$66+ Cheap flights from Las Vegas to Idaho Falls (LAS - IDA)
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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — IDA
Oct 13 — Oct 201
Round-trip
1 adult, Economy
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Find cheap flights from Las Vegas to Idaho Falls 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.Cheap flight deals from Las Vegas to Idaho Falls
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Cheapest flights from Las Vegas to Idaho FallsExplore the most affordable flight options available from Las Vegas to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 2026.
Explore the most affordable flight options available from Las Vegas to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 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.
Fri 10/161:12 pm -
Nonstop1h 48m
Mon 10/267:30 pm -
Nonstop1h 44m
Deal found 9/9![Allegiant Air logo]()
$82
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.
Fri 10/161:12 pm -
Nonstop1h 48m
Mon 10/199:33 pm -
Nonstop1h 44m
Deal found 9/11![Allegiant Air logo]()
$86
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:12 pm -
Nonstop1h 48m
Mon 10/57:42 pm -
Nonstop1h 44m
Deal found 9/9![Allegiant Air logo]()
$101
This CheapOair deal was found by Cheapflights users on 9/8. 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.
Fri 9/189:15 am -
Nonstop1h 49m
Mon 9/286:21 pm -
Nonstop1h 45m
Deal found 9/8![Allegiant Air logo]()
$104
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:45 am -
Nonstop1h 49m
Mon 10/57:42 pm -
Nonstop1h 44m
Deal found 9/9![Allegiant Air logo]()
$144
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:15 am -
Nonstop1h 49m
Mon 9/216:21 pm -
Nonstop1h 45m
Deal found 9/9![Allegiant Air logo]()
$148
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.
Fri 9/119:01 am -
Nonstop1h 49m
Mon 9/146:21 pm -
Nonstop1h 45m
Deal found 9/9![Allegiant Air logo]()
$181
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 9/148:45 am -
Nonstop1h 49m
Mon 9/286:21 pm -
Nonstop1h 45m
Deal found 9/11![Allegiant Air logo]()
$194
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/161:12 pm -
Nonstop1h 48m
Mon 10/261:26 pm -
1 stop4h 57m
Deal found 9/9![Multiple Airlines logo]()
$206
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:12 pm -
Nonstop1h 48m
Mon 10/51:38 pm -
1 stop5h 08m
Deal found 9/9![Multiple Airlines logo]()
$208
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/73:56 pm -
1 stop6h 03m
Mon 10/129:33 pm -
Nonstop1h 44m
Deal found 9/9![Multiple Airlines logo]()
$224
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 10/163:00 pm -
1 stop5h 59m
Mon 10/199:33 pm -
Nonstop1h 44m
Deal found 9/12![Multiple Airlines logo]()
$227
Best flights from Las Vegas to Idaho FallsDiscover carefully curated flight deals from Las Vegas to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.
Discover carefully curated flight deals from Las Vegas to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.
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.
Fri 10/161:12 pm -
Nonstop1h 48m
Mon 10/199:33 pm -
Nonstop1h 44m
Deal found 9/11![Allegiant Air logo]()
$86
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 10/1611:00 am -
2 stops9h 59m
Mon 10/199:33 pm -
Nonstop1h 44m
Deal found 9/12![Multiple Airlines logo]()
$293
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.
Fri 10/25:15 am -
1 stop7h 09m
Sun 10/42:28 pm -
1 stop7h 28m
Deal found 9/11![United Airlines logo]()
$310
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 10/307:02 am -
1 stop5h 19m
Mon 11/21:53 pm -
1 stop7h 40m
Deal found 9/10![Alaska Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 9/8. 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 10/86:10 am -
1 stop5h 12m
Sun 10/111:05 pm -
2 stops10h 17m
Deal found 9/8![Delta logo]()
$326
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 9/189:15 am -
Nonstop1h 49m
Mon 9/2812:24 pm -
1 stop6h 22m
Deal found 9/8![Multiple Airlines logo]()
$315
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:12 pm -
Nonstop1h 48m
Sun 10/410:02 am -
2 stops8h 44m
Deal found 9/9![Multiple Airlines logo]()
$319
This Alaska Airlines deal was found by Cheapflights users on 9/8. 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.
Wed 10/2811:22 am -
2 stops10h 37m
Sat 10/316:09 am -
2 stops14h 29m
Deal found 9/8![Alaska Airlines logo]()
$357
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/35:15 am -
1 stop7h 09m
Sat 10/104:05 pm -
1 stop5h 06m
Deal found 9/10![United Airlines logo]()
$381
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.
Fri 10/165:10 pm -
1 stop4h 00m
Mon 10/196:00 am -
2 stops10h 00m
Deal found 9/12![Delta logo]()
$390
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/59:53 am -
2 stops7h 24m
Sat 10/106:00 am -
1 stop3h 47m
Deal found 9/9![Delta logo]()
$395
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 10/225:15 am -
1 stop7h 09m
Sun 10/255:40 pm -
1 stop5h 15m
Deal found 9/11![United Airlines logo]()
$401
Last-minute flights from Las Vegas to Idaho FallsDiscover last-minute flight deals from Las Vegas to Idaho Falls. Data last updated September 13, 2026 and is based on user searches.
Discover last-minute flight deals from Las Vegas to Idaho Falls. Data last updated September 13, 2026 and is based on user searches.
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.
Fri 9/119:01 am -
Nonstop1h 49m
Mon 9/146:21 pm -
Nonstop1h 45m
Deal found 9/9![Allegiant Air logo]()
$181
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 9/148:45 am -
Nonstop1h 49m
Mon 9/286:21 pm -
Nonstop1h 45m
Deal found 9/11![Allegiant Air logo]()
$194
This CheapOair deal was found by Cheapflights users on 9/8. 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.
Fri 9/189:15 am -
Nonstop1h 49m
Mon 9/286:21 pm -
Nonstop1h 45m
Deal found 9/8![Allegiant Air logo]()
$104
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:15 am -
Nonstop1h 49m
Mon 9/216:21 pm -
Nonstop1h 45m
Deal found 9/9![Allegiant Air logo]()
$148
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:45 am -
Nonstop1h 49m
Mon 10/57:42 pm -
Nonstop1h 44m
Deal found 9/9![Allegiant Air logo]()
$144
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:12 pm -
Nonstop1h 48m
Mon 10/57:42 pm -
Nonstop1h 44m
Deal found 9/9![Allegiant Air logo]()
$101
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:12 pm -
Nonstop1h 48m
Mon 10/51:38 pm -
1 stop5h 08m
Deal found 9/9![Multiple Airlines logo]()
$208
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/73:56 pm -
1 stop6h 03m
Mon 10/129:33 pm -
Nonstop1h 44m
Deal found 9/9![Multiple Airlines logo]()
$224
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.
Fri 10/161:12 pm -
Nonstop1h 48m
Mon 10/267:30 pm -
Nonstop1h 44m
Deal found 9/9![Allegiant Air logo]()
$82
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.
Fri 10/161:12 pm -
Nonstop1h 48m
Mon 10/199:33 pm -
Nonstop1h 44m
Deal found 9/11![Allegiant Air logo]()
$86
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/161:12 pm -
Nonstop1h 48m
Mon 10/261:26 pm -
1 stop4h 57m
Deal found 9/9![Multiple Airlines logo]()
$206
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 10/163:00 pm -
1 stop5h 59m
Mon 10/199:33 pm -
Nonstop1h 44m
Deal found 9/12![Multiple Airlines logo]()
$227
One-way flights from Las Vegas to Idaho FallsSearch for one-way flight options from Las Vegas to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated September 13, 2026.
Search for one-way flight options from Las Vegas to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated September 13, 2026.
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.
Mon 9/218:45 am -
Nonstop1h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Allegiant Air logo]()
$66
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:15 am -
Nonstop1h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Allegiant Air logo]()
$67
This CheapOair deal was found by Cheapflights users on 9/8. 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 11/29:48 am -
Nonstop1h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Allegiant Air logo]()
$82
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.
Mon 9/288:45 am -
Nonstop1h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Allegiant Air logo]()
$87
This Cheapflightsfares deal was found by Cheapflights users on 9/8. 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 10/1211:51 am -
Nonstop1h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Allegiant Air logo]()
$92
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.
Wed 11/44:08 pm -
1 stop15h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$123
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:15 am -
1 stop7h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$151
This Priceline deal was found by Cheapflights users on 9/8. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/213:56 pm -
1 stop6h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Alaska Airlines logo]()
$161
This American Airlines deal was found by Cheapflights users on 9/8. 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.
Mon 11/23:41 pm -
1 stop6h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![American Airlines logo]()
$165
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.
Wed 11/412:57 pm -
2 stops8h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$171
Find flight deals from Las Vegas to Idaho Falls
Discover tips and strategies to find the most affordable flight options for your journey from Las Vegas (LAS) to Idaho Falls (IDA). 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 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $82 (CheapOair) |
One-way from | $66 (Super.com) |
Popular in | October |
Cheapest in | November |
Average price | $195 |
Good round-trip deal | $100 or less |
Good one-way deal | $108 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Las Vegas to Idaho Falls 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 13, 2026.
Use the filters below to find and compare flights from Las Vegas to Idaho Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
Las VegasIdaho Falls
LAS Las Vegas Harry Reid Intl - IDA Idaho Falls Fanning Field
LASIDA
Las Vegas Harry Reid Intl
Fri 9/18
9:15 am-12:04 pm
Nonstop1h 49m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$67
Las VegasIdaho Falls
LAS Las Vegas Harry Reid Intl - IDA Idaho Falls Fanning Field
LASIDA
Las Vegas Harry Reid Intl
Fri 10/16
1:12 pm-4:00 pm
Nonstop1h 48m
Idaho Falls Fanning Field
Mon 10/19
9:33 pm-10:17 pm
Nonstop1h 44m
$86
Las VegasIdaho Falls
LAS Las Vegas Harry Reid Intl - IDA Idaho Falls Fanning Field
LASIDA
Las Vegas Harry Reid Intl
Wed 10/28
5:15 am-1:28 pm
1 stop7h 13m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$151
Las VegasIdaho Falls
LAS Las Vegas Harry Reid Intl - IDA Idaho Falls Fanning Field
LASIDA
Las Vegas Harry Reid Intl
Mon 11/2
3:41 pm-10:59 pm
1 stop6h 18m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$165
Las VegasIdaho Falls
LAS Las Vegas Harry Reid Intl - IDA Idaho Falls Fanning Field
LASIDA
Las Vegas Harry Reid Intl
Wed 11/4
12:57 pm-10:10 pm
2 stops8h 13m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$171
Las VegasIdaho Falls
LAS Las Vegas Harry Reid Intl - IDA Idaho Falls Fanning Field
LASIDA
Las Vegas Harry Reid Intl
Fri 9/25
5:15 am-1:24 pm
1 stop7h 09m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$181
Las VegasIdaho Falls
LAS Las Vegas Harry Reid Intl - IDA Idaho Falls Fanning Field
LASIDA
Las Vegas Harry Reid Intl
Wed 10/28
4:35 pm-9:02 am
3 stops39h 27m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$183
Las VegasIdaho Falls
LAS Las Vegas Harry Reid Intl - IDA Idaho Falls Fanning Field
LASIDA
Las Vegas Harry Reid Intl
Wed 10/28
8:28 am-10:59 pm
2 stops13h 31m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$185
Las VegasIdaho Falls
LAS Las Vegas Harry Reid Intl - IDA Idaho Falls Fanning Field
LASIDA
Las Vegas Harry Reid Intl
Mon 10/12
5:15 am-1:24 pm
1 stop7h 09m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$202
Las VegasIdaho Falls
LAS Las Vegas Harry Reid Intl - IDA Idaho Falls Fanning Field
LASIDA
Las Vegas Harry Reid Intl
Tue 9/22
5:10 pm-10:22 pm
1 stop4h 12m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$214
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Las Vegas to Idaho Falls
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 Las Vegas to Idaho Falls 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 |
- Most accurate provider: When it comes to deals on Las Vegas-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Las Vegas-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Las Vegas-Idaho Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Las Vegas-Idaho Falls 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 Las Vegas-Idaho Falls 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 Las Vegas to Idaho Falls
Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Las Vegas with our price prediction graph.
LAS-IDA
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 Las Vegas to Idaho Falls
What is the cheapest month to book a flight from Las Vegas to Idaho Falls?
Currently, November is the cheapest month in which you can book a flight from Las Vegas to Idaho Falls (average of $96). Flying from Las Vegas to Idaho Falls in October is currently the most expensive (average of $285). 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 LAS to IDA?
Find hourly flight availability from Las Vegas to Idaho Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 13, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Las Vegas to Idaho Falls as you normally would.
Reviews of airlines servicing Idaho Falls
Get insights into the airlines that provide service to Idaho Falls. 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 Idaho Falls. Reviews last updated September 13, 2026.
Read through reviews of airlines operating flights from Las Vegas to Idaho Falls, such as Allegiant Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.1
Boarding
7.7
Food
5.9
Comfort
6.9
Overall
7.3
Entertainment
5.4
Reviews
1 / 20
2.0
MediocreNic,Aug 2026
SRQ - ALB
Crew
8.1
Boarding
7.7
Food
5.9
Comfort
6.9
Overall
7.3
Entertainment
5.4
Reviews
1 / 20
2.0
MediocreNic,Aug 2026
SRQ - ALB
Related info for your journey
Find useful and relevant information for your journey from Las Vegas to Idaho Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Idaho Falls?
Book flights to Idaho Falls if you plan to visit one of these locationsRexburg
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Other flights to Idaho Falls
Explore flights to Idaho Falls departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 13, 2026.
Las Vegas and Idaho Falls flights
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Top airline flying from Las Vegas to Idaho Falls
Discover the top airline that operate flights from Las Vegas to Idaho Falls. 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 7,457,451 searches. Data last updated September 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$87 | Average$117 | FlexibilityNo cancel fee | On-time88% |