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$161+ 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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
LIH — ONT
May 4 — May 111
Sun 5/4
Sun 5/11
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 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$362
(Delta)

One-way from

$161
(Delta)

Popular in

June

Cheapest in

October

Average price

$448
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
Search Deals
One-way flight from Kaua'i to Ontario
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Highest demand for flights based on searches. 16% potential increase in price ($82 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 29, 2025.

This Delta deal was found by Cheapflights users on 4/27. 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 9/49:45 pmLIH - ONT
1 stop10h 08mDelta
Mon 9/811:29 amONT - LIH
1 stop10h 53mDelta
Deal found 4/27$362
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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 14mAlaska Airlines
Sun 9/76:00 amONT - LIH
1 stop10h 25mAlaska Airlines
Deal found 4/27$383
This American Airlines deal was found by Cheapflights users on 4/27. 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 4/289:32 pmLIH - ONT
1 stop17h 55mAmerican Airlines
Mon 5/56:01 amONT - LIH
1 stop11h 54mAmerican Airlines
Deal found 4/27$534
This Hawaiian Airlines deal was found by Cheapflights users on 4/27. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/17:40 amLIH - ONT
1 stop11h 10mHawaiian Airlines
Sat 5/39:45 amONT - LIH
1 stop10h 32mHawaiian Airlines
Deal found 4/27$627
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Sat 7/512:30 pmLIH - ONT
1 stop7h 22mUnited Airlines
Wed 7/91:19 pmONT - LIH
1 stop9h 19mUnited Airlines
Deal found 4/27$840

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 29, 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

Thu 9/4

9:45 pm-10:53 am

1 stop10h 08m

Ontario

Mon 9/8

11:29 am-7:22 pm

1 stop10h 53m

$362

LihueOntario

LIH - ONT

LIHONT

Lihue

Thu 9/4

10:30 pm-10:44 am

1 stop9h 14m

Ontario

Sun 9/7

6:00 am-1:25 pm

1 stop10h 25m

$383

LihueOntario

LIH - ONT

LIHONT

Lihue

Sat 7/5

12:30 pm-10:52 pm

1 stop7h 22m

Ontario

Wed 7/9

1:19 pm-7:38 pm

1 stop9h 19m

$840

LihueOntario

LIH - ONT

LIHONT

Lihue

Mon 9/8

9:45 pm-10:50 am

1 stop10h 05m

$161

LihueOntario

LIH - ONT

LIHONT

Lihue

Thu 8/21

10:30 pm-10:45 am

1 stop9h 15m

$182

LihueOntario

LIH - ONT

LIHONT

Lihue

Fri 8/29

11:10 pm-12:13 pm

1 stop10h 03m

$211

LihueOntario

LIH - ONT

LIHONT

Lihue

Sat 5/17

7:40 am-9:55 pm

1 stop11h 15m

$246

LihueOntario

LIH - ONT

LIHONT

Lihue

Wed 7/23

10:00 am-10:50 pm

2 stops9h 50m

$254

LihueOntario

LIH - ONT

LIHONT

Lihue

Wed 6/11

6:39 pm-4:13 pm

2 stops18h 34m

$437

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/26

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 29, 2025.
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,292 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,929 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,402 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 Delta, which is currently one of the cheapest options available, starting at $161. Alaska Airlines flights start at $182 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$358Average$493FlexibilityNo cancel feeOn-time85%

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