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Cheap flights from Ontario to Kailua-Kona from C$ 399

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 30/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — KOA
4 Jun — 11 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Kailua-Kona

Enter your travel dates to find the best prices.

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 5 May 2026.

Fri 30/104:15 p.m.
YUL
-
KOA
2 stops35h 13m
WestJet
Sun 8/1110:55 p.m.
KOA
-
YUL
2 stops20h 38m
WestJet
Deal found 1/5C$ 733
Tue 27/106:45 a.m.
YUL
-
KOA
2 stops20h 43m
WestJet
Wed 11/1110:55 p.m.
KOA
-
YUL
2 stops20h 38m
WestJet
Deal found 1/5C$ 744
Thu 20/86:00 a.m.
YUL
-
KOA
2 stops18h 34m
Delta
Mon 31/88:40 p.m.
KOA
-
YUL
2 stops21h 16m
Delta
Deal found 30/4C$ 755
Mon 26/104:15 p.m.
YUL
-
KOA
2 stops35h 13m
WestJet
Wed 11/1110:55 p.m.
KOA
-
YUL
2 stops20h 38m
WestJet
Deal found 1/5C$ 762
Sat 29/87:00 a.m.
YUL
-
KOA
2 stops18h 17m
Delta
Mon 7/98:40 p.m.
KOA
-
YUL
2 stops21h 16m
Delta
Deal found 2/5C$ 775
Sat 12/910:45 a.m.
YYZ
-
KOA
2 stops14h 50m
United Airlines
Sat 19/910:50 p.m.
KOA
-
YYZ
1 stop11h 24m
United Airlines
Deal found 3/5C$ 820
Wed 14/104:30 p.m.
YUL
-
KOA
2 stops24h 16m
Air Canada
Tue 27/101:20 p.m.
KOA
-
YUL
2 stops15h 00m
Air Canada
Deal found 1/5C$ 827
Thu 20/84:55 p.m.
YUL
-
KOA
2 stops24h 51m
United Airlines
Mon 31/812:04 p.m.
KOA
-
YUL
1 stop14h 12m
United Airlines
Deal found 30/4C$ 831
Wed 14/104:30 p.m.
YUL
-
KOA
2 stops24h 16m
Air Canada
Fri 23/1010:55 p.m.
KOA
-
YUL
2 stops16h 55m
Air Canada
Deal found 1/5C$ 838
Sat 23/54:30 p.m.
YUL
-
KOA
2 stops24h 10m
United Airlines
Mon 1/612:57 p.m.
KOA
-
YUL
2 stops17h 05m
United Airlines
Deal found 1/5C$ 875
Sun 14/66:30 a.m.
YYZ
-
KOA
1 stop21h 15m
United Airlines
Tue 30/61:52 p.m.
KOA
-
YYZ
1 stop11h 08m
United Airlines
Deal found 1/5C$ 888
Sat 7/116:00 a.m.
YUL
-
KOA
2 stops18h 39m
Delta
Sat 21/118:55 p.m.
KOA
-
YUL
2 stops21h 56m
Delta
Deal found 1/5C$ 913

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 5 May 2026.

Round-trip from

C$ 733

One-way from

C$ 399

Popular in

August

Cheapest in

January

Average price

C$ 1,169
WestJet
  • WestJet
  • 30/10-8/11
  • 4 total stops
  • 55h 51m total
  • Ontario to Kailua-Kona
Search Deals
United Airlines
  • United Airlines
  • 29/5
  • 2 total stops
  • 14h 45m total
  • Ontario to Kailua-Kona
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 144 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 629,999 searches. Data last updated 5 May 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 20/8

4:55 p.m.-11:46 a.m.

2 stops24h 51m

Kona Intl

Mon 31/8

12:04 p.m.-8:16 a.m.

1 stop14h 12m

C$ 831

MontrealKailua-Kona

YUL - KOA

YULKOA

Montreal Pierre Elliott Trudeau Intl

Tue 13/10

8:15 a.m.-10:46 a.m.

2 stops32h 31m

Kona Intl

Mon 26/10

7:30 p.m.-5:45 p.m.

2 stops16h 15m

C$ 921

MontrealKailua-Kona

YUL - KOA

YULKOA

Montreal Pierre Elliott Trudeau Intl

Sat 29/8

6:35 p.m.-10:49 a.m.

1 stop22h 14m

Kona Intl

Mon 7/9

8:00 p.m.-5:30 p.m.

2 stops15h 30m

C$ 959

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Mon 1/6

6:30 a.m.-9:45 p.m.

1 stop21h 15m

Kona Intl

Mon 8/6

10:15 p.m.-9:32 p.m.

2 stops17h 17m

C$ 1,022

MontrealKailua-Kona

YUL - KOA

YULKOA

Montreal Pierre Elliott Trudeau Intl

Mon 12/10

8:15 a.m.-10:46 a.m.

2 stops32h 31m

Kona Intl

Thu 22/10

12:04 p.m.-10:40 a.m.

2 stops16h 36m

C$ 1,026

MontrealKailua-Kona

YUL - KOA

YULKOA

Montreal Pierre Elliott Trudeau Intl

Fri 19/6

7:00 a.m.-7:17 p.m.

2 stops18h 17m

Kona Intl

Mon 29/6

8:50 p.m.-11:28 p.m.

2 stops20h 38m

C$ 1,071

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Mon 18/5

10:45 a.m.-7:50 p.m.

2 stops15h 05m

Kona Intl

Tue 2/6

1:52 p.m.-9:54 a.m.

2 stops14h 02m

C$ 1,118

MontrealKailua-Kona

YUL - KOA

YULKOA

Montreal Pierre Elliott Trudeau Intl

Mon 26/10

5:25 p.m.-10:49 a.m.

2 stops23h 24m

Kona Intl

Wed 11/11

8:30 p.m.-4:58 p.m.

1 stop15h 28m

C$ 1,122

MontrealKailua-Kona

YUL - KOA

YULKOA

Montreal Pierre Elliott Trudeau Intl

Wed 27/5

7:00 a.m.-7:20 p.m.

2 stops18h 20m

Kona Intl

Wed 3/6

9:55 p.m.-11:41 p.m.

2 stops19h 46m

C$ 1,124

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Sat 30/5

8:50 a.m.-7:47 p.m.

2 stops16h 57m

Kona Intl

Sat 6/6

1:52 p.m.-3:46 p.m.

2 stops19h 54m

C$ 1,135

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/5

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

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

To ensure you get the cheapest price possible for a flight from Region of Ontario to Kailua-Kona, you should look to book at least 80 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 C$ 271). Flying from Region of Ontario to Kailua-Kona in June is currently the most expensive (average of C$ 514). 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?

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?

    For a flight from Ontario to Kailua-Kona, you will be flying into Kona Intl. Kona Intl (KOA) is just 12.5 km from the centre of the city.

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

    For as low as C$ 1,201, United Airlines can have you in Kailua-Kona from Region of Ontario in 22h 09m. There are 7429 km between Region of Ontario and Kailua-Kona. This flight may include one or multiple stops.

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

    While some choose either Toronto Pearson Intl - Kona Intl or Ottawa - Kona Intl, Montreal Pierre Elliott Trudeau Intl - Kona Intl is the most popular 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 C$ 271). Flying from Region of Ontario to Kailua-Kona in June is currently the most expensive (average of C$ 514). 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.
Vancouver Intl to Honolulu flights
Pearson Intl to Honolulu flights
Pierre Elliott Trudeau Intl to Honolulu flights
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Pearson Intl to Kahului flights
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Calgary to Lihue flights
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Hamilton to Kahului flights
Winnipeg to Honolulu flights
Halifax to Honolulu flights
Ottawa to Honolulu flights
Victoria to Honolulu flights
Halifax to Kahului flights
Region of Waterloo Intl to Kahului flights
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Saskatoon to Honolulu flights
Edmonton to Lihue flights
Ottawa to Kahului flights
Regina to Kahului flights
Moncton to Honolulu flights
Regina to Honolulu flights
Ottawa to Kailua-Kona flights
London to Honolulu flights
Victoria to Lihue flights
Grande Prairie to Kahului flights
Fort McMurray to Honolulu flights
Thunder Bay to Honolulu flights
Saskatoon to Kahului flights

Top 3 airlines flying from Ontario to Kailua-Kona

Discover the top 3 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 629,999 searches. Data last updated 5 May 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 300AverageC$ 602FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 533AverageC$ 847FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 535AverageC$ 954FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Kailua-Kona?

Deals for Ontario to Kailua-Kona flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Kailua-Kona?

Cheapflights simply makes it quick and affordable to book flights from Ontario to Kailua-Kona by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Ontario to Kailua-Kona with no change fees?

Certainly. Search results for flights to Kailua-Kona from Ontario shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Ontario to Kailua-Kona become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Kailua-Kona from Ontario today and book when prices fit your budget.

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