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Kaua'i

$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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LIH
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
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Cheap 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 February 13, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/312:02 pm
ONT
-
LIH
1 stop12h 16m
Multiple Airlines
Tue 3/106:32 pm
LIH
-
ONT
1 stop23h 23m
Multiple Airlines
Deal found 2/10$312
This CheapOair deal was found by Cheapflights users on 2/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:30 am
ONT
-
LIH
1 stop24h 47m
Multiple Airlines
Wed 5/610:26 pm
LIH
-
ONT
1 stop13h 06m
Multiple Airlines
Deal found 2/11$328
This Southwest deal was found by Cheapflights users on 2/10. 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 3/37:20 am
ONT
-
LIH
1 stop11h 05m
Southwest
Tue 3/109:10 pm
LIH
-
ONT
2 stops10h 15m
Southwest
Deal found 2/10$344
This Travelocity deal was found by Cheapflights users on 2/11. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1312:01 pm
ONT
-
LIH
1 stop12h 25m
Alaska Airlines
Mon 5/1810:26 pm
LIH
-
ONT
1 stop9h 41m
Alaska Airlines
Deal found 2/11$346
This Kiwi.com deal was found by Cheapflights users on 2/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/178:45 am
ONT
-
LIH
1 stop13h 26m
Multiple Airlines
Tue 3/2412:26 pm
LIH
-
ONT
1 stop7h 33m
Multiple Airlines
Deal found 2/13$357
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/61:40 pm
ONT
-
LIH
1 stop11h 17m
United Airlines
Tue 3/1011:13 pm
LIH
-
ONT
1 stop10h 05m
United Airlines
Deal found 2/10$374
This Alaska Airlines deal was found by Cheapflights users on 2/12. 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.
Tue 3/178:45 am
ONT
-
LIH
1 stop13h 26m
Multiple Airlines
Mon 3/239:00 pm
LIH
-
ONT
1 stop22h 59m
Multiple Airlines
Deal found 2/12$381
This Delta deal was found by Cheapflights users on 2/10. 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.
Tue 3/36:00 am
ONT
-
LIH
2 stops15h 49m
Delta
Tue 3/1010:05 pm
LIH
-
ONT
2 stops15h 23m
Delta
Deal found 2/10$389
This Alaska Airlines deal was found by Cheapflights users on 2/11. 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.
Fri 2/278:41 am
ONT
-
LIH
1 stop10h 16m
Multiple Airlines
Wed 3/412:49 pm
LIH
-
ONT
1 stop7h 26m
Multiple Airlines
Deal found 2/11$390
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:32 am
ONT
-
LIH
1 stop8h 36m
Multiple Airlines
Mon 4/209:00 pm
LIH
-
ONT
1 stop22h 59m
Multiple Airlines
Deal found 2/10$391
This Alaska Airlines deal was found by Cheapflights users on 2/11. 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.
Tue 5/128:30 am
ONT
-
LIH
1 stop11h 02m
Multiple Airlines
Tue 5/1910:26 pm
LIH
-
ONT
1 stop9h 41m
Multiple Airlines
Deal found 2/11$400

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 February 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$312
(Kiwi.com)

One-way from

$151
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$380
Provider with most accurate pricing for Los Angeles-Lihue flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Lihue flights.
Search Deals
From Ontario to Kaua'i
Search Deals
One-way flight from Ontario to Kaua'i
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 13, 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

Fri 2/27

8:41 am-4:57 pm

1 stop10h 16m

Lihue

Wed 3/4

12:49 pm-10:15 pm

1 stop7h 26m

$390

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Sun 4/26

8:30 am-3:39 pm

1 stop10h 09m

Lihue

Sun 5/3

5:10 pm-9:10 pm

1 stop25h 00m

$407

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Sun 4/12

8:32 am-2:08 pm

1 stop8h 36m

Lihue

Thu 4/16

6:47 am-10:59 pm

1 stop13h 12m

$409

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Mon 3/9

8:45 am-10:22 pm

1 stop16h 37m

Lihue

Tue 3/17

8:52 am-8:55 pm

1 stop9h 03m

$418

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Tue 3/10

6:00 am-5:40 pm

1 stop14h 40m

Lihue

Tue 3/31

8:19 pm-5:13 pm

1 stop17h 54m

$420

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Mon 4/13

5:15 am-1:10 pm

2 stops10h 55m

Lihue

Mon 4/20

8:10 pm-9:50 am

1 stop10h 40m

$428

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Sun 5/10

8:30 am-7:21 pm

1 stop13h 51m

Lihue

Sun 5/17

10:26 pm-11:07 am

1 stop9h 41m

$441

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Mon 4/6

5:02 pm-3:15 pm

1 stop25h 13m

Lihue

Mon 4/13

9:30 pm-4:22 pm

1 stop15h 52m

$451

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Tue 3/10

6:00 am-5:40 pm

1 stop14h 40m

Lihue

Wed 4/1

8:19 pm-5:13 pm

1 stop17h 54m

$453

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Tue 3/10

8:45 am-10:22 pm

1 stop16h 37m

Lihue

Mon 3/16

10:27 am-8:55 pm

1 stop7h 28m

$454

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 19 results
1
2

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 $180). 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 February 13, 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
11,882 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

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
11,882 reviews
Alaska Airlines
8.0
Very good
11,882 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

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
4,284 reviews
Alaska Airlines
8.0
Very good
11,882 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

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
8,200 reviews
Alaska Airlines
8.0
Very good
11,882 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

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
9,289 reviews
Alaska Airlines
8.0
Very good
11,882 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

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?

    Delta can get you from Ontario to Kaua'i in just under 14h 40m. 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 $180). 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 February 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$216Average$326FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$361Average$610FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$377Average$616FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$393Average$640FlexibilityNo cancel feeOn-time69%

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