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Kaua'i

$162+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LIH
feb. 13 — feb. 201
vie. 2/13
vie. 2/20
1 adult, Economy
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Cheap 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 enero 14, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$323
(Alaska Airlines)

One-way from

$162
(Alaska Airlines)

Popular in

June

Cheapest in

February

Average price

$405
Provider with most accurate pricing for Los Angeles-Lihue flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Lihue flights.
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From Ontario to Kaua'i
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One-way flight from Ontario to Kaua'i
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Highest demand for flights based on searches. 13% potential increase in price ($76 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Ontario to Kaua'i

Cheapest flights from Ontario to Kaua'i
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 enero 14, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/12. 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.
mié. 5/1312:01 pm
ONT
-
LIH
1 stop12h 25m
Alaska Airlines
mié. 5/2012:02 pm
LIH
-
ONT
1 stop8h 54m
Alaska Airlines
Deal found 1/12$332
This Kiwi.com deal was found by Cheapflights users on 1/14. 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.
mar. 3/1012:02 pm
ONT
-
LIH
1 stop12h 16m
Multiple Airlines
mar. 3/179:00 pm
LIH
-
ONT
1 stop22h 59m
Multiple Airlines
Deal found 1/14$342
This Alaska Airlines deal was found by Cheapflights users on 1/13. 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.
lun. 3/212:02 pm
ONT
-
LIH
1 stop12h 16m
Multiple Airlines
jue. 3/58:52 am
LIH
-
ONT
1 stop11h 23m
Multiple Airlines
Deal found 1/13$359
This Alaska Airlines deal was found by Cheapflights users on 1/13. 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.
jue. 5/146:00 am
ONT
-
LIH
1 stop11h 39m
Alaska Airlines
mar. 5/1912:02 pm
LIH
-
ONT
1 stop8h 54m
Alaska Airlines
Deal found 1/13$363
This Alaska Airlines deal was found by Cheapflights users on 1/13. 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.
mié. 3/48:41 am
ONT
-
LIH
1 stop13h 47m
Multiple Airlines
mar. 3/106:48 am
LIH
-
ONT
1 stop11h 07m
Multiple Airlines
Deal found 1/13$368
This Kiwi.com deal was found by Cheapflights users on 1/14. 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.
lun. 3/28:41 am
ONT
-
LIH
1 stop11h 21m
Multiple Airlines
vie. 3/610:12 am
LIH
-
ONT
1 stop10h 03m
Multiple Airlines
Deal found 1/14$377
This Alaska Airlines deal was found by Cheapflights users on 1/14. 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.
sáb. 3/78:41 am
ONT
-
LIH
1 stop11h 21m
Multiple Airlines
mié. 3/116:48 am
LIH
-
ONT
1 stop11h 07m
Multiple Airlines
Deal found 1/14$384
This Alaska Airlines deal was found by Cheapflights users on 1/13. 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.
lun. 3/98:45 am
ONT
-
LIH
1 stop11h 17m
Multiple Airlines
mar. 3/177:45 pm
LIH
-
ONT
1 stop24h 14m
Multiple Airlines
Deal found 1/13$386
This Alaska Airlines deal was found by Cheapflights users on 1/12. 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.
jue. 3/1212:02 pm
ONT
-
LIH
1 stop12h 16m
Multiple Airlines
mar. 3/179:00 pm
LIH
-
ONT
1 stop22h 59m
Multiple Airlines
Deal found 1/12$390
This Alaska Airlines deal was found by Cheapflights users on 1/13. 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.
jue. 2/58:13 am
ONT
-
LIH
1 stop7h 43m
Multiple Airlines
mié. 2/117:28 am
LIH
-
ONT
1 stop13h 00m
Multiple Airlines
Deal found 1/13$408
This Alaska Airlines deal was found by Cheapflights users on 1/14. 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.
lun. 3/212:02 pm
ONT
-
LIH
1 stop12h 16m
Multiple Airlines
lun. 3/97:28 am
LIH
-
ONT
1 stop10h 27m
Multiple Airlines
Deal found 1/14$414
This Alaska Airlines deal was found by Cheapflights users on 1/14. 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.
sáb. 2/288:41 am
ONT
-
LIH
1 stop8h 40m
Multiple Airlines
lun. 3/910:19 pm
LIH
-
ONT
1 stop9h 49m
Multiple Airlines
Deal found 1/14$420

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 enero 14, 2026.
Use the filters below to find and compare flights from Ontario to Kaua'i that are best for you.

Fly from

Ontario

Fly to

Kaua'i

Route

Depart

Return

Price

OntarioLihue

ONT - LIH

ONTLIH

Ontario

lun. 3/2

12:02 pm-10:18 pm

1 stop12h 16m

Lihue

jue. 3/5

8:52 am-10:15 pm

1 stop11h 23m

$359

OntarioLihue

ONT - LIH

ONTLIH

Ontario

lun. 3/9

8:45 am-5:02 pm

1 stop11h 17m

Lihue

mar. 3/17

7:45 pm-10:59 pm

1 stop24h 14m

$386

OntarioLihue

ONT - LIH

ONTLIH

Ontario

jue. 2/5

8:13 am-1:56 pm

1 stop7h 43m

Lihue

mié. 2/11

7:28 am-10:28 pm

1 stop13h 00m

$408

OntarioLihue

ONT - LIH

ONTLIH

Ontario

jue. 2/19

1:50 pm-10:44 pm

1 stop10h 54m

Lihue

jue. 2/26

11:59 pm-12:38 pm

1 stop10h 39m

$411

OntarioLihue

ONT - LIH

ONTLIH

Ontario

sáb. 2/28

8:41 am-3:21 pm

1 stop8h 40m

Lihue

lun. 3/9

10:19 pm-11:08 am

1 stop9h 49m

$420

OntarioLihue

ONT - LIH

ONTLIH

Ontario

jue. 3/12

8:45 am-2:30 pm

1 stop8h 45m

Lihue

mar. 3/17

6:32 pm-10:59 pm

1 stop25h 27m

$441

OntarioLihue

ONT - LIH

ONTLIH

Ontario

lun. 2/16

8:41 am-3:21 pm

1 stop8h 40m

Lihue

mar. 2/17

11:19 pm-11:08 am

1 stop9h 49m

$441

OntarioLihue

ONT - LIH

ONTLIH

Ontario

jue. 3/5

6:15 am-1:08 pm

1 stop8h 53m

Lihue

mar. 3/10

11:13 pm-12:18 pm

1 stop10h 05m

$444

OntarioLihue

ONT - LIH

ONTLIH

Ontario

sáb. 2/21

8:41 am-4:03 pm

1 stop9h 22m

Lihue

sáb. 2/28

9:57 am-10:15 pm

1 stop10h 18m

$445

OntarioLihue

ONT - LIH

ONTLIH

Ontario

lun. 3/2

5:40 am-4:25 pm

2 stops12h 45m

Lihue

vie. 3/6

9:20 pm-7:30 am

1 stop8h 10m

$453

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

Showing 1-10 of 22 results
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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.
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

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 $173). Flying from Ontario to Kaua'i in June is currently the most expensive (average of $269). 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 enero 14, 2026.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
11,713 reviews

Entertainment

7.0

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,713 reviews
Alaska Airlines
8.0
Very good
11,713 reviews

Entertainment

7.0

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,258 reviews
Alaska Airlines
8.0
Very good
11,713 reviews

Entertainment

7.0

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,048 reviews
Alaska Airlines
8.0
Very good
11,713 reviews

Entertainment

7.0

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,163 reviews
Alaska Airlines
8.0
Very good
11,713 reviews

Entertainment

7.0

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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.

  • What airport do you fly from for flights from Ontario to Kaua'i?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Kaua'i. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

  • How long is the flight from Ontario to Kaua'i?

    United Airlines can get you from Ontario to Kaua'i in just under 10h 54m. Your travel time can differ by up to . There are 2657 mi between Ontario and Kaua'i.

  • What are the cheapest airlines to fly from Ontario to Kaua'i one-way?

    $175 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on United Airlines and Alaska Airlines, with prices starting from $186 and $213, respectively.

  • Can I find deals for flights from Ontario to Kaua'i that include hotel bookings?

    Yes. In addition to deals on Ontario to Kaua'i flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Kaua'i?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Kaua'i.

  • Can I find deals for business class flights from Ontario to Kaua'i?

    Yes. Cheapflights offers flight deals from Ontario to Kaua'i by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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 $173). Flying from Ontario to Kaua'i in June is currently the most expensive (average of $269). 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.

See more FAQs

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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.
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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 enero 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$230Average$352FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$393Average$640FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$404Average$607FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$406Average$643FlexibilityNo cancel feeOn-time75%

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