$160 Find Cheap Flights from Ontario to Missouri

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Good to know

Low seasonJune
Cheapest flight$160
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 13% increase in price.
Flight from Toronto to Kansas City

FAQs for booking flights from Ontario to Missouri

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

    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 Missouri.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to Missouri 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 Missouri?

    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 Ontario to Missouri 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 Ontario to Missouri?

    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 Ontario to Missouri 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 Missouri?

    There are 8 airports in Missouri. The busiest airport is St. Louis Lambert Airport (STL), with 48% of all flights arriving there.

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

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Missouri is Lambert-St Louis Airport (STL), with an average flight price of $343.

  • What is the cheapest day to fly to Missouri?

    Based on KAYAK data, the cheapest day to fly to Missouri is Saturday where round-trip tickets can be as cheap as $405. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $541 on average.

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

    The cheapest time of day to fly to Missouri is generally in the morning, when round-trip flights cost $326 on average. Morning departures are around 20% cheaper than evening flights, on average. The most expensive time of day to fly to Missouri is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $480.

  • What is the cheapest flight to Missouri?

    The cheapest ticket to Missouri from Ontario found in the last 72 hours was to St. Louis, at $465 round-trip. The most popular route is Toronto Pearson Intl Airport (YYZ) to St. Louis (STL) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $465.

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

    The cheapest month for flights from Ontario to Missouri is March, when tickets cost $479 (return) on average. On the other hand, the most expensive months are August and June, when the average cost of round-trip tickets is $634 and $633 respectively.

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

    To get a below average price on the flight from Ontario to Missouri, you should book around 4 weeks before departure, which saves you about 54% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

  • How many cities have direct flights to Missouri?

    From Ontario, there are direct flights to Missouri from 1 city. This city is Toronto and there are 42 direct flights each week.

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

    There are around 6 direct flights from within Ontario to Missouri every day. Most flights (67%) depart in the afternoon.

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

    Each week there are around 42 direct flights from within Ontario to Missouri. The most common day for departures is Monday, with 14% of flights taking off on this day.

  • How long is the flight to Missouri?

    An average nonstop flight from Ontario to Missouri takes 7h 03m, covering a distance of 910 miles. The shortest route is Toronto Pearson Intl Airport (YYZ) to St. Louis (STL) with an average flight time of 2h 03m.

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

    There are not any long-haul (6-12 hour flight duration) or medium-haul (3-6 hour flight duration) flights to Missouri. Instead, there are 42 short-haul flights (up to 3 hour flight duration), with the most arriving from Toronto.

  • What are the most popular destinations in Missouri?

    Based on KAYAK flight searches, the most popular destination is St. Louis (71% of total searches to Missouri). The next most popular destinations are Kansas City (26%) and Joplin (1%). Searches for flights to Springfield (1%) are also popular.

Reviews of the top 4 airlines serving from Ontario to Missouri

 
Need help choosing which airline to fly with from Ontario to Missouri? 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.
7.9
DeltaOverall score based on 7979 reviews
7.9Entertainment
7.9Comfort
7.3Food
8.5Crew
8.2Boarding
Airline reviews

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

6.0 GoodDavid, Oct 2025LAX - JFK
Read more Delta reviews

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Crew blocked exits to front of ship with galley carts. Also split five person family apart on international flight without fixing.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

The boarding process needs to be refined. Sometimes the gate crew calls out the zones and then flip to showing the.zones boarding on the gate monitor display. So, unless you are huddled around the gate lanes watching the monitor, you could miss your boarding zone. Suggest the zones be announced each time a new zone is allowed to board.

The boarding process needs to be refined. Sometimes the gate crew call out the boarding zone, and then flip to the monitor to show which zones are boarding. So unless everyone is gathered around to see the monitor there is usually confusion as wi which zones are boarding.

On time flight. Seat comfort could be better in the Comfort section.

The food quality sucks. One must starve if they do not eat flesh Or wheat based products Some variety would be expected. The trivial amount of snacks and or food is inhumane

We Left Calgary 1/2 hour late and that made for a tight connection in Denver. After arriving everything was done to help us make our connection. That was a great effort. Thank You United

Efficient all round, very good crew. Short flight so the food, of course, was just snacks

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

My flight was delayed about 1 1/2 hours in Chicago, but other then that it was a good flight.

The experience was great, the crew was very polite and hospitable. I will definitely make if my go to airlines.

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

Efficient, calm when things were delayed and kept us regularly informed of what was happening.

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

Very nice and clean plane. Transit time between flights was tight though

Typically flights with AA are good. The staff are pleasant, welcoming, and efficient.

A couple ladies from the crew were so rude and nasty. Thought they were mad at having to be there especially if you asked a question. This will make me think twice next time if I book a flight with you.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

Poor seat in rear of aircraft Food at Admiral’s Club Terminal D at DFW inedible

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Flight was delayed because of a bird strike. They had another plane available within 45 minutes.

The business class seats are dated and uncomfortable. The space is bare minimum and there is absolutely no privacy. For $4K, this is not what I expect.

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

It was a typical flight. We had a delay which seems to be the normality now. And we had no in flight service due to conditions.

Flight attendants on this flight were very attentive and friendly

Extremely turbulent landing. Crew was friendly and plane comfortable. Airport and US pre clearance was understaffed

The airplane is way too tight, you can hardly enter into your row to sit.. more like kids seats than adults.

Wifi was great. Kind air crew and comfortable seating. Also liked the entertainment options.

First message when all on board was that we didnt have a pilot, then they found one, then it was something about the bridge something not working, they will either fix or do manually. Flight of course was leaving late with all the cruise guests worrying about making it to their ship in time. Then only some luggage made it off the ship. Around 15 to 20 people waiting. 45 min later arrived except mine. I asked the rep at the luggage conveyor, he asked me my name. Then said it was not picked up with the first batch so they put it in a room. I was going to take public transport but now worried about time so took a taxi that cost me $65 USD

The flight was very smooth and good. Boarding was fast, but the staff was just decently friendly.

Air Canada flight staff are in contact negotiations and they are less than happy and it show. The process of self checking baggage is less than desirable with lack of support staff to help

A sandwich and a drink would have been better thank a snack bar...

I liked the behaviour of the crew members.The flight was good.

I swear airplane seats keep getting smaller and smaller but everything else was great. Smooth sailing and we got in early.

No food to provide, they forgot that, in some cases, people stay at the airport for hours without food. Now, to provide them with food, they have to ask them to pay, because some don't have money. That way, they can't eat.

Everything you need to know for your flight to Missouri

Cabin class types available on flights to Ontario

Cabin classes available on flights to Ontario. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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