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Kaua'i

$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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LIH
Dec 24 — Dec 311
Wed 12/24
Wed 12/31
1 adult, Economy
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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 November 24, 2025.

This Delta deal was found by Cheapflights users on 11/24. 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 12/156:00 amONT - LIH
2 stops16h 10mDelta
Mon 12/229:20 pmLIH - ONT
1 stop11h 42mDelta
Deal found 11/24$538
This American Airlines deal was found by Cheapflights users on 11/22. 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 12/86:17 amONT - LIH
1 stop11h 31mAmerican Airlines
Fri 12/1210:44 pmLIH - ONT
1 stop8h 09mAmerican Airlines
Deal found 11/22$561
This Delta deal was found by Cheapflights users on 11/23. 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 12/96:00 amONT - LIH
2 stops16h 10mDelta
Sat 12/139:50 pmLIH - ONT
1 stop11h 23mDelta
Deal found 11/23$569
This Alaska Airlines deal was found by Cheapflights users on 11/23. 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 12/97:00 amONT - LIH
1 stop9h 30mAlaska Airlines
Sat 12/136:00 amLIH - ONT
1 stop12h 23mAlaska Airlines
Deal found 11/23$584
This Alaska Airlines deal was found by Cheapflights users on 11/24. 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 12/107:00 amONT - LIH
1 stop9h 30mAlaska Airlines
Sun 12/1411:58 amLIH - ONT
1 stop7h 45mAlaska Airlines
Deal found 11/24$586
This Alaska Airlines deal was found by Cheapflights users on 11/24. 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 12/167:00 amONT - LIH
1 stop8h 09mAlaska Airlines
Mon 12/2910:30 amLIH - ONT
1 stop9h 38mAlaska Airlines
Deal found 11/24$588
This Alaska Airlines deal was found by Cheapflights users on 11/24. 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 12/136:00 amONT - LIH
1 stop11h 51mAlaska Airlines
Wed 12/247:26 amLIH - ONT
1 stop12h 42mAlaska Airlines
Deal found 11/24$589
This Alaska Airlines deal was found by Cheapflights users on 11/22. 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 11/277:50 amONT - LIH
1 stop8h 21mAlaska Airlines
Mon 12/111:32 pmLIH - ONT
1 stop9h 47mAlaska Airlines
Deal found 11/22$593
This Alaska Airlines deal was found by Cheapflights users on 11/22. 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 11/257:50 amONT - LIH
1 stop8h 21mAlaska Airlines
Thu 11/271:20 pmLIH - ONT
1 stop20h 48mAlaska Airlines
Deal found 11/22$598
This Alaska Airlines deal was found by Cheapflights users on 11/23. 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 11/287:50 amONT - LIH
1 stop8h 21mAlaska Airlines
Fri 12/59:28 amLIH - ONT
1 stop8h 55mAlaska Airlines
Deal found 11/23$599
This Southwest deal was found by Cheapflights users on 11/22. 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.
Mon 11/245:25 amONT - LIH
1 stop9h 50mSouthwest
Wed 11/2610:00 amLIH - ONT
1 stop9h 20mSouthwest
Deal found 11/22$600

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 November 24, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$319
(Alaska Airlines)

One-way from

$176
(Alaska Airlines)

Popular in

June

Cheapest in

January

Average price

$472
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. 15% potential increase in price ($82 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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 November 24, 2025.
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

Wed 5/6

11:55 am-7:20 pm

1 stop10h 25m

Lihue

Tue 5/12

9:45 pm-12:49 pm

1 stop12h 04m

$331

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Sun 1/18

3:30 pm-7:55 pm

1 stop30h 25m

Lihue

Tue 1/27

10:45 pm-1:56 pm

1 stop13h 11m

$342

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Mon 1/19

8:13 am-4:54 pm

1 stop10h 41m

Lihue

Mon 1/26

1:00 pm-10:28 pm

1 stop7h 28m

$352

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Tue 1/20

8:13 am-4:54 pm

1 stop10h 41m

Lihue

Tue 1/27

1:00 pm-10:28 pm

1 stop7h 28m

$352

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Thu 2/19

8:41 am-4:57 pm

1 stop10h 16m

Lihue

Wed 2/25

11:19 pm-11:08 am

1 stop9h 49m

$357

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Sun 1/18

11:53 am-10:41 pm

1 stop12h 48m

Lihue

Mon 1/26

10:20 pm-1:06 pm

2 stops12h 46m

$360

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Tue 2/24

12:02 pm-10:18 pm

1 stop12h 16m

Lihue

Wed 2/25

11:19 pm-11:08 am

1 stop9h 49m

$361

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Thu 2/26

6:00 am-7:55 pm

2 stops15h 55m

Lihue

Mon 3/9

8:30 pm-11:14 am

1 stop11h 44m

$364

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Mon 3/9

6:00 am-6:50 pm

2 stops15h 50m

Lihue

Tue 3/17

8:30 pm-11:19 am

1 stop11h 49m

$367

OntarioLihue

ONT - LIH

ONTLIH

Ontario

Thu 2/26

6:00 am-7:55 pm

2 stops15h 55m

Lihue

Thu 3/5

10:55 pm-10:40 pm

1 stop21h 45m

$369

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/22

Showing 1-10 of 23 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, January is the cheapest month in which you can book a flight from Ontario to Kaua'i (average of $155). 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 November 24, 2025.
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
11,340 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
Alaska Airlines
8.0
Very good
11,340 reviews
Alaska Airlines
8.0
Very good
11,340 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
Southwest
8.0
Very good
4,252 reviews
Alaska Airlines
8.0
Very good
11,340 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
Delta
7.9
Good
7,993 reviews
Alaska Airlines
8.0
Very good
11,340 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
Hawaiian Airlines
7.8
Good
2,813 reviews
Alaska Airlines
8.0
Very good
11,340 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
United Airlines
7.4
Good
9,039 reviews
Alaska Airlines
8.0
Very good
11,340 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.

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 and Alaska Airlines can get you from Ontario to Kaua'i in just under 10h 25m. Your travel time can differ by up to 16m. There are 2657 mi between Ontario and Kaua'i. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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, January is the cheapest month in which you can book a flight from Ontario to Kaua'i (average of $155). 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 5 airlines flying from Ontario to Kaua'i

Discover the top 5 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 November 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$230Average$345FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$368Average$512FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$393Average$646FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$404Average$605FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$406Average$624FlexibilityNo cancel feeOn-time75%

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