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Ontario

$182+ Cheap flights from Kaua'i to Ontario (ONT)

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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
LIH — ONT
Apr 9 — Apr 161
Wed 4/9
Wed 4/16
1 adult, Economy
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Cheap flight deals from Kaua'i to Ontario

Keep the following information in mind while searching for Kaua'i to Ontario flight deals. Data was last updated April 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$362
(Delta)

One-way from

$182
(Alaska Airlines)

Popular in

June

Cheapest in

October

Average price

$397
Provider with most accurate pricing for Lihue-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Lihue-Los Angeles flights.
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From Kaua'i to Ontario
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One-way flight from Kaua'i to Ontario
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Highest demand for flights based on searches. 12% potential increase in price ($57 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Kaua'i to Ontario

Cheapest flights from Kaua'i to Ontario
Explore the most affordable flight options available from Kaua'i to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 4, 2025.

This Delta deal was found by Cheapflights users on 4/3. 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 9/179:45 pmLIH - ONT
1 stop10h 05mDelta
Fri 9/267:00 amONT - LIH
1 stop15h 22mDelta
Deal found 4/3$362
This Alaska Airlines deal was found by Cheapflights users on 4/3. 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 9/410:30 pmLIH - ONT
1 stop9h 15mAlaska Airlines
Mon 9/811:39 amONT - LIH
1 stop12h 51mAlaska Airlines
Deal found 4/3$383
This United Airlines deal was found by Cheapflights users on 4/4. 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.
Thu 4/1710:59 pmLIH - ONT
1 stop9h 06mUnited Airlines
Fri 4/256:00 amONT - LIH
1 stop8h 33mUnited Airlines
Deal found 4/4$479
This Southwest deal was found by Cheapflights users on 4/4. 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 6/1210:00 amLIH - ONT
1 stop8h 25mSouthwest
Mon 6/1610:10 amONT - LIH
1 stop8h 50mSouthwest
Deal found 4/4$660
This United deal was found by Cheapflights users on 4/4. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1612:49 pmLIH - ONT
1 stop28h 32mMultiple Airlines
Thu 4/2411:46 amONT - LIH
1 stop12h 46mMultiple Airlines
Deal found 4/4$846
This American Airlines deal was found by Cheapflights users on 4/4. 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.
Thu 6/129:25 pmLIH - ONT
1 stop17h 47mAmerican Airlines
Sun 6/1512:59 amONT - LIH
2 stops14h 05mAmerican Airlines
Deal found 4/4$1,052

Cheapflights Fare Finder

Customize your flight search to find flights from Kaua'i to Ontario 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 April 4, 2025.
Use the filters below to find and compare flights from Kaua'i to Ontario that are best for you.

Fly from

Kaua'i

Fly to

Ontario

Route

Depart

Return

Price

LihueOntario

LIH - ONT

LIHONT

Lihue

Wed 9/17

9:45 pm-10:50 am

1 stop10h 05m

Ontario

Fri 9/26

7:00 am-7:22 pm

1 stop15h 22m

$362

LihueOntario

LIH - ONT

LIHONT

Lihue

Thu 9/4

10:30 pm-10:45 am

1 stop9h 15m

Ontario

Mon 9/8

11:39 am-9:30 pm

1 stop12h 51m

$383

LihueOntario

LIH - ONT

LIHONT

Lihue

Thu 4/17

10:59 pm-11:05 am

1 stop9h 06m

Ontario

Fri 4/25

6:00 am-11:33 am

1 stop8h 33m

$479

LihueOntario

LIH - ONT

LIHONT

Lihue

Thu 6/12

10:00 am-9:25 pm

1 stop8h 25m

Ontario

Mon 6/16

10:10 am-4:00 pm

1 stop8h 50m

$660

LihueOntario

LIH - ONT

LIHONT

Lihue

Wed 4/16

12:49 pm-8:21 pm

1 stop28h 32m

Ontario

Thu 4/24

11:46 am-9:32 pm

1 stop12h 46m

$846

LihueOntario

LIH - ONT

LIHONT

Lihue

Thu 6/12

9:25 pm-6:12 pm

1 stop17h 47m

Ontario

Sun 6/15

12:59 am-12:04 pm

2 stops14h 05m

$1,052

LihueOntario

LIH - ONT

LIHONT

Lihue

Wed 8/27

10:30 pm-10:45 am

1 stop9h 15m

$182

LihueOntario

LIH - ONT

LIHONT

Lihue

Tue 5/20

7:40 am-9:55 pm

1 stop11h 15m

$201

LihueOntario

LIH - ONT

LIHONT

Lihue

Wed 5/28

10:58 pm-12:14 pm

1 stop10h 16m

$211

LihueOntario

LIH - ONT

LIHONT

Lihue

Tue 6/3

9:45 pm-2:15 pm

1 stop13h 30m

$221

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/3

Showing 1-10 of 11 results
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Best time to book a flight from Kaua'i to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Kaua'i 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 Kaua'i to Ontario

What is the cheapest month to book a flight from Kaua'i to Ontario?

Currently, August is the cheapest month in which you can book a flight from Kaua'i to Ontario (average of $246). Flying from Kaua'i to Ontario in March is currently the most expensive (average of $328). 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated April 4, 2025.
To help decide which airline to fly from Kaua'i to Ontario, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,837 reviews

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Alaska Airlines
8.0
Very good
9,837 reviews
Alaska Airlines
8.0
Very good
9,837 reviews

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Southwest
8.0
Very good
4,276 reviews
Alaska Airlines
8.0
Very good
9,837 reviews

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,837 reviews

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Hawaiian Airlines
7.9
Good
2,353 reviews
Alaska Airlines
8.0
Very good
9,837 reviews

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
United Airlines
7.4
Good
8,618 reviews
Alaska Airlines
8.0
Very good
9,837 reviews

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Related info for your journey

Find useful and relevant information for your journey from Kaua'i to Ontario. 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 into for flights to Ontario from Kaua'i?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Kaua'i. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

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

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $182. Hawaiian Airlines flights start at $201 while deals on United Airlines start at $211 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Kaua'i to Ontario 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 Kaua'i to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Kaua'i to Ontario (average of $246). Flying from Kaua'i to Ontario in March is currently the most expensive (average of $328). 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 Kaua'i to Ontario

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Top airline flying from Kaua'i to Ontario

Discover the top airline that operate flights from Kaua'i to Ontario. 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 April 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$358Average$578FlexibilityNo cancel feeOn-time85%

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