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Kailua-Kona

$282+ 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 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — KOA
Jul 22 — Jul 291
Wed 7/22
Wed 7/29
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 June 22, 2026.

This oojo deal was found by Cheapflights users on 6/18. 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.
Wed 11/1810:15 pm
YYZ
-
KOA
2 stops28h 13m
WestJet
Fri 12/410:55 pm
KOA
-
YYZ
2 stops18h 48m
WestJet
Deal found 6/18$499
This FlightHub deal was found by Cheapflights users on 6/20. 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.
Mon 12/710:15 pm
YYZ
-
KOA
2 stops28h 13m
WestJet
Sat 12/1911:30 pm
KOA
-
YYZ
2 stops42h 13m
WestJet
Deal found 6/20$516
This FlightHub deal was found by Cheapflights users on 6/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/254:15 pm
YUL
-
KOA
2 stops59h 13m
WestJet
Sun 11/110:55 pm
KOA
-
YUL
1 stop34h 17m
WestJet
Deal found 6/17$532
This WestJet deal was found by Cheapflights users on 6/21. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2610:15 pm
YYZ
-
KOA
1 stop29h 13m
WestJet
Thu 10/2910:30 pm
KOA
-
YYZ
1 stop20h 10m
WestJet
Deal found 6/21$534
This WestJet deal was found by Cheapflights users on 6/19. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:45 am
YUL
-
KOA
2 stops20h 43m
WestJet
Thu 10/2910:30 pm
KOA
-
YUL
2 stops34h 42m
WestJet
Deal found 6/19$542
This United Airlines deal was found by Cheapflights users on 6/20. 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 7/410:45 am
YYZ
-
KOA
2 stops17h 00m
United Airlines
Wed 7/1511:55 am
KOA
-
YYZ
2 stops15h 59m
United Airlines
Deal found 6/20$544
This United Airlines deal was found by Cheapflights users on 6/20. 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 8/129:45 am
YUL
-
KOA
2 stops15h 50m
United Airlines
Wed 8/2612:04 pm
KOA
-
YUL
2 stops16h 36m
United Airlines
Deal found 6/20$545
This FlightHub deal was found by Cheapflights users on 6/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:20 pm
YUL
-
KOA
2 stops55h 34m
WestJet
Sun 11/2210:55 pm
KOA
-
YUL
2 stops44h 38m
WestJet
Deal found 6/21$547
This United Airlines deal was found by Cheapflights users on 6/17. 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.
Sat 8/159:45 am
YUL
-
KOA
2 stops16h 20m
United Airlines
Mon 8/318:00 pm
KOA
-
YUL
2 stops15h 30m
United Airlines
Deal found 6/17$549
This United Airlines deal was found by Cheapflights users on 6/18. 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.
Tue 10/2011:00 am
YYZ
-
KOA
2 stops16h 27m
United Airlines
Tue 10/271:11 pm
KOA
-
YYZ
2 stops16h 37m
United Airlines
Deal found 6/18$555
This United Airlines deal was found by Cheapflights users on 6/17. 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.
Tue 10/2010:15 am
YYZ
-
KOA
2 stops17h 12m
United Airlines
Mon 10/267:30 pm
KOA
-
YYZ
2 stops14h 58m
United Airlines
Deal found 6/17$560
This United Airlines deal was found by Cheapflights users on 6/17. 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.
Tue 10/2010:15 am
YYZ
-
KOA
2 stops17h 12m
United Airlines
Sat 10/2410:55 pm
KOA
-
YYZ
1 stop11h 14m
United Airlines
Deal found 6/17$575

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 June 22, 2026.

Round-trip from

$499
(oojo)

One-way from

$324
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$1,142
From Ontario to Kona Intl
Search Deals
One-way flight from Ontario to Kona Intl
Search Deals
Highest demand for flights based on searches. 28% potential increase in price ($278 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 June 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

Sun 10/25

4:15 pm-9:28 pm

2 stops59h 13m

Kona Intl

Sun 11/1

10:55 pm-2:12 pm

1 stop34h 17m

$532

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Thu 7/9

11:00 am-9:45 pm

2 stops16h 45m

Kona Intl

Thu 7/16

12:57 pm-9:54 am

2 stops14h 57m

$544

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Sat 7/4

10:45 am-9:45 pm

2 stops17h 00m

Kona Intl

Tue 7/14

1:52 pm-7:00 am

1 stop11h 08m

$544
Quickest round-trip

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Tue 10/20

11:00 am-9:27 pm

2 stops16h 27m

Kona Intl

Tue 10/27

10:59 pm-4:08 pm

1 stop11h 09m

$555

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Sat 10/31

8:35 am-7:32 pm

2 stops16h 57m

Kona Intl

Mon 4/19

7:05 pm-3:12 pm

1 stop14h 07m

$594

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Wed 10/28

7:00 am-7:36 pm

2 stops18h 36m

Kona Intl

Thu 4/15

12:00 pm-6:45 am

1 stop12h 45m

$598

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Wed 10/28

8:50 am-7:36 pm

2 stops16h 46m

Kona Intl

Mon 4/19

7:05 pm-6:42 pm

2 stops17h 37m

$598

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Wed 10/28

7:00 am-7:36 pm

2 stops18h 36m

Kona Intl

Fri 4/16

1:10 pm-9:55 am

2 stops14h 45m

$599

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Sat 10/31

8:50 am-7:36 pm

2 stops16h 46m

Kona Intl

Fri 4/16

7:05 pm-3:12 pm

1 stop14h 07m

$599

OttawaKailua-Kona

YOW - KOA

YOWKOA

Ottawa

Thu 10/29

6:00 am-7:32 pm

2 stops19h 32m

Kona Intl

Mon 11/2

11:59 pm-4:58 am

2 stops23h 59m

$610

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/18

Showing 1-10 of 42 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 $199). Flying from Region of Ontario to Kailua-Kona in June is currently the most expensive (average of $786). 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.

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

How far ahead should I book a flight from Region of Ontario to Kailua-Kona?

The price you pay for your flight from Region of Ontario to Kailua-Kona may vary depending on when you book. For the best chance of a lower fare, look to book 88 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 19h 32m. Fly via WestJet, Air Canada, or United Airlines 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 $199). Flying from Region of Ontario to Kailua-Kona in June is currently the most expensive (average of $786). 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.

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 June 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$342Average$552FlexibilityNo cancel feeOn-time69%
WestJetCheapest$371Average$677FlexibilityNo cancel feeOn-time60%

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