$179+ Cheap flights from Ontario (ONT) to Kaua'i
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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LIH
May 3 — May 101
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Kaua'i 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 Kaua'i
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Cheapest flights from Ontario to Kaua'iExplore the most affordable flight options available from Ontario to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 3, 2026.
Explore the most affordable flight options available from Ontario to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 3, 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 4/287:00 am
ONT
- LIH
1 stop13h 40m
Delta
Thu 5/79:55 pm
LIH
- ONT
1 stop11h 40m
Delta
Deal found 3/31![Delta logo]()
$357
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 4/231:27 pm
ONT
- LIH
1 stop9h 26m
United Airlines
Mon 4/2711:00 pm
LIH
- ONT
1 stop7h 56m
United Airlines
Deal found 4/1![United Airlines logo]()
$358
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.
Tue 5/57:00 am
ONT
- LIH
1 stop13h 40m
Delta
Mon 5/119:55 pm
LIH
- ONT
2 stops15h 22m
Delta
Deal found 4/1![Delta logo]()
$362
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 4/286:00 am
ONT
- LIH
2 stops14h 40m
Delta
Mon 5/48:20 pm
LIH
- ONT
1 stop14h 19m
Delta
Deal found 3/31![Delta logo]()
$363
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 4/286:00 am
ONT
- LIH
2 stops14h 40m
Delta
Wed 5/68:20 pm
LIH
- ONT
2 stops12h 59m
Delta
Deal found 3/31![Delta logo]()
$368
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.
Tue 5/57:00 am
ONT
- LIH
1 stop13h 40m
Delta
Sun 5/109:55 pm
LIH
- ONT
2 stops15h 22m
Delta
Deal found 4/1![Delta logo]()
$386
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 5/286:45 am
ONT
- LIH
1 stop15h 21m
Delta
Mon 6/89:55 pm
LIH
- ONT
1 stop10h 22m
Delta
Deal found 4/1![Delta logo]()
$388
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.
Sat 5/96:00 am
ONT
- LIH
2 stops16h 06m
Delta
Mon 5/119:55 pm
LIH
- ONT
2 stops15h 22m
Delta
Deal found 4/1![Delta logo]()
$391
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 5/76:45 am
ONT
- LIH
1 stop15h 21m
Delta
Mon 5/119:55 pm
LIH
- ONT
2 stops15h 22m
Delta
Deal found 4/1![Delta logo]()
$393
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 5/65:55 pm
ONT
- LIH
1 stop28h 11m
Delta
Mon 5/119:55 pm
LIH
- ONT
2 stops15h 22m
Delta
Deal found 4/1![Delta logo]()
$399
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 4/227:00 am
ONT
- LIH
1 stop13h 40m
Delta
Tue 4/289:25 pm
LIH
- ONT
2 stops16h 50m
Delta
Deal found 3/31![Delta logo]()
$400
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 4/236:00 am
ONT
- LIH
1 stop13h 10m
Southwest
Mon 4/279:10 pm
LIH
- ONT
2 stops11h 25m
Southwest
Deal found 4/1![Southwest logo]()
$410
Best flights from Ontario to Kaua'iDiscover carefully curated flight deals from Ontario to Kaua'i that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 3, 2026.
Discover carefully curated flight deals from Ontario to Kaua'i that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 3, 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 4/287:00 am
ONT
- LIH
1 stop13h 40m
Delta
Thu 5/79:55 pm
LIH
- ONT
1 stop11h 40m
Delta
Deal found 3/31![Delta logo]()
$357
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.
Thu 7/92:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Wed 7/1510:28 pm
LIH
- ONT
1 stop9h 46m
Alaska Airlines
Deal found 3/29![Alaska Airlines logo]()
$476
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.
Mon 8/106:30 am
ONT
- LIH
1 stop12h 40m
Southwest
Mon 8/179:25 pm
LIH
- ONT
1 stop13h 10m
Southwest
Deal found 3/31![Southwest logo]()
$489
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.
Wed 5/209:40 am
ONT
- LIH
1 stop9h 42m
Multiple Airlines
Tue 5/263:45 pm
LIH
- ONT
1 stop27h 32m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$508
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.
Thu 5/286:00 am
ONT
- LIH
1 stop8h 50m
United Airlines
Sun 6/710:44 pm
LIH
- ONT
1 stop10h 28m
United Airlines
Deal found 3/29![United Airlines logo]()
$584
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.
Thu 9/107:20 am
ONT
- LIH
1 stop7h 26m
Multiple Airlines
Sun 9/136:15 pm
LIH
- ONT
1 stop24h 05m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$510
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 7/222:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Wed 7/2910:28 pm
LIH
- ONT
1 stop11h 41m
Alaska Airlines
Deal found 3/31![Alaska Airlines logo]()
$518
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 5/2011:52 am
ONT
- LIH
1 stop10h 14m
Delta
Tue 5/269:55 pm
LIH
- ONT
2 stops11h 24m
Delta
Deal found 4/1![Delta logo]()
$527
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:00 am
ONT
- LIH
2 stops15h 05m
Southwest
Sat 9/196:15 am
LIH
- ONT
2 stops9h 05m
Southwest
Deal found 4/2![Southwest logo]()
$555
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.
Thu 8/66:20 am
ONT
- LIH
1 stop15h 43m
Delta
Thu 8/139:45 pm
LIH
- ONT
1 stop12h 04m
Delta
Deal found 3/31![Delta logo]()
$538
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.
Wed 7/2912:04 pm
ONT
- LIH
1 stop12h 21m
Alaska Airlines
Sun 8/210:28 pm
LIH
- ONT
1 stop11h 41m
Alaska Airlines
Deal found 4/2![Alaska Airlines logo]()
$551
Last-minute flights from Ontario to Kaua'iDiscover last-minute flight deals from Ontario to Kaua'i. Data last updated April 3, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Kaua'i. Data last updated April 3, 2026 and is based on user searches.
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 4/227:00 am
ONT
- LIH
1 stop13h 40m
Delta
Tue 4/289:25 pm
LIH
- ONT
2 stops16h 50m
Delta
Deal found 3/31![Delta logo]()
$400
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 4/231:27 pm
ONT
- LIH
1 stop9h 26m
United Airlines
Mon 4/2711:00 pm
LIH
- ONT
1 stop7h 56m
United Airlines
Deal found 4/1![United Airlines logo]()
$358
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 4/236:00 am
ONT
- LIH
1 stop13h 10m
Southwest
Mon 4/279:10 pm
LIH
- ONT
2 stops11h 25m
Southwest
Deal found 4/1![Southwest logo]()
$410
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 4/287:00 am
ONT
- LIH
1 stop13h 40m
Delta
Mon 5/48:20 pm
LIH
- ONT
1 stop14h 19m
Delta
Deal found 3/31![Delta logo]()
$357
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 4/286:00 am
ONT
- LIH
2 stops14h 40m
Delta
Wed 5/68:20 pm
LIH
- ONT
2 stops12h 59m
Delta
Deal found 3/31![Delta logo]()
$368
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.
Tue 5/57:00 am
ONT
- LIH
1 stop13h 40m
Delta
Mon 5/119:55 pm
LIH
- ONT
2 stops15h 22m
Delta
Deal found 4/1![Delta logo]()
$362
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.
Tue 5/57:00 am
ONT
- LIH
1 stop13h 40m
Delta
Sun 5/109:55 pm
LIH
- ONT
2 stops15h 22m
Delta
Deal found 4/1![Delta logo]()
$386
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 5/65:55 pm
ONT
- LIH
1 stop28h 11m
Delta
Mon 5/119:55 pm
LIH
- ONT
2 stops15h 22m
Delta
Deal found 4/1![Delta logo]()
$399
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 5/76:45 am
ONT
- LIH
1 stop15h 21m
Delta
Mon 5/119:55 pm
LIH
- ONT
2 stops15h 22m
Delta
Deal found 4/1![Delta logo]()
$393
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.
Sat 5/96:00 am
ONT
- LIH
2 stops16h 06m
Delta
Mon 5/119:55 pm
LIH
- ONT
2 stops15h 22m
Delta
Deal found 4/1![Delta logo]()
$391
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 5/286:45 am
ONT
- LIH
1 stop15h 21m
Delta
Mon 6/89:55 pm
LIH
- ONT
1 stop10h 22m
Delta
Deal found 4/1![Delta logo]()
$388
One-way flights from Ontario to Kaua'iSearch for one-way flight options from Ontario to Kaua'i. Find affordable one-way fares based on user searches. Data last updated April 3, 2026.
Search for one-way flight options from Ontario to Kaua'i. Find affordable one-way fares based on user searches. Data last updated April 3, 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.
Tue 4/287:00 am
ONT
- LIH
1 stop13h 40m
Delta
Deal found 4/1![Delta logo]()
$179
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.
Tue 4/216:00 am
ONT
- LIH
2 stops14h 40m
Delta
Deal found 3/29![Delta logo]()
$201
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 4/96:10 am
ONT
- LIH
1 stop12h 05m
American Airlines
Deal found 4/1![American Airlines logo]()
$202
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 7/88:00 am
ONT
- LIH
1 stop13h 05m
Southwest
Deal found 3/31![Southwest logo]()
$213
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 8/1711:55 am
ONT
- LIH
1 stop10h 25m
Delta
Deal found 3/31![Delta logo]()
$217
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2411:00 am
ONT
- LIH
2 stops13h 25m
Southwest
Deal found 4/2![Southwest logo]()
$221
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 8/186:00 am
ONT
- LIH
2 stops14h 12m
Delta
Deal found 3/31![Delta logo]()
$223
This Kissandfly.com 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:32 am
ONT
- LIH
1 stop16h 49m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$227
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.
Sun 8/306:00 am
ONT
- LIH
2 stops16h 20m
Delta
Deal found 4/1![Delta logo]()
$228
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.
Mon 4/271:27 pm
ONT
- LIH
1 stop9h 26m
United Airlines
Deal found 4/1![United Airlines logo]()
$234
Find flight deals from Ontario to Kaua'i
Keep the following information in mind while searching for Ontario to Kaua'i flight deals. Data was last updated April 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $357 (Delta) |
One-way from | $179 (Delta) |
Popular in | June |
Cheapest in | February |
Average price | $456 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Kaua'i 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 3, 2026.
Use the filters below to find and compare flights from Ontario to Kaua'i that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Tue 4/28
7:00 am-5:40 pm
1 stop13h 40m
Lihue
Thu 5/7
9:55 pm-12:35 pm
1 stop11h 40m
$357
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Thu 7/9
2:05 pm-9:25 pm
1 stop10h 20m
Lihue
Wed 7/15
10:28 pm-11:14 am
1 stop9h 46m
$476
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Mon 8/10
6:30 am-4:10 pm
1 stop12h 40m
Lihue
Mon 8/17
9:25 pm-1:35 pm
1 stop13h 10m
$489
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Wed 5/20
9:40 am-4:22 pm
1 stop9h 42m
Lihue
Tue 5/26
3:45 pm-10:17 pm
1 stop27h 32m
$508
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Thu 9/10
7:20 am-11:46 am
1 stop7h 26m
Lihue
Sun 9/13
6:15 pm-9:20 pm
1 stop24h 05m
$510
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Wed 7/22
2:05 pm-9:25 pm
1 stop10h 20m
Lihue
Wed 7/29
10:28 pm-1:09 pm
1 stop11h 41m
$518
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Wed 5/20
11:52 am-7:06 pm
1 stop10h 14m
Lihue
Tue 5/26
9:55 pm-12:19 pm
2 stops11h 24m
$527
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Thu 8/6
6:20 am-7:03 pm
1 stop15h 43m
Lihue
Thu 8/13
9:45 pm-12:49 pm
1 stop12h 04m
$538
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Wed 7/29
12:04 pm-9:25 pm
1 stop12h 21m
Lihue
Sun 8/2
10:28 pm-1:09 pm
1 stop11h 41m
$551
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Sun 9/13
6:00 am-6:05 pm
2 stops15h 05m
Lihue
Sat 9/19
6:15 am-6:20 pm
2 stops9h 05m
$555
Showing 1-10 of 22 resultsSorted by cheapest first
Best time to book a flight from Ontario to Kaua'i
Have a flexible travel schedule? Discover the best time to fly to Kaua'i from Ontario with our price prediction graph.
ONT-LIH
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 Kaua'i
ONT-zzFUS
ONT-LIH
What is the cheapest month to book a flight from Ontario to Kaua'i?
Currently, September is the cheapest month in which you can book a flight from Ontario to Kaua'i (average of $181). Flying from Ontario to Kaua'i in June is currently the most expensive (average of $277). 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.
Reviews of airlines servicing Kaua'i
Get insights into the airlines that provide service to Kaua'i. 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 Kaua'i. Reviews last updated April 3, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta from Ontario to Kaua'i by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Related info for your journey
Find useful and relevant information for your journey from Ontario to Kaua'i. 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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Alternative routes for Ontario to Kaua'i
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Kaua'i by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Kaua'i by cabin class
Find flights from Ontario to Kaua'i, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Kaua'i flights
Browse other Ontario and Kaua'i flight options. Last updated on April 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Ontario to Kaua'i
Discover the top 4 airlines that operate flights from Ontario to Kaua'i. 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 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$216 | Average$352 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$258 | Average$646 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$361 | Average$605 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$377 | Average$577 | FlexibilityNo cancel fee | On-time75% |