Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Idaho Falls to Las Vegas from $62

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho Falls to Las Vegas departing on 10/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho Falls to Las Vegas

Cheap round-trip flights

Enter your travel dates to find the best prices.
Allegiant Air Logo
9:33 pm - 10:17 pm
IDA
-
LAS
1h 44mnonstop
Allegiant Air Logo
10:46 am - 1:34 pm
LAS
-
IDA
1h 48mnonstop
$74Allegiant Air
Mon, Oct 19 - Fri, Oct 30
Allegiant Air Logo
8:33 pm - 9:16 pm
IDA
-
LAS
1h 43mnonstop
Allegiant Air Logo
9:15 am - 12:04 pm
LAS
-
IDA
1h 49mnonstop
$89Allegiant Air
Mon, Aug 31 - Fri, Sep 18
Multiple Airlines Logo
5:51 pm - 9:40 am
IDA
-
LAS
16h 49m
1 stop
Multiple Airlines Logo
8:45 am - 11:34 am
LAS
-
IDA
1h 49mnonstop
$164Multiple Airlines
Fri, Sep 18 - Mon, Sep 21
Multiple Airlines Logo
6:21 pm - 7:06 pm
IDA
-
LAS
1h 45mnonstop
Multiple Airlines Logo
9:30 pm - 5:01 pm
LAS
-
IDA
18h 31m
1 stop
$168Multiple Airlines
Mon, Sep 14 - Thu, Sep 17
Delta Logo
7:00 pm - 10:36 pm
IDA
-
LAS
4h 36m
1 stop
Delta Logo
6:00 am - 10:50 am
LAS
-
IDA
3h 50m
1 stop
$301Delta
Wed, Aug 19 - Sun, Aug 23
Delta Logo
6:00 am - 8:45 am
IDA
-
LAS
3h 45m
1 stop
Delta Logo
5:10 pm - 10:22 pm
LAS
-
IDA
4h 12m
1 stop
$301Delta
Tue, Sep 15 - Wed, Sep 16
United Airlines Logo
5:53 pm - 9:59 pm
IDA
-
LAS
5h 06m
1 stop
United Airlines Logo
5:20 am - 1:29 pm
LAS
-
IDA
7h 09m
1 stop
$301United Airlines
Fri, Aug 21 - Tue, Aug 25
United Airlines Logo
4:04 pm - 8:51 pm
IDA
-
LAS
5h 47m
1 stop
United Airlines Logo
5:20 am - 1:29 pm
LAS
-
IDA
7h 09m
1 stop
$301United Airlines
Thu, Aug 20 - Tue, Aug 25
Alaska Airlines Logo
1:58 pm - 9:00 pm
IDA
-
LAS
8h 02m
1 stop
Alaska Airlines Logo
3:56 pm - 10:59 pm
LAS
-
IDA
6h 03m
1 stop
$301Alaska Airlines
Tue, Oct 27 - Wed, Oct 28
Alaska Airlines Logo
3:57 pm - 8:03 pm
IDA
-
LAS
5h 06m
1 stop
Alaska Airlines Logo
2:07 pm - 10:59 pm
LAS
-
IDA
7h 52m
1 stop
$301Alaska Airlines
Mon, Oct 26 - Wed, Oct 28

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Allegiant Air flights from Idaho Falls to Las Vegas

Our best Allegiant Air deals on Idaho Falls to Las Vegas flight tickets
Allegiant Air
Oct 19
IDA9:33 pmIdaho Falls Fanning Field
1h 44m
LAS10:17 pmLas Vegas Harry Reid Intl
Oct 30
LAS10:46 amLas Vegas Harry Reid Intl
1h 48m
IDA1:34 pmIdaho Falls Fanning Field
$74
Allegiant Air
Aug 31
IDA8:33 pmIdaho Falls Fanning Field
1h 43m
LAS9:16 pmLas Vegas Harry Reid Intl
Sep 21
LAS8:45 amLas Vegas Harry Reid Intl
1h 49m
IDA11:34 amIdaho Falls Fanning Field
$89
Allegiant Air
Sep 14
IDA6:21 pmIdaho Falls Fanning Field
1h 45m
LAS7:06 pmLas Vegas Harry Reid Intl
Sep 18
LAS9:15 amLas Vegas Harry Reid Intl
1h 49m
IDA12:04 pmIdaho Falls Fanning Field
$93

Delta flights from Idaho Falls to Las Vegas

Our best Delta deals on Idaho Falls to Las Vegas flight tickets
Delta
Aug 16
IDA3:17 pmIdaho Falls Fanning Field
3h 57m
1 stop
LAS6:14 pmLas Vegas Harry Reid Intl
Aug 19
LAS12:53 pmLas Vegas Harry Reid Intl
8h 39m
2 stops
IDA10:32 pmIdaho Falls Fanning Field
$386
Delta
Aug 15
IDA6:00 amIdaho Falls Fanning Field
3h 53m
1 stop
LAS8:53 amLas Vegas Harry Reid Intl
Aug 19
LAS12:53 pmLas Vegas Harry Reid Intl
8h 39m
2 stops
IDA10:32 pmIdaho Falls Fanning Field
$393
Delta
Aug 15
IDA6:00 amIdaho Falls Fanning Field
7h 22m
2 stops
LAS12:22 pmLas Vegas Harry Reid Intl
Aug 19
LAS12:53 pmLas Vegas Harry Reid Intl
8h 39m
2 stops
IDA10:32 pmIdaho Falls Fanning Field
$398

momondo Fare Finder

 
Customize your flight search to find flights from Idaho Falls to Las Vegas 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, momondo users made 832,500 searches. Data last updated August 2, 2026.
Use the filters below to find and compare flights from Idaho Falls to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Idaho FallsLas Vegas

IDA - LAS

IDALAS

Idaho Falls Fanning Field

Mon 10/19

9:33 pm-10:17 pm

Nonstop1h 44m

Las Vegas Harry Reid Intl

Fri 10/30

10:46 am-1:34 pm

Nonstop1h 48m

$74

Idaho FallsLas Vegas

IDA - LAS

IDALAS

Idaho Falls Fanning Field

Mon 8/31

8:33 pm-9:16 pm

Nonstop1h 43m

Las Vegas Harry Reid Intl

Fri 9/18

9:15 am-12:04 pm

Nonstop1h 49m

$89

Idaho FallsLas Vegas

IDA - LAS

IDALAS

Idaho Falls Fanning Field

Fri 9/18

5:51 pm-9:40 am

1 stop16h 49m

Las Vegas Harry Reid Intl

Mon 9/21

8:45 am-11:34 am

Nonstop1h 49m

$164

Idaho FallsLas Vegas

IDA - LAS

IDALAS

Idaho Falls Fanning Field

Mon 9/14

6:21 pm-7:06 pm

Nonstop1h 45m

Las Vegas Harry Reid Intl

Thu 9/17

9:30 pm-5:01 pm

1 stop18h 31m

$168

Idaho FallsLas Vegas

IDA - LAS

IDALAS

Idaho Falls Fanning Field

Wed 8/19

7:00 pm-10:36 pm

1 stop4h 36m

Las Vegas Harry Reid Intl

Sun 8/23

6:00 am-10:50 am

1 stop3h 50m

$301

Idaho FallsLas Vegas

IDA - LAS

IDALAS

Idaho Falls Fanning Field

Tue 9/15

6:00 am-8:45 am

1 stop3h 45m

Las Vegas Harry Reid Intl

Wed 9/16

5:10 pm-10:22 pm

1 stop4h 12m

$301

Idaho FallsLas Vegas

IDA - LAS

IDALAS

Idaho Falls Fanning Field

Fri 8/21

5:53 pm-9:59 pm

1 stop5h 06m

Las Vegas Harry Reid Intl

Tue 8/25

5:20 am-1:29 pm

1 stop7h 09m

$301

Idaho FallsLas Vegas

IDA - LAS

IDALAS

Idaho Falls Fanning Field

Thu 8/20

4:04 pm-8:51 pm

1 stop5h 47m

Las Vegas Harry Reid Intl

Tue 8/25

5:20 am-1:29 pm

1 stop7h 09m

$301

Idaho FallsLas Vegas

IDA - LAS

IDALAS

Idaho Falls Fanning Field

Tue 10/27

1:58 pm-9:00 pm

1 stop8h 02m

Las Vegas Harry Reid Intl

Wed 10/28

3:56 pm-10:59 pm

1 stop6h 03m

$301

Idaho FallsLas Vegas

IDA - LAS

IDALAS

Idaho Falls Fanning Field

Mon 10/26

3:57 pm-8:03 pm

1 stop5h 06m

Las Vegas Harry Reid Intl

Wed 10/28

2:07 pm-10:59 pm

1 stop7h 52m

$301

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Las Vegas from

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

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 typical price of a round-trip flight between Idaho Falls and Las Vegas?

Prices are currently low for flights on this route.

Typical prices usually range from $102 to $148.
The lowest price recently found on this route was $74.

What is the cheapest month to fly to Las Vegas?

The month of August is, on average, the cheapest month to fly to Las Vegas from Idaho Falls, with most prices found around $111. The month of July is another great option to travel to Las Vegas, with average flight prices from Idaho Falls averaging around $134.

What is the cheapest day to depart on your flight to Las Vegas?

Our data shows that Monday is the least expensive day to fly to Las Vegas. Tickets to fly out on this day can be as low as $110. Flights from Idaho Falls to Las Vegas on a Thursday will generally be more expensive and average around $309. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Las Vegas?

The cheapest time of day to fly to Las Vegas is in the evening when flights can be purchased for as low as $152. Flights to Las Vegas are more costly in the morning, with an average ticket price of $173. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

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

How far in advance should I book a flight from Idaho Falls to Las Vegas?

You are more likely to see cheaper flights to Las Vegas from Idaho Falls when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $180 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from Idaho Falls for as low as $134 on momondo.

What cabin class options are available on Idaho Falls to Las Vegas flights?

There is only 1 cabin class available to choose from on Idaho Falls to Las Vegas flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of August 2026, prices for Idaho Falls to Las Vegas flights are approximately 8% more expensive when compared to flights at the same time last year.

When to book flights from Idaho Falls to Las Vegas

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

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

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

Best Price Found

$59

Fastest flight time

1h 42m

Direct flights

Tue, Sat and Sun

Airports in Las Vegas

1 airport
The best one-way flight to Las Vegas from Idaho Falls in the past 72 hours is $59. The best round-trip flight deal from Idaho Falls to Las Vegas found on momondo in the last 72 hours is $106.
The fastest flight from Idaho Falls to Las Vegas takes 1h 42m
Direct flights go from Idaho Falls to Las Vegas on Tuesday, Saturday and Sunday. The only airline offering direct flights is Allegiant Air.
There is 1 airport in Las Vegas. From Idaho Falls there are direct flights to Las Vegas Harry Reid Intl (LAS).
Search flight deals

Frequently asked questions about flying from Idaho Falls to Las Vegas

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

    A flight from Idaho Falls Fanning Field to Las Vegas Harry Reid Intl will travel around 529.6 mi. By plane, this route typically takes 1h 42m.

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Idaho Falls Fanning Field Airport to Las Vegas Harry Reid Intl Airport.

  • What documentation or ID do you need to fly to Las Vegas Harry Reid Intl Airport?

    The necessary travel and health documents for your Las Vegas Harry Reid Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

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

Best airlines flying from Idaho Falls to Las Vegas

Compare and see reviews for airlines that fly from Idaho Falls to Las Vegas with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $88Free CancellationRating
7.3
678 reviews
Search Allegiant Air flights
Alaska AirlinesPriceFrom $120Free CancellationRating
7.9
12,748 reviews
Search Alaska Airlines flights
DeltaPriceFrom $132Free CancellationRating
7.8
8,493 reviews
Search Delta flights
United AirlinesPriceFrom $194Free CancellationRating
7.4
10,061 reviews
Search United Airlines flights
American AirlinesPriceFrom $279Free CancellationRating
7.1
11,847 reviews
Search American Airlines flights

  • Allegiant Air Flights From Idaho Falls to Las Vegas

    Across 2 Allegiant Air flights from Idaho Falls to Las Vegas this week, the average price was $153, with the best Allegiant Air deals starting from $88 round-trip. 678 users have rated Allegiant Air on momondo, with an average score of 7.3/10.

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Laughlin
Mount Charleston
Paradise
Henderson
North Las Vegas
Kingman
Mesquite
Sunrise Manor
Pahrump
Furnace Creek
Boulder City
Primm
Winchester
Needles

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Idaho Falls to Las Vegas. momondo saves you time and could save you money on your trip.

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

All flight searches from Idaho Falls to Las Vegas on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Idaho Falls to Las Vegas.

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

Yes momondo offers price alerts on flights to Las Vegas from Idaho Falls. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Las Vegas trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 9/1
Tue 9/8
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States