Cheap flights from Idaho to Las Vegas from $47

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 to Las Vegas departing on 5/31. 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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Find the cheapest flights from Idaho to Las Vegas

Cheap round-trip flights

Enter your travel dates to find the best prices.
Allegiant Air Logo
10:47 pm - 11:30 pm
IDA
-
LAS
1h 43mnonstop
Allegiant Air Logo
1:12 pm - 4:00 pm
LAS
-
IDA
1h 48mnonstop
$70Allegiant Air
Mon, Jul 27 - Fri, Jul 31
Allegiant Air Logo
10:47 pm - 11:30 pm
IDA
-
LAS
1h 43mnonstop
Allegiant Air Logo
1:12 pm - 4:00 pm
LAS
-
IDA
1h 48mnonstop
$78Allegiant Air
Mon, Jul 20 - Fri, Jul 24
Breeze Airways Logo
1:45 pm - 2:20 pm
TWF
-
LAS
1h 35mnonstop
Breeze Airways Logo
9:25 am - 12:00 pm
LAS
-
TWF
1h 35mnonstop
$87Breeze Airways
Mon, Sep 21 - Fri, Oct 2
Breeze Airways Logo
1:45 pm - 2:20 pm
TWF
-
LAS
1h 35mnonstop
Breeze Airways Logo
9:25 am - 12:00 pm
LAS
-
TWF
1h 35mnonstop
$88Breeze Airways
Mon, Sep 14 - Fri, Oct 2
Allegiant Air Logo
10:54 pm - 11:37 pm
IDA
-
LAS
1h 43mnonstop
Allegiant Air Logo
1:17 pm - 4:05 pm
LAS
-
IDA
1h 48mnonstop
$90Allegiant Air
Mon, Aug 10 - Fri, Aug 14
Southwest Logo
5:15 pm - 6:00 pm
BOI
-
LAS
1h 45mnonstop
Southwest Logo
10:30 pm - 1:10 am
LAS
-
BOI
1h 40mnonstop
$197Southwest
Wed, Jun 3 - Fri, Jun 5
Multiple Airlines Logo
1:25 pm - 11:29 pm
BOI
-
LAS
11h 04m
1 stop
Multiple Airlines Logo
2:32 pm - 5:32 pm
LAS
-
BOI
2h 00mnonstop
$199Multiple Airlines
Tue, Jun 2 - Tue, Jun 9
Frontier Logo
1:25 pm - 8:03 pm
BOI
-
LAS
7h 38m
1 stop
Frontier Logo
6:30 am - 12:38 pm
LAS
-
BOI
5h 08m
1 stop
$204Frontier
Tue, Jun 2 - Thu, Jun 4
Southwest Logo
5:40 pm - 6:25 pm
BOI
-
LAS
1h 45mnonstop
Southwest Logo
8:40 am - 11:30 am
LAS
-
BOI
1h 50mnonstop
$207Southwest
Mon, Jun 1 - Thu, Jun 4
Frontier Logo
1:25 pm - 8:27 pm
BOI
-
LAS
8h 02m
1 stop
Frontier Logo
6:15 am - 12:29 pm
LAS
-
BOI
5h 14m
1 stop
$210Frontier
Tue, Jul 28 - Thu, Jul 30

Allegiant Air flights from Idaho to Las Vegas

Our best Allegiant Air deals on Idaho to Las Vegas flight tickets
Allegiant Air
Jul 27
IDA10:47 pmIdaho Falls Fanning Field
1h 43m
LAS11:30 pmLas Vegas Harry Reid Intl
Jul 31
LAS1:12 pmLas Vegas Harry Reid Intl
1h 48m
IDA4:00 pmIdaho Falls Fanning Field
$70
Allegiant Air
Jul 20
IDA10:47 pmIdaho Falls Fanning Field
1h 43m
LAS11:30 pmLas Vegas Harry Reid Intl
Jul 24
LAS1:12 pmLas Vegas Harry Reid Intl
1h 48m
IDA4:00 pmIdaho Falls Fanning Field
$78
Allegiant Air
Aug 10
IDA10:54 pmIdaho Falls Fanning Field
1h 43m
LAS11:37 pmLas Vegas Harry Reid Intl
Aug 14
LAS1:17 pmLas Vegas Harry Reid Intl
1h 48m
IDA4:05 pmIdaho Falls Fanning Field
$90

Delta flights from Idaho to Las Vegas

Our best Delta deals on Idaho to Las Vegas flight tickets
Delta
Aug 17
BOI8:42 amBoise Air Term. Gowen Fld
6h 33m
1 stop
LAS2:15 pmLas Vegas Harry Reid Intl
Aug 20
LAS3:20 pmLas Vegas Harry Reid Intl
6h 10m
1 stop
BOI10:30 pmBoise Air Term. Gowen Fld
$241
Delta
Sep 10
BOI6:00 amBoise Air Term. Gowen Fld
4h 56m
1 stop
LAS9:56 amLas Vegas Harry Reid Intl
Sep 14
LAS3:55 pmLas Vegas Harry Reid Intl
7h 04m
1 stop
BOI11:59 pmBoise Air Term. Gowen Fld
$251
Delta
Jun 5
BOI6:41 pmBoise Air Term. Gowen Fld
6h 03m
1 stop
LAS11:44 pmLas Vegas Harry Reid Intl
Jun 8
LAS7:52 pmLas Vegas Harry Reid Intl
3h 17m
1 stop
BOI12:09 amBoise Air Term. Gowen Fld
$258

momondo Fare Finder

 
Customize your flight search to find flights from Idaho 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 May 10, 2026.
Use the filters below to find and compare flights from Idaho to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Idaho FallsLas Vegas

IDA - LAS

IDALAS

Idaho Falls Fanning Field

Mon 7/27

10:47 pm-11:30 pm

Nonstop1h 43m

Las Vegas Harry Reid Intl

Fri 7/31

1:12 pm-4:00 pm

Nonstop1h 48m

$70

Idaho FallsLas Vegas

IDA - LAS

IDALAS

Idaho Falls Fanning Field

Mon 7/20

10:47 pm-11:30 pm

Nonstop1h 43m

Las Vegas Harry Reid Intl

Fri 7/24

1:12 pm-4:00 pm

Nonstop1h 48m

$78
Quickest round-trip

Twin FallsLas Vegas

TWF - LAS

TWFLAS

Twin Falls Joslin

Mon 9/21

1:45 pm-2:20 pm

Nonstop1h 35m

Las Vegas Harry Reid Intl

Fri 10/2

9:25 am-12:00 pm

Nonstop1h 35m

$87

Twin FallsLas Vegas

TWF - LAS

TWFLAS

Twin Falls Joslin

Mon 9/14

1:45 pm-2:20 pm

Nonstop1h 35m

Las Vegas Harry Reid Intl

Fri 10/2

9:25 am-12:00 pm

Nonstop1h 35m

$88

Idaho FallsLas Vegas

IDA - LAS

IDALAS

Idaho Falls Fanning Field

Mon 8/10

10:54 pm-11:37 pm

Nonstop1h 43m

Las Vegas Harry Reid Intl

Fri 8/14

1:17 pm-4:05 pm

Nonstop1h 48m

$90

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Wed 6/3

5:15 pm-6:00 pm

Nonstop1h 45m

Las Vegas Harry Reid Intl

Fri 6/5

10:30 pm-1:10 am

Nonstop1h 40m

$197

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 6/2

1:25 pm-11:29 pm

1 stop11h 04m

Las Vegas Harry Reid Intl

Tue 6/9

2:32 pm-5:32 pm

Nonstop2h 00m

$199

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 6/2

1:25 pm-8:03 pm

1 stop7h 38m

Las Vegas Harry Reid Intl

Thu 6/4

6:30 am-12:38 pm

1 stop5h 08m

$204

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Mon 6/1

5:40 pm-6:25 pm

Nonstop1h 45m

Las Vegas Harry Reid Intl

Thu 6/4

8:40 am-11:30 am

Nonstop1h 50m

$207

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Tue 7/28

1:25 pm-8:27 pm

1 stop8h 02m

Las Vegas Harry Reid Intl

Thu 7/30

6:15 am-12:29 pm

1 stop5h 14m

$210

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Las Vegas from

How to get the cheapest flight ticket from Idaho 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 cheapest month to fly to Las Vegas?

The month of June is, on average, the cheapest month to fly to Las Vegas from Idaho, with most prices found around $31. The month of October is another great option to travel to Las Vegas, with average flight prices from Idaho averaging around $34.

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 $263. Flights from Idaho to Las Vegas on a Thursday will generally be more expensive and average around $350. 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 $219. Flights to Las Vegas are more costly in the morning, with an average ticket price of $357. 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 to Las Vegas Harry Reid Intl flight route?

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

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

You are more likely to see cheaper flights to Las Vegas from Idaho when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $255 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 for as low as $195 on momondo.

Can stopping save me money on Idaho to Las Vegas flights?

No. A direct flight is the cheapest option for a flight between Idaho to Las Vegas.

Cheap Idaho to Las Vegas flight deals and tips

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

Best Price Found

$88

Fastest flight time

1h 35m

Direct flights

Every day

Airports in Las Vegas

1 airport
The best one-way flight to Las Vegas from Idaho in the past 72 hours is $88. The best round-trip flight deal from Idaho to Las Vegas found on momondo in the last 72 hours is $103.
The fastest flight from Idaho to Las Vegas takes 1h 35m
Direct flights go from Idaho to Las Vegas every day.
There is 1 airport in Las Vegas. From Idaho there are direct flights to Las Vegas Harry Reid Intl (LAS).

Frequently asked questions about flying from Idaho to Las Vegas

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

    Prices for flights from Idaho to Las Vegas Harry Reid Intl Airport are refreshed on a daily basis.

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

  • How old do you have to be to fly from Idaho 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 to Las Vegas Harry Reid Intl Airport.

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

    The required travel and health documents for your Las Vegas Harry Reid Intl 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 Las Vegas Harry Reid Intl 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 Idaho to Las Vegas?

Best airlines flying from Idaho to Las Vegas

Compare and see reviews for airlines that fly from Idaho to Las Vegas with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $39Free CancellationRating
6.3
8,635 reviews
Search Spirit Airlines flights
Hawaiian AirlinesPriceFrom $68Free CancellationRating
7.8
2,837 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $77Free CancellationRating
7.9
8,458 reviews
Search Delta flights
FrontierPriceFrom $78Free CancellationRating
5.6
2,958 reviews
Search Frontier flights
Allegiant AirPriceFrom $80Free CancellationRating
7.3
709 reviews
Search Allegiant Air flights
Breeze AirwaysPriceFrom $88Free CancellationRating
8.1
283 reviews
Search Breeze Airways flights
Alaska AirlinesPriceFrom $117Free CancellationRating
7.9
12,348 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $137Free CancellationRating
8.0
4,305 reviews
Search Southwest flights
United AirlinesPriceFrom $186Free CancellationRating
7.4
9,695 reviews
Search United Airlines flights
JetBluePriceFrom $191Free CancellationRating
7.1
2,977 reviews
Search JetBlue flights

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
Mesquite
Kingman
Pahrump
Furnace Creek
Sunrise Manor
Boulder City
Primm
Winchester
Needles

Why use momondo?

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

It is quick and easy to find Idaho to Las Vegas flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Las Vegas that suits you.

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

All flight searches from Idaho 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 to Las Vegas?

Once all potential Idaho to Las Vegas flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Idaho to Las Vegas 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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1 adult
Tue 6/9
Tue 6/16

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