$213+ 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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LIH
May 22 — May 291
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
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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 22, 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 22, 2026.
This Delta deal was found by Cheapflights users on 4/20. 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 9/1511:55 am
ONT
- LIH
1 stop10h 25m
Delta
Tue 9/229:45 pm
LIH
- ONT
1 stop10h 29m
Delta
Deal found 4/20![Delta logo]()
$326
This Delta deal was found by Cheapflights users on 4/20. 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 9/111:55 am
ONT
- LIH
1 stop10h 25m
Delta
Wed 9/99:45 pm
LIH
- ONT
2 stops15h 29m
Delta
Deal found 4/20![Delta logo]()
$332
This Delta deal was found by Cheapflights users on 4/20. 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
Tue 9/89:45 pm
LIH
- ONT
2 stops15h 29m
Delta
Deal found 4/20![Delta logo]()
$337
This United Airlines deal was found by Cheapflights users on 4/20. 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 9/131:44 pm
ONT
- LIH
1 stop9h 00m
United Airlines
Sun 9/2010:55 pm
LIH
- ONT
1 stop10h 17m
United Airlines
Deal found 4/20![United Airlines logo]()
$371
This Delta deal was found by Cheapflights users on 4/20. 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 9/1011:55 am
ONT
- LIH
1 stop10h 25m
Delta
Thu 9/179:45 pm
LIH
- ONT
1 stop12h 04m
Delta
Deal found 4/20![Delta logo]()
$380
This Delta deal was found by Cheapflights users on 4/21. 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 9/2211:55 am
ONT
- LIH
1 stop10h 25m
Delta
Thu 10/89:45 pm
LIH
- ONT
2 stops15h 27m
Delta
Deal found 4/21![Delta logo]()
$386
This Southwest deal was found by Cheapflights users on 4/19. 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 8/1211:10 am
ONT
- LIH
1 stop8h 00m
Southwest
Wed 8/269:25 pm
LIH
- ONT
1 stop11h 25m
Southwest
Deal found 4/19![Southwest logo]()
$389
This Delta deal was found by Cheapflights users on 4/20. 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 9/1511:55 am
ONT
- LIH
1 stop10h 25m
Delta
Fri 9/189:45 pm
LIH
- ONT
1 stop21h 55m
Delta
Deal found 4/20![Delta logo]()
$390
This Delta deal was found by Cheapflights users on 4/21. 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 9/219:55 am
ONT
- LIH
2 stops12h 25m
Delta
Tue 10/69:45 pm
LIH
- ONT
2 stops15h 27m
Delta
Deal found 4/21![Delta logo]()
$391
This Delta deal was found by Cheapflights users on 4/20. 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 9/137:00 am
ONT
- LIH
1 stop15h 20m
Delta
Thu 9/179:45 pm
LIH
- ONT
1 stop12h 04m
Delta
Deal found 4/20![Delta logo]()
$395
This Delta deal was found by Cheapflights users on 4/20. 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 8/307:00 am
ONT
- LIH
1 stop15h 20m
Delta
Thu 9/109:45 pm
LIH
- ONT
2 stops15h 29m
Delta
Deal found 4/20![Delta logo]()
$401
This Delta deal was found by Cheapflights users on 4/20. 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 9/17:00 am
ONT
- LIH
1 stop15h 20m
Delta
Mon 9/79:45 pm
LIH
- ONT
1 stop10h 29m
Delta
Deal found 4/20![Delta logo]()
$412
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 22, 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 22, 2026.
This Delta deal was found by Cheapflights users on 4/20. 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 5/1111:52 am
ONT
- LIH
1 stop10h 14m
Delta
Mon 5/189:55 pm
LIH
- ONT
1 stop10h 17m
Delta
Deal found 4/20![Delta logo]()
$458
This Alaska Airlines deal was found by Cheapflights users on 4/20. 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 7/142:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Sun 7/1910:28 pm
LIH
- ONT
1 stop9h 46m
Alaska Airlines
Deal found 4/20![Alaska Airlines logo]()
$509
This Southwest deal was found by Cheapflights users on 4/17. 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 4/305:30 am
ONT
- LIH
1 stop10h 40m
Southwest
Wed 5/68:20 am
LIH
- ONT
2 stops10h 50m
Southwest
Deal found 4/17![Southwest logo]()
$567
This United Airlines deal was found by Cheapflights users on 4/18. 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 6/251:50 pm
ONT
- LIH
1 stop8h 52m
United Airlines
Mon 6/2910:44 pm
LIH
- ONT
1 stop10h 28m
United Airlines
Deal found 4/18![United Airlines logo]()
$592
This Alaska Airlines deal was found by Cheapflights users on 4/20. 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 7/152:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Sun 7/1910:28 pm
LIH
- ONT
1 stop9h 46m
Alaska Airlines
Deal found 4/20![Alaska Airlines logo]()
$509
This Delta deal was found by Cheapflights users on 4/17. 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 7/35:24 pm
ONT
- LIH
2 stops28h 37m
Delta
Mon 7/69:55 pm
LIH
- ONT
1 stop10h 24m
Delta
Deal found 4/17![Delta logo]()
$539
This Alaska Airlines deal was found by Cheapflights users on 4/21. 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 7/62:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Wed 7/1510:28 pm
LIH
- ONT
1 stop11h 41m
Alaska Airlines
Deal found 4/21![Alaska Airlines logo]()
$520
This Southwest deal was found by Cheapflights users on 4/17. 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 5/2511:00 am
ONT
- LIH
2 stops13h 25m
Southwest
Fri 5/298:20 am
LIH
- ONT
2 stops10h 00m
Southwest
Deal found 4/17![Southwest logo]()
$625
This Delta deal was found by Cheapflights users on 4/19. 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 7/176:00 am
ONT
- LIH
2 stops16h 03m
Delta
Mon 7/209:55 pm
LIH
- ONT
1 stop10h 24m
Delta
Deal found 4/19![Delta logo]()
$587
This Delta deal was found by Cheapflights users on 4/17. 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 5/2611:52 am
ONT
- LIH
1 stop10h 14m
Delta
Tue 6/99:55 pm
LIH
- ONT
2 stops15h 47m
Delta
Deal found 4/17![Delta logo]()
$590
This Alaska Airlines deal was found by Cheapflights users on 4/20. 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 7/62:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Sun 7/1210:28 pm
LIH
- ONT
1 stop9h 46m
Alaska Airlines
Deal found 4/20![Alaska Airlines logo]()
$595
Last-minute flights from Ontario to Kaua'iDiscover last-minute flight deals from Ontario to Kaua'i. Data last updated April 22, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Kaua'i. Data last updated April 22, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/17. 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 5/1111:52 am
ONT
- LIH
1 stop10h 14m
Delta
Tue 5/199:55 pm
LIH
- ONT
1 stop10h 17m
Delta
Deal found 4/17![Delta logo]()
$435
This Delta deal was found by Cheapflights users on 4/19. 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 5/1111:52 am
ONT
- LIH
1 stop10h 14m
Delta
Fri 5/159:55 pm
LIH
- ONT
2 stops15h 22m
Delta
Deal found 4/19![Delta logo]()
$440
This Delta deal was found by Cheapflights users on 4/20. 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 5/1111:52 am
ONT
- LIH
1 stop10h 14m
Delta
Mon 5/189:55 pm
LIH
- ONT
1 stop10h 17m
Delta
Deal found 4/20![Delta logo]()
$458
This Southwest deal was found by Cheapflights users on 4/17. 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 5/126:30 am
ONT
- LIH
2 stops12h 40m
Southwest
Tue 5/199:10 pm
LIH
- ONT
2 stops11h 25m
Southwest
Deal found 4/17![Southwest logo]()
$445
This Delta deal was found by Cheapflights users on 4/19. 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 5/1211:52 am
ONT
- LIH
1 stop10h 14m
Delta
Fri 5/159:55 pm
LIH
- ONT
2 stops15h 22m
Delta
Deal found 4/19![Delta logo]()
$463
This Alaska Airlines deal was found by Cheapflights users on 4/17. 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 5/1912:04 pm
ONT
- LIH
1 stop12h 22m
Alaska Airlines
Mon 5/2510:26 pm
LIH
- ONT
1 stop9h 44m
Alaska Airlines
Deal found 4/17![Alaska Airlines logo]()
$467
This Kiwi.com deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/259:40 am
ONT
- LIH
1 stop8h 59m
Multiple Airlines
Fri 5/2912:00 pm
LIH
- ONT
1 stop7h 17m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$444
This Alaska Airlines deal was found by Cheapflights users on 4/18. 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 5/269:40 am
ONT
- LIH
1 stop12h 52m
Multiple Airlines
Thu 5/289:45 am
LIH
- ONT
1 stop9h 32m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$425
This Alaska Airlines deal was found by Cheapflights users on 4/21. 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 5/269:40 am
ONT
- LIH
1 stop10h 22m
Multiple Airlines
Tue 6/212:02 pm
LIH
- ONT
1 stop8h 54m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$430
This Alaska Airlines deal was found by Cheapflights users on 4/20. 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 5/269:40 am
ONT
- LIH
1 stop8h 59m
Multiple Airlines
Fri 5/2912:00 pm
LIH
- ONT
1 stop7h 17m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$470
This Alaska Airlines deal was found by Cheapflights users on 4/21. 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 5/2712:06 pm
ONT
- LIH
1 stop12h 20m
Alaska Airlines
Tue 6/212:02 pm
LIH
- ONT
1 stop8h 54m
Alaska Airlines
Deal found 4/21![Alaska Airlines logo]()
$434
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 22, 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 22, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/20. 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 5/269:40 am
ONT
- LIH
1 stop10h 22m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$213
This Alaska Airlines deal was found by Cheapflights users on 4/20. 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 7/142:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Deal found 4/20![Alaska Airlines logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 4/17. 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 5/199:40 am
ONT
- LIH
1 stop15h 12m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$223
This Delta deal was found by Cheapflights users on 4/19. 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 7/1311:59 am
ONT
- LIH
1 stop10h 04m
Delta
Deal found 4/19![Delta logo]()
$249
This Delta deal was found by Cheapflights users on 4/20. 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 7/1911:59 am
ONT
- LIH
1 stop10h 04m
Delta
Deal found 4/20![Delta logo]()
$252
This Alaska Airlines deal was found by Cheapflights users on 4/19. 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 6/29:40 am
ONT
- LIH
1 stop15h 12m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$258
This Alaska Airlines deal was found by Cheapflights users on 4/19. 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 6/412:04 pm
ONT
- LIH
1 stop12h 22m
Alaska Airlines
Deal found 4/19![Alaska Airlines logo]()
$262
This Alaska Airlines deal was found by Cheapflights users on 4/18. 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 5/88:30 am
ONT
- LIH
1 stop11h 54m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$288
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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 5/1512:04 pm
ONT
- LIH
1 stop12h 22m
Alaska Airlines
Deal found 4/22![Alaska Airlines logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/189:40 am
ONT
- LIH
1 stop11h 02m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$297
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 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $425 (Alaska Airlines) |
One-way from | $213 (Alaska Airlines) |
Popular in | June |
Cheapest in | February |
Average price | $431 |
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 22, 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
Mon 5/11
11:52 am-7:06 pm
1 stop10h 14m
Lihue
Mon 5/18
9:55 pm-11:12 am
1 stop10h 17m
$458
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Tue 7/14
2:05 pm-9:25 pm
1 stop10h 20m
Lihue
Sun 7/19
10:28 pm-11:14 am
1 stop9h 46m
$509
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Wed 7/15
2:05 pm-9:25 pm
1 stop10h 20m
Lihue
Sun 7/19
10:28 pm-11:14 am
1 stop9h 46m
$509
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Mon 7/6
2:05 pm-9:25 pm
1 stop10h 20m
Lihue
Wed 7/15
10:28 pm-1:09 pm
1 stop11h 41m
$520
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Fri 7/3
5:24 pm-7:01 pm
2 stops28h 37m
Lihue
Mon 7/6
9:55 pm-11:19 am
1 stop10h 24m
$539
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Thu 4/30
5:30 am-1:10 pm
1 stop10h 40m
Lihue
Wed 5/6
8:20 am-10:10 pm
2 stops10h 50m
$567
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Fri 7/17
6:00 am-7:03 pm
2 stops16h 03m
Lihue
Mon 7/20
9:55 pm-11:19 am
1 stop10h 24m
$587
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Tue 5/26
11:52 am-7:06 pm
1 stop10h 14m
Lihue
Tue 6/9
9:55 pm-4:42 pm
2 stops15h 47m
$590
Quickest round-trip
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Thu 6/25
1:50 pm-7:42 pm
1 stop8h 52m
Lihue
Mon 6/29
10:44 pm-12:12 pm
1 stop10h 28m
$592
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Mon 7/6
2:05 pm-9:25 pm
1 stop10h 20m
Lihue
Sun 7/12
10:28 pm-11:14 am
1 stop9h 46m
$595
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, August is the cheapest month in which you can book a flight from Ontario to Kaua'i (average of $230). Flying from Ontario to Kaua'i in June is currently the most expensive (average of $519). 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 22, 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.
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
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 22, 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 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$236 | Average$352 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$258 | Average$646 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$361 | Average$588 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$377 | Average$564 | FlexibilityNo cancel fee | On-time75% |