C$ 254 Find Cheap Flights from Missouri to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Missouri to Ontario departing on 24/7. 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
1 adult, Economy, 0 bags

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Good to know

Low seasonJanuary
Cheapest flightC$ 254
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly (10% more expensive on average)
Flight from St. Louis 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.

  • How many airports are there in Ontario?

    There are 24 airports in Ontario. The busiest airport is Toronto Pearson Airport (YYZ), with 78% of all flights arriving there.

  • Which is the cheapest airport to fly into in Ontario?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Ontario is Toronto Pearson Intl Airport (YYZ), with an average flight price of C$ 287.

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

    The cheapest time of day to fly to Ontario is generally in the morning, when round-trip flights cost C$ 700 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$ 700.

  • What is the cheapest flight to Ontario?

    The cheapest ticket to Ontario from Missouri found in the last 5 days was to Toronto Pearson Intl Airport, at C$ 278 round-trip. The most popular route is St. Louis (STL) to Toronto Pearson Intl Airport (YYZ) and the cheapest round-trip airline ticket found on this route in the last 5 days was C$ 278.

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

    The cheapest month for flights from Missouri to Ontario is July, when tickets cost C$ 213 (return) on average. On the other hand, the most expensive months are April and September, when the average cost of round-trip tickets is C$ 387 and C$ 351 respectively.

  • How many cities have direct flights to Ontario?

    From Missouri, there are direct flights to Ontario from one city. This city is St. Louis and there are 28 direct flights each week.

  • How many direct flights to Ontario are there each day?

    There are around 4 direct flights from within Missouri to Ontario every day. Most flights (50%) depart in the morning.

  • How many direct flights to Ontario are there each week?

    Each week there are around 28 direct flights from within Missouri to Ontario. The most common day for departures is Monday, with 14% of flights taking off on this day.

  • How long is the flight to Ontario?

    An average direct flight from Missouri to Ontario takes 7h 54m, 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 51m.

  • How many long-haul flights are there to Ontario each week?

    There aren’t any long-haul (6-12 hour flight duration) or medium-haul (3-6 hour flight duration) flights to Ontario. Instead, there are 28 short-haul flights (up to 3 hour flight duration), with the most arriving from St. Louis.

  • 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 11160 reviews
7.8Crew
6.3Food
7.3Boarding
7.1Comfort
6.8Entertainment
Airline reviews

It was a short flight so, everything went smoothly and we got to where we needed to be safely.

10.0 ExcellentAnonymous, Jun 2026
IAD - YOW
Read more Air Canada reviews

It was a short flight so, everything went smoothly and we got to where we needed to be safely.

No TV on the flight. The charging outlet was not working. No food, even a sandwich. The served orange was poor quality.

Selected seats 5 months prior to date. Had email confirmation and seats were not honoured. Family did not sit together

They did not let us board because one member needed a transit visa, which was not evident at the time of ticket purchase.

I was charge a baggage checking fee $68!! I volunteered to check my duffle bag which usually goes under my seat!

I did not like anything because the flight was cancelled yesterday and I did not get to arrive on time in Toronto as I was rebooked with another airline. This caused me to be really stressed out as I am an individual with back injury and to be forced to stay longer in an airport to accommodate a change of airline and the transfers associated with it Due to this I am probably not going to book through your website to eliminate this potentially chaos in the future

shittiest airline in the hemisphere. To improve - start thinking you're flying people, not cattle

Easy boarding, inflight refreshments came on time and comfortable seat

It was good that our flight left early. It was a nice smooth flight and landing.

It was a problem because there was a delay where we sat before taking off from newark,then when landed in Toronto we sat on tarmac and they wouldn't let us out for a long period of time. When we finally were released to the airport in Toronto the attendant scanned our boarding pass that we were here for our connection to Brazil. We ran all the way to the gate and they said at the gate the door is shut so we can not let you on the plane. We explained that we were checked in by the attendant when we arrived at Toronto airport to go to Brazil and they should not have shut the door. We were ignored at the gate

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.