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$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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — IDA
Mar 8 — Mar 151
Sat 3/8
Sat 3/15
1 adult, Economy
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1. Tell us where you want to go
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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 March 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$100
(Cheapflightsfares)

One-way from

$66
(Cheapflightsfares)

Popular in

June

Cheapest in

October

Average price

$179

Good round-trip deal

$105 or less

Good one-way deal

$117 or less
Provider with most accurate pricing for Las Vegas Harry Reid Intl-Idaho Falls Fanning Field flight deals.
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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
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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. 17% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 3, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 3/2. 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 4/411:45 amLAS - IDA
Nonstop1h 52mAllegiant Air
Mon 4/79:29 pmIDA - LAS
Nonstop1h 43mAllegiant Air
Deal found 3/2$100
This Delta deal was found by Cheapflights users on 3/2. 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.
Sat 5/175:15 pmLAS - IDA
1 stop4h 40mDelta
Fri 6/207:00 pmIDA - LAS
1 stop4h 53mDelta
Deal found 3/2$284
This United Airlines deal was found by Cheapflights users on 3/2. 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.
Fri 4/46:01 amLAS - IDA
1 stop6h 29mUnited Airlines
Mon 4/144:15 pmIDA - LAS
1 stop7h 01mUnited Airlines
Deal found 3/2$310
This Alaska Airlines deal was found by Cheapflights users on 3/2. 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.
Fri 4/47:40 amLAS - IDA
1 stop13h 55mAlaska Airlines
Mon 4/74:11 pmIDA - LAS
1 stop6h 29mAlaska Airlines
Deal found 3/2$319
This American Airlines deal was found by Cheapflights users on 3/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/117:00 amLAS - IDA
2 stops14h 10mAmerican Airlines
Sun 4/137:43 amIDA - LAS
2 stops11h 38mAmerican Airlines
Deal found 3/2$474

Find flights from Las Vegas to Idaho Falls within your budget

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 3, 2025.

Fly from

Las Vegas

Fly to

Idaho Falls

Route

Depart

Return

Price

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 4/4

11:45 am-2:37 pm

Nonstop1h 52m

Idaho Falls Fanning Field

Mon 4/7

9:29 pm-10:12 pm

Nonstop1h 43m

$100

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Sat 5/17

5:15 pm-10:55 pm

1 stop4h 40m

Idaho Falls Fanning Field

Fri 6/20

7:00 pm-10:53 pm

1 stop4h 53m

$284

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 4/4

6:01 am-1:30 pm

1 stop6h 29m

Idaho Falls Fanning Field

Mon 4/14

4:15 pm-10:16 pm

1 stop7h 01m

$310

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 4/4

7:40 am-10:35 pm

1 stop13h 55m

Idaho Falls Fanning Field

Mon 4/7

4:11 pm-9:40 pm

1 stop6h 29m

$319

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Fri 4/11

7:00 am-10:10 pm

2 stops14h 10m

Idaho Falls Fanning Field

Sun 4/13

7:43 am-6:21 pm

2 stops11h 38m

$474

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Mon 5/12

11:50 am-2:42 pm

Nonstop1h 52m

$66

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Wed 3/26

2:13 pm-10:35 pm

1 stop7h 22m

$138

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Mon 5/12

5:15 pm-10:51 pm

1 stop4h 36m

$220

Las VegasIdaho Falls

LAS - IDA

LASIDA

Las Vegas Harry Reid Intl

Tue 3/11

10:39 am-9:06 pm

2 stops9h 27m

$285

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

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
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 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.

Travel insights for flights from Las Vegas to Idaho Falls

Get recent, data-driven insights about flights from Las Vegas to Idaho Falls including ideal travel times, pricing trends, and more.

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 July is currently the most expensive (average of $628). 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 3, 2025.

It’s optimal to fly from Las Vegas to Idaho Falls in the morning. By choosing this option you can save up to 74% 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 March 3, 2025.
Alaska Airlines
8.0
Very good
9,710 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,710 reviews
Alaska Airlines
8.0
Very good
9,710 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
8,068 reviews
Alaska Airlines
8.0
Very good
9,710 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines
7.4
Good
8,679 reviews
Alaska Airlines
8.0
Very good
9,710 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Allegiant Air
7.3
Good
752 reviews
Alaska Airlines
8.0
Very good
9,710 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,710 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 ($100), Delta ($284), and United Airlines ($310) 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 $66. 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 $138 for a flight from Las Vegas to Idaho Falls. The cheapest flight overall is $56 while the most popular route, (Las Vegas Harry Reid Intl - Idaho Falls Fanning Field) is currently priced at $100.

  • 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 July is currently the most expensive (average of $628). 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 March 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$90Average$131FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$357Average$558FlexibilityNo cancel feeOn-time69%
DeltaCheapest$364Average$620FlexibilityNo cancel feeOn-timeN/A
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