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Kailua-Kona

$187+ Cheap flights from Ontario to Kailua-Kona (KOA)

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 11/29. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — KOA
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Ontario to Kailua-Kona

Keep the following information in mind while searching for Ontario to Kailua-Kona flight deals. Data was last updated September 15, 2025.

Round-trip from

$305
(Trip.com)

One-way from

$187
(FlightHub)

Popular in

June

Cheapest in

November

Average price

$487
From Ontario to Kona Intl
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One-way flight from Ontario to Kona Intl
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Highest demand for flights based on searches. 21% potential increase in price ($184 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Ontario to Kailua-Kona

Cheapest flights from Ontario to Kailua-Kona
Explore the most affordable flight options available from Ontario to Kailua-Kona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Trip.com deal was found by Cheapflights users on 9/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/64:00 pmYYZ - KOA
1 stop34h 54mWestJet
Fri 12/1210:55 pmKOA - YYZ
1 stop26h 18mWestJet
Deal found 9/13$305
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 12/51:30 pmYYZ - KOA
1 stop13h 24mWestJet
Wed 12/1010:55 pmKOA - YYZ
1 stop17h 16mWestJet
Deal found 9/13$314
This FlightHub deal was found by Cheapflights users on 9/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:45 amYYZ - KOA
1 stop19h 09mWestJet
Thu 12/1111:30 pmKOA - YYZ
2 stops18h 41mWestJet
Deal found 9/13$322
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 12/46:30 amYYZ - KOA
2 stops20h 58mWestJet
Wed 12/1010:55 pmKOA - YYZ
1 stop13h 33mWestJet
Deal found 9/13$324
This FlightHub deal was found by Cheapflights users on 9/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/51:30 pmYYZ - KOA
1 stop13h 24mWestJet
Sat 12/1311:30 pmKOA - YYZ
2 stops19h 09mWestJet
Deal found 9/13$327
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Mon 12/810:15 pmYYZ - KOA
1 stop29h 13mWestJet
Thu 12/1111:30 pmKOA - YYZ
1 stop13h 11mWestJet
Deal found 9/13$328
This FlightHub deal was found by Cheapflights users on 9/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/68:00 amYYZ - KOA
2 stops19h 28mWestJet
Thu 12/1111:30 pmKOA - YYZ
1 stop17h 23mWestJet
Deal found 9/13$334
This FlightHub deal was found by Cheapflights users on 9/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/78:00 amYYZ - KOA
2 stops18h 54mWestJet
Thu 12/1111:30 pmKOA - YYZ
2 stops18h 41mWestJet
Deal found 9/13$338
This FlightHub deal was found by Cheapflights users on 9/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/68:00 amYYZ - KOA
2 stops19h 28mWestJet
Sat 12/1311:30 pmKOA - YYZ
1 stop20h 08mWestJet
Deal found 9/13$341
This FlightHub deal was found by Cheapflights users on 9/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/59:40 amYYZ - KOA
2 stops17h 14mWestJet
Fri 12/1210:55 pmKOA - YYZ
2 stops13h 28mWestJet
Deal found 9/13$342
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Sat 12/610:30 amYYZ - KOA
1 stop16h 58mWestJet
Sun 12/1410:55 pmKOA - YYZ
1 stop13h 33mWestJet
Deal found 9/13$343
This Booking.com deal was found by Cheapflights users on 9/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:45 amYUL - KOA
2 stops44h 09mWestJet
Sat 1/1711:30 pmKOA - YUL
2 stops26h 35mWestJet
Deal found 9/13$363

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Kailua-Kona 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 15, 2025.
Use the filters below to find and compare flights from Ontario to Kailua-Kona that are best for you.

Fly from

Ontario

Fly to

Kailua-Kona

Route

Depart

Return

Price

MontrealKailua-Kona

YUL - KOA

YULKOA

Montreal Pierre Elliott Trudeau Intl

Thu 2/5

7:30 pm-9:47 pm

1 stop31h 17m

Kona Intl

Thu 2/19

11:30 pm-7:05 am

2 stops26h 35m

$345

OttawaKailua-Kona

YOW - KOA

YOWKOA

Ottawa

Mon 3/2

7:15 pm-10:27 pm

2 stops32h 12m

Kona Intl

Wed 3/4

10:55 pm-4:53 pm

1 stop12h 58m

$350

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Mon 3/9

10:15 pm-9:27 pm

2 stops29h 12m

Kona Intl

Fri 3/20

9:55 pm-8:34 am

2 stops28h 39m

$352

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Wed 3/11

1:30 pm-8:47 pm

1 stop13h 17m

Kona Intl

Wed 3/18

9:55 pm-11:11 pm

1 stop19h 16m

$352

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Mon 12/8

10:15 pm-10:28 pm

1 stop29h 13m

Kona Intl

Sat 12/13

11:30 pm-11:39 pm

2 stops19h 09m

$352

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Thu 3/12

10:15 pm-8:47 pm

1 stop28h 32m

Kona Intl

Wed 3/18

9:55 pm-11:38 pm

2 stops19h 43m

$352

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Sun 3/8

10:00 am-8:47 pm

1 stop16h 47m

Kona Intl

Fri 3/20

9:55 pm-8:34 am

2 stops28h 39m

$352

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Thu 12/4

1:30 pm-10:28 pm

1 stop13h 58m

Kona Intl

Fri 12/12

10:55 pm-12:26 am

1 stop20h 31m

$352

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Fri 3/6

7:45 am-9:47 pm

1 stop19h 02m

Kona Intl

Sun 3/22

9:55 pm-12:26 am

1 stop20h 31m

$352

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Fri 3/13

9:40 am-8:47 pm

2 stops17h 07m

Kona Intl

Sun 3/22

9:55 pm-11:35 pm

2 stops19h 40m

$352

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 49 results
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Best time to book a flight from Ontario to Kailua-Kona

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

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

Currently, October is the cheapest month in which you can book a flight from Region of Ontario to Kailua-Kona (average of $409). Flying from Region of Ontario to Kailua-Kona in June is currently the most expensive (average of $624). 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.

What is the cheapest time of day to fly from ON to KOA?

Find hourly flight availability from Ontario to Kailua-Kona. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

When flying from Region of Ontario to Kailua-Kona, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

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

    Located just 7.7 mi from the city center, Kona Intl (KOA) is the airport most travelers will use when flying to Kailua-Kona from Ontario.

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

    There are many flights that can get you from Region of Ontario to Kailua-Kona in 24h 19m. Fly via WestJet or Air Canada to get the fastest option. Region of Ontario and Kailua-Kona are separated by a distance of 4796 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Region of Ontario to Kailua-Kona?

    Most travelers choose Toronto Pearson Intl - Kona Intl, Montreal Pierre Elliott Trudeau Intl - Kona Intl or Ottawa - Kona Intl when deciding on the best route from Region of Ontario to Kailua-Kona.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Kailua-Kona 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 Region of Ontario to Kailua-Kona?

    Currently, October is the cheapest month in which you can book a flight from Region of Ontario to Kailua-Kona (average of $409). Flying from Region of Ontario to Kailua-Kona in June is currently the most expensive (average of $624). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Kailua-Kona

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Ontario to Kailua-Kona

Discover the top 2 airlines that operate flights from Ontario to Kailua-Kona. 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$489Average$784FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$639Average$744FlexibilityNo cancel feeOn-time67%

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