$49+ Cheap flights from Idaho Falls to Las Vegas (IDA - LAS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — LAS
Oct 14 — Oct 211
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 July or January, booked 84 days in advance, depart on a Monday or Thursday and return on a Wednesday
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 September 14, 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 September 14, 2026.
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:30 pm -
Nonstop1h 44m
Fri 10/3010:46 am -
Nonstop1h 48m
Deal found 9/10![Allegiant Air logo]()
$77
This CheapOair deal was found by Cheapflights users on 9/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:33 pm -
Nonstop1h 44m
Fri 10/3010:46 am -
Nonstop1h 48m
Deal found 9/11![Allegiant Air logo]()
$81
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/129:33 pm -
Nonstop1h 44m
Fri 10/3010:46 am -
Nonstop1h 48m
Deal found 9/13![Allegiant Air logo]()
$93
This CheapOair deal was found by Cheapflights users on 9/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:21 pm -
Nonstop1h 45m
Fri 10/21:12 pm -
Nonstop1h 48m
Deal found 9/11![Allegiant Air logo]()
$103
This Cheapflightsfares deal was found by Cheapflights users on 9/12. 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 10/57:42 pm -
Nonstop1h 44m
Fri 10/91:12 pm -
Nonstop1h 48m
Deal found 9/12![Allegiant Air logo]()
$105
This Booking.com deal was found by Cheapflights users on 9/13. 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 11/167:47 pm -
Nonstop1h 45m
Mon 11/2312:48 pm -
Nonstop1h 46m
Deal found 9/13![Allegiant Air logo]()
$107
This Booking.com deal was found by Cheapflights users on 9/10. 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 12/77:58 pm -
Nonstop1h 46m
Fri 12/1110:00 am -
Nonstop1h 51m
Deal found 9/10![Allegiant Air logo]()
$109
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 10/308:28 pm -
Nonstop1h 44m
Mon 11/29:48 am -
Nonstop1h 48m
Deal found 9/11![Allegiant Air logo]()
$128
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 September 14, 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 September 14, 2026.
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/42:35 pm -
1 stop5h 29m
Tue 2/93:30 pm -
1 stop4h 38m
Deal found 9/11![United Airlines logo]()
$301
This Delta deal was found by Cheapflights users on 9/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:00 am -
1 stop3h 34m
Fri 11/135:00 pm -
1 stop3h 59m
Deal found 9/12![Delta logo]()
$321
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 1/153:58 pm -
2 stops26h 02m
Fri 1/221:44 pm -
1 stop8h 09m
Deal found 9/10![Alaska Airlines logo]()
$438
This Delta deal was found by Cheapflights users on 9/10. 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 12/46:59 pm -
1 stop5h 54m
Mon 12/79:45 am -
2 stops7h 32m
Deal found 9/10![Delta logo]()
$322
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/262:35 pm -
1 stop7h 10m
Fri 10/305:15 am -
1 stop7h 13m
Deal found 9/13![United Airlines logo]()
$331
This Alaska Airlines deal was found by Cheapflights users on 9/12. 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.
Sat 10/243:57 pm -
1 stop5h 06m
Thu 10/2912:17 pm -
2 stops9h 42m
Deal found 9/12![Alaska Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/224:05 pm -
1 stop5h 51m
Mon 10/265:15 am -
1 stop7h 13m
Deal found 9/11![United Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 9/10. 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 10/21:05 pm -
2 stops10h 47m
Mon 10/59:53 am -
2 stops7h 24m
Deal found 9/10![Delta logo]()
$420
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:09 am -
1 stop6h 03m
Mon 11/27:49 pm -
2 stops16h 27m
Deal found 9/14![Alaska Airlines logo]()
$441
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/54:05 pm -
1 stop5h 06m
Fri 10/95:15 am -
1 stop7h 09m
Deal found 9/14![United Airlines logo]()
$441
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/306:57 pm -
1 stop5h 37m
Mon 1/41:05 pm -
2 stops8h 14m
Deal found 9/14![Delta logo]()
$443
Last-minute flights from Idaho Falls to Las VegasDiscover last-minute flight deals from Idaho Falls to Las Vegas. Data last updated September 14, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho Falls to Las Vegas. Data last updated September 14, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:21 pm -
Nonstop1h 45m
Fri 10/21:12 pm -
Nonstop1h 48m
Deal found 9/11![Allegiant Air logo]()
$103
This Cheapflightsfares deal was found by Cheapflights users on 9/12. 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 10/57:42 pm -
Nonstop1h 44m
Fri 10/91:12 pm -
Nonstop1h 48m
Deal found 9/12![Allegiant Air logo]()
$105
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/129:33 pm -
Nonstop1h 44m
Fri 10/3010:46 am -
Nonstop1h 48m
Deal found 9/13![Allegiant Air logo]()
$93
This CheapOair deal was found by Cheapflights users on 9/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:33 pm -
Nonstop1h 44m
Fri 10/3010:46 am -
Nonstop1h 48m
Deal found 9/11![Allegiant Air logo]()
$81
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:30 pm -
Nonstop1h 44m
Fri 10/3010:46 am -
Nonstop1h 48m
Deal found 9/10![Allegiant Air logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 10/267:30 pm -
Nonstop1h 44m
Mon 11/29:48 am -
Nonstop1h 48m
Deal found 9/12![Allegiant Air logo]()
$138
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 10/308:28 pm -
Nonstop1h 44m
Mon 11/29:48 am -
Nonstop1h 48m
Deal found 9/11![Allegiant Air logo]()
$128
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 September 14, 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 September 14, 2026.
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:30 pm -
Nonstop1h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Allegiant Air logo]()
$49
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:30 pm -
Nonstop1h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Allegiant Air logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Fri 12/117:58 pm -
Nonstop1h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Allegiant Air logo]()
$68
This Super.com deal was found by Cheapflights users on 9/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/910:49 pm -
Nonstop1h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Allegiant Air logo]()
$75
This Super.com deal was found by Cheapflights users on 9/12. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:45 pm -
Nonstop1h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Allegiant Air logo]()
$104
This CheapOair deal was found by Cheapflights users on 9/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:21 pm -
Nonstop1h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Allegiant Air logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Sun 11/19:02 am -
1 stop24h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Fri 9/186:51 pm -
Nonstop1h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Allegiant Air logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/261:26 pm -
1 stop4h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$136
This Delta deal was found by Cheapflights users on 9/10. 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.
Thu 10/86:56 pm -
1 stop6h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$151
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 September 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $77 (CheapOair) |
One-way from | $49 (CheapOair) |
Popular in | February |
Cheapest in | July |
Average price | $172 |
Good round-trip deal | $124 or less |
Good one-way deal | $55 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 7,457,451 searches. Data last updated September 14, 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
Quickest round-trip
Idaho FallsLas Vegas
IDA Idaho Falls Fanning Field - LAS Las Vegas Harry Reid Intl
IDALAS
Idaho Falls Fanning Field
Fri 12/11
7:58 pm-8:44 pm
Nonstop1h 46m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$68
Idaho FallsLas Vegas
IDA Idaho Falls Fanning Field - LAS Las Vegas Harry Reid Intl
IDALAS
Idaho Falls Fanning Field
Mon 10/26
6:56 pm-11:59 pm
1 stop6h 03m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$151
Idaho FallsLas Vegas
IDA Idaho Falls Fanning Field - LAS Las Vegas Harry Reid Intl
IDALAS
Idaho Falls Fanning Field
Fri 10/9
6:56 pm-11:59 pm
1 stop6h 03m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$151
Idaho FallsLas Vegas
IDA Idaho Falls Fanning Field - LAS Las Vegas Harry Reid Intl
IDALAS
Idaho Falls Fanning Field
Thu 10/8
6:56 pm-11:59 pm
1 stop6h 03m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$151
Idaho FallsLas Vegas
IDA Idaho Falls Fanning Field - LAS Las Vegas Harry Reid Intl
IDALAS
Idaho Falls Fanning Field
Mon 2/22
6:45 pm-12:31 am
1 stop6h 46m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$151
Idaho FallsLas Vegas
IDA Idaho Falls Fanning Field - LAS Las Vegas Harry Reid Intl
IDALAS
Idaho Falls Fanning Field
Thu 2/18
6:45 pm-12:31 am
1 stop6h 46m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$161
Idaho FallsLas Vegas
IDA Idaho Falls Fanning Field - LAS Las Vegas Harry Reid Intl
IDALAS
Idaho Falls Fanning Field
Wed 12/30
6:57 pm-11:34 pm
1 stop5h 37m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$161
Idaho FallsLas Vegas
IDA Idaho Falls Fanning Field - LAS Las Vegas Harry Reid Intl
IDALAS
Idaho Falls Fanning Field
Thu 10/15
6:56 pm-11:59 pm
1 stop6h 03m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$161
Idaho FallsLas Vegas
IDA Idaho Falls Fanning Field - LAS Las Vegas Harry Reid Intl
IDALAS
Idaho Falls Fanning Field
Fri 12/11
5:35 am-1:12 pm
2 stops8h 37m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$166
Idaho FallsLas Vegas
IDA Idaho Falls Fanning Field - LAS Las Vegas Harry Reid Intl
IDALAS
Idaho Falls Fanning Field
Mon 9/28
6:57 pm-11:35 pm
1 stop5h 38m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$202
Showing 1-10 of 23 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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 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?
The best time to book flights from Idaho Falls to Las Vegas is 71 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, July is the cheapest month in which you can book a flight from Idaho Falls to Las Vegas (average of $134). Flying from Idaho Falls to Las Vegas in February is currently the most expensive (average of $278). 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 September 14, 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 September 14, 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.
Crew
8.5
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Food
7.0
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Crew
8.5
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Food
7.0
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Crew
8.5
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Food
7.0
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Crew
8.5
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Food
7.0
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Crew
8.5
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Food
7.0
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Crew
8.5
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Food
7.0
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
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Top 5 airlines flying from Idaho Falls to Las Vegas
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$89 | Average$161 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$140 | Average$382 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$194 | Average$305 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$204 | Average$320 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$279 | Average$542 | FlexibilityNo cancel fee | On-time71% |