ONT - KIN

$665 Find Cheap Flights from Ontario to Kingston

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Kingston departing on 10/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Kingston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Kingston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Kingston, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Ontario to Kingston (ONT-KIN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Kingston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Kingston

Mon, Oct 6 - Fri, Oct 10
JetBlue Logo
11:00 pm - 6:34 pmONT-KIN
17h 34m1 stop
JetBlue Logo
9:05 am - 9:41 pmKIN-ONT
14h 36m1 stop
$665JetBlue
Find Deal
Thu, Oct 2 - Thu, Oct 9
Delta Logo
7:00 am - 7:55 pmONT-KIN
10h 55m1 stop
Delta Logo
9:05 am - 7:42 pmKIN-ONT
12h 37m1 stop
$671Delta
Find Deal
Thu, Oct 2 - Tue, Oct 7
Delta Logo
7:00 am - 7:55 pmONT-KIN
10h 55m1 stop
Delta Logo
9:05 am - 11:46 pmKIN-ONT
16h 41m2 stops
$676Delta
Find Deal
Fri, Oct 3 - Fri, Oct 10
JetBlue Logo
11:00 pm - 6:34 pmONT-KIN
17h 34m1 stop
JetBlue Logo
9:05 am - 9:41 pmKIN-ONT
14h 36m1 stop
$694JetBlue
Find Deal
Fri, Oct 3 - Tue, Oct 7
JetBlue Logo
11:00 pm - 6:34 pmONT-KIN
17h 34m1 stop
JetBlue Logo
9:05 am - 9:41 pmKIN-ONT
14h 36m1 stop
$701JetBlue
Find Deal
Sun, Aug 24 - Wed, Sep 3
United Airlines Logo
6:04 am - 1:53 pmONT-KIN
53h 49m2 stops
United Airlines Logo
2:57 pm - 10:30 pmKIN-ONT
33h 33m2 stops
$953United Airlines
Find Deal
Tue, Sep 16 - Wed, Sep 24
United Airlines Logo
6:04 am - 1:53 pmONT-KIN
29h 49m2 stops
United Airlines Logo
2:57 pm - 9:56 pmKIN-ONT
32h 59m2 stops
$964United Airlines
Find Deal
Sat, Oct 4 - Thu, Oct 9
Air Canada Logo
6:38 pm - 12:35 pmONT-KIN
39h 57m2 stops
Air Canada Logo
1:45 pm - 10:52 pmKIN-ONT
35h 07m2 stops
$1,238Air Canada
Find Deal
Wed, Oct 1 - Thu, Oct 9
Air Canada Logo
9:35 am - 12:35 pmONT-KIN
25h 00m2 stops
Air Canada Logo
1:45 pm - 5:32 pmKIN-ONT
29h 47m2 stops
$1,259Air Canada
Find Deal
Wed, Jun 11 - Sun, Jun 22
 Logo
5:10 am - 8:45 pmONT-KIN
13h 35m2 stops
 Logo
8:05 am - 9:04 pmKIN-ONT
38h 59m2 stops
$5,551
Find Deal
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KAYAK's insights & trends for Ontario to Kingston flights

Get data-powered insights and trends into flights from Ontario to Kingston to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Ontario to Kingston?

The average price of all round-trip flights from Ontario to Kingston clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Kingston on a Tuesday and more expensive on a Friday. On your return trip to Ontario, you should consider flying back on a Thursday, and avoid Fridays for better deals.

Good to know

Cheapest flight$665
Flight from Ontario to Kingston

When to book flights from Ontario to Kingston

Are your dates flexible? Find out the best times to travel from Ontario to Kingston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Kingston

  • What is the cheapest flight from Ontario to Kingston?

    In the last 3 days, the lowest price for a flight from Ontario to Kingston was $2,349 for a one-way ticket and $665 for a round-trip.

  • Do I need a passport to fly between Ontario and Kingston?

    Yes, you’ll need a passport to travel to Kingston from Ontario.

  • Which aircraft models fly most regularly from Ontario to Kingston?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Kingston?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Ontario and Kingston, with Star Alliance being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Ontario to Kingston?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Kingston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Kingston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kingston from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Kingston?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Kingston with an airline and back to Ontario with another airline. Booking your flights between Ontario and KIN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Kingston?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Kingston from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Ontario to Kingston

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Kingston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Kingston? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
American AirlinesOverall score based on 10000 reviews
6.9Entertainment
8.0Crew
7.5Boarding
7.2Comfort
6.5Food
Airline reviews

Eventless. It was a good flight and good crew. Can’t complaint.

10.0 ExcellentFraxys, May 2025SMF - DFW
Read more American Airlines reviews

Eventless. It was a good flight and good crew. Can’t complaint.

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

British Airways staff are very polite and willing to help.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

Worst seats I’ve ever had !!! The seats were very narrow and uncomfortable and misaligned with the seats in front of mine leading to bottom of the seat in front of mine pressing on my legs for 15.5 hours !

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

The flight was quick and to the point. The crew just did their job w/o excessive talking and everything was just perfect.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

Amazingly comfy flight - I had upgraded for a reasonable price and it was worth it. The food also was good.

Everything you need to know for your flight from Ontario to Kingston

Information on your arrival and departure airports

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