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Cheap flights from Las Vegas to Idaho Falls from $86

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Las Vegas to Idaho Falls departing on 4/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Las Vegas to Idaho Falls

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Las Vegas to Idaho Falls.
Allegiant Air Logo
11:50 am - 2:42 pmLAS-IDA
1h 52mnonstop
Allegiant Air Logo
9:34 pm - 10:17 pmIDA-LAS
1h 43mnonstop
$150Allegiant Air
Find Deal
Fri, Apr 18 - Mon, Apr 21
Delta Logo
5:10 pm - 10:51 pmLAS-IDA
4h 41m1 stop
Delta Logo
6:00 am - 8:35 amIDA-LAS
3h 35m1 stop
$265Delta
Find Deal
Wed, May 28 - Sat, May 31
Delta Logo
5:20 pm - 10:00 pmLAS-IDA
3h 40m1 stop
Delta Logo
3:05 pm - 6:02 pmIDA-LAS
3h 57m1 stop
$291Delta
Find Deal
Tue, Jul 1 - Tue, Jul 8
Delta Logo
6:10 am - 10:33 amLAS-IDA
3h 23m1 stop
Delta Logo
3:05 pm - 6:02 pmIDA-LAS
3h 57m1 stop
$321Delta
Find Deal
Tue, Aug 5 - Thu, Aug 7
Alaska Airlines Logo
4:33 pm - 3:40 pmLAS-IDA
22h 07m2 stops
Alaska Airlines Logo
4:20 pm - 7:10 pmIDA-LAS
27h 50m1 stop
$368Alaska Airlines
Find Deal
Wed, May 28 - Sat, May 31
United Airlines Logo
7:11 am - 3:21 pmLAS-IDA
7h 10m1 stop
United Airlines Logo
4:15 pm - 10:16 pmIDA-LAS
7h 01m1 stop
$401United Airlines
Find Deal
Fri, Apr 18 - Mon, Apr 21
United Airlines Logo
6:10 am - 10:51 pmLAS-IDA
15h 41m2 stops
United Airlines Logo
4:13 pm - 8:47 pmIDA-LAS
5h 34m1 stop
$448United Airlines
Find Deal
Tue, Jul 1 - Tue, Jul 8
American Airlines Logo
4:52 pm - 10:10 pmLAS-IDA
4h 18m1 stop
American Airlines Logo
7:43 am - 6:21 pmIDA-LAS
11h 38m2 stops
$456American Airlines
Find Deal
Fri, Apr 18 - Mon, Apr 21
United Airlines Logo
4:10 pm - 9:32 amLAS-IDA
16h 22m2 stops
United Airlines Logo
4:15 pm - 8:29 pmIDA-LAS
5h 14m1 stop
$483United Airlines
Find Deal
Fri, Apr 18 - Mon, Apr 21
Alaska Airlines Logo
10:17 am - 10:39 pmLAS-IDA
11h 22m2 stops
Alaska Airlines Logo
4:03 pm - 11:59 pmIDA-LAS
8h 56m1 stop
$484Alaska Airlines
Find Deal
Tue, Aug 5 - Thu, Aug 7

Delta flights from Las Vegas to Idaho Falls

Our best Delta deals on Las Vegas to Idaho Falls flight tickets
Delta
May 28
LAS5:10 pmLas Vegas Harry Reid Intl
4h 41m
1 stop
IDA10:51 pmIdaho Falls Fanning Field
May 31
IDA6:00 amIdaho Falls Fanning Field
3h 35m
1 stop
LAS8:35 amLas Vegas Harry Reid Intl
Delta
Jul 1
LAS5:20 pmLas Vegas Harry Reid Intl
3h 40m
1 stop
IDA10:00 pmIdaho Falls Fanning Field
Jul 8
IDA3:05 pmIdaho Falls Fanning Field
3h 57m
1 stop
LAS6:02 pmLas Vegas Harry Reid Intl
Delta
Aug 5
LAS6:10 amLas Vegas Harry Reid Intl
3h 23m
1 stop
IDA10:33 amIdaho Falls Fanning Field
Aug 7
IDA3:05 pmIdaho Falls Fanning Field
3h 57m
1 stop
LAS6:02 pmLas Vegas Harry Reid Intl

Alaska Airlines flights from Las Vegas to Idaho Falls

Our best Alaska Airlines deals on Las Vegas to Idaho Falls flight tickets
Alaska Airlines
May 28
LAS4:33 pmLas Vegas Harry Reid Intl
22h 07m
2 stops
IDA3:40 pmIdaho Falls Fanning Field
May 31
IDA4:20 pmIdaho Falls Fanning Field
27h 50m
1 stop
LAS7:10 pmLas Vegas Harry Reid Intl
Alaska Airlines
Aug 5
LAS10:17 amLas Vegas Harry Reid Intl
11h 22m
2 stops
IDA10:39 pmIdaho Falls Fanning Field
Aug 7
IDA4:03 pmIdaho Falls Fanning Field
8h 56m
1 stop
LAS11:59 pmLas Vegas Harry Reid Intl
Alaska Airlines
Aug 5
LAS7:00 amLas Vegas Harry Reid Intl
14h 39m
2 stops
IDA10:39 pmIdaho Falls Fanning Field
Aug 7
IDA4:03 pmIdaho Falls Fanning Field
7h 56m
2 stops
LAS10:59 pmLas Vegas Harry Reid Intl

See travel insights to Idaho Falls from

How to get the cheapest flight ticket from Las Vegas to Idaho Falls

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $139.

What is the cheapest day to depart on your flight to Idaho Falls?

Our data shows that Friday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $125. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Thursday is $189.

What is the cheapest time of day to depart on your flight to Idaho Falls?

Our most recent data shows that the best time of day to fly to Idaho Falls is in the morning. Flights from Las Vegas to Idaho Falls during this time can be as low as $129. Try not to purchase tickets in the afternoon because they tend to be around $488. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Las Vegas Harry Reid Intl to Idaho Falls Fanning Field flight route?

Fly from Las Vegas Harry Reid Intl to Idaho Falls Fanning Field for the best Las Vegas Harry Reid Intl - Idaho Falls Fanning Field flight prices

What cabin class options are available on Las Vegas Harry Reid Intl to Idaho Falls Fanning Field flights?

There are 1 cabin classes available to choose from on Las Vegas Harry Reid Intl to Idaho Falls Fanning Field flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Las Vegas to Idaho Falls flight prices changed over time?

As of April 2025, prices for Las Vegas to Idaho Falls flights are approximately 148% more expensive when compared to flights at the same time last year.

When to book flights from Las Vegas to Idaho Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Las Vegas to Idaho Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Las Vegas to Idaho Falls (LAS to IDA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Las Vegas to Idaho Falls

Best Price Found

$86

Fastest flight time

1h 52m

Direct flights

Tue and Sat

Airports in Idaho Falls

1 airport
The best one-way flight to Idaho Falls from Las Vegas in the past 72 hours is $86. The best round-trip flight deal from Las Vegas to Idaho Falls found on momondo in the last 72 hours is $150.
The fastest flight from Las Vegas to Idaho Falls takes 1h 52m
Direct flights go from Las Vegas to Idaho Falls on Tuesday and Saturday. The only airline offering direct flights is Allegiant Air.
There is 1 airport near Idaho Falls: Idaho Falls Fanning Field (IDA)

  • How far is Las Vegas Harry Reid Intl to Idaho Falls Fanning Field by plane?

    The distance between Las Vegas Harry Reid Intl and Idaho Falls Fanning Field is about 529.6 mi. By plane, this route typically takes 1h 52m.

  • When did momondo last update prices for flights from Las Vegas Harry Reid Intl Airport to Idaho Falls Fanning Field Airport?

    Prices for flights from Las Vegas Harry Reid Intl Airport to Idaho Falls Fanning Field Airport are updated daily.

  • How many operators does momondo search for flights from Las Vegas Harry Reid Intl Airport to Idaho Falls Fanning Field Airport?

  • How old do you have to be to fly from Las Vegas Harry Reid Intl Airport to Idaho Falls Fanning Field Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Las Vegas Harry Reid Intl Airport to Idaho Falls Fanning Field Airport.

  • What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

    The required travel and health documents for your Idaho Falls Fanning Field Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Idaho Falls Fanning Field Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Las Vegas to Idaho Falls?

  • What is the most popular airline from Las Vegas to Idaho Falls?


Best airlines flying from Las Vegas to Idaho Falls

Compare and see reviews for airlines that fly from Las Vegas to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $90Free CancellationRating
7.3
732 reviews
Search Allegiant Air flights
DeltaPriceFrom $330Free CancellationRating
8.0
7,897 reviews
Search Delta flights
United AirlinesPriceFrom $357Free CancellationRating
7.4
8,616 reviews
Search United Airlines flights

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

Why use momondo?

Why should I use momondo to find a flight deal from Las Vegas to Idaho Falls?

Finding the right flight to Idaho Falls from Las Vegas is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Idaho Falls quick and easy, saving you time and money.

Can I find flights from Las Vegas to Idaho Falls with flexible booking policies on momondo?

momondo does allow users to show only those flights to Idaho Falls from Las Vegas which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Las Vegas to Idaho Falls?

momondo helps you find the best flight between Las Vegas and Idaho Falls by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Las Vegas to Idaho Falls right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Las Vegas to Idaho Falls flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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