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$331+ 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 7/20. Fares are subject to change and may not be available on all flights or dates of travel.
KIN — ONT
juin 17 — juin 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap 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 juin 12, 2025.

Round-trip from

$660
(American Airlines)

One-way from

$331
(JetBlue)

Popular in

May

Cheapest in

June

Average price

$481
From Kingston Norman Manley to Ontario
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One-way flight from Kingston Norman Manley to Ontario
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Highest demand for flights based on searches. 4% potential increase in price ($28 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 juin 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/10. 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.
ven. 9/56:00 amKIN - ONT
2 stops18h 33mAmerican Airlines
lun. 9/812:46 pmONT - KIN
2 stops21h 06mAmerican Airlines
Deal found 6/10$660
This JetBlue deal was found by Cheapflights users on 6/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 9/59:16 amKIN - ONT
1 stop14h 13mJetBlue
lun. 9/810:56 pmONT - KIN
1 stop18h 10mJetBlue
Deal found 6/10$680
This Delta deal was found by Cheapflights users on 6/10. 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.
ven. 9/59:25 amKIN - ONT
2 stops15h 15mDelta
lun. 9/87:05 amONT - KIN
1 stop11h 20mDelta
Deal found 6/10$755
This United Airlines deal was found by Cheapflights users on 6/10. 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.
mar. 6/172:57 pmKIN - ONT
3 stops23h 34mUnited Airlines
mar. 6/246:00 amONT - KIN
2 stops29h 53mUnited Airlines
Deal found 6/10$1,056

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 juin 12, 2025.
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

ven. 9/5

6:00 am-10:33 pm

2 stops18h 33m

Ontario

lun. 9/8

12:46 pm-11:52 am

2 stops21h 06m

$660

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

ven. 9/5

9:16 am-9:29 pm

1 stop14h 13m

Ontario

lun. 9/8

10:56 pm-7:06 pm

1 stop18h 10m

$680

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

ven. 9/5

9:25 am-10:40 pm

2 stops15h 15m

Ontario

lun. 9/8

7:05 am-8:25 pm

1 stop11h 20m

$755

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

dim. 7/20

9:29 am-9:59 pm

1 stop14h 30m

$331

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

sam. 7/26

6:25 pm-8:52 pm

3 stops52h 27m

$420

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

lun. 7/7

6:00 am-9:38 pm

2 stops17h 38m

$518

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

mar. 6/24

2:57 pm-12:14 pm

2 stops47h 17m

$559

KingstonOntario

KIN - ONT

KINONT

Kingston Norman Manley

lun. 7/21

9:00 am-7:20 pm

1 stop12h 20m

$911

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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, August is the cheapest month in which you can book a flight from Kingston to Ontario (average of $246). Flying from Kingston to Ontario in March is currently the most expensive (average of $328). 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated juin 12, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines and JetBlue from Kingston to Ontario to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
JetBlue
7.3
Good
2,925 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • What are the cheapest airlines flying from Kingston to Ontario round-trip?

    According to our current data, American Airlines ($660), JetBlue ($680), and Delta ($755) offers the cheapest pricing from Kingston to Ontario.

  • What are the cheapest airlines to fly from Kingston to Ontario one-way?

    $331 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $518 and $559, respectively.

  • 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, August is the cheapest month in which you can book a flight from Kingston to Ontario (average of $246). Flying from Kingston to Ontario in March is currently the most expensive (average of $328). 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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