C$ 183 Find Cheap Flights from Missouri to Ontario

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Good to know

Low seasonFebruary
High seasonAugust
Cheapest flightC$ 183
Best time to beat the crowds (21% less expensive on average)
Most popular time to fly and prices are also 11% lower on average.
Flight from Kansas City to Toronto

FAQs for booking flights from Missouri to Ontario

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

    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 Missouri to Ontario.

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

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

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

    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 from Missouri to Ontario with an airline and back with another airline.

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

    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 from Missouri to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Ontario?

    Based on KAYAK data, the cheapest day to fly to Ontario is Thursday when round-trip tickets can be as cheap as C$ 352. On the other hand, the most expensive day to fly is Sunday, when round-trip prices are C$ 914 on average.

  • What is the cheapest time of day to fly to Ontario?

    The cheapest time of day to fly to Ontario is generally in the afternoon, when round-trip flights cost C$ 429 on average. Morning departures are around 13% more expensive than evening flights, on average. The most expensive time of day to fly to Ontario is generally in the morning, which is peak travel time and where the average cost of a ticket is C$ 565.

  • What is the cheapest flight to Ontario?

    The cheapest ticket to Ontario from Missouri found in the last 72 hours was to Toronto Pearson Intl Airport, at C$ 170 round-trip. The most popular route is Kansas City (MCI) to Toronto Pearson Intl Airport (YYZ) and the cheapest round-trip airline ticket found on this route in the last 72 hours was C$ 170.

  • What is the cheapest month to fly from Missouri to Ontario?

    The cheapest month for flights from Missouri to Ontario is October, when tickets cost C$ 728 (return) on average. On the other hand, the most expensive months are November and July, when the average cost of round-trip tickets is C$ 1,142 and C$ 1,033 respectively.

  • How far in advance should I book a flight from Missouri to Ontario?

    To get a below-average price on the flight from Missouri to Ontario, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

  • How long is the flight to Ontario?

    An average direct flight from Missouri to Ontario takes 13h 48m, covering a distance of 2342 km. The shortest route is St. Louis (STL) to Toronto Pearson Intl Airport (YYZ) with an average flight time of 1h 55m.

  • What are the most popular destinations in Ontario?

    Based on KAYAK flight searches, the most popular destination is Ottawa (75% of total searches to Ontario). The next most popular destination is London (25%).

Reviews of the top airline flying from Missouri to Ontario

 
Need help choosing which airline to fly with from Missouri to Ontario? 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.
7.1
Air CanadaOverall score based on 9681 reviews
7.1Comfort
7.8Crew
7.3Boarding
6.8Entertainment
6.3Food
Airline reviews

We had a very long delay. First the inbound flight took a while, then maintenance, they “fixed it” to then do boarding and leave the gate, and waste a lot of time to have to go back to the gate and eventually deplane. Had to wait for a new aircraft, wait for a gate, and do the whole thing again. Instead of leaving at 9:50am we left until past 1. I could’ve not woken up at 5am, or spend some more time with my family if they gave more grace period of time between flights to give some time in case of any issues. But they have to make all and every dollar possible

4.0 OkayAnonymous, Jul 2025DEN - YYZ
Read more Air Canada reviews

We had a very long delay. First the inbound flight took a while, then maintenance, they “fixed it” to then do boarding and leave the gate, and waste a lot of time to have to go back to the gate and eventually deplane. Had to wait for a new aircraft, wait for a gate, and do the whole thing again. Instead of leaving at 9:50am we left until past 1. I could’ve not woken up at 5am, or spend some more time with my family if they gave more grace period of time between flights to give some time in case of any issues. But they have to make all and every dollar possible

Abandoned me in hallway in a wheelchair… which I asked for because I sprained my back. After waiting in the hallway, I decided to walk the rest of the way since someone respecting me up.. My experience with the united was totally the opposite. Wheelchair access, propped swift and save me a lot of grief. Air Canada totally disorganized.

Bad experience boarding and flight got delayed didn’t make it to my next flight

The food on the trip Toronto to Athens could be better: the chicken didn’t taste good.

Conflicting information provided about baggage allowance. One screen said I had a carry on and another said I didnt.

Flight was delayed but the real issue is how long we sat after boarding. Space very limited for an overnight flight and seatbacks didn’t recline so it was almost impossible to sleep.

The staff made sure I was comfortable, moved me to a better seat with more leg room

Somehow, my booking was under my preferred name instead of my legal name so they almost didn’t let me board the plane at LAX. This problem should have been notified to me when I was still in Toronto.

When arriving over 2 hours early to check k in at Charlotte airport I was told I would have to check my carry on ? Apparently the flight was full and may not be room. I was not given a choice and the agent was quite unpleasant about it. I am a senior amd was not comfortable me having to worry about my bag being lost vut it didn’t seem to bother him. There were lots and lots of people of all ages in line when we boarded with carryons and most larger than mine .the rest of my journey was pleasant vut this was totally unacceptable.

The layover was 6 PLUS hours and we were only given a $15.00 voucher. We missed our first activity in Quebec due to the delay.

Book cheap flights from Missouri to Ontario

Recent round-trip flight deals

5/8Tue
3 stops
22h 51mMCI-YYZ
9/8Sat
1 stop
11h 39mYYZ-MCI
C$ 444
9/9Tue
1 stopAmerican Airlines
7h 21mSTL-YYZ
13/9Sat
1 stopAmerican Airlines
16h 23mYYZ-STL
C$ 450
9/9Tue
1 stopAmerican Airlines
7h 21mSTL-YYZ
13/9Sat
1 stopAmerican Airlines
8h 01mYYZ-STL
C$ 451
30/7Wed
2 stops
14h 40mMCI-YYZ
6/8Wed
1 stop
18h 32mYYZ-MCI
C$ 459
7/8Thu
1 stopAir Canada
7h 14mSTL-YYZ
10/8Sun
directAir Canada
2h 06mYYZ-STL
C$ 474
9/8Sat
directAir Canada
2h 00mSTL-YYZ
9/8Sat
1 stopAir Canada
6h 00mYYZ-STL
C$ 508
3/9Wed
1 stopUnited Airlines
9h 51mSTL-YUL
13/9Sat
1 stopUnited Airlines
8h 24mYUL-STL
C$ 548
8/9Mon
1 stopUnited Airlines
16h 10mSTL-YUL
12/9Fri
1 stopUnited Airlines
17h 00mYUL-STL
C$ 552
18/7Fri
1 stopDelta
4h 33mSTL-YYZ
22/7Tue
1 stopDelta
4h 56mYYZ-STL
C$ 561
4/9Thu
1 stopDelta
9h 07mSTL-YUL
9/9Tue
1 stopDelta
10h 29mYUL-STL
C$ 587

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Recent one-way flight deals

24/7Thu
3 stops
23h 52mMCI-YYZ
C$ 183
24/7Thu
2 stops
17h 44mMCI-YYZ
C$ 185
24/9Wed
1 stopAmerican Airlines
7h 21mSTL-YYZ
C$ 187
14/10Tue
1 stopAmerican Airlines
14h 47mSTL-YUL
C$ 187
30/7Wed
directAir Canada
2h 00mSTL-YYZ
C$ 233
2/8Sat
directAir Canada
2h 00mSTL-YYZ
C$ 243
23/9Tue
2 stopsUnited Airlines
14h 31mSTL-YUL
C$ 248
29/7Tue
2 stopsUnited Airlines
9h 46mSTL-YYZ
C$ 252
28/8Thu
1 stopDelta
9h 10mSTL-YYZ
C$ 266
14/10Tue
2 stopsDelta
11h 51mSTL-YUL
C$ 356

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Last minute flights from Missouri to Ontario

Last minute flight, train and bus deals

7/7Mon
multi-stop
18h 33mMCI-YYZ
18/7Fri
multi-stop
9h 02mYYZ-MCI
C$ 646
7/7Mon
multi-stop
32h 05mMCI-YYZ
18/7Fri
multi-stop
9h 02mYYZ-MCI
C$ 677
5/7Sat
multi-stopAmerican Airlines
10h 20mSTL-YYZ
25/7Fri
multi-stopAmerican Airlines
6h 40mYYZ-STL
C$ 812
5/7Sat
multi-stopAmerican Airlines
10h 20mSTL-YYZ
25/7Fri
multi-stopAmerican Airlines
5h 34mYYZ-STL
C$ 814
8/7Tue
multi-stopUnited Airlines
6h 47mMCI-YYZ
12/7Sat
multi-stopUnited Airlines
4h 29mYYZ-MCI
C$ 857
7/7Mon
multi-stopDelta
6h 40mSTL-YYZ
10/7Thu
multi-stopDelta
7h 27mYYZ-STL
C$ 1,033
5/7Sat
multi-stopDelta
9h 14mSTL-YYZ
25/7Fri
multi-stopDelta
6h 28mYYZ-STL
C$ 1,045
4/7Fri
multi-stopUnited Airlines
10h 21mMCI-YUL
9/7Wed
multi-stopUnited Airlines
6h 33mYUL-MCI
C$ 1,221
5/7Sat
directAir Canada
2h 00mSTL-YYZ
25/7Fri
multi-stopAir Canada
5h 20mYYZ-STL
C$ 1,409
5/7Sat
directAir Canada
1h 58mSTL-YYZ
25/7Fri
multi-stopAir Canada
6h 50mYYZ-STL
C$ 1,411

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Everything you need to know for your flight to Ontario

Cabin class types available on flights to Missouri

Cabin classes available on flights to Missouri. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights to Ontario
Business Class flights to Ontariofrom C$ 2,494
Prem Econ Class flights to Ontariofrom C$ 5,400
Economy Class flights to Ontariofrom C$ 232

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