pricing for Las Vegas Harry Reid Intl-Idaho Falls Fanning Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Las Vegas Harry Reid Intl-Idaho Falls Fanning Field flights.
Search Deals
From Las Vegas Harry Reid Intl to Idaho Falls Fanning Field
Search Deals
One-way flight from Las Vegas Harry Reid Intl to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Las Vegas Harry Reid Intl to Idaho Falls Fanning Field.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Las Vegas to Idaho Falls 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 enero 26, 2026.
Use the filters below to find and compare flights from Las Vegas to Idaho Falls that are best for you.

Fly from

Las Vegas

Fly to

Idaho Falls

Route

Depart

Return

Price

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

vie. 2/13

12:45 pm-3:31 pm

Nonstop1h 46m

Idaho Falls Fanning Field

lun. 2/23

10:31 pm-11:19 pm

Nonstop1h 48m

$102

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

vie. 6/5

10:05 am-12:51 pm

Nonstop1h 46m

Idaho Falls Fanning Field

lun. 6/8

7:39 pm-8:22 pm

Nonstop1h 43m

$115

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

vie. 3/6

12:45 pm-3:31 pm

Nonstop1h 46m

Idaho Falls Fanning Field

vie. 3/13

10:13 pm-10:59 pm

Nonstop1h 46m

$233

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

vie. 6/5

2:04 pm-10:45 pm

1 stop7h 41m

Idaho Falls Fanning Field

lun. 6/8

7:39 pm-8:22 pm

Nonstop1h 43m

$238

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

vie. 2/27

10:02 am-4:43 pm

1 stop5h 41m

Idaho Falls Fanning Field

lun. 3/2

5:20 pm-10:56 pm

1 stop6h 36m

$261

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

mar. 6/9

5:37 am-1:24 pm

1 stop6h 47m

Idaho Falls Fanning Field

mar. 6/16

2:31 pm-8:08 pm

1 stop6h 37m

$261

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

vie. 2/13

12:45 pm-3:31 pm

Nonstop1h 46m

Idaho Falls Fanning Field

lun. 2/23

4:21 pm-5:47 pm

1 stop26h 26m

$268

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

vie. 2/13

12:45 pm-3:31 pm

Nonstop1h 46m

Idaho Falls Fanning Field

lun. 2/16

4:21 pm-5:47 pm

1 stop26h 26m

$281

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

vie. 3/6

5:58 pm-4:43 pm

2 stops21h 45m

Idaho Falls Fanning Field

vie. 3/13

10:13 pm-10:59 pm

Nonstop1h 46m

$284

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

jue. 5/14

5:30 pm-10:14 pm

1 stop3h 44m

Idaho Falls Fanning Field

dom. 5/17

6:10 am-8:50 am

1 stop3h 40m

$287

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 18 results
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2

Compare providers for flights from Las Vegas to Idaho Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Las Vegas to Idaho Falls in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Las Vegas-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Las Vegas-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Las Vegas-Idaho Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Las Vegas-Idaho Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Las Vegas-Idaho Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Las Vegas to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Las Vegas 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 Las Vegas to Idaho Falls

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

Currently, September is the cheapest month in which you can book a flight from Las Vegas to Idaho Falls (average of $52). Flying from Las Vegas to Idaho Falls in December is currently the most expensive (average of $152). 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 LAS to IDA?

Find hourly flight availability from Las Vegas to Idaho Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 26, 2026.

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

Reviews of airlines servicing Idaho Falls

Get insights into the airlines that provide service to Idaho Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho Falls. Reviews last updated enero 26, 2026.
Read through reviews of airlines operating flights from Las Vegas to Idaho Falls, such as Delta and Allegiant Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,113 reviews

Boarding

8.1

Food

7.2

Entertainment

7.8

Comfort

7.9

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,113 reviews
Delta
7.9
Good
8,113 reviews

Boarding

8.1

Food

7.2

Entertainment

7.8

Comfort

7.9

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Allegiant Air
7.2
Good
706 reviews
Delta
7.9
Good
8,113 reviews

Boarding

8.1

Food

7.2

Entertainment

7.8

Comfort

7.9

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

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

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

    For as low as $102, Allegiant Air can have you in Idaho Falls from Las Vegas in 1h 46m. Las Vegas and Idaho Falls are separated by a distance of 538 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Las Vegas to Idaho Falls round-trip?

    According to our current data, Allegiant Air ($55), and Delta ($149) offers the cheapest pricing from Las Vegas to Idaho Falls. Users have found that Allegiant Air is 62% cheaper than the other options available to this destination.

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

    On average you can expect to pay $154 for a flight from Las Vegas to Idaho Falls. The cheapest flight overall is $89 while the most popular route, (Las Vegas Harry Reid Intl - Idaho Falls Fanning Field) is currently priced at $124.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Las Vegas to Idaho Falls 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 Las Vegas to Idaho Falls?

    Currently, September is the cheapest month in which you can book a flight from Las Vegas to Idaho Falls (average of $52). Flying from Las Vegas to Idaho Falls in December is currently the most expensive (average of $152). 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 Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

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Top 2 airlines flying from Las Vegas to Idaho Falls

Discover the top 2 airlines that operate flights from Las Vegas to Idaho Falls. 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 enero 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$55Average$110FlexibilityNo cancel feeOn-time88%
DeltaCheapest$149Average$289FlexibilityNo cancel feeOn-timeN/A

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