$167+ Cheap flights from Ontario to Kailua-Kona (ONT - KOA)
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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — KOA
Nov 12 — Nov 191
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Kailua-Kona 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 Ontario to Kailua-Kona
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Best
Last-minute
One-way
Cheapest flights from Ontario to Kailua-KonaExplore the most affordable flight options available from Ontario to Kailua-Kona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 13, 2026.
Explore the most affordable flight options available from Ontario to Kailua-Kona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 13, 2026.
This Kissandfly.com deal was found by Cheapflights users on 10/8. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:00 am -
1 stop10h 41m
Mon 11/168:45 pm -
1 stop23h 58m
Deal found 10/8![Multiple Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 10/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:00 am -
2 stops16h 27m
Mon 11/99:45 pm -
1 stop11h 32m
Deal found 10/8![Delta logo]()
$366
This Delta deal was found by Cheapflights users on 10/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:00 am -
1 stop10h 41m
Mon 11/169:45 pm -
1 stop11h 32m
Deal found 10/8![Delta logo]()
$414
This Alaska Airlines deal was found by Cheapflights users on 10/8. 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.
Sat 11/146:00 am -
1 stop13h 53m
Sat 11/2111:52 pm -
1 stop21h 39m
Deal found 10/8![Alaska Airlines logo]()
$422
This Booking.com deal was found by Cheapflights users on 10/8. 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 11/116:00 am -
1 stop19h 15m
Wed 11/1811:45 am -
1 stop8h 58m
Deal found 10/8![Multiple Airlines logo]()
$442
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:00 am -
1 stop10h 41m
Tue 11/179:45 pm -
1 stop11h 32m
Deal found 10/11![Delta logo]()
$450
This United Airlines deal was found by Cheapflights users on 10/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:00 am -
1 stop7h 50m
Mon 12/1411:55 pm -
1 stop7h 43m
Deal found 10/8![United Airlines logo]()
$470
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/29:00 am -
1 stop7h 35m
Mon 11/1611:40 am -
1 stop8h 30m
Deal found 10/9![Southwest logo]()
$471
This United Airlines deal was found by Cheapflights users on 10/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:00 am -
1 stop7h 49m
Thu 11/1911:59 pm -
1 stop10h 30m
Deal found 10/8![United Airlines logo]()
$476
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/266:00 am -
1 stop10h 41m
Thu 12/109:40 pm -
1 stop11h 37m
Deal found 10/12![Delta logo]()
$480
Best flights from Ontario to Kailua-KonaDiscover carefully curated flight deals from Ontario to Kailua-Kona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 13, 2026.
Discover carefully curated flight deals from Ontario to Kailua-Kona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 13, 2026.
This Delta deal was found by Cheapflights users on 10/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/186:00 am -
1 stop11h 00m
Wed 2/2410:45 pm -
1 stop13h 12m
Deal found 10/8![Delta logo]()
$340
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.
Tue 2/27:00 am -
1 stop12h 22m
Tue 2/98:45 pm -
1 stop22h 33m
Deal found 10/10![Multiple Airlines logo]()
$447
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/29:00 am -
1 stop7h 35m
Mon 11/1611:40 am -
1 stop8h 30m
Deal found 10/9![Southwest logo]()
$471
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 11/106:00 am -
1 stop7h 49m
Fri 11/2011:59 pm -
1 stop10h 30m
Deal found 10/9![United Airlines logo]()
$580
This Delta deal was found by Cheapflights users on 10/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/186:00 am -
1 stop11h 00m
Mon 2/2210:45 pm -
1 stop13h 12m
Deal found 10/8![Delta logo]()
$414
This Delta deal was found by Cheapflights users on 10/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/186:00 am -
1 stop11h 00m
Tue 2/2310:45 pm -
2 stops15h 27m
Deal found 10/8![Delta logo]()
$444
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:20 am -
1 stop14h 18m
Wed 11/189:45 pm -
1 stop11h 32m
Deal found 10/12![Delta logo]()
$480
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/298:00 am -
1 stop9h 15m
Sun 11/111:40 am -
1 stop8h 30m
Deal found 10/12![Southwest logo]()
$587
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:40 am -
1 stop10h 00m
Sat 10/316:00 am -
1 stop11h 30m
Deal found 10/12![Southwest logo]()
$592
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.
Mon 11/96:00 am -
1 stop10h 41m
Mon 11/169:45 pm -
1 stop11h 32m
Deal found 10/9![Delta logo]()
$491
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:20 am -
1 stop14h 18m
Fri 11/610:05 pm -
2 stops16h 18m
Deal found 10/11![Delta logo]()
$533
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:20 am -
1 stop14h 18m
Sat 11/710:05 pm -
1 stop11h 11m
Deal found 10/11![Delta logo]()
$586
Last-minute flights from Ontario to Kailua-KonaDiscover last-minute flight deals from Ontario to Kailua-Kona. Data last updated October 13, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Kailua-Kona. Data last updated October 13, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:00 am -
2 stops16h 27m
Mon 11/99:45 pm -
1 stop11h 32m
Deal found 10/8![Delta logo]()
$366
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/29:00 am -
1 stop7h 35m
Mon 11/1611:40 am -
1 stop8h 30m
Deal found 10/9![Southwest logo]()
$471
This Kissandfly.com deal was found by Cheapflights users on 10/8. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:00 am -
1 stop10h 41m
Mon 11/168:45 pm -
1 stop23h 58m
Deal found 10/8![Multiple Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 10/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:00 am -
1 stop10h 41m
Mon 11/169:45 pm -
1 stop11h 32m
Deal found 10/8![Delta logo]()
$414
This United Airlines deal was found by Cheapflights users on 10/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:00 am -
1 stop7h 49m
Thu 11/1911:59 pm -
1 stop10h 30m
Deal found 10/8![United Airlines logo]()
$476
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:00 am -
1 stop10h 41m
Tue 11/179:45 pm -
1 stop11h 32m
Deal found 10/11![Delta logo]()
$450
This Booking.com deal was found by Cheapflights users on 10/8. 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 11/116:00 am -
1 stop19h 15m
Wed 11/1811:45 am -
1 stop8h 58m
Deal found 10/8![Multiple Airlines logo]()
$442
This Alaska Airlines deal was found by Cheapflights users on 10/8. 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.
Sat 11/146:00 am -
1 stop13h 53m
Sat 11/2111:52 pm -
1 stop21h 39m
Deal found 10/8![Alaska Airlines logo]()
$422
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/266:00 am -
1 stop10h 41m
Tue 12/89:40 pm -
1 stop11h 37m
Deal found 10/12![Delta logo]()
$480
One-way flights from Ontario to Kailua-KonaSearch for one-way flight options from Ontario to Kailua-Kona. Find affordable one-way fares based on user searches. Data last updated October 13, 2026.
Search for one-way flight options from Ontario to Kailua-Kona. Find affordable one-way fares based on user searches. Data last updated October 13, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/8. 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 1/1211:36 am -
1 stop12h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Alaska Airlines logo]()
$167
This United Airlines deal was found by Cheapflights users on 10/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/316:00 am -
1 stop8h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![United Airlines logo]()
$173
This Delta deal was found by Cheapflights users on 10/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:20 am -
1 stop14h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Delta logo]()
$191
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.
Tue 11/107:00 am -
1 stop14h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Delta logo]()
$225
This United Airlines deal was found by Cheapflights users on 10/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/97:25 am -
1 stop8h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![United Airlines logo]()
$232
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/136:00 am -
2 stops15h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Delta logo]()
$236
This United Airlines deal was found by Cheapflights users on 10/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/151:35 pm -
1 stop8h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![United Airlines logo]()
$238
This American Airlines deal was found by Cheapflights users on 10/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:15 am -
1 stop10h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![American Airlines logo]()
$241
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.
Wed 11/116:30 am -
1 stop10h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![American Airlines logo]()
$248
This United Airlines deal was found by Cheapflights users on 10/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/31:35 pm -
1 stop8h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![United Airlines logo]()
$249
Find flight deals from Ontario to Kailua-Kona
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Kailua-Kona (KOA). 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 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $330 (Alaska Airlines) |
One-way from | $167 (Alaska Airlines) |
Popular in | December |
Cheapest in | January |
Average price | $479 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Kailua-Kona 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 13, 2026.
Use the filters below to find and compare flights from Ontario to Kailua-Kona that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
OntarioKailua-Kona
ONT Ontario - KOA Kona Intl
ONTKOA
Ontario
Thu 12/31
6:00 am-12:01 pm
1 stop8h 01m
Kona Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$173
OntarioKailua-Kona
ONT Ontario - KOA Kona Intl
ONTKOA
Ontario
Tue 12/15
7:00 am-7:55 pm
1 stop14h 55m
Kona Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$225
OntarioKailua-Kona
ONT Ontario - KOA Kona Intl
ONTKOA
Ontario
Mon 11/9
6:00 am-2:41 pm
1 stop10h 41m
Kona Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$225
OntarioKailua-Kona
ONT Ontario - KOA Kona Intl
ONTKOA
Ontario
Wed 12/9
11:57 am-7:55 pm
1 stop9h 58m
Kona Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$225
OntarioKailua-Kona
ONT Ontario - KOA Kona Intl
ONTKOA
Ontario
Mon 12/7
11:57 am-7:55 pm
1 stop9h 58m
Kona Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$225
OntarioKailua-Kona
ONT Ontario - KOA Kona Intl
ONTKOA
Ontario
Wed 11/11
6:00 am-7:25 pm
2 stops15h 25m
Kona Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$231
OntarioKailua-Kona
ONT Ontario - KOA Kona Intl
ONTKOA
Ontario
Tue 11/10
6:00 am-7:25 pm
2 stops15h 25m
Kona Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$231
OntarioKailua-Kona
ONT Ontario - KOA Kona Intl
ONTKOA
Ontario
Mon 12/14
6:00 am-7:55 pm
2 stops15h 55m
Kona Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$236
OntarioKailua-Kona
ONT Ontario - KOA Kona Intl
ONTKOA
Ontario
Sun 12/13
6:00 am-7:55 pm
2 stops15h 55m
Kona Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$236
OntarioKailua-Kona
ONT Ontario - KOA Kona Intl
ONTKOA
Ontario
Sun 11/15
1:35 pm-8:32 pm
1 stop8h 57m
Kona Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$238
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Ontario to Kailua-Kona
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 Ontario to Kailua-Kona 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 Ontario-Kailua-Kona flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Kailua-Kona flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Kailua-Kona flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Kailua-Kona 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 Ontario-Kailua-Kona 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 Ontario to Kailua-Kona
Have a flexible travel schedule? Discover the best time to fly to Kailua-Kona from Ontario with our price prediction graph.
ONT-KOA
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 Ontario to Kailua-Kona
Reviews of airlines servicing Kailua-Kona
Get insights into the airlines that provide service to Kailua-Kona. 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 Kailua-Kona. Reviews last updated October 13, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines,Southwest, andDelta from Ontario to Kailua-Kona 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
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
Food
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
Food
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
Food
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
Food
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
Food
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Related info for your journey
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Top 4 airlines flying from Ontario to Kailua-Kona
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$296 | Average$574 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$317 | Average$524 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$335 | Average$464 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$379 | Average$511 | FlexibilityNo cancel fee | On-time63% |