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Idaho Falls

$71+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — IDA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap 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 June 12, 2025.

Round-trip from

$138
(Mytrip)

One-way from

$71
(Booking.com)

Popular in

December

Cheapest in

May

Average price

$168

Good round-trip deal

$101 or less

Good one-way deal

$62 or less
From Las Vegas Harry Reid Intl to Idaho Falls Fanning Field
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One-way flight from Las Vegas Harry Reid Intl to Idaho Falls Fanning Field
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Highest demand for flights based on searches. 9% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Las Vegas Harry Reid Intl to Idaho Falls Fanning Field.
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Price to beat on a one-way flight from Las Vegas Harry Reid Intl to Idaho Falls Fanning Field.
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Find 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 June 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/208:57 amLAS - IDA
Nonstop1h 48mAllegiant Air
Mon 6/236:17 pmIDA - LAS
Nonstop1h 46mAllegiant Air
Deal found 6/11$137
This Mytrip deal was found by Cheapflights users on 6/11. 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.
Fri 7/188:56 amLAS - IDA
Nonstop1h 48mMultiple Airlines
Mon 7/217:23 pmIDA - LAS
1 stop16h 36mMultiple Airlines
Deal found 6/11$138
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/16:20 amLAS - IDA
1 stop3h 14mDelta
Wed 8/136:52 pmIDA - LAS
1 stop5h 54mDelta
Deal found 6/11$270
This Alaska Airlines deal was found by Cheapflights users on 6/12. 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.
Tue 8/266:00 amLAS - IDA
2 stops15h 39mAlaska Airlines
Sat 8/304:03 pmIDA - LAS
1 stop5h 22mAlaska Airlines
Deal found 6/12$279
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/194:43 pmLAS - IDA
1 stop5h 08mUnited Airlines
Sun 7/276:03 pmIDA - LAS
1 stop4h 56mUnited Airlines
Deal found 6/11$325

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 June 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

Fri 7/18

8:56 am-11:44 am

Nonstop1h 48m

Idaho Falls Fanning Field

Mon 7/21

7:23 pm-10:59 am

1 stop16h 36m

$138

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 7/18

8:56 am-11:44 am

Nonstop1h 48m

Idaho Falls Fanning Field

Sun 7/27

9:47 am-11:27 pm

1 stop14h 40m

$224

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 8/1

6:20 am-10:34 am

1 stop3h 14m

Idaho Falls Fanning Field

Wed 8/13

6:52 pm-11:46 pm

1 stop5h 54m

$270

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Tue 8/26

6:00 am-10:39 pm

2 stops15h 39m

Idaho Falls Fanning Field

Sat 8/30

4:03 pm-8:25 pm

1 stop5h 22m

$279

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Sat 7/19

4:43 pm-10:51 pm

1 stop5h 08m

Idaho Falls Fanning Field

Sun 7/27

6:03 pm-9:59 pm

1 stop4h 56m

$325

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Mon 8/4

8:56 am-11:44 am

Nonstop1h 48m

$71

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Mon 8/4

7:00 am-4:14 pm

1 stop8h 14m

$100

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Wed 7/9

8:00 am-3:22 pm

1 stop6h 22m

$120

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Sat 7/26

5:25 pm-10:29 pm

1 stop4h 04m

$121

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Wed 6/18

9:46 am-5:16 pm

1 stop6h 30m

$236

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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, October is the cheapest month in which you can book a flight from Las Vegas to Idaho Falls (average of $380). Flying from Las Vegas to Idaho Falls in December is currently the most expensive (average of $578). 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 June 12, 2025.

It’s optimal to fly from Las Vegas to Idaho Falls at noon. By choosing this option you can save up to 77% on the cost of your flight, compared to a flight in the afternoon.

Rainfall in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho Falls ranges from 0.6 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. July is typically the driest time to visit Idaho Falls when rainfall is around 0.6 in.

Temperature in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho Falls, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 June 12, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and United Airlines from Las Vegas to Idaho Falls to help guide your decision. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Allegiant Air
7.3
Good
725 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    According to our current data, Allegiant Air ($224), Delta ($270), and Alaska Airlines ($279) offers the cheapest pricing from Las Vegas to Idaho Falls.

  • 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 $71. However, be on the lookout for offers from Alaska Airlines and Delta, 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 $58 while the most popular route, (Las Vegas Harry Reid Intl - Idaho Falls Fanning Field) is currently priced at $137.

  • 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, October is the cheapest month in which you can book a flight from Las Vegas to Idaho Falls (average of $380). Flying from Las Vegas to Idaho Falls in December is currently the most expensive (average of $578). 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.

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Top 3 airlines flying from Las Vegas to Idaho Falls

Discover the top 3 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$90Average$127FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$219Average$546FlexibilityNo cancel feeOn-time69%
DeltaCheapest$264Average$538FlexibilityNo cancel feeOn-timeN/A

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