$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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LIH
Jun 5 — Jun 121
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
Cheapest
Best
Last-minute
One-way
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 May 6, 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 May 6, 2026.
This Delta deal was found by Cheapflights users on 5/1. 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 9/2211:55 am
ONT
- LIH
1 stop10h 25m
Delta
Tue 9/299:45 pm
LIH
- ONT
1 stop10h 29m
Delta
Deal found 5/1![Delta logo]()
$344
This Delta deal was found by Cheapflights users on 5/4. 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 08m
Delta
Thu 8/279:55 pm
LIH
- ONT
1 stop10h 24m
Delta
Deal found 5/4![Delta logo]()
$388
This Delta deal was found by Cheapflights users on 5/3. 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 8/2311:55 am
ONT
- LIH
1 stop10h 08m
Delta
Fri 8/289:55 pm
LIH
- ONT
2 stops15h 29m
Delta
Deal found 5/3![Delta logo]()
$394
This Delta deal was found by Cheapflights users on 5/3. 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 8/196:00 am
ONT
- LIH
2 stops16h 03m
Delta
Tue 8/259:55 pm
LIH
- ONT
2 stops11h 10m
Delta
Deal found 5/3![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 5/1. 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 5/276:45 am
ONT
- LIH
1 stop15h 21m
Delta
Thu 5/289:55 pm
LIH
- ONT
1 stop10h 17m
Delta
Deal found 5/1![Delta logo]()
$404
This United Airlines deal was found by Cheapflights users on 5/5. 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 8/311:44 pm
ONT
- LIH
1 stop9h 00m
United Airlines
Thu 9/310:55 pm
LIH
- ONT
1 stop10h 17m
United Airlines
Deal found 5/5![United Airlines logo]()
$410
This Delta deal was found by Cheapflights users on 5/4. 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 8/2011:55 am
ONT
- LIH
1 stop10h 08m
Delta
Tue 8/259:55 pm
LIH
- ONT
1 stop10h 24m
Delta
Deal found 5/4![Delta logo]()
$411
This Alaska Airlines deal was found by Cheapflights users on 5/1. 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.
Tue 7/282:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Wed 8/1210:28 pm
LIH
- ONT
1 stop9h 46m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$412
This Delta deal was found by Cheapflights users on 5/2. 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.
Mon 9/287:00 am
ONT
- LIH
1 stop15h 20m
Delta
Fri 10/99:45 pm
LIH
- ONT
2 stops15h 27m
Delta
Deal found 5/2![Delta logo]()
$417
This Delta deal was found by Cheapflights users on 5/2. 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.
Tue 9/299:55 am
ONT
- LIH
2 stops12h 25m
Delta
Wed 10/79:45 pm
LIH
- ONT
2 stops15h 27m
Delta
Deal found 5/2![Delta logo]()
$422
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 May 6, 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 May 6, 2026.
This Delta deal was found by Cheapflights users on 5/1. 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 9/226:00 am
ONT
- LIH
2 stops16h 20m
Delta
Tue 9/299:45 pm
LIH
- ONT
2 stops15h 29m
Delta
Deal found 5/1![Delta logo]()
$355
This Alaska Airlines deal was found by Cheapflights users on 5/1. 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 8/512:04 pm
ONT
- LIH
1 stop12h 21m
Alaska Airlines
Wed 8/1210:28 pm
LIH
- ONT
1 stop9h 46m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$411
This Alaska Airlines deal was found by Cheapflights users on 5/2. 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 7/99:11 am
ONT
- LIH
1 stop12h 38m
Multiple Airlines
Mon 7/1310:28 pm
LIH
- ONT
1 stop11h 41m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$520
This United Airlines deal was found by Cheapflights users on 5/4. 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 5/256:00 am
ONT
- LIH
1 stop10h 16m
United Airlines
Thu 5/2810:44 pm
LIH
- ONT
1 stop10h 28m
United Airlines
Deal found 5/4![United Airlines logo]()
$544
This Delta deal was found by Cheapflights users on 5/5. 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 8/2311:55 am
ONT
- LIH
1 stop10h 08m
Delta
Tue 8/259:55 pm
LIH
- ONT
1 stop10h 24m
Delta
Deal found 5/5![Delta logo]()
$388
This Delta deal was found by Cheapflights users on 5/3. 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 08m
Delta
Wed 8/269:55 pm
LIH
- ONT
1 stop10h 24m
Delta
Deal found 5/3![Delta logo]()
$388
This Alaska Airlines deal was found by Cheapflights users on 5/1. 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 8/1312:04 pm
ONT
- LIH
1 stop12h 21m
Alaska Airlines
Wed 8/269:35 pm
LIH
- ONT
1 stop10h 29m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$434
This Delta deal was found by Cheapflights users on 5/4. 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 9/911:55 am
ONT
- LIH
1 stop10h 25m
Delta
Wed 9/169:45 pm
LIH
- ONT
2 stops15h 29m
Delta
Deal found 5/4![Delta logo]()
$394
This United Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/236:00 am
ONT
- LIH
1 stop10h 16m
United Airlines
Mon 6/2910:00 pm
LIH
- ONT
2 stops11h 12m
United Airlines
Deal found 5/5![United Airlines logo]()
$545
This Alaska Airlines deal was found by Cheapflights users on 5/5. 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
Sun 8/210:28 pm
LIH
- ONT
1 stop9h 46m
Alaska Airlines
Deal found 5/5![Alaska Airlines logo]()
$554
This United Airlines deal was found by Cheapflights users on 5/1. 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.
Tue 5/266:00 am
ONT
- LIH
1 stop10h 16m
United Airlines
Sat 5/3010:44 pm
LIH
- ONT
1 stop10h 28m
United Airlines
Deal found 5/1![United Airlines logo]()
$555
This United Airlines deal was found by Cheapflights users on 5/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/251:50 pm
ONT
- LIH
1 stop8h 52m
United Airlines
Wed 6/310:44 pm
LIH
- ONT
1 stop10h 28m
United Airlines
Deal found 5/2![United Airlines logo]()
$567
Last-minute flights from Ontario to Kaua'iDiscover last-minute flight deals from Ontario to Kaua'i. Data last updated May 6, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Kaua'i. Data last updated May 6, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/119:33 am
ONT
- LIH
1 stop8h 42m
American Airlines
Mon 5/189:30 pm
LIH
- ONT
1 stop11h 04m
American Airlines
Deal found 5/4![American Airlines logo]()
$444
This Delta deal was found by Cheapflights users on 5/1. 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 5/246:45 am
ONT
- LIH
1 stop15h 21m
Delta
Thu 5/289:55 pm
LIH
- ONT
1 stop10h 17m
Delta
Deal found 5/1![Delta logo]()
$449
This Delta deal was found by Cheapflights users on 5/1. 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 5/261:35 pm
ONT
- LIH
1 stop32h 31m
Delta
Thu 5/289:55 pm
LIH
- ONT
1 stop10h 17m
Delta
Deal found 5/1![Delta logo]()
$454
This Delta deal was found by Cheapflights users on 5/1. 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 5/276:45 am
ONT
- LIH
1 stop15h 21m
Delta
Thu 5/289:55 pm
LIH
- ONT
1 stop10h 17m
Delta
Deal found 5/1![Delta logo]()
$404
This Alaska Airlines deal was found by Cheapflights users on 5/4. 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
Wed 6/312:02 pm
LIH
- ONT
1 stop8h 54m
Alaska Airlines
Deal found 5/4![Alaska Airlines logo]()
$434
This Delta deal was found by Cheapflights users on 5/3. 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 5/2711:52 am
ONT
- LIH
1 stop10h 14m
Delta
Tue 6/29:55 pm
LIH
- ONT
2 stops15h 22m
Delta
Deal found 5/3![Delta logo]()
$440
This Delta deal was found by Cheapflights users on 5/1. 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 5/276:45 am
ONT
- LIH
1 stop15h 21m
Delta
Wed 6/39:55 pm
LIH
- ONT
1 stop16h 13m
Delta
Deal found 5/1![Delta logo]()
$464
This Alaska Airlines deal was found by Cheapflights users on 5/4. 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
Multiple Airlines
Thu 6/411:10 am
LIH
- ONT
1 stop8h 07m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$475
This Trip.com deal was found by Cheapflights users on 5/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:04 pm
ONT
- LIH
1 stop12h 22m
Alaska Airlines
Wed 6/310:26 pm
LIH
- ONT
1 stop9h 44m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$473
This Delta deal was found by Cheapflights users on 5/3. 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 5/296:00 am
ONT
- LIH
2 stops16h 06m
Delta
Tue 6/29:55 pm
LIH
- ONT
2 stops15h 22m
Delta
Deal found 5/3![Delta logo]()
$445
This United Airlines deal was found by Cheapflights users on 5/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/41:50 pm
ONT
- LIH
1 stop8h 52m
United Airlines
Mon 6/810:44 pm
LIH
- ONT
1 stop10h 28m
United Airlines
Deal found 5/2![United Airlines logo]()
$448
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 May 6, 2026.
Search for one-way flight options from Ontario to Kaua'i. Find affordable one-way fares based on user searches. Data last updated May 6, 2026.
This Trip.com deal was found by Cheapflights users on 5/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/112:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$190
This Trip.com deal was found by Cheapflights users on 5/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/109:11 am
ONT
- LIH
1 stop11h 33m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$209
This Trip.com deal was found by Cheapflights users on 5/3. 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.
Wed 8/52:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Deal found 5/3![Alaska Airlines logo]()
$213
This Alaska Airlines deal was found by Cheapflights users on 5/1. 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.
Tue 7/142:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$217
This Delta deal was found by Cheapflights users on 5/3. 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 5/286:00 am
ONT
- LIH
2 stops16h 06m
Delta
Deal found 5/3![Delta logo]()
$228
This United Airlines deal was found by Cheapflights users on 5/5. 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 6/101:50 pm
ONT
- LIH
1 stop8h 52m
United Airlines
Deal found 5/5![United Airlines logo]()
$230
This United Airlines deal was found by Cheapflights users on 5/4. 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 8/231:44 pm
ONT
- LIH
1 stop9h 00m
United Airlines
Deal found 5/4![United Airlines logo]()
$249
This Alaska Airlines deal was found by Cheapflights users on 5/4. 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 8/39:11 am
ONT
- LIH
1 stop8h 20m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$258
This Alaska Airlines deal was found by Cheapflights users on 5/4. 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
Deal found 5/4![Alaska Airlines logo]()
$262
This Southwest deal was found by Cheapflights users on 4/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:40 am
ONT
- LIH
2 stops11h 35m
Southwest
Deal found 4/30![Southwest logo]()
$264
This United Airlines deal was found by Cheapflights users on 5/3. 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 5/241:50 pm
ONT
- LIH
1 stop8h 52m
United Airlines
Deal found 5/3![United Airlines logo]()
$272
This Delta deal was found by Cheapflights users on 5/4. 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 6/16:45 am
ONT
- LIH
1 stop15h 19m
Delta
Deal found 5/4![Delta logo]()
$277
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 May 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $344 (Delta) |
One-way from | $190 (Trip.com) |
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 May 6, 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 9/22
6:00 am-7:20 pm
2 stops16h 20m
Lihue
Tue 9/29
9:45 pm-4:14 pm
2 stops15h 29m
$355
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Sun 8/23
11:55 am-7:03 pm
1 stop10h 08m
Lihue
Tue 8/25
9:55 pm-11:19 am
1 stop10h 24m
$388
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Mon 8/17
11:55 am-7:03 pm
1 stop10h 08m
Lihue
Wed 8/26
9:55 pm-11:19 am
1 stop10h 24m
$388
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Wed 9/9
11:55 am-7:20 pm
1 stop10h 25m
Lihue
Wed 9/16
9:45 pm-4:14 pm
2 stops15h 29m
$394
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Wed 8/5
12:04 pm-9:25 pm
1 stop12h 21m
Lihue
Wed 8/12
10:28 pm-11:14 am
1 stop9h 46m
$411
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Thu 8/13
12:04 pm-9:25 pm
1 stop12h 21m
Lihue
Wed 8/26
9:35 pm-11:04 am
1 stop10h 29m
$434
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Thu 7/9
9:11 am-6:49 pm
1 stop12h 38m
Lihue
Mon 7/13
10:28 pm-1:09 pm
1 stop11h 41m
$520
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Mon 5/25
6:00 am-1:16 pm
1 stop10h 16m
Lihue
Thu 5/28
10:44 pm-12:12 pm
1 stop10h 28m
$544
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Tue 6/23
6:00 am-1:16 pm
1 stop10h 16m
Lihue
Mon 6/29
10:00 pm-12:12 pm
2 stops11h 12m
$545
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Mon 7/27
2:05 pm-9:25 pm
1 stop10h 20m
Lihue
Sun 8/2
10:28 pm-11:14 am
1 stop9h 46m
$554
Showing 1-10 of 23 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 May 6, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Southwest, 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.
Comfort
7.8
Entertainment
7.0
Food
7.1
Crew
8.5
Overall
7.9
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Entertainment
7.0
Food
7.1
Crew
8.5
Overall
7.9
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Entertainment
7.0
Food
7.1
Crew
8.5
Overall
7.9
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Entertainment
7.0
Food
7.1
Crew
8.5
Overall
7.9
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Entertainment
7.0
Food
7.1
Crew
8.5
Overall
7.9
Boarding
8.1
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.
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
Other flight options
Popular flights
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 May 6, 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 May 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$236 | Average$492 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$258 | Average$646 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$352 | Average$561 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$409 | Average$588 | FlexibilityNo cancel fee | On-time63% |