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$191+ Cheap flights from Kailua-Kona (KOA) to Ontario

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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
KOA — YYZ
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Kailua-Kona to Ontario

Keep the following information in mind while searching for Kailua-Kona to Ontario flight deals. Data was last updated October 30, 2025.

Round-trip from

$509
(WestJet)

One-way from

$191
(Air Canada)
From Kona Intl to Ontario
Search Deals
One-way flight from Kona Intl to Ontario
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Find flight deals from Kailua-Kona to Ontario

Cheapest flights from Kailua-Kona to Ontario
Explore the most affordable flight options available from Kailua-Kona to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Alaska Airlines deal was found by Cheapflights users on 10/29. 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 12/136:56 pmKOA - YYZ
2 stops15h 39mAlaska Airlines
Sat 12/204:45 pmYYZ - KOA
1 stop34h 45mAlaska Airlines
Deal found 10/29$1,246
This United Airlines deal was found by Cheapflights users on 10/29. 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 12/138:55 pmKOA - YYZ
1 stop13h 07mUnited Airlines
Sat 12/206:30 amYYZ - KOA
1 stop35h 21mUnited Airlines
Deal found 10/29$1,335

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kailua-Kona 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 October 30, 2025.
Use the filters below to find and compare flights from Kailua-Kona to Ontario that are best for you.

Fly from

Kailua-Kona

Fly to

Ontario

Route

Depart

Return

Price

Kailua-KonaToronto

KOA - YYZ

KOAYYZ

Kona Intl

Thu 2/26

11:30 pm-12:40 am

1 stop20h 10m

Toronto Pearson Intl

Mon 3/2

10:15 pm-10:27 pm

2 stops29h 12m

$509

Kailua-KonaToronto

KOA - YYZ

KOAYYZ

Kona Intl

Thu 2/26

10:00 pm-3:35 pm

1 stop12h 35m

Toronto Pearson Intl

Mon 3/2

4:45 pm-10:35 pm

1 stop34h 50m

$598

Kailua-KonaToronto

KOA - YYZ

KOAYYZ

Kona Intl

Wed 4/1

8:00 pm-10:44 pm

1 stop20h 44m

Toronto Pearson Intl

Sun 4/5

9:00 pm-3:35 pm

2 stops24h 35m

$766

Kailua-KonaToronto

KOA - YYZ

KOAYYZ

Kona Intl

Wed 4/1

2:25 pm-5:55 pm

1 stop21h 30m

Toronto Pearson Intl

Sun 4/5

6:15 am-12:59 pm

1 stop12h 44m

$854

Kailua-KonaToronto

KOA - YYZ

KOAYYZ

Kona Intl

Sat 12/13

6:56 pm-3:35 pm

2 stops15h 39m

Toronto Pearson Intl

Sat 12/20

4:45 pm-10:30 pm

1 stop34h 45m

$1,246

Kailua-KonaToronto

KOA - YYZ

KOAYYZ

Kona Intl

Sat 12/13

8:55 pm-3:02 pm

1 stop13h 07m

Toronto Pearson Intl

Sat 12/20

6:30 am-12:51 pm

1 stop35h 21m

$1,335

Kailua-KonaToronto

KOA - YYZ

KOAYYZ

Kona Intl

Wed 3/11

1:00 pm-4:59 pm

1 stop21h 59m

$191

Kailua-KonaToronto

KOA - YYZ

KOAYYZ

Kona Intl

Sat 3/14

10:30 pm-7:36 pm

3 stops39h 06m

$201

Kailua-KonaToronto

KOA - YYZ

KOAYYZ

Kona Intl

Sat 3/14

10:30 pm-6:40 am

1 stop26h 10m

$205

Kailua-KonaToronto

KOA - YYZ

KOAYYZ

Kona Intl

Thu 3/12

10:30 pm-12:40 am

1 stop20h 10m

$208

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 14 results
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Best time to book a flight from Kailua-Kona to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Kailua-Kona 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 Kailua-Kona to Ontario

How much does it cost to fly round-trip from Kailua-Kona to Region of Ontario?

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 October 30, 2025.
Peruse reviews from past customers who have flown with United Airlines from Kailua-Kona to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,998 reviews

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,998 reviews
United Airlines
7.4
Good
8,998 reviews

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

Find useful and relevant information for your journey from Kailua-Kona 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 from for flights from Kailua-Kona to Ontario?

    For a flight from Kailua-Kona to Ontario, you will be flying from Kona Intl. Kona Intl (KOA) is just 7.7 mi from the center of the city.

  • How long is the flight from Kailua-Kona to Region of Ontario?

    There are many flights that can get you from Kailua-Kona to Region of Ontario in 12h 35m. Fly via WestJet, Alaska Airlines, or United Airlines to get the fastest option. Airlines will cover a distance of 4616 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Kailua-Kona to Ontario that include hotel bookings?

    Yes. In addition to deals on Kailua-Kona to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kailua-Kona to Ontario?

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

  • Can I find deals for business class flights from Kailua-Kona to Ontario?

    Yes. Cheapflights offers flight deals from Kailua-Kona 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.

See more FAQs

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Alternative routes for Kailua-Kona to Ontario

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Top airline flying from Kailua-Kona to Ontario

Discover the top airline that operate flights from Kailua-Kona 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$442Average$765FlexibilityNo cancel feeOn-time69%

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