$118+ Cheap flights from Idaho Falls to Ontario (IDA - ONT)
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 — ONT
Oct 31 — Nov 71
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 October 1, 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 October 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/26. 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 12/134:05 pm -
1 stop20h 46m
Sun 1/106:27 pm -
1 stop17h 20m
Deal found 9/26![Multiple Airlines logo]()
$331
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:28 pm -
1 stop13h 41m
Sun 10/258:35 pm -
1 stop15h 01m
Deal found 10/1![Multiple Airlines logo]()
$430
This Alaska Airlines deal was found by Cheapflights users on 9/30. 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.
Sat 11/71:53 pm -
1 stop5h 24m
Wed 11/114:09 pm -
1 stop5h 45m
Deal found 9/30![Alaska Airlines logo]()
$453
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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 11/26:04 am -
1 stop6h 14m
Wed 11/44:09 pm -
1 stop5h 45m
Deal found 9/27![Alaska Airlines logo]()
$489
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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 11/26:04 am -
1 stop6h 14m
Thu 11/54:09 pm -
1 stop5h 45m
Deal found 9/27![Alaska Airlines logo]()
$525
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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.
Tue 10/133:57 pm -
1 stop5h 18m
Sat 10/172:13 pm -
1 stop7h 46m
Deal found 9/28![Alaska Airlines logo]()
$539
This Delta deal was found by Cheapflights users on 9/30. 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.
Fri 10/236:56 pm -
1 stop5h 59m
Fri 10/305:03 pm -
1 stop4h 07m
Deal found 9/30![Delta logo]()
$545
This Gotogate deal was found by Cheapflights users on 9/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:53 pm -
1 stop5h 24m
Mon 11/164:04 pm -
2 stops22h 14m
Deal found 9/30![Alaska Airlines logo]()
$552
This United Airlines deal was found by Cheapflights users on 9/26. 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.
Tue 11/34:30 pm -
1 stop5h 21m
Tue 11/105:00 am -
1 stop7h 28m
Deal found 9/26![United Airlines logo]()
$553
This United Airlines deal was found by Cheapflights users on 9/26. 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 11/222:35 pm -
1 stop7h 16m
Wed 11/255:00 am -
1 stop7h 28m
Deal found 9/26![United Airlines logo]()
$559
This Priceline deal was found by Cheapflights users on 9/29. 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.
Thu 11/56:04 am -
1 stop10h 09m
Sat 11/76:00 am -
1 stop8h 18m
Deal found 9/29![Alaska Airlines logo]()
$563
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 October 1, 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 October 1, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/30. 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.
Sat 11/71:53 pm -
1 stop5h 24m
Wed 11/114:09 pm -
1 stop5h 45m
Deal found 9/30![Alaska Airlines logo]()
$453
This United Airlines deal was found by Cheapflights users on 9/29. 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 1/217:00 am -
1 stop6h 33m
Fri 1/295:00 am -
1 stop7h 35m
Deal found 9/29![United Airlines logo]()
$565
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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 1/239:08 am -
1 stop7h 12m
Wed 1/277:00 am -
1 stop7h 21m
Deal found 9/28![Alaska Airlines logo]()
$453
This United Airlines deal was found by Cheapflights users on 9/26. 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 10/174:05 pm -
1 stop5h 53m
Sun 10/185:00 am -
1 stop7h 24m
Deal found 9/26![United Airlines logo]()
$565
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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 11/26:04 am -
1 stop6h 14m
Thu 11/54:09 pm -
1 stop5h 45m
Deal found 9/27![Alaska Airlines logo]()
$525
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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 10/176:09 am -
1 stop8h 07m
Sun 10/186:02 am -
1 stop8h 18m
Deal found 9/27![Alaska Airlines logo]()
$586
Last-minute flights from Idaho Falls to OntarioDiscover last-minute flight deals from Idaho Falls to Ontario. Data last updated October 1, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho Falls to Ontario. Data last updated October 1, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/302:28 pm -
1 stop7h 30m
Thu 10/15:00 am -
1 stop7h 24m
Deal found 9/30![United Airlines logo]()
$633
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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.
Tue 10/133:57 pm -
1 stop5h 18m
Sat 10/172:13 pm -
1 stop7h 46m
Deal found 9/28![Alaska Airlines logo]()
$539
This Alaska Airlines deal was found by Cheapflights users on 9/29. 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.
Wed 10/146:09 am -
1 stop8h 07m
Sun 10/186:02 am -
1 stop8h 18m
Deal found 9/29![Alaska Airlines logo]()
$634
This United Airlines deal was found by Cheapflights users on 9/26. 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 10/174:05 pm -
1 stop5h 53m
Sun 10/185:00 am -
1 stop7h 24m
Deal found 9/26![United Airlines logo]()
$565
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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 10/206:09 am -
1 stop8h 07m
Thu 10/227:25 am -
1 stop4h 56m
Deal found 9/27![Alaska Airlines logo]()
$586
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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 10/213:57 pm -
1 stop5h 18m
Mon 10/265:45 pm -
2 stops18h 36m
Deal found 9/28![Alaska Airlines logo]()
$593
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:28 pm -
1 stop13h 41m
Sun 10/258:35 pm -
1 stop15h 01m
Deal found 10/1![Multiple Airlines logo]()
$430
This Delta deal was found by Cheapflights users on 9/30. 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.
Fri 10/236:56 pm -
1 stop5h 59m
Fri 10/305:03 pm -
1 stop4h 07m
Deal found 9/30![Delta logo]()
$545
This Expedia deal was found by Cheapflights users on 9/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:09 am -
2 stops11h 56m
Fri 10/305:45 pm -
2 stops18h 36m
Deal found 9/30![Alaska Airlines logo]()
$636
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 October 1, 2026.
Search for one-way flight options from Idaho Falls to Ontario. Find affordable one-way fares based on user searches. Data last updated October 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/28. 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.
Mon 10/267:30 pm -
1 stop15h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$118
This Kiwi.com deal was found by Cheapflights users on 9/28. 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.
Mon 11/303:32 pm -
1 stop27h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 9/28. 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.
Thu 12/34:05 pm -
2 stops32h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 11/277:06 pm -
1 stop13h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 9/28. 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.
Sun 11/296:37 pm -
1 stop21h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 10/238:28 pm -
1 stop21h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$213
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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 10/283:57 pm -
1 stop5h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Alaska Airlines logo]()
$227
This Kiwi.com deal was found by Cheapflights users on 9/28. 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.
Mon 11/2310:25 pm -
1 stop11h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$236
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 October 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $331 (Kiwi.com) |
One-way from | $118 (Kiwi.com) |
Popular in | November |
Cheapest in | February |
Average price | $514 |
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 7,457,451 searches. Data last updated October 1, 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
Thu 12/31
1:52 pm-8:03 pm
1 stop7h 11m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$263
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Tue 12/1
4:10 pm-9:11 pm
1 stop6h 01m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$277
Quickest round-trip
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Fri 10/23
4:05 pm-8:58 pm
1 stop5h 53m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$283
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Wed 12/2
6:59 pm-10:59 pm
2 stops29h 00m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$338
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Thu 12/10
3:44 pm-11:13 am
2 stops20h 29m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$378
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Sat 10/24
10:35 am-10:51 pm
2 stops13h 16m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$379
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Wed 12/9
1:54 pm-11:54 pm
2 stops11h 00m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$383
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Wed 12/23
3:55 pm-11:10 am
2 stops20h 15m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$453
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Sat 11/7
1:53 pm-6:17 pm
1 stop5h 24m
Ontario
Wed 11/11
4:09 pm-10:54 pm
1 stop5h 45m
$453
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Sat 1/23
9:08 am-3:20 pm
1 stop7h 12m
Ontario
Wed 1/27
7:00 am-3:21 pm
1 stop7h 21m
$453
Showing 1-10 of 16 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 October.
| 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.
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 October 1, 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
Crew
8.5
Entertainment
7.8
Food
7.2
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Overall
7.8
Crew
8.5
Entertainment
7.8
Food
7.2
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Overall
7.8
Crew
8.5
Entertainment
7.8
Food
7.2
Boarding
8.1
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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Alternative routes for Idaho Falls to Ontario
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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 October 1, 2026.
Idaho Falls and Ontario flights
Browse other Idaho Falls and Ontario flight options. Last updated on October 1, 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 October 1, 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 7,457,451 searches. Data last updated October 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$121 | Average$386 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$143 | Average$565 | FlexibilityNo cancel fee | On-time69% |