$217+ Cheap flights from Idaho Falls to Ontario (IDA - ONT)
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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — ONT
Sep 16 — Sep 231
Round-trip
1 adult, Economy
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Find cheap flights from Idaho Falls to Ontario 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 Idaho Falls to Ontario
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Cheapest flights from Idaho Falls to OntarioExplore the most affordable flight options available from Idaho Falls to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2026.
Explore the most affordable flight options available from Idaho Falls to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 10/308:28 pm -
1 stop16h 34m
Sun 11/19:43 pm -
1 stop13h 53m
Deal found 8/14![Multiple Airlines logo]()
$316
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/31:53 pm -
1 stop5h 28m
Sat 11/74:09 pm -
1 stop5h 45m
Deal found 8/16![Alaska Airlines logo]()
$433
This Delta deal was found by Cheapflights users on 8/15. 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.
Tue 11/176:56 pm -
1 stop6h 02m
Sun 11/226:00 am -
1 stop15h 02m
Deal found 8/15![Delta logo]()
$460
This Booking.com deal was found by Cheapflights users on 8/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:09 am -
1 stop8h 07m
Tue 10/275:45 pm -
2 stops18h 36m
Deal found 8/16![Alaska Airlines logo]()
$463
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/21:05 pm -
1 stop4h 18m
Tue 11/35:03 pm -
1 stop4h 07m
Deal found 8/16![Delta logo]()
$469
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:18 am -
1 stop5h 58m
Fri 10/24:27 pm -
2 stops19h 54m
Deal found 8/16![Alaska Airlines logo]()
$493
This Booking.com deal was found by Cheapflights users on 8/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/223:57 pm -
1 stop8h 57m
Sat 10/246:02 am -
1 stop8h 18m
Deal found 8/15![Alaska Airlines logo]()
$503
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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.
Fri 10/233:57 pm -
1 stop19h 52m
Sun 10/257:25 am -
1 stop4h 56m
Deal found 8/15![Alaska Airlines logo]()
$504
This Travelocity deal was found by Cheapflights users on 8/13. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:58 pm -
1 stop10h 44m
Sun 10/256:02 am -
1 stop8h 18m
Deal found 8/13![Alaska Airlines logo]()
$505
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Sun 9/134:04 pm -
1 stop5h 49m
Sat 9/191:18 pm -
1 stop7h 00m
Deal found 8/14![United Airlines logo]()
$512
This American Airlines deal was found by Cheapflights users on 8/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:45 am -
1 stop6h 53m
Wed 11/44:51 pm -
1 stop4h 34m
Deal found 8/16![American Airlines logo]()
$513
Best flights from Idaho Falls to OntarioDiscover carefully curated flight deals from Idaho Falls to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2026.
Discover carefully curated flight deals from Idaho Falls to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/31:53 pm -
1 stop5h 28m
Sat 11/74:09 pm -
1 stop5h 45m
Deal found 8/16![Alaska Airlines logo]()
$433
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/21:05 pm -
1 stop4h 18m
Tue 11/35:03 pm -
1 stop4h 07m
Deal found 8/16![Delta logo]()
$469
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Sun 9/134:04 pm -
1 stop5h 49m
Sat 9/191:18 pm -
1 stop7h 00m
Deal found 8/14![United Airlines logo]()
$512
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/43:55 pm -
1 stop6h 54m
Sat 11/74:09 pm -
1 stop5h 45m
Deal found 8/16![Alaska Airlines logo]()
$433
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:04 am -
1 stop6h 14m
Tue 11/34:09 pm -
1 stop5h 45m
Deal found 8/16![Alaska Airlines logo]()
$433
This United Airlines deal was found by Cheapflights users on 8/11. 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 9/34:04 pm -
1 stop5h 49m
Fri 9/115:00 am -
1 stop7h 29m
Deal found 8/11![United Airlines logo]()
$525
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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 10/303:57 pm -
1 stop19h 52m
Mon 11/26:00 am -
1 stop8h 18m
Deal found 8/14![Alaska Airlines logo]()
$504
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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.
Fri 10/233:57 pm -
1 stop19h 52m
Mon 10/267:25 am -
1 stop4h 56m
Deal found 8/15![Alaska Airlines logo]()
$504
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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.
Fri 11/63:55 pm -
1 stop18h 49m
Sun 11/87:15 am -
1 stop5h 01m
Deal found 8/15![Alaska Airlines logo]()
$504
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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.
Fri 10/233:57 pm -
1 stop19h 52m
Sun 10/257:25 am -
1 stop4h 56m
Deal found 8/15![Alaska Airlines logo]()
$504
This Alaska Airlines deal was found by Cheapflights users on 8/11. 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 9/183:57 pm -
2 stops20h 19m
Mon 9/217:59 pm -
1 stop25h 57m
Deal found 8/11![Alaska Airlines logo]()
$538
Last-minute flights from Idaho Falls to OntarioDiscover last-minute flight deals from Idaho Falls to Ontario. Data last updated August 17, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho Falls to Ontario. Data last updated August 17, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 8/215:33 pm -
2 stops18h 29m
Sun 8/233:40 pm -
1 stop18h 07m
Deal found 8/14![Multiple Airlines logo]()
$565
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/283:57 pm -
1 stop5h 27m
Tue 9/13:07 pm -
1 stop6h 49m
Deal found 8/13![Alaska Airlines logo]()
$566
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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.
Sat 8/296:18 am -
1 stop5h 46m
Wed 9/23:07 pm -
1 stop6h 49m
Deal found 8/14![Alaska Airlines logo]()
$519
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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.
Wed 9/23:57 pm -
1 stop5h 27m
Wed 9/97:12 am -
1 stop5h 12m
Deal found 8/15![Alaska Airlines logo]()
$526
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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.
Wed 9/26:18 am -
1 stop5h 46m
Sun 9/67:12 am -
1 stop5h 12m
Deal found 8/15![Alaska Airlines logo]()
$553
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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.
Sun 9/66:18 am -
1 stop5h 46m
Wed 9/97:12 am -
1 stop5h 12m
Deal found 8/15![Alaska Airlines logo]()
$560
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Sun 9/134:04 pm -
1 stop5h 49m
Sat 9/191:18 pm -
1 stop7h 00m
Deal found 8/14![United Airlines logo]()
$512
This United Airlines deal was found by Cheapflights users on 8/13. 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 9/144:04 pm -
1 stop5h 49m
Wed 9/165:00 am -
1 stop7h 29m
Deal found 8/13![United Airlines logo]()
$549
This Priceline deal was found by Cheapflights users on 8/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/206:18 am -
1 stop5h 58m
Sat 9/263:14 pm -
1 stop6h 42m
Deal found 8/16![Alaska Airlines logo]()
$540
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/233:57 pm -
1 stop18h 54m
Fri 10/27:12 am -
1 stop5h 12m
Deal found 8/16![Alaska Airlines logo]()
$469
One-way flights from Idaho Falls to OntarioSearch for one-way flight options from Idaho Falls to Ontario. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
Search for one-way flight options from Idaho Falls to Ontario. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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.
Sat 10/36:09 am -
1 stop8h 07m
Deal found 8/14![Alaska Airlines logo]()
$217
This United Airlines deal was found by Cheapflights users on 8/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:00 am -
1 stop6h 50m
Deal found 8/16![United Airlines logo]()
$260
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Sun 10/44:05 pm -
1 stop5h 53m
Deal found 8/14![United Airlines logo]()
$293
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Fri 9/44:04 pm -
1 stop5h 51m
Deal found 8/13![United Airlines logo]()
$294
This United Airlines deal was found by Cheapflights users on 8/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/204:04 pm -
1 stop5h 49m
Deal found 8/15![United Airlines logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:18 am -
2 stops10h 34m
Deal found 8/13![Alaska Airlines logo]()
$344
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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.
Sun 10/46:09 am -
2 stops11h 56m
Deal found 8/14![Alaska Airlines logo]()
$347
This American Airlines deal was found by Cheapflights users on 8/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:00 am -
2 stops12h 15m
Deal found 8/16![American Airlines logo]()
$351
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:18 am -
2 stops10h 29m
Deal found 8/13![Alaska Airlines logo]()
$370
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/43:57 pm -
2 stops24h 55m
Deal found 8/13![Alaska Airlines logo]()
$376
Find flight deals from Idaho Falls to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to Ontario (ONT). 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 August 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $316 (Kiwi.com) |
One-way from | $217 (Alaska Airlines) |
Popular in | November |
Cheapest in | February |
Average price | $476 |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho Falls to Ontario 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 August 17, 2026.
Use the filters below to find and compare flights from Idaho Falls to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Tue 11/3
1:53 pm-6:21 pm
1 stop5h 28m
Ontario
Sat 11/7
4:09 pm-10:54 pm
1 stop5h 45m
$433
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Wed 11/4
3:55 pm-9:49 pm
1 stop6h 54m
Ontario
Sat 11/7
4:09 pm-10:54 pm
1 stop5h 45m
$433
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Tue 11/3
6:04 am-11:18 am
1 stop6h 14m
Ontario
Tue 11/3
4:09 pm-10:54 pm
1 stop5h 45m
$433
Quickest round-trip
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Mon 11/2
1:05 pm-4:23 pm
1 stop4h 18m
Ontario
Tue 11/3
5:03 pm-10:10 pm
1 stop4h 07m
$469
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Fri 10/30
3:57 pm-10:49 am
1 stop19h 52m
Ontario
Mon 11/2
6:00 am-3:18 pm
1 stop8h 18m
$504
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Fri 10/23
3:57 pm-10:49 am
1 stop19h 52m
Ontario
Mon 10/26
7:25 am-1:21 pm
1 stop4h 56m
$504
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Fri 11/6
3:55 pm-9:44 am
1 stop18h 49m
Ontario
Sun 11/8
7:15 am-1:16 pm
1 stop5h 01m
$504
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Fri 10/23
3:57 pm-10:49 am
1 stop19h 52m
Ontario
Sun 10/25
7:25 am-1:21 pm
1 stop4h 56m
$504
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Sun 9/13
4:04 pm-8:53 pm
1 stop5h 49m
Ontario
Sat 9/19
1:18 pm-9:18 pm
1 stop7h 00m
$512
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Thu 9/3
4:04 pm-8:53 pm
1 stop5h 49m
Ontario
Fri 9/11
5:00 am-1:29 pm
1 stop7h 29m
$525
Showing 1-10 of 15 resultsSorted by cheapest first
Compare providers for flights from Idaho Falls to Ontario
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 Ontario in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Idaho Falls-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Idaho Falls-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Idaho Falls-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Idaho Falls-Ontario 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-Ontario 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 Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Idaho Falls with our price prediction graph.
IDA-ONT
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 Ontario
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated August 17, 2026.
Peruse reviews from past customers who have flown with Delta and United Airlines from Idaho Falls to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Overall
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Overall
7.8
Comfort
7.8
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Related info for your journey
Find useful and relevant information for your journey from Idaho Falls to Ontario. 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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Alternative routes for Idaho Falls to Ontario
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Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 17, 2026.
Idaho Falls and Ontario flights
Browse other Idaho Falls and Ontario flight options. Last updated on August 17, 2026.
Other flights from Idaho Falls
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Top 2 airlines flying from Idaho Falls to Ontario
Discover the top 2 airlines that operate flights from Idaho Falls to Ontario. 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 August 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$143 | Average$565 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$155 | Average$386 | FlexibilityNo cancel fee | On-timeN/A |