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Idaho Falls

$54+ 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — IDA
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
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 diciembre 12, 2025.

This Booking.com deal was found by Cheapflights users on 12/11. 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. 12/1911:31 amLAS - IDA
Nonstop1h 49mAllegiant Air
lun. 12/229:20 pmIDA - LAS
Nonstop1h 45mAllegiant Air
Deal found 12/11$147
This Gotogate deal was found by Cheapflights users on 12/11. 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.
lun. 12/1510:27 amLAS - IDA
Nonstop1h 49mAllegiant Air
lun. 12/158:16 pmIDA - LAS
Nonstop1h 45mAllegiant Air
Deal found 12/11$196
This Booking.com deal was found by Cheapflights users on 12/11. 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.
dom. 12/141:00 pmLAS - IDA
Nonstop1h 49mAllegiant Air
lun. 12/158:16 pmIDA - LAS
Nonstop1h 45mAllegiant Air
Deal found 12/11$207
This Kiwi.com deal was found by Cheapflights users on 12/10. 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. 12/261:23 pmLAS - IDA
Nonstop1h 49mAllegiant Air
lun. 12/2910:52 pmIDA - LAS
Nonstop1h 43mAllegiant Air
Deal found 12/10$215
This Mytrip deal was found by Cheapflights users on 12/11. 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.
lun. 12/1510:27 amLAS - IDA
Nonstop1h 49mAllegiant Air
vie. 12/199:20 pmIDA - LAS
Nonstop1h 45mAllegiant Air
Deal found 12/11$278
This Mytrip deal was found by Cheapflights users on 12/11. 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. 12/199:05 amLAS - IDA
1 stop10h 25mMultiple Airlines
lun. 12/229:20 pmIDA - LAS
Nonstop1h 45mMultiple Airlines
Deal found 12/11$317
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
dom. 12/141:00 pmLAS - IDA
Nonstop1h 49mMultiple Airlines
lun. 12/152:06 pmIDA - LAS
1 stop6h 39mMultiple Airlines
Deal found 12/11$320
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
lun. 12/156:00 amLAS - IDA
1 stop7h 36mMultiple Airlines
lun. 12/158:16 pmIDA - LAS
Nonstop1h 45mMultiple Airlines
Deal found 12/11$329
This Kiwi.com deal was found by Cheapflights users on 12/10. 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. 12/261:23 pmLAS - IDA
Nonstop1h 49mMultiple Airlines
lun. 12/299:37 pmIDA - LAS
1 stop26h 02mMultiple Airlines
Deal found 12/10$339
This United Airlines deal was found by Cheapflights users on 12/10. 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.
vie. 12/264:23 pmLAS - IDA
1 stop5h 36mUnited Airlines
lun. 12/295:00 amIDA - LAS
1 stop5h 15mUnited Airlines
Deal found 12/10$341
This Delta deal was found by Cheapflights users on 12/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/265:30 pmLAS - IDA
1 stop4h 22mDelta
lun. 1/56:35 pmIDA - LAS
1 stop5h 05mDelta
Deal found 12/10$370

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 diciembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$196
(Kiwi.com)

One-way from

$54
(Super.com)

Popular in

December

Cheapest in

November

Average price

$269

Good round-trip deal

$104 or less

Good one-way deal

$93 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.
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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. 4% potential increase in price ($6 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($11 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 Las Vegas Harry Reid Intl to Idaho Falls Fanning Field.
Search Deals
Price to beat on a one-way 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 diciembre 12, 2025.
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

sáb. 1/10

9:00 am-3:31 pm

1 stop5h 31m

Idaho Falls Fanning Field

sáb. 1/17

2:40 pm-8:32 pm

1 stop6h 52m

$248

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

dom. 1/11

7:50 pm-8:30 pm

1 stop23h 40m

Idaho Falls Fanning Field

vie. 1/16

3:09 pm-5:47 pm

1 stop27h 38m

$257

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

sáb. 1/10

9:00 am-3:31 pm

1 stop5h 31m

Idaho Falls Fanning Field

lun. 1/12

2:40 pm-7:02 pm

1 stop5h 22m

$261

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

sáb. 5/9

5:15 am-1:29 pm

1 stop7h 14m

Idaho Falls Fanning Field

mié. 5/13

2:35 pm-7:02 pm

1 stop5h 27m

$261

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

vie. 1/23

7:52 pm-6:18 pm

2 stops21h 26m

Idaho Falls Fanning Field

lun. 1/26

6:58 pm-11:12 pm

1 stop5h 14m

$277

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

sáb. 1/10

2:00 pm-10:59 pm

2 stops7h 59m

Idaho Falls Fanning Field

sáb. 1/17

6:58 pm-11:12 pm

1 stop5h 14m

$304

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

vie. 1/9

11:23 am-2:19 pm

Nonstop1h 56m

$54

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

vie. 12/19

11:31 am-2:20 pm

Nonstop1h 49m

$76

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

vie. 1/9

11:26 am-8:30 pm

1 stop8h 04m

$111

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

jue. 1/15

1:43 pm-10:59 pm

1 stop8h 16m

$117

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 16 results
1
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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Las Vegas-Idaho Falls flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 $220). 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 diciembre 12, 2025.

It’s optimal to fly from Las Vegas to Idaho Falls in the afternoon. By choosing this option you can save up to 76% on the cost of your flight, compared to a flight in the evening.

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 diciembre 12, 2025.
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
8,005 reviews

Food

7.3

Boarding

8.1

Entertainment

7.9

Overall

7.9

Comfort

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
8,005 reviews
Delta
7.9
Good
8,005 reviews

Food

7.3

Boarding

8.1

Entertainment

7.9

Overall

7.9

Comfort

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
699 reviews
Delta
7.9
Good
8,005 reviews

Food

7.3

Boarding

8.1

Entertainment

7.9

Overall

7.9

Comfort

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 $248, United Airlines can have you in Idaho Falls from Las Vegas in 5h 31m. 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 ($59), and Delta ($149) offers the cheapest pricing from Las Vegas to Idaho Falls. Users have found that Allegiant Air is 61% cheaper than the other options available to this destination.

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

    The cheapest airline one-way is Allegiant Air, with whom users have recently found tickets for as low as $56. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Las Vegas to Idaho Falls for a low price.

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

    On average you can expect to pay $98 for a flight from Las Vegas to Idaho Falls. The cheapest flight overall is $93 while the most popular route, (Las Vegas Harry Reid Intl - Idaho Falls Fanning Field) is currently priced at $147.

  • 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 $220). 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 diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$85Average$114FlexibilityNo cancel feeOn-time88%
DeltaCheapest$149Average$307FlexibilityNo cancel feeOn-timeN/A

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