$151+ 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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LIH
Jul 10 — Jul 171
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 10, 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 10, 2026.
This Delta deal was found by Cheapflights users on 6/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:56 am
ONT
- LIH
1 stop10h 20m
Delta
Thu 9/109:45 pm
LIH
- ONT
1 stop10h 29m
Delta
Deal found 6/8![Delta logo]()
$302
This Delta deal was found by Cheapflights users on 6/9. 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.
Wed 11/411:55 am
ONT
- LIH
1 stop10h 27m
Delta
Mon 11/910:45 pm
LIH
- ONT
1 stop10h 31m
Delta
Deal found 6/9![Delta logo]()
$336
This American Airlines deal was found by Cheapflights users on 6/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/147:30 pm
ONT
- LIH
1 stop22h 24m
American Airlines
Wed 11/1810:44 pm
LIH
- ONT
1 stop11h 19m
American Airlines
Deal found 6/9![American Airlines logo]()
$361
This Delta deal was found by Cheapflights users on 6/9. 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.
Tue 11/311:55 am
ONT
- LIH
1 stop10h 27m
Delta
Tue 11/1710:45 pm
LIH
- ONT
1 stop16h 32m
Delta
Deal found 6/9![Delta logo]()
$363
This Priceline deal was found by Cheapflights users on 6/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1112:04 pm
ONT
- LIH
1 stop12h 21m
Alaska Airlines
Tue 8/1810:28 pm
LIH
- ONT
1 stop9h 36m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$370
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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.
Mon 8/179:11 am
ONT
- LIH
1 stop13h 20m
Multiple Airlines
Tue 9/19:35 pm
LIH
- ONT
1 stop10h 29m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 6/7. 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.
Sun 8/3011:56 am
ONT
- LIH
1 stop10h 20m
Delta
Fri 9/119:45 pm
LIH
- ONT
1 stop10h 29m
Delta
Deal found 6/7![Delta logo]()
$408
This Southwest deal was found by Cheapflights users on 6/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:00 am
ONT
- LIH
1 stop9h 15m
Southwest
Tue 9/159:25 pm
LIH
- ONT
1 stop13h 10m
Southwest
Deal found 6/9![Southwest logo]()
$409
This Priceline deal was found by Cheapflights users on 6/9. 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 Priceline 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
Wed 8/1210:28 pm
LIH
- ONT
1 stop11h 41m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$412
This Delta deal was found by Cheapflights users on 6/9. 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.
Thu 9/1011:55 am
ONT
- LIH
1 stop10h 25m
Delta
Thu 9/179:50 pm
LIH
- ONT
1 stop10h 14m
Delta
Deal found 6/9![Delta logo]()
$413
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 10, 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 10, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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.
Mon 8/179:11 am
ONT
- LIH
1 stop7h 47m
Multiple Airlines
Thu 8/279:35 pm
LIH
- ONT
1 stop10h 29m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$427
This Delta deal was found by Cheapflights users on 6/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:00 am
ONT
- LIH
1 stop15h 22m
Delta
Mon 11/910:45 pm
LIH
- ONT
1 stop10h 31m
Delta
Deal found 6/8![Delta logo]()
$447
This Alaska Airlines deal was found by Cheapflights users on 6/7. 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.
Thu 8/62:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Wed 8/269:35 pm
LIH
- ONT
1 stop10h 29m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$466
This United Airlines deal was found by Cheapflights users on 6/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:00 am
ONT
- LIH
1 stop8h 50m
United Airlines
Mon 8/1010:44 pm
LIH
- ONT
1 stop10h 28m
United Airlines
Deal found 6/8![United Airlines logo]()
$473
This Southwest deal was found by Cheapflights users on 6/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/28:00 am
ONT
- LIH
1 stop13h 05m
Southwest
Fri 10/96:15 am
LIH
- ONT
1 stop11h 30m
Southwest
Deal found 6/5![Southwest logo]()
$502
This Delta deal was found by Cheapflights users on 6/9. 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.
Sun 7/2611:59 am
ONT
- LIH
1 stop9h 59m
Delta
Thu 7/309:55 pm
LIH
- ONT
1 stop10h 22m
Delta
Deal found 6/9![Delta logo]()
$454
This Alaska Airlines deal was found by Cheapflights users on 6/6. 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 11/177:20 am
ONT
- LIH
1 stop11h 41m
Multiple Airlines
Wed 11/2511:31 pm
LIH
- ONT
1 stop9h 38m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$485
This Alaska Airlines deal was found by Cheapflights users on 6/7. 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 10/207:00 am
ONT
- LIH
1 stop17h 57m
Multiple Airlines
Wed 10/219:27 am
LIH
- ONT
2 stops8h 55m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$505
This Delta deal was found by Cheapflights users on 6/9. 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.
Tue 6/305:59 pm
ONT
- LIH
1 stop28h 03m
Delta
Wed 7/89:55 pm
LIH
- ONT
1 stop10h 22m
Delta
Deal found 6/9![Delta logo]()
$520
This Delta deal was found by Cheapflights users on 6/7. 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.
Wed 7/16:00 am
ONT
- LIH
2 stops16h 02m
Delta
Wed 7/89:55 pm
LIH
- ONT
2 stops11h 15m
Delta
Deal found 6/7![Delta logo]()
$530
Last-minute flights from Ontario to Kaua'iDiscover last-minute flight deals from Ontario to Kaua'i. Data last updated June 10, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Kaua'i. Data last updated June 10, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 6/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/710:54 am
ONT
- LIH
1 stop27h 14m
Multiple Airlines
Tue 7/1412:31 pm
LIH
- ONT
1 stop19h 43m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$455
This flugladen.de deal was found by Cheapflights users on 6/6. 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.
Tue 7/72:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Tue 7/1410:28 pm
LIH
- ONT
1 stop9h 46m
Alaska Airlines
Deal found 6/6![Alaska Airlines logo]()
$474
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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.
Tue 7/72:05 pm
ONT
- LIH
1 stop10h 20m
Multiple Airlines
Wed 7/2212:23 pm
LIH
- ONT
1 stop8h 29m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$489
This Alaska Airlines deal was found by Cheapflights users on 6/6. 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 7/82:05 pm
ONT
- LIH
1 stop10h 20m
Alaska Airlines
Tue 7/1410:28 pm
LIH
- ONT
1 stop9h 46m
Alaska Airlines
Deal found 6/6![Alaska Airlines logo]()
$453
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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.
Wed 7/82:05 pm
ONT
- LIH
1 stop10h 20m
Multiple Airlines
Thu 7/2312:23 pm
LIH
- ONT
1 stop8h 29m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$454
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 Kiwi.com 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
Multiple Airlines
Fri 7/2412:23 pm
LIH
- ONT
1 stop8h 29m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$431
This Travelocity deal was found by Cheapflights users on 6/9. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1810:54 am
ONT
- LIH
1 stop27h 14m
Multiple Airlines
Mon 7/2710:28 pm
LIH
- ONT
1 stop11h 41m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$493
This Priceline deal was found by Cheapflights users on 6/7. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/199:11 am
ONT
- LIH
1 stop9h 27m
Multiple Airlines
Tue 7/2810:28 pm
LIH
- ONT
1 stop9h 46m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$485
This United Airlines deal was found by Cheapflights users on 6/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/211:50 pm
ONT
- LIH
1 stop8h 52m
United Airlines
Tue 7/2810:00 pm
LIH
- ONT
2 stops11h 12m
United Airlines
Deal found 6/8![United Airlines logo]()
$460
This Gotogate deal was found by Cheapflights users on 6/7. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2610:54 am
ONT
- LIH
1 stop27h 14m
Multiple Airlines
Thu 7/3010:28 pm
LIH
- ONT
1 stop9h 46m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$458
This Priceline deal was found by Cheapflights users on 6/10. 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 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
Fri 8/710:28 pm
LIH
- ONT
1 stop11h 41m
Alaska Airlines
Deal found 6/10![Alaska 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 10, 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 10, 2026.
This Delta deal was found by Cheapflights users on 6/10. 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.
Sun 8/911:56 am
ONT
- LIH
1 stop10h 20m
Delta
Deal found 6/10![Delta logo]()
$151
This Delta deal was found by Cheapflights users on 6/9. 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.
Mon 8/176:00 am
ONT
- LIH
2 stops16h 16m
Delta
Deal found 6/9![Delta logo]()
$157
This Priceline deal was found by Cheapflights users on 6/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/179:11 am
ONT
- LIH
1 stop14h 02m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$181
This Priceline deal was found by Cheapflights users on 6/9. 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 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 6/9![Alaska Airlines logo]()
$185
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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.
Tue 8/189:11 am
ONT
- LIH
1 stop26h 17m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$187
This Booking.com deal was found by Cheapflights users on 6/9. 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 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 6/9![Multiple Airlines logo]()
$194
This Delta deal was found by Cheapflights users on 6/9. 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 8/216:00 am
ONT
- LIH
2 stops16h 16m
Delta
Deal found 6/9![Delta logo]()
$196
This Priceline deal was found by Cheapflights users on 6/8. 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 Priceline 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 6/8![Alaska Airlines logo]()
$204
This United Airlines deal was found by Cheapflights users on 6/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/101:50 pm
ONT
- LIH
1 stop8h 52m
United Airlines
Deal found 6/8![United Airlines logo]()
$206
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 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $302 (Delta) |
One-way from | $188 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $615 |
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 10, 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
Mon 8/17
9:11 am-1:58 pm
1 stop7h 47m
Lihue
Thu 8/27
9:35 pm-11:04 am
1 stop10h 29m
$427
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Wed 11/4
7:00 am-8:22 pm
1 stop15h 22m
Lihue
Mon 11/9
10:45 pm-11:16 am
1 stop10h 31m
$447
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Sun 7/26
11:59 am-6:58 pm
1 stop9h 59m
Lihue
Thu 7/30
9:55 pm-11:17 am
1 stop10h 22m
$454
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Thu 8/6
2:05 pm-9:25 pm
1 stop10h 20m
Lihue
Wed 8/26
9:35 pm-11:04 am
1 stop10h 29m
$466
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Wed 8/5
6:00 am-11:50 am
1 stop8h 50m
Lihue
Mon 8/10
10:44 pm-12:12 pm
1 stop10h 28m
$473
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Tue 11/17
7:20 am-5:01 pm
1 stop11h 41m
Lihue
Wed 11/25
11:31 pm-11:09 am
1 stop9h 38m
$485
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Fri 10/2
8:00 am-6:05 pm
1 stop13h 05m
Lihue
Fri 10/9
6:15 am-8:45 pm
1 stop11h 30m
$502
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Tue 10/20
7:00 am-9:57 pm
1 stop17h 57m
Lihue
Wed 10/21
9:27 am-9:22 pm
2 stops8h 55m
$505
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Tue 6/30
5:59 pm-7:02 pm
1 stop28h 03m
Lihue
Wed 7/8
9:55 pm-11:17 am
1 stop10h 22m
$520
OntarioLihue
ONT - LIH
ONTLIH
Ontario
Wed 7/1
6:00 am-7:02 pm
2 stops16h 02m
Lihue
Wed 7/8
9:55 pm-12:10 pm
2 stops11h 15m
$530
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 10, 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.
Crew
8.5
Food
7.0
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Food
7.0
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Food
7.0
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
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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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 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$341 | Average$569 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$471 | Average$590 | FlexibilityNo cancel fee | On-time63% |