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Idaho Falls

$66+ 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 7/31. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — IDA
Aug 27 — Sep 31
Thu 8/27
Thu 9/3
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 July 28, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 7/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:45 am
LAS
-
IDA
Nonstop1h 49m
Allegiant Air
Mon 9/216:21 pm
IDA
-
LAS
Nonstop1h 45m
Allegiant Air
Deal found 7/26$89
This Cheapflightsfares deal was found by Cheapflights users on 7/27. 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 10/3010:46 am
LAS
-
IDA
Nonstop1h 48m
Allegiant Air
Mon 11/27:30 pm
IDA
-
LAS
Nonstop1h 44m
Allegiant Air
Deal found 7/27$93
This Cheapflightsfares deal was found by Cheapflights users on 7/24. 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.
Fri 9/259:09 am
LAS
-
IDA
Nonstop1h 49m
Allegiant Air
Mon 9/286:21 pm
IDA
-
LAS
Nonstop1h 45m
Allegiant Air
Deal found 7/24$105
This Cheapflightsfares deal was found by Cheapflights users on 7/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:05 am
LAS
-
IDA
Nonstop1h 49m
Allegiant Air
Mon 9/78:36 pm
IDA
-
LAS
Nonstop1h 45m
Allegiant Air
Deal found 7/26$109
This Cheapflightsfares deal was found by Cheapflights users on 7/24. 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.
Mon 7/271:12 pm
LAS
-
IDA
Nonstop1h 48m
Allegiant Air
Mon 8/310:47 pm
IDA
-
LAS
Nonstop1h 43m
Allegiant Air
Deal found 7/24$150
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Fri 9/189:15 am
LAS
-
IDA
Nonstop1h 49m
Multiple Airlines
Mon 9/2112:24 pm
IDA
-
LAS
1 stop6h 22m
Multiple Airlines
Deal found 7/26$185
This Gotogate deal was found by Cheapflights users on 7/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:45 am
LAS
-
IDA
Nonstop1h 49m
Multiple Airlines
Mon 9/213:57 pm
IDA
-
LAS
1 stop5h 25m
Multiple Airlines
Deal found 7/26$205
This Booking.com deal was found by Cheapflights users on 7/24. 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 9/259:09 am
LAS
-
IDA
Nonstop1h 49m
Multiple Airlines
Mon 9/283:57 pm
IDA
-
LAS
1 stop5h 25m
Multiple Airlines
Deal found 7/24$213
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/71:17 pm
LAS
-
IDA
Nonstop1h 48m
Multiple Airlines
Tue 8/114:14 pm
IDA
-
LAS
1 stop4h 58m
Multiple Airlines
Deal found 7/23$229
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/711:16 am
LAS
-
IDA
1 stop9h 48m
Multiple Airlines
Mon 8/1010:54 pm
IDA
-
LAS
Nonstop1h 43m
Multiple Airlines
Deal found 7/23$233
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 10/309:25 am
LAS
-
IDA
2 stops9h 13m
Multiple Airlines
Mon 11/27:30 pm
IDA
-
LAS
Nonstop1h 44m
Multiple Airlines
Deal found 7/27$238

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 July 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$89
(Cheapflightsfares)

One-way from

$66
(Super.com)

Popular in

December

Cheapest in

November

Average price

$202

Good round-trip deal

$78 or less

Good one-way deal

$61 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
High demand for flights, 2% potential price rise
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 July 2026
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 July 28, 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
Quickest round-trip

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 8/7

1:17 pm-4:05 pm

Nonstop1h 48m

Idaho Falls Fanning Field

Tue 8/11

4:14 pm-8:12 pm

1 stop4h 58m

$229

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 8/7

11:16 am-10:04 pm

1 stop9h 48m

Idaho Falls Fanning Field

Mon 8/10

10:54 pm-11:37 pm

Nonstop1h 43m

$233

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 9/18

9:15 am-12:04 pm

Nonstop1h 49m

Idaho Falls Fanning Field

Mon 9/21

12:24 pm-11:59 pm

2 stops12h 35m

$278

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Thu 8/13

10:05 am-2:35 pm

1 stop3h 30m

Idaho Falls Fanning Field

Sun 8/16

6:00 am-8:53 am

1 stop3h 53m

$311

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Mon 9/21

5:10 pm-10:22 pm

1 stop4h 12m

Idaho Falls Fanning Field

Wed 9/23

6:57 pm-11:35 pm

1 stop5h 38m

$321

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 8/7

6:27 pm-1:06 pm

1 stop17h 39m

Idaho Falls Fanning Field

Tue 8/11

4:14 pm-8:12 pm

1 stop4h 58m

$349

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Sun 8/9

7:00 am-1:06 pm

1 stop5h 06m

Idaho Falls Fanning Field

Thu 8/13

4:14 pm-8:12 pm

1 stop4h 58m

$384

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Wed 8/19

5:20 am-1:29 pm

1 stop7h 09m

Idaho Falls Fanning Field

Sun 8/23

4:04 pm-9:59 pm

1 stop6h 55m

$387

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 9/4

5:20 am-1:29 pm

1 stop7h 09m

Idaho Falls Fanning Field

Mon 9/7

2:25 pm-8:51 pm

1 stop7h 26m

$394

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 8/14

5:20 am-1:29 pm

1 stop7h 09m

Idaho Falls Fanning Field

Mon 8/17

4:04 pm-8:51 pm

1 stop5h 47m

$414

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

Showing 1-10 of 17 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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*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, November is the cheapest month in which you can book a flight from Las Vegas to Idaho Falls (average of $104). Flying from Las Vegas to Idaho Falls in December is currently the most expensive (average of $289). 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 July 28, 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.

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

Airfare is below average for this route at the moment.

Las Vegas to Idaho Falls flights typically cost between $105 and $117 in September.
The cheapest round-trip price found within the last 5 days was $89 on Allegiant Air (Sep 21-Sep 21).

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 July 28, 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
7.8
Good
8,483 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.8

Overall

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,483 reviews
Delta
7.8
Good
8,483 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.8

Overall

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Allegiant Air
7.3
Good
681 reviews
Delta
7.8
Good
8,483 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.8

Overall

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 popular is this Las Vegas to Idaho Falls flight route?

    The Las Vegas Harry Reid Intl to Idaho Falls Fanning Field flight path was viewed by 2 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    According to our current data, Allegiant Air ($85), and Delta ($149) offers the cheapest pricing from Las Vegas to Idaho Falls. Users have found that Allegiant Air is 51% 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 $55. 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 $103 for a flight from Las Vegas to Idaho Falls. The cheapest flight overall is $44 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, November is the cheapest month in which you can book a flight from Las Vegas to Idaho Falls (average of $104). Flying from Las Vegas to Idaho Falls in December is currently the most expensive (average of $289). 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 July 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$85Average$117FlexibilityNo cancel feeOn-time88%
DeltaCheapest$149Average$289FlexibilityNo cancel feeOn-timeN/A

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