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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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — IDA
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
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 March 10, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 3/9. 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 6/121:22 pm
LAS
-
IDA
Nonstop1h 46m
Allegiant Air
Mon 6/1510:56 pm
IDA
-
LAS
Nonstop1h 43m
Allegiant Air
Deal found 3/9$89
This Cheapflightsfares deal was found by Cheapflights users on 3/6. 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 4/1012:42 pm
LAS
-
IDA
Nonstop1h 45m
Allegiant Air
Mon 4/1310:21 pm
IDA
-
LAS
Nonstop1h 41m
Allegiant Air
Deal found 3/6$105
This Cheapflightsfares deal was found by Cheapflights users on 3/9. 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 4/612:27 pm
LAS
-
IDA
Nonstop1h 45m
Allegiant Air
Mon 4/1310:21 pm
IDA
-
LAS
Nonstop1h 41m
Allegiant Air
Deal found 3/9$118
This lastminute.com deal was found by Cheapflights users on 3/6. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2012:42 pm
LAS
-
IDA
Nonstop1h 45m
Allegiant Air
Mon 4/2710:21 pm
IDA
-
LAS
Nonstop1h 41m
Allegiant Air
Deal found 3/6$126
This Cheapflightsfares deal was found by Cheapflights users on 3/7. 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 3/2012:28 pm
LAS
-
IDA
Nonstop1h 46m
Allegiant Air
Mon 3/2310:13 pm
IDA
-
LAS
Nonstop1h 46m
Allegiant Air
Deal found 3/7$131
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 7/171:12 pm
LAS
-
IDA
Nonstop1h 48m
Allegiant Air
Mon 7/2010:47 pm
IDA
-
LAS
Nonstop1h 43m
Allegiant Air
Deal found 3/6$134
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 8/101:17 pm
LAS
-
IDA
Nonstop1h 48m
Allegiant Air
Mon 8/1710:54 pm
IDA
-
LAS
Nonstop1h 43m
Allegiant Air
Deal found 3/5$135
This Cheapflightsfares deal was found by Cheapflights users on 3/9. 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 4/2012:42 pm
LAS
-
IDA
Nonstop1h 45m
Allegiant Air
Mon 4/2010:21 pm
IDA
-
LAS
Nonstop1h 41m
Allegiant Air
Deal found 3/9$145
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 7/131:12 pm
LAS
-
IDA
Nonstop1h 48m
Allegiant Air
Mon 7/2010:47 pm
IDA
-
LAS
Nonstop1h 43m
Allegiant Air
Deal found 3/6$147
This Cheapflightsfares deal was found by Cheapflights users on 3/8. 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 3/2712:28 pm
LAS
-
IDA
Nonstop1h 46m
Allegiant Air
Mon 3/3010:13 pm
IDA
-
LAS
Nonstop1h 46m
Allegiant Air
Deal found 3/8$160

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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$105
(Cheapflightsfares)

One-way from

$54
(Cheapflightsfares)

Popular in

December

Cheapest in

November

Average price

$197

Good one-way deal

$55 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. 7% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 March 10, 2026.
Use the filters below to find and compare flights from Las Vegas to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Wed 4/15

10:28 pm-4:56 pm

1 stop17h 28m

Idaho Falls Fanning Field

Fri 4/17

10:21 pm-11:02 pm

Nonstop1h 41m

$300

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 3/20

11:46 am-10:52 pm

1 stop10h 06m

Idaho Falls Fanning Field

Mon 3/23

5:59 pm-11:59 pm

1 stop7h 00m

$329
Quickest round-trip

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Sat 3/21

5:30 am-1:30 pm

1 stop7h 00m

Idaho Falls Fanning Field

Wed 3/25

5:30 pm-10:17 pm

1 stop5h 47m

$369

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Wed 5/27

7:10 am-1:17 pm

1 stop5h 07m

Idaho Falls Fanning Field

Mon 6/1

6:00 am-4:33 pm

2 stops11h 33m

$373

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 4/24

8:54 pm-3:29 pm

1 stop17h 35m

Idaho Falls Fanning Field

Fri 5/1

4:06 pm-8:55 pm

1 stop5h 49m

$379

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 5/1

6:00 am-10:40 pm

1 stop15h 40m

Idaho Falls Fanning Field

Sat 5/2

6:00 am-10:53 pm

1 stop17h 53m

$383

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Thu 3/19

8:10 pm-9:23 pm

1 stop24h 13m

Idaho Falls Fanning Field

Sun 3/22

9:52 am-11:07 pm

1 stop14h 15m

$385

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Thu 4/2

2:04 pm-10:52 pm

1 stop7h 48m

Idaho Falls Fanning Field

Sun 4/5

4:59 pm-11:59 pm

1 stop8h 00m

$386

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Thu 4/2

5:30 am-1:24 pm

1 stop6h 54m

Idaho Falls Fanning Field

Sun 4/5

2:30 pm-8:58 pm

1 stop7h 28m

$405
Cheapest one-way
Quickest one-way

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Mon 4/13

12:42 pm-3:27 pm

Nonstop1h 45m

$54

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/6

Showing 1-10 of 18 resultsSorted by cheapest first
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 March.
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 March is currently the most expensive (average of $197). 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 March 10, 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 March 10, 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
8,276 reviews

Food

7.2

Boarding

8.1

Crew

8.5

Comfort

7.9

Entertainment

7.8

Overall

7.9

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
8,276 reviews
Delta
7.9
Good
8,276 reviews

Food

7.2

Boarding

8.1

Crew

8.5

Comfort

7.9

Entertainment

7.8

Overall

7.9

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
7.3
Good
714 reviews
Delta
7.9
Good
8,276 reviews

Food

7.2

Boarding

8.1

Crew

8.5

Comfort

7.9

Entertainment

7.8

Overall

7.9

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 $369, Alaska Airlines can have you in Idaho Falls from Las Vegas in 7h. 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 64% 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 $98 for a flight from Las Vegas to Idaho Falls. The cheapest flight overall is $55 while the most popular route, (Las Vegas Harry Reid Intl - Idaho Falls Fanning Field) is currently priced at $89.

  • 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 March is currently the most expensive (average of $197). 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

Browse thousands of different options on Cheapflights for your next trip

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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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$55Average$110FlexibilityNo cancel feeOn-time88%
DeltaCheapest$149Average$289FlexibilityNo cancel feeOn-timeN/A

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