$211+ Cheap flights from Hilo to Ontario (ITO - 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
ITO — ONT
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from Hilo 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 Hilo to Ontario
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Cheapest flights from Hilo to OntarioExplore the most affordable flight options available from Hilo to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
Explore the most affordable flight options available from Hilo to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:20 am -
1 stop7h 09m
Wed 10/287:00 am -
1 stop10h 27m
Deal found 9/8![Multiple Airlines logo]()
$396
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/248:00 am -
1 stop12h 45m
Tue 12/89:00 am -
1 stop11h 10m
Deal found 9/9![Southwest logo]()
$401
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:45 pm -
1 stop9h 00m
Mon 10/198:00 am -
1 stop13h 15m
Deal found 9/9![Southwest logo]()
$418
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 11/211:00 am -
1 stop8h 42m
Tue 11/37:30 am -
1 stop9h 52m
Deal found 9/6![Multiple Airlines logo]()
$453
This Booking.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/912:38 pm -
2 stops18h 39m
Sun 10/187:00 am -
1 stop10h 27m
Deal found 9/10![Multiple Airlines logo]()
$456
This Alaska Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/62:52 pm -
1 stop28h 36m
Mon 12/149:00 am -
1 stop10h 49m
Deal found 9/8![Multiple Airlines logo]()
$460
Best flights from Hilo to OntarioDiscover carefully curated flight deals from Hilo to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Hilo to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:20 am -
1 stop7h 09m
Wed 10/287:00 am -
1 stop10h 27m
Deal found 9/8![Multiple Airlines logo]()
$396
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/248:00 am -
1 stop12h 45m
Tue 12/89:00 am -
1 stop11h 10m
Deal found 9/9![Southwest logo]()
$401
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:45 pm -
1 stop9h 00m
Mon 10/198:00 am -
1 stop13h 15m
Deal found 9/9![Southwest logo]()
$418
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 11/211:00 am -
1 stop8h 42m
Tue 11/37:30 am -
1 stop9h 52m
Deal found 9/6![Multiple Airlines logo]()
$453
This Alaska Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/62:52 pm -
1 stop28h 36m
Mon 12/149:00 am -
1 stop10h 49m
Deal found 9/8![Multiple Airlines logo]()
$460
This Booking.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/912:38 pm -
2 stops18h 39m
Sun 10/186:02 am -
2 stops17h 11m
Deal found 9/10![Multiple Airlines logo]()
$466
Last-minute flights from Hilo to OntarioDiscover last-minute flight deals from Hilo to Ontario. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Hilo to Ontario. Data last updated September 10, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2411:27 am -
1 stop7h 43m
Tue 10/67:00 am -
1 stop9h 06m
Deal found 9/10![Multiple Airlines logo]()
$533
This Booking.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/912:38 pm -
2 stops18h 39m
Sun 10/187:00 am -
1 stop10h 27m
Deal found 9/10![Multiple Airlines logo]()
$456
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:45 pm -
1 stop9h 00m
Mon 10/198:00 am -
1 stop13h 15m
Deal found 9/9![Southwest logo]()
$418
This Alaska Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:20 am -
1 stop7h 09m
Wed 10/287:00 am -
1 stop10h 27m
Deal found 9/8![Multiple Airlines logo]()
$396
One-way flights from Hilo to OntarioSearch for one-way flight options from Hilo to Ontario. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from Hilo to Ontario. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 9/295:58 pm -
2 stops12h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$211
This Trip.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3011:20 am -
1 stop7h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$242
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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 10/1511:20 am -
1 stop7h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$246
This Booking.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:49 pm -
1 stop23h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$253
This Booking.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:51 pm -
2 stops14h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$256
This Alaska Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:26 am -
1 stop9h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$258
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:45 pm -
2 stops10h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![American Airlines logo]()
$261
This Booking.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/118:45 pm -
1 stop21h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$265
This Alaska Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2511:20 am -
1 stop7h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$288
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/258:45 pm -
2 stops9h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![American Airlines logo]()
$295
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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 9/235:58 pm -
2 stops12h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$298
Find flight deals from Hilo to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Hilo (ITO) 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 September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $396 (Alaska Airlines) |
One-way from | $211 (Booking.com) |
Popular in | October |
Cheapest in | August |
Average price | $578 |
Cheapflights Fare Finder
Customize your flight search to find flights from Hilo 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 September 10, 2026.
Use the filters below to find and compare flights from Hilo to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HiloOntario
ITO Hilo Intl - ONT Ontario
ITOONT
Hilo Intl
Tue 9/29
7:44 pm-2:16 pm
2 stops15h 32m
Ontario
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$211
HiloOntario
ITO Hilo Intl - ONT Ontario
ITOONT
Hilo Intl
Wed 11/11
11:00 am-9:42 pm
1 stop8h 42m
Ontario
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$246
Quickest round-trip
HiloOntario
ITO Hilo Intl - ONT Ontario
ITOONT
Hilo Intl
Thu 10/15
11:20 am-9:29 pm
1 stop7h 09m
Ontario
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$246
HiloOntario
ITO Hilo Intl - ONT Ontario
ITOONT
Hilo Intl
Wed 10/7
3:53 pm-9:29 pm
1 stop26h 36m
Ontario
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$253
HiloOntario
ITO Hilo Intl - ONT Ontario
ITOONT
Hilo Intl
Thu 9/24
11:27 am-10:10 pm
1 stop7h 43m
Ontario
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$288
HiloOntario
ITO Hilo Intl - ONT Ontario
ITOONT
Hilo Intl
Sun 10/25
11:20 am-9:29 pm
1 stop7h 09m
Ontario
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$288
HiloOntario
ITO Hilo Intl - ONT Ontario
ITOONT
Hilo Intl
Wed 9/23
5:58 pm-9:51 am
2 stops12h 53m
Ontario
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$298
HiloOntario
ITO Hilo Intl - ONT Ontario
ITOONT
Hilo Intl
Fri 9/25
11:27 am-10:10 pm
1 stop7h 43m
Ontario
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$333
HiloOntario
ITO Hilo Intl - ONT Ontario
ITOONT
Hilo Intl
Sun 11/1
11:00 am-9:42 pm
1 stop8h 42m
Ontario
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$333
HiloOntario
ITO Hilo Intl - ONT Ontario
ITOONT
Hilo Intl
Fri 12/25
9:26 am-9:43 pm
1 stop10h 17m
Ontario
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$379
Showing 1-10 of 16 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Hilo-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Hilo-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Hilo-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Hilo-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 Hilo-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 Hilo to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Hilo with our price prediction graph.
ITO-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.
Related info for your journey
Find useful and relevant information for your journey from Hilo 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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