$190+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LIH
Jul 23 — Jul 301
Round-trip
1 adult, Economy
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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 June 23, 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 June 23, 2026.
This CheapOair deal was found by Cheapflights users on 6/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/145:52 pm
ONT
- LIH
1 stop20h 17m
Multiple Airlines
Wed 11/189:01 am
LIH
- ONT
1 stop10h 31m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$384
This Southwest deal was found by Cheapflights users on 6/22. 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 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 8/199:25 pm
LIH
- ONT
1 stop11h 25m
Southwest
Deal found 6/22![Southwest logo]()
$388
This Delta deal was found by Cheapflights users on 6/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1011:56 am
ONT
- LIH
1 stop10h 20m
Delta
Wed 8/199:55 pm
LIH
- ONT
1 stop10h 21m
Delta
Deal found 6/22![Delta logo]()
$389
This United Airlines deal was found by Cheapflights users on 6/18. 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.
Mon 9/76:08 am
ONT
- LIH
1 stop8h 51m
United Airlines
Fri 9/1110:48 pm
LIH
- ONT
1 stop10h 24m
United Airlines
Deal found 6/18![United Airlines logo]()
$398
This Southwest deal was found by Cheapflights users on 6/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/265:45 am
ONT
- LIH
2 stops13h 25m
Southwest
Tue 9/17:10 pm
LIH
- ONT
2 stops9h 45m
Southwest
Deal found 6/21![Southwest logo]()
$399
This Booking.com deal was found by Cheapflights users on 6/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:00 am
ONT
- LIH
1 stop12h 20m
Multiple Airlines
Mon 11/28:45 pm
LIH
- ONT
1 stop22h 47m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$413
This Southwest deal was found by Cheapflights users on 6/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:30 am
ONT
- LIH
1 stop12h 40m
Southwest
Fri 9/117:10 pm
LIH
- ONT
2 stops9h 55m
Southwest
Deal found 6/18![Southwest logo]()
$414
This Booking.com deal was found by Cheapflights users on 6/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/142:13 pm
ONT
- LIH
1 stop10h 17m
Multiple Airlines
Tue 10/208:45 pm
LIH
- ONT
1 stop21h 37m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$417
This Southwest deal was found by Cheapflights users on 6/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:00 am
ONT
- LIH
1 stop13h 10m
Southwest
Fri 10/98:20 am
LIH
- ONT
1 stop9h 25m
Southwest
Deal found 6/21![Southwest logo]()
$418
This Alaska Airlines deal was found by Cheapflights users on 6/22. 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.
Wed 7/292:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Wed 8/510:28 pm
LIH
- ONT
1 stop11h 41m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$421
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 June 23, 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 June 23, 2026.
This Southwest deal was found by Cheapflights users on 6/22. 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 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 8/199:25 pm
LIH
- ONT
1 stop11h 25m
Southwest
Deal found 6/22![Southwest logo]()
$388
This Delta deal was found by Cheapflights users on 6/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1011:56 am
ONT
- LIH
1 stop10h 20m
Delta
Wed 8/199:55 pm
LIH
- ONT
1 stop10h 21m
Delta
Deal found 6/22![Delta logo]()
$389
This Alaska Airlines deal was found by Cheapflights users on 6/19. 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.
Wed 9/1612:12 pm
ONT
- LIH
1 stop11h 02m
Alaska Airlines
Mon 9/219:35 pm
LIH
- ONT
1 stop10h 41m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$446
This Delta deal was found by Cheapflights users on 6/21. 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.
Wed 8/2611:56 am
ONT
- LIH
1 stop10h 20m
Delta
Tue 9/19:55 pm
LIH
- ONT
2 stops15h 29m
Delta
Deal found 6/21![Delta logo]()
$394
This Southwest deal was found by Cheapflights users on 6/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:30 am
ONT
- LIH
1 stop12h 40m
Southwest
Fri 9/117:10 pm
LIH
- ONT
2 stops9h 55m
Southwest
Deal found 6/18![Southwest logo]()
$414
This Alaska Airlines deal was found by Cheapflights users on 6/20. 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.
Sun 8/162:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Thu 8/279:35 pm
LIH
- ONT
1 stop10h 29m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$454
This Delta deal was found by Cheapflights users on 6/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:54 am
ONT
- LIH
1 stop10h 16m
Delta
Tue 9/159:50 pm
LIH
- ONT
1 stop10h 14m
Delta
Deal found 6/18![Delta logo]()
$456
This Alaska Airlines deal was found by Cheapflights users on 6/22. 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.
Tue 7/282:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Thu 8/610:28 pm
LIH
- ONT
1 stop9h 46m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$487
This Delta deal was found by Cheapflights users on 6/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1111:54 am
ONT
- LIH
1 stop10h 16m
Delta
Tue 9/159:50 pm
LIH
- ONT
1 stop10h 14m
Delta
Deal found 6/18![Delta logo]()
$486
This Alaska Airlines deal was found by Cheapflights users on 6/21. 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 7/152:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Mon 8/1010:28 pm
LIH
- ONT
1 stop9h 46m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$489
This Delta deal was found by Cheapflights users on 6/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:54 am
ONT
- LIH
1 stop10h 16m
Delta
Mon 9/149:50 pm
LIH
- ONT
1 stop10h 14m
Delta
Deal found 6/18![Delta logo]()
$504
Last-minute flights from Ontario to Kaua'iDiscover last-minute flight deals from Ontario to Kaua'i. Data last updated June 23, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Kaua'i. Data last updated June 23, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 6/21. 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.
Sat 7/119:11 am
ONT
- LIH
1 stop7h 47m
Multiple Airlines
Tue 8/1110:28 pm
LIH
- ONT
1 stop11h 41m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$482
This Alaska Airlines deal was found by Cheapflights users on 6/21. 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.
Sun 7/122:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Wed 8/1210:28 pm
LIH
- ONT
1 stop9h 46m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$456
This Booking.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/139:20 pm
ONT
- LIH
1 stop20h 20m
Alaska Airlines
Mon 7/2010:28 pm
LIH
- ONT
1 stop9h 46m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$499
This Southwest deal was found by Cheapflights users on 6/19. 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 7/1510:20 am
ONT
- LIH
1 stop8h 50m
Southwest
Thu 7/166:15 am
LIH
- ONT
1 stop11h 35m
Southwest
Deal found 6/19![Southwest logo]()
$485
This Alaska Airlines deal was found by Cheapflights users on 6/21. 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 7/202:05 pm
ONT
- LIH
1 stop10h 20m
Multiple Airlines
Thu 7/2312:23 pm
LIH
- ONT
1 stop8h 29m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$454
This Alaska Airlines deal was found by Cheapflights users on 6/22. 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.
Tue 7/212:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Tue 7/2810:28 pm
LIH
- ONT
1 stop9h 46m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 6/20. 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.
Thu 7/231:50 pm
ONT
- LIH
1 stop8h 52m
United Airlines
Tue 7/2810:00 pm
LIH
- ONT
2 stops11h 12m
United Airlines
Deal found 6/20![United Airlines logo]()
$495
This Alaska Airlines deal was found by Cheapflights users on 6/22. 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.
Mon 7/272:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Thu 8/610:28 pm
LIH
- ONT
1 stop11h 41m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$487
This Priceline deal was found by Cheapflights users on 6/18. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/282:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Tue 8/410:28 pm
LIH
- ONT
1 stop9h 46m
Alaska Airlines
Deal found 6/18![Alaska Airlines logo]()
$444
This Alaska Airlines deal was found by Cheapflights users on 6/22. 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.
Wed 7/292:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Wed 8/510:28 pm
LIH
- ONT
1 stop11h 41m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$421
This Alaska Airlines deal was found by Cheapflights users on 6/22. 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.
Wed 7/292:05 pm
ONT
- LIH
1 stop10h 20m
Multiple Airlines
Wed 8/53:45 pm
LIH
- ONT
2 stops18h 24m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$492
This Booking.com deal was found by Cheapflights users on 6/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/305:32 pm
ONT
- LIH
1 stop20h 36m
Multiple Airlines
Wed 8/510:28 pm
LIH
- ONT
1 stop11h 41m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$483
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 June 23, 2026.
Search for one-way flight options from Ontario to Kaua'i. Find affordable one-way fares based on user searches. Data last updated June 23, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/20. 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 8/179:11 am
ONT
- LIH
1 stop8h 20m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$190
This Priceline deal was found by Cheapflights users on 6/22. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/412:04 pm
ONT
- LIH
1 stop12h 21m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$194
This Booking.com deal was found by Cheapflights users on 6/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:11 am
ONT
- LIH
1 stop26h 59m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$196
This Delta deal was found by Cheapflights users on 6/20. 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 8/186:00 am
ONT
- LIH
2 stops16h 16m
Delta
Deal found 6/20![Delta logo]()
$200
This Booking.com deal was found by Cheapflights users on 6/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/155:32 pm
ONT
- LIH
1 stop20h 36m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$203
This Priceline deal was found by Cheapflights users on 6/22. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/812:12 pm
ONT
- LIH
1 stop11h 02m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$204
This Delta deal was found by Cheapflights users on 6/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:00 am
ONT
- LIH
2 stops16h 16m
Delta
Deal found 6/22![Delta logo]()
$205
This Trip.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/22:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$209
This Booking.com deal was found by Cheapflights users on 6/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1412:12 pm
ONT
- LIH
1 stop11h 02m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$217
This Expedia deal was found by Cheapflights users on 6/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/32:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$226
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 June 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $384 (CheapOair) |
One-way from | $190 (Alaska Airlines) |
Popular in | December |
Cheapest in | February |
Average price | $596 |
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 June 23, 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
Quickest round-trip
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Wed 8/12
11:10 am-4:10 pm
1 stop8h 00m
Lihue
Wed 8/19
9:25 pm-11:50 am
1 stop11h 25m
$388
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Mon 8/10
11:56 am-7:16 pm
1 stop10h 20m
Lihue
Wed 8/19
9:55 pm-11:16 am
1 stop10h 21m
$389
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Wed 8/26
11:56 am-7:16 pm
1 stop10h 20m
Lihue
Tue 9/1
9:55 pm-4:24 pm
2 stops15h 29m
$394
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Mon 9/7
6:30 am-4:10 pm
1 stop12h 40m
Lihue
Fri 9/11
7:10 pm-8:05 am
2 stops9h 55m
$414
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Wed 9/16
12:12 pm-8:14 pm
1 stop11h 02m
Lihue
Mon 9/21
9:35 pm-11:16 am
1 stop10h 41m
$446
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Sun 8/16
2:05 pm-9:25 pm
1 stop10h 20m
Lihue
Thu 8/27
9:35 pm-11:04 am
1 stop10h 29m
$454
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Thu 9/10
11:54 am-7:10 pm
1 stop10h 16m
Lihue
Tue 9/15
9:50 pm-11:04 am
1 stop10h 14m
$456
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Fri 9/11
11:54 am-7:10 pm
1 stop10h 16m
Lihue
Tue 9/15
9:50 pm-11:04 am
1 stop10h 14m
$486
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Tue 7/28
2:05 pm-9:25 pm
1 stop10h 20m
Lihue
Thu 8/6
10:28 pm-11:14 am
1 stop9h 46m
$487
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Wed 7/15
2:05 pm-9:25 pm
1 stop10h 20m
Lihue
Mon 8/10
10:28 pm-11:14 am
1 stop9h 46m
$489
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, May is the cheapest month in which you can book a flight from Ontario to Kaua'i (average of $258). Flying from Ontario to Kaua'i in July is currently the most expensive (average of $518). 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 June 23, 2026.
Get a feel of what it's like to fly with Alaska Airlines and Southwest 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.
Entertainment
7.0
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
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 June 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Ontario to Kaua'i
Discover the top 2 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 June 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$341 | Average$569 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$471 | Average$588 | FlexibilityNo cancel fee | On-time63% |