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Idaho Falls

$88+ Cheap flights from Las Vegas to Idaho Falls (LAS - IDA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/25. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — IDA
Jun 26 — Jul 31
Thu 6/26
Thu 7/3
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 21, 2025.

Round-trip from

$88
(Booking.com)

Popular in

December

Cheapest in

May

Average price

$150

Good round-trip deal

$125 or less
From Las Vegas Harry Reid Intl to Idaho Falls Fanning Field
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Highest demand for flights based on searches. 10% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($9 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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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 21, 2025.

This Booking.com deal was found by Cheapflights users on 6/20. 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 7/258:56 amLAS - IDA
Nonstop1h 48mAllegiant Air
Mon 7/286:12 pmIDA - LAS
Nonstop1h 42mAllegiant Air
Deal found 6/20$88
This Mytrip deal was found by Cheapflights users on 6/19. 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 8/18:56 amLAS - IDA
Nonstop1h 48mMultiple Airlines
Mon 8/47:23 pmIDA - LAS
1 stop13h 12mMultiple Airlines
Deal found 6/19$144
This Delta deal was found by Cheapflights users on 6/19. 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.
Tue 7/295:20 pmLAS - IDA
1 stop4h 09mDelta
Wed 8/63:04 pmIDA - LAS
1 stop4h 02mDelta
Deal found 6/19$241
This United Airlines deal was found by Cheapflights users on 6/19. 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 12/135:20 amLAS - IDA
1 stop7h 13mUnited Airlines
Mon 3/305:57 pmIDA - LAS
1 stop5h 02mUnited Airlines
Deal found 6/19$270
This Alaska Airlines deal was found by Cheapflights users on 6/19. 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 7/298:30 amLAS - IDA
2 stops13h 09mAlaska Airlines
Tue 8/54:03 pmIDA - LAS
1 stop6h 23mAlaska Airlines
Deal found 6/19$279
This Hawaiian Airlines deal was found by Cheapflights users on 6/19. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/127:50 amLAS - IDA
1 stop6h 30mHawaiian Airlines
Sun 9/146:13 amIDA - LAS
1 stop5h 38mHawaiian Airlines
Deal found 6/19$372

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 21, 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 7/25

8:56 am-11:44 am

Nonstop1h 48m

Idaho Falls Fanning Field

Mon 7/28

6:12 pm-6:54 pm

Nonstop1h 42m

$88

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 8/1

8:56 am-11:44 am

Nonstop1h 48m

Idaho Falls Fanning Field

Mon 8/4

7:23 pm-7:35 am

1 stop13h 12m

$144

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Tue 7/29

6:20 am-10:34 am

1 stop3h 14m

Idaho Falls Fanning Field

Tue 8/5

6:00 am-8:49 am

1 stop3h 49m

$241

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Sat 12/13

5:20 am-1:33 pm

1 stop7h 13m

Idaho Falls Fanning Field

Mon 3/30

5:57 pm-9:59 pm

1 stop5h 02m

$270

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Tue 7/29

8:30 am-10:39 pm

2 stops13h 09m

Idaho Falls Fanning Field

Tue 8/5

4:03 pm-9:26 pm

1 stop6h 23m

$279

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 9/12

7:50 am-3:20 pm

1 stop6h 30m

Idaho Falls Fanning Field

Sun 9/14

6:13 am-10:51 am

1 stop5h 38m

$372

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Mon 6/30

8:57 am-11:45 am

Nonstop1h 48m

$105

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Sun 8/17

10:25 pm-6:41 pm

2 stops19h 16m

$111

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Tue 10/7

2:00 pm-10:38 pm

1 stop7h 38m

$120

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Tue 10/7

6:00 am-10:38 pm

2 stops15h 38m

$154

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/20

Showing 1-10 of 13 results
1
2

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 21, 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 21, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and Hawaiian 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

Crew

8.5

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

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

Crew

8.5

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

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
7,968 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,514 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

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
8,821 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

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
718 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

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 ($88), Delta ($241), and United Airlines ($270) offers the cheapest pricing from Las Vegas to Idaho Falls. Users have found that Allegiant Air is 49% 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 $105. However, be on the lookout for offers from Hawaiian Airlines and Alaska 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 $136 for a flight from Las Vegas to Idaho Falls. The cheapest flight overall is $88 while the most popular route, (Las Vegas Harry Reid Intl - Idaho Falls Fanning Field) is currently priced at $88.

  • 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.

See more FAQs

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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 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$90Average$128FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$219Average$546FlexibilityNo cancel feeOn-time69%
DeltaCheapest$264Average$538FlexibilityNo cancel feeOn-timeN/A

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