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$170+ 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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
KOA — YYZ
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$437
(WestJet)

One-way from

$170
(Trip.com)
From Kona Intl to Ontario
Search Deals
One-way flight from Kona Intl to Ontario
Search Deals

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 September 16, 2025.

This WestJet deal was found by Cheapflights users on 9/14. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/79:25 pmKOA - YYZ
1 stop22h 01mWestJet
Tue 11/116:30 pmYYZ - KOA
2 stops30h 54mWestJet
Deal found 9/14$437
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/221:05 pmKOA - YYZ
2 stops14h 53mUnited Airlines
Thu 11/66:50 amYYZ - KOA
2 stops14h 28mUnited Airlines
Deal found 9/15$470
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Thu 10/912:22 pmKOA - YYZ
2 stops36h 38mMultiple Airlines
Wed 10/227:45 pmYYZ - KOA
1 stop21h 22mMultiple Airlines
Deal found 9/14$473
This United Airlines deal was found by Cheapflights users on 9/15. 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 11/72:20 pmKOA - YYZ
2 stops14h 38mUnited Airlines
Tue 11/116:50 amYYZ - KOA
2 stops14h 28mUnited Airlines
Deal found 9/15$477
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Thu 10/912:22 pmKOA - YYZ
2 stops36h 38mMultiple Airlines
Tue 10/2110:40 amYYZ - KOA
1 stop30h 27mMultiple Airlines
Deal found 9/14$481
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/76:30 pmKOA - YYZ
2 stops21h 20mMultiple Airlines
Wed 10/227:45 pmYYZ - KOA
1 stop21h 22mMultiple Airlines
Deal found 9/14$490
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Wed 10/81:29 pmKOA - YYZ
1 stop26h 21mMultiple Airlines
Tue 10/211:30 pmYYZ - KOA
2 stops27h 37mMultiple Airlines
Deal found 9/14$494
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Wed 10/81:29 pmKOA - YYZ
1 stop26h 21mMultiple Airlines
Wed 10/227:45 pmYYZ - KOA
1 stop21h 22mMultiple Airlines
Deal found 9/14$499
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Fri 10/101:29 pmKOA - YYZ
2 stops25h 23mMultiple Airlines
Wed 10/227:45 pmYYZ - KOA
1 stop21h 22mMultiple Airlines
Deal found 9/14$505

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 September 16, 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

Fri 11/7

9:25 pm-12:26 am

1 stop22h 01m

Toronto Pearson Intl

Tue 11/11

10:50 pm-8:24 pm

2 stops26h 34m

$452

Kailua-KonaToronto

KOA - YYZ

KOAYYZ

Kona Intl

Fri 11/7

2:20 pm-9:58 am

2 stops14h 38m

Toronto Pearson Intl

Tue 11/11

6:50 am-4:18 pm

2 stops14h 28m

$477

Kailua-KonaToronto

KOA - YYZ

KOAYYZ

Kona Intl

Mon 10/6

1:40 pm-7:00 am

1 stop11h 20m

Toronto Pearson Intl

Sun 10/19

6:30 am-8:45 pm

1 stop20h 15m

$507

Kailua-KonaToronto

KOA - YYZ

KOAYYZ

Kona Intl

Mon 10/6

8:00 pm-3:11 pm

1 stop13h 11m

Toronto Pearson Intl

Sat 10/18

4:18 pm-3:46 pm

1 stop29h 28m

$507

Kailua-KonaToronto

KOA - YYZ

KOAYYZ

Kona Intl

Tue 10/7

1:40 pm-7:00 am

1 stop11h 20m

Toronto Pearson Intl

Thu 10/16

9:00 pm-11:56 am

2 stops20h 56m

$517

Kailua-KonaToronto

KOA - YYZ

KOAYYZ

Kona Intl

Mon 10/6

8:00 pm-3:11 pm

1 stop13h 11m

Toronto Pearson Intl

Fri 10/17

9:00 pm-11:56 am

2 stops20h 56m

$517

Kailua-KonaToronto

KOA - YYZ

KOAYYZ

Kona Intl

Tue 10/7

1:40 pm-7:00 am

1 stop11h 20m

Toronto Pearson Intl

Sat 10/18

7:00 am-3:46 pm

3 stops38h 46m

$517

Kailua-KonaToronto

KOA - YYZ

KOAYYZ

Kona Intl

Tue 10/7

1:40 pm-7:00 am

1 stop11h 20m

Toronto Pearson Intl

Fri 10/17

9:00 pm-11:56 am

2 stops20h 56m

$517

Kailua-KonaToronto

KOA - YYZ

KOAYYZ

Kona Intl

Sat 3/7

11:30 pm-5:23 pm

2 stops35h 53m

$181

Kailua-KonaToronto

KOA - YYZ

KOAYYZ

Kona Intl

Tue 10/21

1:40 pm-7:00 am

1 stop11h 20m

$191

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 14 results
1
2

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 September 16, 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
8,929 reviews

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,929 reviews
United Airlines
7.4
Good
8,929 reviews

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 14h 38m. Fly via WestJet 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.

  • What is the cheapest month to book a flight from Kailua-Kona to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from Kailua-Kona to Region of Ontario (average of $243). Flying from Kailua-Kona to Region of Ontario in August is currently the most expensive (average of $348). 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 Kailua-Kona 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 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$442Average$765FlexibilityNo cancel feeOn-time69%

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