$136+ Cheap flights from Hawaii to Ontario (ONT)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
HNL — ONT
May 2 — May 91
Round-trip
1 adult, Economy
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Find cheap flights from Hawaii 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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Cheapest flights from Hawaii to OntarioExplore the most affordable flight options available from Hawaii to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2026.
Explore the most affordable flight options available from Hawaii to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2026.
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:35 pm
HNL
- ONT
1 stop10h 18m
Delta
Sun 5/1011:52 am
ONT
- HNL
1 stop10h 56m
Delta
Deal found 4/1![Delta logo]()
$290
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/188:50 pm
KOA
- ONT
1 stop12h 45m
Delta
Thu 5/286:45 am
ONT
- KOA
1 stop13h 52m
Delta
Deal found 3/31![Delta logo]()
$306
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/198:50 pm
KOA
- ONT
2 stops16h 27m
Delta
Thu 5/286:45 am
ONT
- KOA
1 stop13h 52m
Delta
Deal found 3/31![Delta logo]()
$312
This American Airlines deal was found by Cheapflights users on 4/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2310:16 pm
HNL
- ONT
1 stop10h 18m
American Airlines
Wed 4/2912:19 pm
ONT
- HNL
1 stop8h 46m
American Airlines
Deal found 4/1![American Airlines logo]()
$320
This United Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/79:30 pm
HNL
- ONT
1 stop9h 11m
United Airlines
Mon 5/111:30 pm
ONT
- HNL
1 stop9h 04m
United Airlines
Deal found 4/1![United Airlines logo]()
$332
This United Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/69:40 pm
HNL
- ONT
2 stops11h 42m
United Airlines
Sun 5/106:00 am
ONT
- HNL
1 stop8h 58m
United Airlines
Deal found 4/1![United Airlines logo]()
$338
This American Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/69:00 pm
HNL
- ONT
1 stop8h 39m
American Airlines
Sun 5/109:24 am
ONT
- HNL
1 stop11h 41m
American Airlines
Deal found 3/31![American Airlines logo]()
$340
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2310:45 pm
HNL
- ONT
1 stop15h 30m
Delta
Fri 5/111:53 am
ONT
- HNL
1 stop12h 27m
Delta
Deal found 4/1![Delta logo]()
$352
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2310:45 pm
HNL
- ONT
1 stop15h 30m
Delta
Thu 4/3011:53 am
ONT
- HNL
1 stop12h 27m
Delta
Deal found 4/1![Delta logo]()
$354
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2210:45 pm
HNL
- ONT
1 stop20h 52m
Delta
Fri 5/111:53 am
ONT
- HNL
1 stop12h 27m
Delta
Deal found 4/1![Delta logo]()
$356
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/228:50 pm
KOA
- ONT
1 stop11h 22m
Delta
Thu 5/286:45 am
ONT
- KOA
1 stop13h 52m
Delta
Deal found 3/31![Delta logo]()
$356
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2210:45 pm
HNL
- ONT
1 stop20h 52m
Delta
Wed 4/292:20 pm
ONT
- HNL
1 stop10h 00m
Delta
Deal found 4/1![Delta logo]()
$358
Best flights from Hawaii to OntarioDiscover carefully curated flight deals from Hawaii to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 2, 2026.
Discover carefully curated flight deals from Hawaii to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 2, 2026.
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/198:50 pm
KOA
- ONT
2 stops16h 27m
Delta
Thu 5/286:45 am
ONT
- KOA
1 stop13h 52m
Delta
Deal found 3/31![Delta logo]()
$312
This Alaska Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1012:35 pm
HNL
- ONT
Nonstop5h 35m
Alaska Airlines
Wed 5/209:40 am
ONT
- HNL
Nonstop6h 01m
Alaska Airlines
Deal found 3/31![Alaska Airlines logo]()
$401
This Southwest deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/308:05 am
KOA
- ONT
2 stops10h 55m
Southwest
Thu 5/77:00 am
ONT
- KOA
1 stop8h 15m
Southwest
Deal found 3/31![Southwest logo]()
$404
This United Airlines deal was found by Cheapflights users on 3/29. 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.
Wed 9/210:50 pm
KOA
- ONT
1 stop10h 22m
United Airlines
Mon 9/78:00 am
ONT
- KOA
1 stop7h 50m
United Airlines
Deal found 3/29![United Airlines logo]()
$406
This Alaska Airlines deal was found by Cheapflights users on 3/30. 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.
Tue 5/510:10 am
OGG
- ONT
1 stop8h 00m
Multiple Airlines
Wed 5/63:24 pm
ONT
- OGG
1 stop9h 56m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$421
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/188:50 pm
KOA
- ONT
1 stop12h 45m
Delta
Fri 5/296:45 am
ONT
- KOA
1 stop13h 52m
Delta
Deal found 3/31![Delta logo]()
$415
This Alaska Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1412:43 pm
HNL
- ONT
Nonstop5h 37m
Alaska Airlines
Mon 9/217:20 am
ONT
- HNL
Nonstop6h 02m
Alaska Airlines
Deal found 4/1![Alaska Airlines logo]()
$425
This Southwest deal was found by Cheapflights users on 3/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/128:10 am
HNL
- ONT
2 stops11h 05m
Southwest
Tue 5/195:55 am
ONT
- HNL
1 stop13h 10m
Southwest
Deal found 3/28![Southwest logo]()
$458
This Delta deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/238:50 pm
KOA
- ONT
1 stop13h 49m
Delta
Mon 5/47:00 am
ONT
- KOA
1 stop15h 03m
Delta
Deal found 3/30![Delta logo]()
$417
This Alaska Airlines deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2512:35 pm
HNL
- ONT
Nonstop5h 35m
Multiple Airlines
Tue 4/286:00 am
ONT
- HNL
1 stop10h 13m
Multiple Airlines
Deal found 4/2![Multiple Airlines logo]()
$463
This United Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:04 pm
KOA
- ONT
1 stop20h 55m
United Airlines
Mon 5/41:30 pm
ONT
- KOA
1 stop9h 20m
United Airlines
Deal found 4/1![United Airlines logo]()
$479
This Alaska Airlines deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2312:35 pm
HNL
- ONT
Nonstop5h 35m
Alaska Airlines
Sat 4/258:30 am
ONT
- HNL
Nonstop6h 05m
Alaska Airlines
Deal found 4/2![Alaska Airlines logo]()
$437
This Alaska Airlines deal was found by Cheapflights users on 3/28. 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.
Thu 7/309:19 pm
KOA
- ONT
1 stop10h 55m
Multiple Airlines
Sun 8/169:11 am
ONT
- KOA
1 stop14h 16m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$469
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/208:50 pm
KOA
- ONT
2 stops12h 29m
Delta
Sun 5/2411:52 am
ONT
- KOA
1 stop32h 45m
Delta
Deal found 3/31![Delta logo]()
$434
This Alaska Airlines deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2512:35 pm
HNL
- ONT
Nonstop5h 35m
Alaska Airlines
Wed 4/293:26 pm
ONT
- HNL
1 stop10h 03m
Alaska Airlines
Deal found 4/2![Alaska Airlines logo]()
$440
This United Airlines deal was found by Cheapflights users on 3/29. 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.
Mon 4/2010:05 pm
HNL
- ONT
1 stop8h 51m
United Airlines
Mon 4/2711:05 am
ONT
- HNL
1 stop8h 25m
United Airlines
Deal found 3/29![United Airlines logo]()
$485
This Delta deal was found by Cheapflights users on 3/30. 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.
Wed 4/228:50 pm
KOA
- ONT
1 stop11h 23m
Delta
Tue 5/57:00 am
ONT
- KOA
1 stop15h 03m
Delta
Deal found 3/30![Delta logo]()
$447
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Mon 4/2010:48 pm
KOA
- ONT
1 stop8h 08m
United Airlines
Mon 4/276:00 am
ONT
- KOA
1 stop9h 45m
United Airlines
Deal found 3/30![United Airlines logo]()
$498
This Alaska Airlines deal was found by Cheapflights users on 3/29. 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.
Tue 5/58:00 am
OGG
- ONT
1 stop11h 32m
Alaska Airlines
Wed 5/63:24 pm
ONT
- OGG
1 stop9h 56m
Alaska Airlines
Deal found 3/29![Alaska Airlines logo]()
$453
This Alaska Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:59 am
ITO
- ONT
2 stops10h 49m
Multiple Airlines
Wed 4/296:00 am
ONT
- ITO
2 stops14h 39m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$514
This United Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2310:48 pm
KOA
- ONT
1 stop10h 32m
United Airlines
Mon 4/271:27 pm
ONT
- KOA
1 stop9h 15m
United Airlines
Deal found 3/28![United Airlines logo]()
$500
This CheapOair deal was found by Cheapflights users on 4/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:34 pm
OGG
- ONT
1 stop17h 30m
Alaska Airlines
Mon 9/77:57 pm
ONT
- OGG
1 stop19h 02m
Alaska Airlines
Deal found 4/1![Alaska Airlines logo]()
$456
This Delta deal was found by Cheapflights users on 3/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/139:55 pm
LIH
- ONT
1 stop10h 17m
Delta
Tue 5/196:45 am
ONT
- LIH
1 stop15h 21m
Delta
Deal found 3/29![Delta logo]()
$487
This Alaska Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1312:00 pm
LIH
- ONT
1 stop7h 17m
Multiple Airlines
Sun 5/179:40 am
ONT
- LIH
1 stop15h 12m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$546
This United Airlines deal was found by Cheapflights users on 3/29. 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.
Sun 4/1910:40 pm
OGG
- ONT
1 stop8h 16m
United Airlines
Mon 4/271:27 pm
ONT
- OGG
1 stop8h 55m
United Airlines
Deal found 3/29![United Airlines logo]()
$503
This Alaska Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/151:41 pm
HNL
- ONT
Nonstop5h 36m
Alaska Airlines
Mon 5/189:40 am
ONT
- HNL
Nonstop6h 01m
Alaska Airlines
Deal found 4/1![Alaska Airlines logo]()
$464
This Delta deal was found by Cheapflights users on 3/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/159:55 pm
LIH
- ONT
2 stops15h 22m
Delta
Mon 5/1811:52 am
ONT
- LIH
1 stop10h 14m
Delta
Deal found 3/29![Delta logo]()
$497
This Alaska Airlines deal was found by Cheapflights users on 3/30. 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.
Thu 4/308:33 am
KOA
- ONT
1 stop9h 37m
Multiple Airlines
Mon 5/410:39 am
ONT
- KOA
1 stop12h 13m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$552
This Alaska Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/112:35 pm
HNL
- ONT
Nonstop5h 35m
Alaska Airlines
Wed 5/68:30 am
ONT
- HNL
Nonstop6h 05m
Alaska Airlines
Deal found 3/31![Alaska Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1610:05 pm
HNL
- ONT
1 stop8h 51m
United Airlines
Tue 4/216:00 am
ONT
- HNL
1 stop8h 48m
United Airlines
Deal found 4/1![United Airlines logo]()
$526
Last-minute flights from Hawaii to OntarioDiscover last-minute flight deals from Hawaii to Ontario. Data last updated April 2, 2026 and is based on user searches.
Discover last-minute flight deals from Hawaii to Ontario. Data last updated April 2, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2210:45 pm
HNL
- ONT
1 stop20h 52m
Delta
Fri 5/111:53 am
ONT
- HNL
1 stop12h 27m
Delta
Deal found 4/1![Delta logo]()
$356
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2210:45 pm
HNL
- ONT
1 stop20h 52m
Delta
Wed 4/292:20 pm
ONT
- HNL
1 stop10h 00m
Delta
Deal found 4/1![Delta logo]()
$358
This American Airlines deal was found by Cheapflights users on 4/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2310:16 pm
HNL
- ONT
1 stop10h 18m
American Airlines
Wed 4/2912:19 pm
ONT
- HNL
1 stop8h 46m
American Airlines
Deal found 4/1![American Airlines logo]()
$320
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2310:45 pm
HNL
- ONT
1 stop15h 30m
Delta
Fri 5/111:53 am
ONT
- HNL
1 stop12h 27m
Delta
Deal found 4/1![Delta logo]()
$352
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2310:45 pm
HNL
- ONT
1 stop15h 30m
Delta
Thu 4/3011:53 am
ONT
- HNL
1 stop12h 27m
Delta
Deal found 4/1![Delta logo]()
$354
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:35 pm
HNL
- ONT
1 stop10h 18m
Delta
Sun 5/1011:52 am
ONT
- HNL
1 stop10h 56m
Delta
Deal found 4/1![Delta logo]()
$290
This United Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/69:40 pm
HNL
- ONT
2 stops11h 42m
United Airlines
Sun 5/106:00 am
ONT
- HNL
1 stop8h 58m
United Airlines
Deal found 4/1![United Airlines logo]()
$338
This American Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/69:00 pm
HNL
- ONT
1 stop8h 39m
American Airlines
Sun 5/109:24 am
ONT
- HNL
1 stop11h 41m
American Airlines
Deal found 3/31![American Airlines logo]()
$340
This United Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/79:30 pm
HNL
- ONT
1 stop9h 11m
United Airlines
Mon 5/111:30 pm
ONT
- HNL
1 stop9h 04m
United Airlines
Deal found 4/1![United Airlines logo]()
$332
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/188:50 pm
KOA
- ONT
1 stop12h 45m
Delta
Thu 5/286:45 am
ONT
- KOA
1 stop13h 52m
Delta
Deal found 3/31![Delta logo]()
$306
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/198:50 pm
KOA
- ONT
2 stops16h 27m
Delta
Thu 5/286:45 am
ONT
- KOA
1 stop13h 52m
Delta
Deal found 3/31![Delta logo]()
$312
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/228:50 pm
KOA
- ONT
1 stop11h 22m
Delta
Thu 5/286:45 am
ONT
- KOA
1 stop13h 52m
Delta
Deal found 3/31![Delta logo]()
$356
One-way flights from Hawaii to OntarioSearch for one-way flight options from Hawaii to Ontario. Find affordable one-way fares based on user searches. Data last updated April 2, 2026.
Search for one-way flight options from Hawaii to Ontario. Find affordable one-way fares based on user searches. Data last updated April 2, 2026.
This Southwest deal was found by Cheapflights users on 4/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/412:15 pm
HNL
- ONT
Nonstop5h 30m
Southwest
Deal found 4/1![Southwest logo]()
$136
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/410:45 pm
HNL
- ONT
1 stop9h 28m
Delta
Deal found 4/1![Delta logo]()
$145
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:45 pm
HNL
- ONT
1 stop9h 28m
Delta
Deal found 4/1![Delta logo]()
$147
This Delta deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/710:35 pm
HNL
- ONT
1 stop9h 37m
Delta
Deal found 4/2![Delta logo]()
$149
This United Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:00 am
HNL
- ONT
2 stops12h 59m
United Airlines
Deal found 4/1![United Airlines logo]()
$153
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/298:50 pm
KOA
- ONT
1 stop11h 23m
Delta
Deal found 3/31![Delta logo]()
$153
This Jettzy deal was found by Cheapflights users on 4/1. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/72:25 pm
HNL
- ONT
Nonstop5h 34m
Hawaiian Airlines
Deal found 4/1![Hawaiian Airlines logo]()
$164
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/89:55 pm
LIH
- ONT
1 stop12h 13m
Delta
Deal found 4/1![Delta logo]()
$178
This Alaska Airlines deal was found by Cheapflights users on 3/30. 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.
Tue 5/512:35 pm
HNL
- ONT
Nonstop5h 35m
Alaska Airlines
Deal found 3/30![Alaska Airlines logo]()
$179
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/298:20 pm
LIH
- ONT
1 stop14h 19m
Delta
Deal found 4/1![Delta logo]()
$179
This Southwest deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:55 am
HNL
- ONT
Nonstop5h 15m
Southwest
Deal found 3/31![Southwest logo]()
$183
This Delta deal was found by Cheapflights users on 3/30. 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 5/228:50 pm
KOA
- ONT
1 stop11h 22m
Delta
Deal found 3/30![Delta logo]()
$193
Find flight deals from Hawaii to Ontario
Keep the following information in mind while searching for Hawaii to Ontario flight deals. Data was last updated April 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $290 (Delta) |
One-way from | $136 (Southwest) |
Popular in | June |
Cheapest in | February |
Average price | $402 |
Good round-trip deal | $366 or less |
Good one-way deal | $207 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Hawaii to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 2, 2026.
Use the filters below to find and compare flights from Hawaii to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Kailua-KonaOntario
KOA - ONT
KOAONT
Kona Intl
Tue 5/19
8:50 pm-4:17 pm
2 stops16h 27m
Ontario
Thu 5/28
6:45 am-5:37 pm
1 stop13h 52m
$312
Quickest round-trip
HonoluluOntario
HNL - ONT
HNLONT
Honolulu
Sun 5/10
12:35 pm-9:10 pm
Nonstop5h 35m
Ontario
Wed 5/20
9:40 am-12:41 pm
Nonstop6h 01m
$401
Kailua-KonaOntario
KOA - ONT
KOAONT
Kona Intl
Thu 4/30
8:05 am-10:00 pm
2 stops10h 55m
Ontario
Thu 5/7
7:00 am-12:15 pm
1 stop8h 15m
$404
Kailua-KonaOntario
KOA - ONT
KOAONT
Kona Intl
Wed 9/2
10:50 pm-12:12 pm
1 stop10h 22m
Ontario
Mon 9/7
8:00 am-12:50 pm
1 stop7h 50m
$406
Kailua-KonaOntario
KOA - ONT
KOAONT
Kona Intl
Mon 5/18
8:50 pm-12:35 pm
1 stop12h 45m
Ontario
Fri 5/29
6:45 am-5:37 pm
1 stop13h 52m
$415
Kailua-KonaOntario
KOA - ONT
KOAONT
Kona Intl
Thu 4/23
8:50 pm-1:39 pm
1 stop13h 49m
Ontario
Mon 5/4
7:00 am-7:03 pm
1 stop15h 03m
$417
KahuluiOntario
OGG - ONT
OGGONT
Kahului
Tue 5/5
10:10 am-9:10 pm
1 stop8h 00m
Ontario
Wed 5/6
3:24 pm-10:20 pm
1 stop9h 56m
$421
HonoluluOntario
HNL - ONT
HNLONT
Honolulu
Mon 9/14
12:43 pm-9:20 pm
Nonstop5h 37m
Ontario
Mon 9/21
7:20 am-10:22 am
Nonstop6h 02m
$425
Kailua-KonaOntario
KOA - ONT
KOAONT
Kona Intl
Wed 5/20
8:50 pm-12:19 pm
2 stops12h 29m
Ontario
Sun 5/24
11:52 am-5:37 pm
1 stop32h 45m
$434
HonoluluOntario
HNL - ONT
HNLONT
Honolulu
Thu 4/23
12:35 pm-9:10 pm
Nonstop5h 35m
Ontario
Sat 4/25
8:30 am-11:35 am
Nonstop6h 05m
$437
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Hawaii to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Hawaii with our price prediction graph.
HNL-ONT
KOA-ONT
OGG-ONT
ITO-ONT
LIH-ONT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Hawaii to Ontario
USHI-ONT
HNL-ONT
KOA-ONT
OGG-ONT
ITO-ONT
What is the cheapest month to book a flight from Hawaii to Ontario?
Currently, February is the cheapest month in which you can book a flight from Hawaii to Ontario (average of $124). Flying from Hawaii to Ontario in November is currently the most expensive (average of $208). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from HI to ONT?
Find hourly flight availability from Hawaii to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 2, 2026.
When flying from Hawaii to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Hawaii to Ontario
Explore weekly flight availability from Hawaii to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 2, 2026.
The most flights from USHI to ONT are scheduled on a Monday (2 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).
How much does it cost to fly round-trip from Hawaii to Ontario?
Related info for your journey
Find useful and relevant information for your journey from Hawaii to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Ontario flight routes
Other flight options
Popular flights
Top destinations
Alternative routes for Hawaii to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Hawaii to Ontario by cabin class
Find flights from Hawaii 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 April 2, 2026.
Hawaii and Ontario flights
Browse other Hawaii and Ontario flight options. Last updated on April 2, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Hawaii to Ontario flights
Consider these flights traveling from Hawaii to Ontario.
Top 4 airlines flying from Hawaii to Ontario
Discover the top 4 airlines that operate flights from Hawaii to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$218 | Average$498 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$311 | Average$495 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$317 | Average$480 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$319 | Average$468 | FlexibilityNo cancel fee | On-time63% |