$50+ Cheap flights from Idaho Falls to Las Vegas (IDA - LAS)
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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — LAS
Apr 15 — Apr 221
Round-trip
1 adult, Economy
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Find cheap flights from Idaho Falls to Las Vegas with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Idaho Falls Fanning Field to Las Vegas Harry Reid Intl are usually found in June or August, booked 54 days in advance, depart on a Monday or Thursday and return on a Tuesday
Cheap flight deals from Idaho Falls to Las Vegas
Cheapest
Best
Last-minute
One-way
Cheapest flights from Idaho Falls to Las VegasExplore the most affordable flight options available from Idaho Falls to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.
Explore the most affordable flight options available from Idaho Falls to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.
This Booking.com deal was found by Cheapflights users on 3/13. 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.
Mon 5/1110:21 pm
IDA
- LAS
Nonstop1h 41m
Allegiant Air
Fri 5/2210:15 am
LAS
- IDA
Nonstop1h 45m
Allegiant Air
Deal found 3/13![Allegiant Air logo]()
$80
This Cheapflightsfares deal was found by Cheapflights users on 3/11. 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.
Mon 5/1810:21 pm
IDA
- LAS
Nonstop1h 41m
Allegiant Air
Fri 5/2210:15 am
LAS
- IDA
Nonstop1h 45m
Allegiant Air
Deal found 3/11![Allegiant Air logo]()
$93
This Cheapflightsfares deal was found by Cheapflights users on 3/11. 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.
Mon 5/1110:21 pm
IDA
- LAS
Nonstop1h 41m
Allegiant Air
Fri 5/1512:42 pm
LAS
- IDA
Nonstop1h 45m
Allegiant Air
Deal found 3/11![Allegiant Air logo]()
$97
This Cheapflightsfares deal was found by Cheapflights users on 3/12. 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.
Mon 4/610:06 pm
IDA
- LAS
Nonstop1h 41m
Allegiant Air
Fri 4/1012:42 pm
LAS
- IDA
Nonstop1h 45m
Allegiant Air
Deal found 3/12![Allegiant Air logo]()
$101
This Mytrip deal was found by Cheapflights users on 3/15. 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 4/310:06 pm
IDA
- LAS
Nonstop1h 41m
Allegiant Air
Fri 4/1012:42 pm
LAS
- IDA
Nonstop1h 45m
Allegiant Air
Deal found 3/15![Allegiant Air logo]()
$106
This Cheapflightsfares deal was found by Cheapflights users on 3/14. 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 4/310:06 pm
IDA
- LAS
Nonstop1h 41m
Allegiant Air
Fri 4/1712:42 pm
LAS
- IDA
Nonstop1h 45m
Allegiant Air
Deal found 3/14![Allegiant Air logo]()
$109
This Cheapflightsfares deal was found by Cheapflights users on 3/15. 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.
Mon 3/3010:13 pm
IDA
- LAS
Nonstop1h 46m
Allegiant Air
Mon 4/612:27 pm
LAS
- IDA
Nonstop1h 45m
Allegiant Air
Deal found 3/15![Allegiant Air logo]()
$115
This Cheapflightsfares deal was found by Cheapflights users on 3/14. 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 4/310:06 pm
IDA
- LAS
Nonstop1h 41m
Allegiant Air
Mon 4/612:27 pm
LAS
- IDA
Nonstop1h 45m
Allegiant Air
Deal found 3/14![Allegiant Air logo]()
$119
Best flights from Idaho Falls to Las VegasDiscover carefully curated flight deals from Idaho Falls to Las Vegas that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 16, 2026.
Discover carefully curated flight deals from Idaho Falls to Las Vegas that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 16, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/11. 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.
Mon 4/204:59 pm
IDA
- LAS
1 stop8h 00m
Alaska Airlines
Fri 4/248:54 pm
LAS
- IDA
1 stop17h 35m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$322
This Delta deal was found by Cheapflights users on 3/11. 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.
Fri 5/293:16 pm
IDA
- LAS
1 stop3h 51m
Delta
Mon 6/16:00 am
LAS
- IDA
1 stop3h 47m
Delta
Deal found 3/11![Delta logo]()
$455
This Alaska Airlines deal was found by Cheapflights users on 3/11. 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.
Mon 5/116:00 am
IDA
- LAS
2 stops18h 13m
Alaska Airlines
Fri 5/228:37 pm
LAS
- IDA
2 stops15h 40m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$455
This Delta deal was found by Cheapflights users on 3/15. 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.
Wed 4/226:58 pm
IDA
- LAS
1 stop5h 39m
Delta
Mon 4/275:20 pm
LAS
- IDA
1 stop4h 20m
Delta
Deal found 3/15![Delta logo]()
$487
This Alaska Airlines deal was found by Cheapflights users on 3/11. 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 5/291:54 pm
IDA
- LAS
1 stop6h 03m
Alaska Airlines
Mon 6/18:37 pm
LAS
- IDA
2 stops15h 40m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$481
This Alaska Airlines deal was found by Cheapflights users on 3/12. 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 3/275:59 pm
IDA
- LAS
1 stop7h 00m
Alaska Airlines
Mon 3/307:00 am
LAS
- IDA
1 stop9h 19m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$497
Last-minute flights from Idaho Falls to Las VegasDiscover last-minute flight deals from Idaho Falls to Las Vegas. Data last updated March 16, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho Falls to Las Vegas. Data last updated March 16, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 3/14. 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 3/2710:13 pm
IDA
- LAS
Nonstop1h 46m
Allegiant Air
Fri 4/312:27 pm
LAS
- IDA
Nonstop1h 45m
Allegiant Air
Deal found 3/14![Allegiant Air logo]()
$133
This Cheapflightsfares deal was found by Cheapflights users on 3/15. 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.
Mon 3/3010:13 pm
IDA
- LAS
Nonstop1h 46m
Allegiant Air
Mon 4/612:27 pm
LAS
- IDA
Nonstop1h 45m
Allegiant Air
Deal found 3/15![Allegiant Air logo]()
$115
This Mytrip deal was found by Cheapflights users on 3/15. 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 4/310:06 pm
IDA
- LAS
Nonstop1h 41m
Allegiant Air
Fri 4/1012:42 pm
LAS
- IDA
Nonstop1h 45m
Allegiant Air
Deal found 3/15![Allegiant Air logo]()
$106
This Cheapflightsfares deal was found by Cheapflights users on 3/14. 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 4/310:06 pm
IDA
- LAS
Nonstop1h 41m
Allegiant Air
Fri 4/1712:42 pm
LAS
- IDA
Nonstop1h 45m
Allegiant Air
Deal found 3/14![Allegiant Air logo]()
$109
This Cheapflightsfares deal was found by Cheapflights users on 3/14. 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 4/310:06 pm
IDA
- LAS
Nonstop1h 41m
Allegiant Air
Mon 4/612:27 pm
LAS
- IDA
Nonstop1h 45m
Allegiant Air
Deal found 3/14![Allegiant Air logo]()
$119
This Cheapflightsfares deal was found by Cheapflights users on 3/12. 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.
Mon 4/610:06 pm
IDA
- LAS
Nonstop1h 41m
Allegiant Air
Fri 4/1012:42 pm
LAS
- IDA
Nonstop1h 45m
Allegiant Air
Deal found 3/12![Allegiant Air logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1310:21 pm
IDA
- LAS
Nonstop1h 41m
Allegiant Air
Fri 4/1712:42 pm
LAS
- IDA
Nonstop1h 45m
Allegiant Air
Deal found 3/13![Allegiant Air logo]()
$139
This Cheapflightsfares deal was found by Cheapflights users on 3/11. 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 4/1710:21 pm
IDA
- LAS
Nonstop1h 41m
Allegiant Air
Mon 4/2012:42 pm
LAS
- IDA
Nonstop1h 45m
Allegiant Air
Deal found 3/11![Allegiant Air logo]()
$144
One-way flights from Idaho Falls to Las VegasSearch for one-way flight options from Idaho Falls to Las Vegas. Find affordable one-way fares based on user searches. Data last updated March 16, 2026.
Search for one-way flight options from Idaho Falls to Las Vegas. Find affordable one-way fares based on user searches. Data last updated March 16, 2026.
This Kissandfly.com deal was found by Cheapflights users on 3/14. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:21 pm
IDA
- LAS
Nonstop1h 41m
Allegiant Air
Deal found 3/14![Allegiant Air logo]()
$50
This Kiwi.com deal was found by Cheapflights users on 3/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1510:21 pm
IDA
- LAS
Nonstop1h 41m
Allegiant Air
Deal found 3/16![Allegiant Air logo]()
$58
This Cheapflightsfares deal was found by Cheapflights users on 3/12. 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.
Mon 4/2010:21 pm
IDA
- LAS
Nonstop1h 41m
Allegiant Air
Deal found 3/12![Allegiant Air logo]()
$62
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1310:21 pm
IDA
- LAS
Nonstop1h 41m
Allegiant Air
Deal found 3/13![Allegiant Air logo]()
$67
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/204:17 pm
IDA
- LAS
1 stop5h 50m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/114:17 pm
IDA
- LAS
1 stop6h 10m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/2310:13 pm
IDA
- LAS
Nonstop1h 46m
Allegiant Air
Deal found 3/14![Allegiant Air logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/134:17 pm
IDA
- LAS
1 stop5h 16m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$124
This Alaska Airlines deal was found by Cheapflights users on 3/15. 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.
Sat 5/164:03 pm
IDA
- LAS
1 stop5h 17m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/184:17 pm
IDA
- LAS
1 stop6h 10m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$127
This American Airlines deal was found by Cheapflights users on 3/15. 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.
Wed 5/137:48 am
IDA
- LAS
1 stop6h 08m
American Airlines
Deal found 3/15![American Airlines logo]()
$156
Find flight deals from Idaho Falls to Las Vegas
Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to Las Vegas (LAS). 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 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $80 (Booking.com) |
One-way from | $50 (Kissandfly.com) |
Popular in | December |
Cheapest in | June |
Average price | $179 |
Good round-trip deal | $140 or less |
Good one-way deal | $106 or less |
Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated March 16, 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
Cheapest round-trip
Idaho FallsLas Vegas
IDA - LAS
IDALAS
Idaho Falls Fanning Field
Mon 4/20
4:59 pm-11:59 pm
1 stop8h 00m
Las Vegas Harry Reid Intl
Fri 4/24
8:54 pm-3:29 pm
1 stop17h 35m
$322
Quickest round-trip
Idaho FallsLas Vegas
IDA - LAS
IDALAS
Idaho Falls Fanning Field
Fri 5/29
3:16 pm-6:07 pm
1 stop3h 51m
Las Vegas Harry Reid Intl
Mon 6/1
6:00 am-10:47 am
1 stop3h 47m
$455
Idaho FallsLas Vegas
IDA - LAS
IDALAS
Idaho Falls Fanning Field
Mon 5/11
6:00 am-11:13 pm
2 stops18h 13m
Las Vegas Harry Reid Intl
Fri 5/22
8:37 pm-1:17 pm
2 stops15h 40m
$455
Idaho FallsLas Vegas
IDA - LAS
IDALAS
Idaho Falls Fanning Field
Fri 5/29
1:54 pm-6:57 pm
1 stop6h 03m
Las Vegas Harry Reid Intl
Mon 6/1
8:37 pm-1:17 pm
2 stops15h 40m
$481
Idaho FallsLas Vegas
IDA - LAS
IDALAS
Idaho Falls Fanning Field
Wed 4/22
6:58 pm-11:37 pm
1 stop5h 39m
Las Vegas Harry Reid Intl
Mon 4/27
5:20 pm-10:40 pm
1 stop4h 20m
$487
Idaho FallsLas Vegas
IDA - LAS
IDALAS
Idaho Falls Fanning Field
Fri 3/27
5:59 pm-11:59 pm
1 stop7h 00m
Las Vegas Harry Reid Intl
Mon 3/30
7:00 am-5:19 pm
1 stop9h 19m
$497
Cheapest one-way
Quickest one-way
Idaho FallsLas Vegas
IDA - LAS
IDALAS
Idaho Falls Fanning Field
Mon 4/20
10:21 pm-11:02 pm
Nonstop1h 41m
$62
Idaho FallsLas Vegas
IDA - LAS
IDALAS
Idaho Falls Fanning Field
Fri 5/15
10:21 pm-11:02 pm
Nonstop1h 41m
$62
Idaho FallsLas Vegas
IDA - LAS
IDALAS
Idaho Falls Fanning Field
Mon 5/11
4:17 pm-9:27 pm
1 stop6h 10m
$116
Idaho FallsLas Vegas
IDA - LAS
IDALAS
Idaho Falls Fanning Field
Mon 4/13
4:17 pm-8:33 pm
1 stop5h 16m
$124
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from Idaho Falls to Las Vegas
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 Idaho Falls to Las Vegas in March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Idaho Falls-Las Vegas flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Idaho Falls-Las Vegas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Idaho Falls-Las Vegas flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Idaho Falls-Las Vegas 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 Idaho Falls-Las Vegas 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 Idaho Falls to Las Vegas
Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Idaho Falls with our price prediction graph.
IDA-LAS
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 Idaho Falls to Las Vegas
How far ahead should I book a flight from Idaho Falls to Las Vegas?
Use this chart to determine the optimal time to book a round-trip flight from Idaho Falls to Las Vegas. Price data was last updated on March 13, 2026.
The best time to book flights from Idaho Falls to Las Vegas is 26 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Idaho Falls to Las Vegas?
Currently, August is the cheapest month in which you can book a flight from Idaho Falls to Las Vegas (average of $67). Flying from Idaho Falls to Las Vegas in March is currently the most expensive (average of $130). 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 IDA to LAS?
Find hourly flight availability from Idaho Falls to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 16, 2026.
When flying from Idaho Falls to Las Vegas, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Reviews of airlines servicing Las Vegas
Get insights into the airlines that provide service to Las Vegas. 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 Las Vegas. Reviews last updated March 16, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andUnited Airlines from Idaho Falls to Las Vegas have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.1
Comfort
7.8
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.1
Comfort
7.8
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.1
Comfort
7.8
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.1
Comfort
7.8
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.1
Comfort
7.8
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.1
Comfort
7.8
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
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Find useful and relevant information for your journey from Idaho Falls to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Book flights to Las Vegas if you plan to visit one of these locationsParadise
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Top 4 airlines flying from Idaho Falls to Las Vegas
Discover the top 4 airlines that operate flights from Idaho Falls to Las Vegas. 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 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$85 | Average$154 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$120 | Average$330 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$132 | Average$333 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$194 | Average$338 | FlexibilityNo cancel fee | On-time69% |