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Kailua-Kona

$244+ 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — KOA
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$359
(Trip.com)

One-way from

$244
(United Airlines)

Popular in

June

Cheapest in

November

Average price

$864
From Ontario to Kona Intl
Search Deals
One-way flight from Ontario to Kona Intl
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($163 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 31, 2025.

This Trip.com deal was found by Cheapflights users on 7/30. 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 12/110:45 pmYYZ - KOA
2 stops28h 43mWestJet
Fri 12/1210:55 pmKOA - YYZ
2 stops13h 28mWestJet
Deal found 7/30$359
This FlightHub deal was found by Cheapflights users on 7/30. 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 10/274:15 pmYUL - KOA
2 stops35h 13mWestJet
Thu 11/1311:30 pmKOA - YUL
2 stops58h 42mWestJet
Deal found 7/30$364
This United Airlines deal was found by Cheapflights users on 7/31. 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 10/77:00 amYYZ - KOA
2 stops14h 25mUnited Airlines
Tue 11/118:55 pmKOA - YYZ
2 stops14h 07mUnited Airlines
Deal found 7/31$403
This United Airlines deal was found by Cheapflights users on 7/31. 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 10/286:00 amYUL - KOA
2 stops15h 18mUnited Airlines
Fri 11/148:55 pmKOA - YUL
2 stops19h 47mUnited Airlines
Deal found 7/31$447
This CheapTickets.ch deal was found by Cheapflights users on 7/30. 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 CheapTickets.ch is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/154:45 pmYYZ - KOA
1 stop34h 55mMultiple Airlines
Fri 10/319:55 pmKOA - YYZ
1 stop26h 18mMultiple Airlines
Deal found 7/30$458
This United Airlines deal was found by Cheapflights users on 7/30. 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 10/67:29 pmYOW - KOA
2 stops21h 57mUnited Airlines
Wed 10/151:05 pmKOA - YOW
2 stops14h 53mUnited Airlines
Deal found 7/30$473
This Air Canada deal was found by Cheapflights users on 7/30. 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 10/166:35 pmYYZ - KOA
2 stops22h 51mAir Canada
Mon 11/32:20 pmKOA - YYZ
2 stops18h 41mAir Canada
Deal found 7/30$486
This Air Canada deal was found by Cheapflights users on 7/30. 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.
Sat 10/257:30 amYUL - KOA
2 stops34h 06mAir Canada
Tue 11/112:25 pmKOA - YUL
2 stops20h 32mAir Canada
Deal found 7/30$491
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/256:15 amYYZ - KOA
2 stops18h 45mDelta
Wed 9/38:41 pmKOA - YYZ
2 stops20h 17mDelta
Deal found 7/29$524
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/184:45 pmYYZ - KOA
2 stops24h 12mAlaska Airlines
Tue 10/288:00 amKOA - YYZ
1 stop25h 35mAlaska Airlines
Deal found 7/30$543
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/812:30 pmYUL - KOA
2 stops31h 28mAmerican Airlines
Thu 10/169:45 pmKOA - YUL
2 stops30h 05mAmerican Airlines
Deal found 7/30$775
This Delta deal was found by Cheapflights users on 7/30. 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.
Fri 10/107:50 amYOW - KOA
2 stops15h 40mDelta
Thu 10/168:30 pmKOA - YOW
2 stops22h 10mDelta
Deal found 7/30$822

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 July 31, 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

Mon 10/27

4:15 pm-9:28 pm

2 stops35h 13m

Kona Intl

Thu 11/13

11:30 pm-3:12 pm

2 stops58h 42m

$364

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Tue 10/7

7:00 am-3:25 pm

2 stops14h 25m

Kona Intl

Tue 11/11

8:55 pm-4:02 pm

2 stops14h 07m

$403

MontrealKailua-Kona

YUL - KOA

YULKOA

Montreal Pierre Elliott Trudeau Intl

Tue 10/28

6:00 am-3:18 pm

2 stops15h 18m

Kona Intl

Fri 11/14

8:55 pm-9:42 pm

2 stops19h 47m

$447

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Wed 10/15

4:45 pm-9:40 pm

1 stop34h 55m

Kona Intl

Fri 10/31

9:55 pm-6:13 am

1 stop26h 18m

$458

OttawaKailua-Kona

YOW - KOA

YOWKOA

Ottawa

Mon 10/6

7:29 pm-11:26 am

2 stops21h 57m

Kona Intl

Wed 10/15

1:05 pm-9:58 am

2 stops14h 53m

$473

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Thu 10/16

6:35 pm-11:26 am

2 stops22h 51m

Kona Intl

Mon 11/3

2:20 pm-2:01 pm

2 stops18h 41m

$486

MontrealKailua-Kona

YUL - KOA

YULKOA

Montreal Pierre Elliott Trudeau Intl

Sat 10/25

6:30 pm-11:36 am

1 stop23h 06m

Kona Intl

Wed 11/12

2:25 pm-4:49 pm

1 stop21h 24m

$491

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Mon 8/25

6:15 am-7:00 pm

2 stops18h 45m

Kona Intl

Wed 9/3

8:41 pm-10:58 pm

2 stops20h 17m

$524

TorontoKailua-Kona

YYZ - KOA

YYZKOA

Toronto Pearson Intl

Sat 10/18

4:45 pm-10:57 am

2 stops24h 12m

Kona Intl

Tue 10/28

8:00 am-3:35 pm

1 stop25h 35m

$543

MontrealKailua-Kona

YUL - KOA

YULKOA

Montreal Pierre Elliott Trudeau Intl

Wed 10/8

12:30 pm-1:58 pm

2 stops31h 28m

Kona Intl

Thu 10/16

9:45 pm-9:50 am

2 stops30h 05m

$775

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 23 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 July 31, 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.

Reviews of airlines servicing Kailua-Kona

Get insights into the airlines that provide service to Kailua-Kona. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kailua-Kona. Reviews last updated July 31, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and United Airlines from Ontario to Kailua-Kona have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
WestJet
7.2
Good
2,978 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave

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.

  • 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 United Airlines ($244), Air Canada ($274), and Alaska Airlines ($310).

  • 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

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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$521Average$857FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$639Average$702FlexibilityNo cancel feeOn-time67%

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