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Kailua-Kona

$254+ 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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — KOA
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
1 adult, Economy
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Cheap 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 March 22, 2026.

This United Airlines deal was found by Cheapflights users on 3/19. 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.
Thu 4/96:10 am
YUL
-
KOA
2 stops19h 32m
United Airlines
Wed 4/151:05 pm
KOA
-
YUL
2 stops15h 35m
United Airlines
Deal found 3/19$490
This United Airlines deal was found by Cheapflights users on 3/17. 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.
Thu 4/166:00 am
YUL
-
KOA
2 stops19h 42m
United Airlines
Mon 4/207:30 pm
KOA
-
YUL
2 stops14h 40m
United Airlines
Deal found 3/17$491
This United Airlines deal was found by Cheapflights users on 3/19. 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.
Mon 4/137:43 pm
YYZ
-
KOA
2 stops21h 57m
United Airlines
Thu 4/1610:48 pm
KOA
-
YYZ
1 stop11h 26m
United Airlines
Deal found 3/19$492
This United Airlines deal was found by Cheapflights users on 3/22. 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 4/85:00 pm
YUL
-
KOA
2 stops25h 45m
United Airlines
Fri 4/171:05 pm
KOA
-
YUL
2 stops15h 35m
United Airlines
Deal found 3/22$493
This Delta deal was found by Cheapflights users on 3/19. 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.
Tue 4/286:00 am
YUL
-
KOA
2 stops19h 03m
Delta
Thu 5/79:55 pm
KOA
-
YUL
2 stops19h 46m
Delta
Deal found 3/19$500
This Air Canada deal was found by Cheapflights users on 3/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:00 pm
YUL
-
KOA
1 stop22h 47m
Air Canada
Mon 4/202:02 pm
KOA
-
YUL
2 stops15h 49m
Air Canada
Deal found 3/19$502
This Booking.com deal was found by Cheapflights users on 3/19. 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 4/286:00 pm
YUL
-
KOA
1 stop22h 47m
Air Canada
Thu 5/711:04 pm
KOA
-
YUL
2 stops30h 56m
Air Canada
Deal found 3/19$504
This Air Canada deal was found by Cheapflights users on 3/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:55 pm
YYZ
-
KOA
1 stop22h 55m
Air Canada
Wed 5/611:04 pm
KOA
-
YYZ
2 stops14h 54m
Air Canada
Deal found 3/22$506
This United Airlines deal was found by Cheapflights users on 3/19. 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 4/1810:45 am
YYZ
-
KOA
2 stops15h 27m
United Airlines
Sat 4/2510:48 pm
KOA
-
YYZ
1 stop11h 26m
United Airlines
Deal found 3/19$535
This United Airlines deal was found by Cheapflights users on 3/21. 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.
Thu 4/169:00 pm
YYZ
-
KOA
2 stops20h 50m
United Airlines
Sun 4/197:30 pm
KOA
-
YYZ
1 stop20h 02m
United Airlines
Deal found 3/21$548
This Air Canada deal was found by Cheapflights users on 3/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/179:00 am
YOW
-
KOA
2 stops16h 47m
Air Canada
Sat 7/2510:50 pm
KOA
-
YOW
2 stops16h 25m
Air Canada
Deal found 3/19$551
This Air Canada deal was found by Cheapflights users on 3/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:55 pm
YYZ
-
KOA
1 stop22h 45m
Air Canada
Thu 4/1610:48 pm
KOA
-
YYZ
1 stop11h 26m
Air Canada
Deal found 3/17$556

Find 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 March 22, 2026.

Round-trip from

$490
(United Airlines)

One-way from

$254
(Air Canada)

Popular in

August

Cheapest in

January

Average price

$642
From Ontario to Kona Intl
Search Deals
One-way flight from Ontario to Kona Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($84 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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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 March 22, 2026.
Use the filters below to find and compare flights from Ontario to Kailua-Kona that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealKailua-Kona

YUL - KOA

YULKOA

Montreal Pierre Elliott Trudeau Intl

Thu 4/16

6:00 am-7:42 pm

2 stops19h 42m

Kona Intl

Mon 4/20

7:30 pm-4:10 pm

2 stops14h 40m

$491

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Tue 4/28

8:50 am-7:42 pm

2 stops16h 52m

Kona Intl

Wed 5/6

1:15 pm-5:56 pm

2 stops22h 41m

$492

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Mon 4/13

7:43 pm-11:40 am

2 stops21h 57m

Kona Intl

Thu 4/16

10:48 pm-4:14 pm

1 stop11h 26m

$492

OttawaKailua-Kona

YOW - KOA

YOWKOA

Ottawa

Fri 7/17

9:00 am-7:47 pm

2 stops16h 47m

Kona Intl

Sat 7/25

10:50 pm-9:15 pm

2 stops16h 25m

$551

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Tue 4/28

6:10 am-7:03 pm

2 stops18h 53m

Kona Intl

Wed 5/6

10:07 pm-10:59 pm

2 stops18h 52m

$567

OttawaKailua-Kona

YOW - KOA

YOWKOA

Ottawa

Mon 4/13

5:00 am-3:30 pm

2 stops16h 30m

Kona Intl

Thu 4/16

10:48 pm-9:16 pm

2 stops16h 28m

$572

MontrealKailua-Kona

YUL - KOA

YULKOA

Montreal Pierre Elliott Trudeau Intl

Mon 9/14

3:25 pm-11:46 am

2 stops26h 21m

Kona Intl

Tue 9/22

11:58 am-8:16 am

1 stop14h 18m

$592
Quickest round-trip

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Fri 4/17

8:30 am-3:30 pm

1 stop13h 00m

Kona Intl

Fri 4/24

12:02 pm-7:00 am

1 stop12h 58m

$601

MontrealKailua-Kona

YUL - KOA

YULKOA

Montreal Pierre Elliott Trudeau Intl

Mon 9/14

7:00 am-6:34 pm

2 stops17h 34m

Kona Intl

Tue 9/22

9:45 pm-11:10 pm

2 stops19h 25m

$602

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Sat 4/18

10:45 am-8:12 pm

2 stops15h 27m

Kona Intl

Sat 4/25

10:18 pm-10:36 pm

2 stops18h 18m

$625

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/19

Showing 1-10 of 45 resultsSorted by cheapest first
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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, January is the cheapest month in which you can book a flight from Region of Ontario to Kailua-Kona (average of $216). Flying from Region of Ontario to Kailua-Kona in June is currently the most expensive (average of $603). 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.

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 16h 47m. Fly via United Airlines, Air Canada, or Delta 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 Montreal Pierre Elliott Trudeau Intl - Kona Intl, Toronto Pearson 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, January is the cheapest month in which you can book a flight from Region of Ontario to Kailua-Kona (average of $216). Flying from Region of Ontario to Kailua-Kona in June is currently the most expensive (average of $603). 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

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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 March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$342Average$636FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$354Average$906FlexibilityNo cancel feeOn-time67%

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