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$403+ Cheap flights from Kingston (KIN) to Ontario (ONT)

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 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
KIN — ONT
Mar 20 — Mar 271
Fri 3/20
Fri 3/27
1 adult, Economy
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Cheap flight deals from Kingston to Ontario

Cheapest flights from Kingston to Ontario
Explore the most affordable flight options available from Kingston to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 18, 2026.

This United Airlines deal was found by Cheapflights users on 2/15. 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 4/222:59 pm
KIN
-
ONT
2 stops23h 21m
United Airlines
Mon 4/276:05 am
ONT
-
KIN
2 stops29h 47m
United Airlines
Deal found 2/15$707
This Delta deal was found by Cheapflights users on 2/14. 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.
Sun 3/19:00 am
KIN
-
ONT
1 stop15h 05m
Delta
Thu 3/510:20 pm
ONT
-
KIN
1 stop18h 40m
Delta
Deal found 2/14$849
This United Airlines deal was found by Cheapflights users on 2/14. 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 3/312:59 pm
KIN
-
ONT
2 stops33h 27m
United Airlines
Tue 4/76:05 am
ONT
-
KIN
2 stops29h 47m
United Airlines
Deal found 2/14$958
This Delta deal was found by Cheapflights users on 2/15. 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.
Wed 4/229:00 am
KIN
-
ONT
1 stop14h 00m
Delta
Mon 4/277:05 am
ONT
-
KIN
1 stop10h 55m
Delta
Deal found 2/15$976
This AOBTravel deal was found by Cheapflights users on 2/14. 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 AOBTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/17:32 am
KIN
-
ONT
2 stops17h 57m
British Airways
Thu 3/56:00 am
ONT
-
KIN
2 stops11h 08m
British Airways
Deal found 2/14$1,055
This United Airlines deal was found by Cheapflights users on 2/16. 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 4/22:59 pm
KIN
-
ONT
2 stops32h 51m
United Airlines
Thu 4/96:05 am
ONT
-
KIN
2 stops53h 47m
United Airlines
Deal found 2/16$1,198

Find flight deals from Kingston to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Kingston (KIN) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$707
(United Airlines)

One-way from

$403
(United Airlines)

Popular in

August

Cheapest in

December

Average price

$554
Provider with most accurate pricing for Kingston Norman Manley-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kingston Norman Manley-Ontario flights.
Search Deals
From Kingston Norman Manley to Ontario
Search Deals
One-way flight from Kingston Norman Manley to Ontario
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kingston to Ontario 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 February 18, 2026.
Use the filters below to find and compare flights from Kingston to Ontario that are best for you.

Fly from

Kingston

Fly to

Ontario

Route

Depart

Return

Price

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

Wed 4/22

2:59 pm-12:20 pm

2 stops23h 21m

Ontario

Mon 4/27

6:05 am-1:52 pm

2 stops29h 47m

$707

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

Sun 3/1

9:00 am-9:05 pm

1 stop15h 05m

Ontario

Thu 3/5

10:20 pm-8:00 pm

1 stop18h 40m

$849

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

Tue 3/31

2:59 pm-10:26 pm

2 stops33h 27m

Ontario

Tue 4/7

6:05 am-1:52 pm

2 stops29h 47m

$958

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

Wed 4/22

9:00 am-9:00 pm

1 stop14h 00m

Ontario

Mon 4/27

7:05 am-8:00 pm

1 stop10h 55m

$976

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

Sun 3/1

7:32 am-10:29 pm

2 stops17h 57m

Ontario

Thu 3/5

6:00 am-8:08 pm

2 stops11h 08m

$1,055

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

Thu 4/2

2:59 pm-9:50 pm

2 stops32h 51m

Ontario

Thu 4/9

6:05 am-1:52 pm

2 stops53h 47m

$1,198

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

Tue 6/16

2:59 pm-5:28 pm

2 stops52h 29m

$403

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

Mon 5/11

2:59 pm-10:30 pm

2 stops33h 31m

$413

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

Mon 4/27

2:59 pm-9:50 pm

2 stops32h 51m

$413

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

Tue 3/10

3:00 pm-10:57 pm

2 stops33h 57m

$451

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/17

Showing 1-10 of 17 results
1
2

Compare providers for flights from Kingston to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kingston to Ontario in February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Kingston-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kingston-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kingston-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Kingston-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Kingston-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Kingston to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Kingston 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 Kingston to Ontario

What is the cheapest month to book a flight from Kingston to Ontario?

Currently, July is the cheapest month in which you can book a flight from Kingston to Ontario (average of $260). Flying from Kingston to Ontario in June is currently the most expensive (average of $471). 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 Kingston to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Kingston to Ontario?

    United Airlines and Delta can get you from Kingston to Ontario in just under 14h. Your travel time can differ by up to 9h 21m. There are 2744 mi between Kingston and Ontario. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Kingston to Ontario that include hotel bookings?

    Yes. In addition to deals on Kingston to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kingston to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kingston to Ontario.

  • Can I find deals for business class flights from Kingston to Ontario?

    Yes. Cheapflights offers flight deals from Kingston to Ontario 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 Kingston to Ontario?

    Currently, July is the cheapest month in which you can book a flight from Kingston to Ontario (average of $260). Flying from Kingston to Ontario in June is currently the most expensive (average of $471). 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.

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