$129+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — ONT
Sep 1 — Sep 81
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
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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
Cheapest
Best
Last-minute
One-way
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 2, 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 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/318:33 pm
IDA
- ONT
1 stop20h 16m
Multiple Airlines
Thu 9/311:15 am
ONT
- IDA
1 stop20h 39m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$268
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/1410:54 pm
IDA
- ONT
2 stops13h 08m
Multiple Airlines
Thu 8/2011:15 am
ONT
- IDA
1 stop22h 32m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 8/2. 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 8/1010:54 pm
IDA
- ONT
1 stop17h 20m
Multiple Airlines
Sun 11/152:58 pm
ONT
- IDA
1 stop20h 55m
Multiple Airlines
Deal found 8/2![Multiple Airlines logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 10/302:24 pm
IDA
- ONT
2 stops7h 24m
Multiple Airlines
Sun 11/19:43 pm
ONT
- IDA
1 stop13h 53m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$376
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 10/273:57 pm
IDA
- ONT
1 stop5h 18m
Alaska Airlines
Sat 10/312:13 pm
ONT
- IDA
1 stop7h 46m
Alaska Airlines
Deal found 7/31![Alaska Airlines logo]()
$433
This Trip.com deal was found by Cheapflights users on 7/31. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:18 am
IDA
- ONT
1 stop5h 58m
Alaska Airlines
Sat 9/196:02 am
ONT
- IDA
1 stop8h 18m
Alaska Airlines
Deal found 7/31![Alaska Airlines logo]()
$440
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 9/232:01 pm
IDA
- ONT
1 stop6h 02m
Alaska Airlines
Sat 9/267:12 am
ONT
- IDA
1 stop5h 12m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$443
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 9/126:18 am
IDA
- ONT
1 stop5h 58m
Alaska Airlines
Sat 9/123:14 pm
ONT
- IDA
1 stop6h 42m
Alaska Airlines
Deal found 7/31![Alaska Airlines logo]()
$447
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 2, 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 2, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/1. 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 10/273:57 pm
IDA
- ONT
1 stop5h 18m
Alaska Airlines
Sat 10/312:13 pm
ONT
- IDA
1 stop7h 46m
Alaska Airlines
Deal found 8/1![Alaska Airlines logo]()
$433
This Delta deal was found by Cheapflights users on 8/1. 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.
Sat 8/293:17 pm
IDA
- ONT
2 stops8h 28m
Delta
Sat 9/55:05 pm
ONT
- IDA
1 stop4h 27m
Delta
Deal found 8/1![Delta logo]()
$481
This United Airlines deal was found by Cheapflights users on 7/31. 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 9/124:04 pm
IDA
- ONT
1 stop5h 49m
United Airlines
Sun 9/131:18 pm
ONT
- IDA
1 stop7h 00m
United Airlines
Deal found 7/31![United Airlines logo]()
$563
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 9/232:01 pm
IDA
- ONT
1 stop6h 02m
Alaska Airlines
Sat 9/267:12 am
ONT
- IDA
1 stop5h 12m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$443
This Booking.com deal was found by Cheapflights users on 8/1. 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.
Sat 10/176:09 am
IDA
- ONT
2 stops11h 56m
Alaska Airlines
Sat 10/2411:13 am
ONT
- IDA
1 stop10h 46m
Alaska Airlines
Deal found 8/1![Alaska Airlines logo]()
$473
This Gotogate deal was found by Cheapflights users on 7/29. 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.
Thu 9/106:18 am
IDA
- ONT
1 stop18h 06m
Alaska Airlines
Tue 9/154:27 pm
ONT
- IDA
2 stops19h 57m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$473
This United Airlines deal was found by Cheapflights users on 7/28. 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 8/142:25 pm
IDA
- ONT
1 stop7h 28m
United Airlines
Fri 8/215:00 am
ONT
- IDA
1 stop7h 29m
United Airlines
Deal found 7/28![United Airlines logo]()
$593
This United Airlines deal was found by Cheapflights users on 7/29. 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 8/137:00 am
IDA
- ONT
1 stop6h 50m
United Airlines
Thu 8/205:00 am
ONT
- IDA
1 stop11h 16m
United Airlines
Deal found 7/29![United Airlines logo]()
$604
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 8/157:15 am
IDA
- ONT
1 stop6h 54m
Alaska Airlines
Wed 8/193:07 pm
ONT
- IDA
1 stop6h 49m
Alaska Airlines
Deal found 7/31![Alaska Airlines logo]()
$539
Last-minute flights from Idaho Falls to OntarioDiscover last-minute flight deals from Idaho Falls to Ontario. Data last updated August 2, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho Falls to Ontario. Data last updated August 2, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/2. 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 8/1010:54 pm
IDA
- ONT
1 stop17h 20m
Multiple Airlines
Sun 11/152:58 pm
ONT
- IDA
1 stop20h 55m
Multiple Airlines
Deal found 8/2![Multiple Airlines logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/1410:54 pm
IDA
- ONT
2 stops13h 08m
Multiple Airlines
Thu 8/2011:15 am
ONT
- IDA
1 stop22h 32m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$334
This Booking.com deal was found by Cheapflights users on 8/1. 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.
Sat 8/154:14 pm
IDA
- ONT
1 stop8h 38m
Alaska Airlines
Tue 8/182:05 pm
ONT
- IDA
1 stop7h 34m
Alaska Airlines
Deal found 8/1![Alaska Airlines logo]()
$519
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 8/157:15 am
IDA
- ONT
1 stop6h 54m
Alaska Airlines
Wed 8/193:07 pm
ONT
- IDA
1 stop6h 49m
Alaska Airlines
Deal found 7/31![Alaska Airlines logo]()
$539
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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
IDA
- ONT
1 stop5h 46m
Alaska Airlines
Sat 9/57:12 am
ONT
- IDA
1 stop5h 12m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$453
This United Airlines deal was found by Cheapflights users on 8/1. 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 8/292:25 pm
IDA
- ONT
1 stop7h 28m
United Airlines
Sat 9/51:18 pm
ONT
- IDA
1 stop7h 00m
United Airlines
Deal found 8/1![United Airlines logo]()
$476
This Delta deal was found by Cheapflights users on 8/1. 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.
Sat 8/293:17 pm
IDA
- ONT
2 stops8h 28m
Delta
Sat 9/55:05 pm
ONT
- IDA
1 stop4h 27m
Delta
Deal found 8/1![Delta logo]()
$481
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/318:33 pm
IDA
- ONT
1 stop20h 16m
Multiple Airlines
Thu 9/311:15 am
ONT
- IDA
1 stop20h 39m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$268
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 2, 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 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/286:21 pm
IDA
- ONT
1 stop15h 48m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$129
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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
IDA
- ONT
1 stop8h 07m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$217
This Priceline deal was found by Cheapflights users on 7/29. 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 9/166:18 am
IDA
- ONT
1 stop5h 58m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$227
This United Airlines deal was found by Cheapflights users on 7/31. 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
IDA
- ONT
1 stop5h 49m
United Airlines
Deal found 7/31![United Airlines logo]()
$258
This Delta deal was found by Cheapflights users on 8/1. 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 8/187:00 pm
IDA
- ONT
1 stop5h 34m
Delta
Deal found 8/1![Delta logo]()
$260
This United Airlines deal was found by Cheapflights users on 7/29. 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 10/34:05 pm
IDA
- ONT
1 stop5h 53m
United Airlines
Deal found 7/29![United Airlines logo]()
$267
This Delta deal was found by Cheapflights users on 7/30. 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 12/241:10 pm
IDA
- ONT
2 stops10h 33m
Delta
Deal found 7/30![Delta logo]()
$268
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/278:20 pm
IDA
- ONT
3 stops45h 39m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 9/283:57 pm
IDA
- ONT
1 stop18h 54m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$282
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 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $268 (Kiwi.com) |
One-way from | $129 (Kiwi.com) |
Popular in | November |
Cheapest in | April |
Average price | $458 |
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 2, 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 - ONT
IDAONT
Idaho Falls Fanning Field
Tue 10/27
3:57 pm-8:15 pm
1 stop5h 18m
Ontario
Sat 10/31
2:13 pm-10:59 pm
1 stop7h 46m
$433
Quickest round-trip
Idaho FallsOntario
IDA - ONT
IDAONT
Idaho Falls Fanning Field
Wed 9/23
2:01 pm-7:03 pm
1 stop6h 02m
Ontario
Sat 9/26
7:12 am-1:24 pm
1 stop5h 12m
$443
Idaho FallsOntario
IDA - ONT
IDAONT
Idaho Falls Fanning Field
Sat 10/17
6:09 am-5:05 pm
2 stops11h 56m
Ontario
Sat 10/24
11:13 am-10:59 pm
1 stop10h 46m
$473
Idaho FallsOntario
IDA - ONT
IDAONT
Idaho Falls Fanning Field
Thu 9/10
6:18 am-11:24 pm
1 stop18h 06m
Ontario
Tue 9/15
4:27 pm-1:24 pm
2 stops19h 57m
$473
Idaho FallsOntario
IDA - ONT
IDAONT
Idaho Falls Fanning Field
Sat 8/29
3:17 pm-10:45 pm
2 stops8h 28m
Ontario
Sat 9/5
5:05 pm-10:32 pm
1 stop4h 27m
$481
Idaho FallsOntario
IDA - ONT
IDAONT
Idaho Falls Fanning Field
Sat 8/15
7:15 am-1:09 pm
1 stop6h 54m
Ontario
Wed 8/19
3:07 pm-10:56 pm
1 stop6h 49m
$539
Idaho FallsOntario
IDA - ONT
IDAONT
Idaho Falls Fanning Field
Sat 9/12
4:04 pm-8:53 pm
1 stop5h 49m
Ontario
Sun 9/13
1:18 pm-9:18 pm
1 stop7h 00m
$563
Idaho FallsOntario
IDA - ONT
IDAONT
Idaho Falls Fanning Field
Fri 8/14
2:25 pm-8:53 pm
1 stop7h 28m
Ontario
Fri 8/21
5:00 am-1:29 pm
1 stop7h 29m
$593
Idaho FallsOntario
IDA - ONT
IDAONT
Idaho Falls Fanning Field
Thu 8/13
7:00 am-12:50 pm
1 stop6h 50m
Ontario
Thu 8/20
5:00 am-5:16 pm
1 stop11h 16m
$604
Cheapest one-way
Idaho FallsOntario
IDA - ONT
IDAONT
Idaho Falls Fanning Field
Mon 9/28
6:21 pm-9:09 am
1 stop15h 48m
$129
Showing 1-10 of 17 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 2, 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.
Crew
8.5
Entertainment
7.8
Overall
7.8
Boarding
8.1
Food
7.2
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Crew
8.5
Entertainment
7.8
Overall
7.8
Boarding
8.1
Food
7.2
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Crew
8.5
Entertainment
7.8
Overall
7.8
Boarding
8.1
Food
7.2
Comfort
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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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Complete your trip
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Other flight options
Other flights from Idaho Falls
Popular flights
Alternative routes for Idaho Falls to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Idaho Falls to Ontario by cabin class
Find flights from Idaho Falls to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 2, 2026.
Idaho Falls and Ontario flights
Browse other Idaho Falls and Ontario flight options. Last updated on August 2, 2026.
Other flights from Idaho Falls
Browse through other flights departing from Idaho Falls. Flights are based on user searches made on Cheapflights and were last updated on August 2, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$143 | Average$565 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$155 | Average$358 | FlexibilityNo cancel fee | On-timeN/A |