$176+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LIH
Apr 11 — Apr 181
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 March 12, 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 March 12, 2026.
This Delta deal was found by Cheapflights users on 3/11. 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 4/217:00 am
ONT
- LIH
1 stop13h 40m
Delta
Thu 4/238:20 pm
LIH
- ONT
1 stop14h 19m
Delta
Deal found 3/11![Delta logo]()
$358
This Delta deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:00 am
ONT
- LIH
1 stop13h 40m
Delta
Tue 4/288:20 pm
LIH
- ONT
1 stop14h 19m
Delta
Deal found 3/11![Delta logo]()
$370
This Southwest deal was found by Cheapflights users on 3/10. 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 4/2111:05 am
ONT
- LIH
1 stop8h 05m
Southwest
Fri 4/249:10 pm
LIH
- ONT
1 stop12h 05m
Southwest
Deal found 3/10![Southwest logo]()
$374
This Alaska Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:30 am
ONT
- LIH
1 stop9h 05m
Multiple Airlines
Wed 4/296:40 pm
LIH
- ONT
1 stop23h 30m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$379
This CheapOair deal was found by Cheapflights users on 3/7. 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.
Wed 4/2210:39 am
ONT
- LIH
1 stop13h 47m
Alaska Airlines
Mon 4/2710:26 pm
LIH
- ONT
1 stop13h 06m
Alaska Airlines
Deal found 3/7![Alaska Airlines logo]()
$387
This Alaska Airlines deal was found by Cheapflights users on 3/11. 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 5/1412:04 pm
ONT
- LIH
1 stop12h 22m
Alaska Airlines
Tue 5/1910:26 pm
LIH
- ONT
1 stop9h 46m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$389
This Southwest deal was found by Cheapflights users on 3/10. 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 4/2911:05 am
ONT
- LIH
1 stop8h 05m
Southwest
Sun 5/37:10 pm
LIH
- ONT
2 stops10h 35m
Southwest
Deal found 3/10![Southwest logo]()
$390
This Delta deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:00 am
ONT
- LIH
1 stop13h 40m
Delta
Tue 5/58:20 pm
LIH
- ONT
1 stop11h 53m
Delta
Deal found 3/10![Delta logo]()
$398
This Delta deal was found by Cheapflights users on 3/11. 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 4/155:55 pm
ONT
- LIH
1 stop26h 45m
Delta
Tue 4/288:20 pm
LIH
- ONT
1 stop14h 19m
Delta
Deal found 3/11![Delta logo]()
$404
This United Airlines deal was found by Cheapflights users on 3/11. 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.
Sat 4/181:27 pm
ONT
- LIH
1 stop9h 26m
United Airlines
Sat 4/2511:00 pm
LIH
- ONT
1 stop10h 20m
United Airlines
Deal found 3/11![United Airlines logo]()
$406
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 March 12, 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 March 12, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:30 am
ONT
- LIH
1 stop9h 05m
Multiple Airlines
Wed 4/297:55 pm
LIH
- ONT
1 stop22h 15m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$381
This Southwest deal was found by Cheapflights users on 3/8. 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 3/246:15 am
ONT
- LIH
2 stops13h 15m
Southwest
Mon 3/309:10 pm
LIH
- ONT
1 stop13h 15m
Southwest
Deal found 3/8![Southwest logo]()
$466
This Alaska Airlines deal was found by Cheapflights users on 3/7. 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 7/62:09 pm
ONT
- LIH
1 stop10h 16m
Alaska Airlines
Mon 7/1310:25 pm
LIH
- ONT
1 stop9h 49m
Alaska Airlines
Deal found 3/7![Alaska Airlines logo]()
$478
This Delta deal was found by Cheapflights users on 3/11. 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 7/307:00 am
ONT
- LIH
1 stop15h 20m
Delta
Mon 8/39:45 pm
LIH
- ONT
1 stop10h 29m
Delta
Deal found 3/11![Delta logo]()
$521
This United Airlines deal was found by Cheapflights users on 3/9. 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 4/206:00 am
ONT
- LIH
1 stop8h 23m
United Airlines
Mon 4/2711:00 pm
LIH
- ONT
1 stop7h 56m
United Airlines
Deal found 3/9![United Airlines logo]()
$544
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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 4/128:32 am
ONT
- LIH
1 stop28h 57m
Multiple Airlines
Sun 4/196:47 am
LIH
- ONT
1 stop13h 12m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$517
This Delta deal was found by Cheapflights users on 3/11. 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 7/157:00 am
ONT
- LIH
1 stop15h 20m
Delta
Tue 7/289:45 pm
LIH
- ONT
1 stop12h 04m
Delta
Deal found 3/11![Delta logo]()
$546
This Alaska Airlines deal was found by Cheapflights users on 3/7. 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 6/282:09 pm
ONT
- LIH
1 stop10h 16m
Alaska Airlines
Sun 7/510:25 pm
LIH
- ONT
1 stop9h 49m
Alaska Airlines
Deal found 3/7![Alaska Airlines logo]()
$584
This Alaska Airlines deal was found by Cheapflights users on 3/7. 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 5/93:26 pm
ONT
- LIH
2 stops20h 00m
Multiple Airlines
Sat 5/1610:26 pm
LIH
- ONT
1 stop9h 44m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$559
This Delta deal was found by Cheapflights users on 3/11. 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 7/287:00 am
ONT
- LIH
1 stop15h 20m
Delta
Fri 8/79:45 pm
LIH
- ONT
1 stop21h 55m
Delta
Deal found 3/11![Delta logo]()
$580
This Delta deal was found by Cheapflights users on 3/9. 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 7/317:00 am
ONT
- LIH
1 stop15h 20m
Delta
Thu 8/69:45 pm
LIH
- ONT
1 stop12h 04m
Delta
Deal found 3/9![Delta logo]()
$584
Last-minute flights from Ontario to Kaua'iDiscover last-minute flight deals from Ontario to Kaua'i. Data last updated March 12, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Kaua'i. Data last updated March 12, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 3/11. 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 4/155:55 pm
ONT
- LIH
1 stop26h 45m
Delta
Tue 4/288:20 pm
LIH
- ONT
1 stop14h 19m
Delta
Deal found 3/11![Delta logo]()
$404
This Delta deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:00 am
ONT
- LIH
1 stop13h 40m
Delta
Tue 4/288:20 pm
LIH
- ONT
1 stop14h 19m
Delta
Deal found 3/11![Delta logo]()
$370
This United Airlines deal was found by Cheapflights users on 3/11. 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.
Sat 4/181:27 pm
ONT
- LIH
1 stop9h 26m
United Airlines
Sat 4/2511:00 pm
LIH
- ONT
1 stop10h 20m
United Airlines
Deal found 3/11![United Airlines logo]()
$406
This Delta deal was found by Cheapflights users on 3/11. 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 4/217:00 am
ONT
- LIH
1 stop13h 40m
Delta
Thu 4/238:20 pm
LIH
- ONT
1 stop14h 19m
Delta
Deal found 3/11![Delta logo]()
$358
This Southwest deal was found by Cheapflights users on 3/10. 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 4/2111:05 am
ONT
- LIH
1 stop8h 05m
Southwest
Fri 4/249:10 pm
LIH
- ONT
1 stop12h 05m
Southwest
Deal found 3/10![Southwest logo]()
$374
This CheapOair deal was found by Cheapflights users on 3/7. 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.
Wed 4/2210:39 am
ONT
- LIH
1 stop13h 47m
Alaska Airlines
Mon 4/2710:26 pm
LIH
- ONT
1 stop13h 06m
Alaska Airlines
Deal found 3/7![Alaska Airlines logo]()
$387
This Alaska Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:30 am
ONT
- LIH
1 stop9h 05m
Multiple Airlines
Wed 4/296:40 pm
LIH
- ONT
1 stop23h 30m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 3/10. 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 4/2911:05 am
ONT
- LIH
1 stop8h 05m
Southwest
Sun 5/37:10 pm
LIH
- ONT
2 stops10h 35m
Southwest
Deal found 3/10![Southwest logo]()
$390
This Delta deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:00 am
ONT
- LIH
1 stop13h 40m
Delta
Tue 5/58:20 pm
LIH
- ONT
1 stop11h 53m
Delta
Deal found 3/10![Delta logo]()
$398
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 March 12, 2026.
Search for one-way flight options from Ontario to Kaua'i. Find affordable one-way fares based on user searches. Data last updated March 12, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/8. 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
Deal found 3/8![Alaska Airlines logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Wed 4/810:03 pm
ONT
- LIH
3 stops35h 14m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$195
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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 4/178:32 am
ONT
- LIH
1 stop8h 36m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$204
This Alaska Airlines deal was found by Cheapflights users on 3/10. 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 4/278:30 am
ONT
- LIH
1 stop13h 51m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$207
This Delta deal was found by Cheapflights users on 3/7. 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 5/811:52 am
ONT
- LIH
1 stop10h 14m
Delta
Deal found 3/7![Delta logo]()
$208
This Alaska Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/118:32 am
ONT
- LIH
1 stop27h 47m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$210
This Alaska Airlines deal was found by Cheapflights users on 3/10. 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 5/1412:04 pm
ONT
- LIH
1 stop12h 22m
Alaska Airlines
Deal found 3/10![Alaska Airlines logo]()
$211
This United Airlines deal was found by Cheapflights users on 3/9. 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 4/146:00 am
ONT
- LIH
1 stop8h 23m
United Airlines
Deal found 3/9![United Airlines logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Tue 4/1412:59 am
ONT
- LIH
3 stops24h 22m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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 8/172:09 pm
ONT
- LIH
1 stop10h 16m
Alaska Airlines
Deal found 3/9![Alaska Airlines logo]()
$220
This flugladen.de deal was found by Cheapflights users on 3/11. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/268:00 am
ONT
- LIH
1 stop10h 04m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$224
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 March 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $358 (Delta) |
One-way from | $176 (Alaska Airlines) |
Popular in | June |
Cheapest in | February |
Average price | $457 |
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 March 12, 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
8:30 am-2:35 pm
1 stop9h 05m
Lihue
Wed 4/29
7:55 pm-9:10 pm
1 stop22h 15m
$381
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Tue 3/24
6:15 am-4:30 pm
2 stops13h 15m
Lihue
Mon 3/30
9:10 pm-1:25 pm
1 stop13h 15m
$466
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Mon 7/6
2:09 pm-9:25 pm
1 stop10h 16m
Lihue
Mon 7/13
10:25 pm-11:14 am
1 stop9h 49m
$478
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Sun 4/12
8:32 am-10:29 am
1 stop28h 57m
Lihue
Sun 4/19
6:47 am-10:59 pm
1 stop13h 12m
$517
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Thu 7/30
7:00 am-7:20 pm
1 stop15h 20m
Lihue
Mon 8/3
9:45 pm-11:14 am
1 stop10h 29m
$521
Quickest round-trip
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Mon 4/20
6:00 am-11:23 am
1 stop8h 23m
Lihue
Mon 4/27
11:00 pm-9:56 am
1 stop7h 56m
$544
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Wed 7/15
7:00 am-7:20 pm
1 stop15h 20m
Lihue
Tue 7/28
9:45 pm-12:49 pm
1 stop12h 04m
$546
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Sat 5/9
3:26 pm-8:26 am
2 stops20h 00m
Lihue
Sat 5/16
10:26 pm-11:10 am
1 stop9h 44m
$559
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Tue 7/28
7:00 am-7:20 pm
1 stop15h 20m
Lihue
Fri 8/7
9:45 pm-10:40 pm
1 stop21h 55m
$580
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Sun 6/28
2:09 pm-9:25 pm
1 stop10h 16m
Lihue
Sun 7/5
10:25 pm-11:14 am
1 stop9h 49m
$584
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, 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 $274). 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 March 12, 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
Crew
8.5
Entertainment
7.0
Overall
8.0
Food
7.1
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Crew
8.5
Entertainment
7.0
Overall
8.0
Food
7.1
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Crew
8.5
Entertainment
7.0
Overall
8.0
Food
7.1
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Crew
8.5
Entertainment
7.0
Overall
8.0
Food
7.1
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Crew
8.5
Entertainment
7.0
Overall
8.0
Food
7.1
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 March 12, 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 March 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$216 | Average$352 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$361 | Average$590 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$377 | Average$598 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$393 | Average$596 | FlexibilityNo cancel fee | On-time69% |