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Kailua-Kona

$215+ 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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — KOA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$355
(oojo)

One-way from

$215
(FlightHub)

Popular in

June

Cheapest in

November

Average price

$734
Provider with most accurate pricing for Toronto (YTO)-Kona Intl flight deals.
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Provider most trusted by Cheapflights users for Toronto (YTO)-Kona Intl flights.
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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. 19% potential increase in price ($166 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 30, 2025.

This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/255:20 pmYYZ - KOA
2 stops33h 34mWestJet
Tue 12/29:30 pmKOA - YYZ
2 stops20h 41mWestJet
Deal found 10/29$355
This oojo deal was found by Cheapflights users on 10/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/77:45 amYYZ - KOA
1 stop17h 44mWestJet
Wed 12/109:30 pmKOA - YYZ
1 stop20h 41mWestJet
Deal found 10/28$358
This oojo deal was found by Cheapflights users on 10/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1110:15 pmYYZ - KOA
1 stop27h 09mWestJet
Thu 11/139:30 pmKOA - YYZ
2 stops21h 56mWestJet
Deal found 10/28$371
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:45 amYUL - KOA
2 stops44h 43mWestJet
Sun 11/3010:55 pmKOA - YUL
1 stop27h 10mWestJet
Deal found 10/29$387
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/226:30 pmYYZ - KOA
1 stop32h 24mWestJet
Fri 11/2810:55 pmKOA - YYZ
1 stop20h 31mWestJet
Deal found 10/29$399
This WestJet 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/236:30 amYYZ - KOA
1 stop20h 24mWestJet
Fri 11/2810:55 pmKOA - YYZ
2 stops26h 03mWestJet
Deal found 10/29$405
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:00 pmYUL - KOA
3 stops33h 28mMultiple Airlines
Sun 11/3010:55 pmKOA - YUL
2 stops20h 40mMultiple Airlines
Deal found 10/29$485
This Trip.com deal was found by Cheapflights users on 10/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/56:45 amYUL - KOA
2 stops18h 39mMultiple Airlines
Wed 11/199:25 pmKOA - YUL
2 stops19h 55mMultiple Airlines
Deal found 10/27$656
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.
Fri 11/75:25 pmYUL - KOA
2 stops24h 35mUnited Airlines
Sun 11/168:55 pmKOA - YUL
2 stops19h 22mUnited Airlines
Deal found 10/29$838
This FlightHub deal was found by Cheapflights users on 10/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/217:30 pmYUL - KOA
2 stops55h 58mWestJet
Sat 1/179:30 pmKOA - YUL
2 stops36h 42mWestJet
Deal found 10/27$900
This FlightHub deal was found by Cheapflights users on 10/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/217:30 pmYUL - KOA
2 stops55h 58mWestJet
Fri 1/169:30 pmKOA - YUL
2 stops46h 13mWestJet
Deal found 10/27$907
This United Airlines deal was found by Cheapflights users on 10/28. 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 12/245:50 pmYUL - KOA
1 stop22h 34mUnited Airlines
Wed 1/72:20 pmKOA - YUL
2 stops18h 40mUnited Airlines
Deal found 10/28$922

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 October 30, 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

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Tue 11/25

10:15 pm-9:54 pm

1 stop28h 39m

Kona Intl

Tue 12/2

9:30 pm-11:11 pm

2 stops20h 41m

$359

MontrealKailua-Kona

YUL - KOA

YULKOA

Montreal Pierre Elliott Trudeau Intl

Sat 1/24

6:00 am-4:31 pm

1 stop15h 31m

Kona Intl

Sat 1/31

3:59 pm-1:28 pm

2 stops16h 29m

$367

MontrealKailua-Kona

YUL - KOA

YULKOA

Montreal Pierre Elliott Trudeau Intl

Sat 1/24

6:00 am-4:31 pm

1 stop15h 31m

Kona Intl

Sun 2/1

3:59 pm-1:28 pm

2 stops16h 29m

$367

MontrealKailua-Kona

YUL - KOA

YULKOA

Montreal Pierre Elliott Trudeau Intl

Sat 1/24

6:45 am-8:29 pm

2 stops42h 44m

Kona Intl

Sat 1/31

9:30 pm-3:13 pm

2 stops36h 43m

$382

MontrealKailua-Kona

YUL - KOA

YULKOA

Montreal Pierre Elliott Trudeau Intl

Wed 1/21

6:00 am-4:41 pm

2 stops15h 41m

Kona Intl

Sat 1/31

3:59 pm-1:28 pm

2 stops16h 29m

$388

MontrealKailua-Kona

YUL - KOA

YULKOA

Montreal Pierre Elliott Trudeau Intl

Sat 1/24

6:00 am-4:31 pm

1 stop15h 31m

Kona Intl

Tue 2/3

3:59 pm-1:28 pm

2 stops16h 29m

$388

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Sat 11/22

6:30 pm-9:54 pm

1 stop32h 24m

Kona Intl

Fri 11/28

10:55 pm-12:26 am

1 stop20h 31m

$399

OttawaKailua-Kona

YOW - KOA

YOWKOA

Ottawa

Mon 3/2

5:45 pm-10:27 pm

2 stops33h 42m

Kona Intl

Wed 3/4

10:55 pm-4:53 pm

1 stop12h 58m

$401

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Sun 11/23

6:30 am-9:54 pm

1 stop20h 24m

Kona Intl

Fri 11/28

10:55 pm-5:58 am

2 stops26h 03m

$405

MontrealKailua-Kona

YUL - KOA

YULKOA

Montreal Pierre Elliott Trudeau Intl

Wed 1/21

6:00 am-4:41 pm

2 stops15h 41m

Kona Intl

Tue 2/3

3:59 pm-1:28 pm

2 stops16h 29m

$410

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 43 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, August is the cheapest month in which you can book a flight from Region of Ontario to Kailua-Kona (average of $292). Flying from Region of Ontario to Kailua-Kona in June is currently the most expensive (average of $637). 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 October 30, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 34% on flights from Region of Ontario to Kailua-Kona by exploring options for tickets in the afternoon.

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

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 15h 31m. Fly via WestJet or United Airlines to get the fastest option. Region of Ontario and Kailua-Kona are separated by a distance of 4887 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Region of Ontario to Kailua-Kona one-way?

    The cheapest airlines for a one-way flight from Region of Ontario to Kailua-Kona are WestJet ($215), Air Canada ($232), and Porter Airlines ($410).

  • 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, August is the cheapest month in which you can book a flight from Region of Ontario to Kailua-Kona (average of $292). Flying from Region of Ontario to Kailua-Kona in June is currently the most expensive (average of $637). 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 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$508Average$755FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$639Average$744FlexibilityNo cancel feeOn-time67%

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