$263+ 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 11/26. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — ONT
Nov 13 — Nov 201
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 14, 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 14, 2026.
This Priceline deal was found by Cheapflights users on 10/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:53 pm -
1 stop5h 24m
Sat 11/146:00 am -
1 stop8h 18m
Deal found 10/11![Alaska Airlines logo]()
$453
This Priceline deal was found by Cheapflights users on 10/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/121:53 pm -
1 stop10h 13m
Sat 11/146:00 am -
1 stop8h 18m
Deal found 10/11![Alaska Airlines logo]()
$478
This American Airlines deal was found by Cheapflights users on 10/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:36 am -
1 stop7h 06m
Sat 11/144:51 pm -
1 stop5h 08m
Deal found 10/11![American Airlines logo]()
$489
This Alaska Airlines deal was found by Cheapflights users on 10/13. 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.
Tue 11/101:53 pm -
1 stop5h 24m
Tue 11/176:00 am -
1 stop8h 18m
Deal found 10/13![Alaska Airlines logo]()
$493
This Alaska Airlines deal was found by Cheapflights users on 10/13. 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.
Wed 11/111:53 pm -
1 stop5h 24m
Wed 11/184:09 pm -
1 stop5h 45m
Deal found 10/13![Alaska Airlines logo]()
$516
This Alaska Airlines deal was found by Cheapflights users on 10/10. 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.
Wed 10/146:09 am -
1 stop8h 07m
Sat 10/176:02 am -
1 stop8h 18m
Deal found 10/10![Alaska Airlines logo]()
$539
This Kiwi.com deal was found by Cheapflights users on 10/11. 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 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 05m
Sat 11/2810:47 pm -
1 stop11h 59m
Deal found 10/11![Multiple Airlines logo]()
$552
This Gotogate deal was found by Cheapflights users on 10/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/171:53 pm -
1 stop5h 24m
Thu 11/1912:02 pm -
1 stop9h 52m
Deal found 10/14![Alaska Airlines logo]()
$553
This Alaska Airlines deal was found by Cheapflights users on 10/13. 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 11/136:04 am -
1 stop6h 14m
Wed 11/186:00 am -
1 stop8h 18m
Deal found 10/13![Alaska Airlines logo]()
$558
This Gotogate deal was found by Cheapflights users on 10/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:04 am -
1 stop6h 14m
Thu 11/124:09 pm -
2 stops20h 07m
Deal found 10/14![Alaska Airlines logo]()
$572
This Gotogate deal was found by Cheapflights users on 10/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:04 am -
1 stop6h 14m
Thu 11/124:09 pm -
2 stops20h 07m
Deal found 10/14![Alaska Airlines logo]()
$573
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 14, 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 14, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/10. 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.
Sat 1/233:58 pm -
1 stop5h 04m
Wed 1/277:00 am -
1 stop7h 21m
Deal found 10/10![Alaska Airlines logo]()
$453
This United Airlines deal was found by Cheapflights users on 10/11. 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.
Tue 12/154:10 pm -
1 stop6h 01m
Wed 12/165:00 am -
1 stop7h 37m
Deal found 10/11![United Airlines logo]()
$453
This Alaska Airlines deal was found by Cheapflights users on 10/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/133:58 pm -
1 stop5h 04m
Thu 1/147:10 am -
1 stop5h 09m
Deal found 10/9![Alaska Airlines logo]()
$489
This Alaska Airlines deal was found by Cheapflights users on 10/13. 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.
Wed 11/111:53 pm -
1 stop5h 24m
Wed 11/184:09 pm -
1 stop5h 45m
Deal found 10/13![Alaska Airlines logo]()
$516
This Alaska Airlines deal was found by Cheapflights users on 10/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/123:58 pm -
1 stop5h 04m
Wed 1/1310:56 am -
2 stops10h 57m
Deal found 10/9![Alaska Airlines logo]()
$528
This Alaska Airlines deal was found by Cheapflights users on 10/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/243:57 pm -
1 stop5h 18m
Wed 10/286:02 am -
1 stop8h 18m
Deal found 10/9![Alaska Airlines logo]()
$539
This Gotogate deal was found by Cheapflights users on 10/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/171:53 pm -
1 stop5h 24m
Thu 11/1912:02 pm -
1 stop9h 52m
Deal found 10/14![Alaska Airlines logo]()
$553
Last-minute flights from Idaho Falls to OntarioDiscover last-minute flight deals from Idaho Falls to Ontario. Data last updated October 14, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho Falls to Ontario. Data last updated October 14, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 10/10. 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.
Wed 10/146:09 am -
1 stop8h 07m
Sat 10/176:02 am -
1 stop8h 18m
Deal found 10/10![Alaska Airlines logo]()
$539
This Alaska Airlines deal was found by Cheapflights users on 10/13. 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.
Tue 11/101:53 pm -
1 stop5h 24m
Tue 11/176:00 am -
1 stop8h 18m
Deal found 10/13![Alaska Airlines logo]()
$493
This Gotogate deal was found by Cheapflights users on 10/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:04 am -
1 stop6h 14m
Thu 11/124:09 pm -
2 stops20h 07m
Deal found 10/14![Alaska Airlines logo]()
$572
This Priceline deal was found by Cheapflights users on 10/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:53 pm -
1 stop5h 24m
Sat 11/146:00 am -
1 stop8h 18m
Deal found 10/11![Alaska Airlines logo]()
$453
This Alaska Airlines deal was found by Cheapflights users on 10/13. 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.
Wed 11/111:53 pm -
1 stop5h 24m
Wed 11/184:09 pm -
1 stop5h 45m
Deal found 10/13![Alaska Airlines logo]()
$516
This Gotogate deal was found by Cheapflights users on 10/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:04 am -
1 stop6h 14m
Thu 11/124:09 pm -
2 stops20h 07m
Deal found 10/14![Alaska Airlines logo]()
$573
This Priceline deal was found by Cheapflights users on 10/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/121:53 pm -
1 stop10h 13m
Sat 11/146:00 am -
1 stop8h 18m
Deal found 10/11![Alaska Airlines logo]()
$478
This American Airlines deal was found by Cheapflights users on 10/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:36 am -
1 stop7h 06m
Sat 11/144:51 pm -
1 stop5h 08m
Deal found 10/11![American Airlines logo]()
$489
This Alaska Airlines deal was found by Cheapflights users on 10/13. 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 11/136:04 am -
1 stop6h 14m
Wed 11/186:00 am -
1 stop8h 18m
Deal found 10/13![Alaska Airlines logo]()
$558
This Gotogate deal was found by Cheapflights users on 10/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/171:53 pm -
1 stop5h 24m
Thu 11/1912:02 pm -
1 stop9h 52m
Deal found 10/14![Alaska Airlines logo]()
$553
This Kiwi.com deal was found by Cheapflights users on 10/11. 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 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 05m
Sat 11/2810:47 pm -
1 stop11h 59m
Deal found 10/11![Multiple Airlines logo]()
$552
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 14, 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 14, 2026.
This Delta deal was found by Cheapflights users on 10/9. 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.
Thu 11/261:11 pm -
1 stop6h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Delta logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 10/12. 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.
Thu 12/34:05 pm -
2 stops32h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Multiple Airlines logo]()
$273
This Delta deal was found by Cheapflights users on 10/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/111:10 pm -
2 stops10h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Delta logo]()
$278
This Delta deal was found by Cheapflights users on 10/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:57 pm -
1 stop5h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Delta logo]()
$283
This Gotogate deal was found by Cheapflights users on 10/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/63:44 pm -
2 stops26h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Alaska Airlines logo]()
$325
This American Airlines deal was found by Cheapflights users on 10/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/268:00 am -
2 stops10h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![American Airlines logo]()
$340
This United Airlines deal was found by Cheapflights users on 10/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/242:35 pm -
1 stop7h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![United Airlines logo]()
$356
This Alaska Airlines deal was found by Cheapflights users on 10/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/223:46 pm -
2 stops29h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Alaska Airlines logo]()
$358
This Priceline deal was found by Cheapflights users on 10/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/103:44 pm -
2 stops8h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Alaska Airlines logo]()
$377
This Alaska Airlines deal was found by Cheapflights users on 10/13. 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.
Mon 12/143:44 pm -
2 stops8h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Alaska Airlines logo]()
$382
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 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $453 (Alaska Airlines) |
One-way from | $263 (Delta) |
Popular in | October |
Cheapest in | February |
Average price | $738 |
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 14, 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 12/3
6:59 pm-11:57 pm
1 stop5h 58m
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
Mon 12/14
6:59 pm-11:57 pm
1 stop5h 58m
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
Sun 11/22
6:57 pm-11:49 pm
1 stop5h 52m
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
Thu 12/3
4:05 pm-11:19 pm
2 stops32h 14m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$273
Quickest round-trip
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Mon 1/11
1:10 pm-4:12 pm
1 stop4h 02m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$273
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Sun 12/6
6:59 pm-11:57 pm
1 stop5h 58m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$273
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Mon 11/23
6:44 am-12:45 pm
1 stop7h 01m
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
Mon 11/9
1:11 pm-11:00 pm
2 stops10h 49m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$355
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Tue 11/24
2:35 pm-8:51 pm
1 stop7h 16m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$356
Idaho FallsOntario
IDA Idaho Falls Fanning Field - ONT Ontario
IDAONT
Idaho Falls Fanning Field
Mon 12/14
3:44 pm-10:59 pm
2 stops8h 15m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$382
Showing 1-10 of 18 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 Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | 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 14, 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.
Food
7.2
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Overall
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.2
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Overall
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.2
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Overall
7.8
Crew
8.5
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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Complete your trip
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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 October 14, 2026.
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Browse through other flights departing from Idaho Falls. Flights are based on user searches made on Cheapflights and were last updated on October 14, 2026.
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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 7,457,451 searches. Data last updated October 14, 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% |