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$163 Find Cheap Flights from Ontario to Missouri

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Missouri departing on 10/31. 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
0 bags

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Good to know

Low season

January

High season

November

Cheapest flight

$163
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly and prices are also 5% lower on average.
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 to Missouri 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 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 to Missouri with an airline and back to Ontario 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 to Missouri from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

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.
8.1
Singapore AirlinesOverall score based on 1336 reviews
8.6Crew
8.1Entertainment
8.3Boarding
8.0Comfort
7.7Food
Airline reviews

My groups frequent flyer star allianceUnited airline miles was not accepted. The Singapore premium economy bag had to be requested, it was very lacking- no toothbrush. I paid more than double than economy but could only use the bathrooms sharing with economy which was hardly available and had to wait in line. Is the 2X $ worth it just for a larger seat???? It is questionable. Seats were not that comfortable. My husband’s seat had white stains on it- had to wipe it down. Our headphones did not have covers on it. Food- way too much.

8.0 ExcellentFannie, Oct 2024NRT - LAX
Read more Singapore Airlines reviews

My groups frequent flyer star allianceUnited airline miles was not accepted. The Singapore premium economy bag had to be requested, it was very lacking- no toothbrush. I paid more than double than economy but could only use the bathrooms sharing with economy which was hardly available and had to wait in line. Is the 2X $ worth it just for a larger seat???? It is questionable. Seats were not that comfortable. My husband’s seat had white stains on it- had to wipe it down. Our headphones did not have covers on it. Food- way too much.

The booking experience was bad. Our six character booking ID number disappeared the day before the flight, We could not find out what happened or what was the status of our flight, scheduled for the next day. We finally found the right number to contact Singapore Airlines on the matter (not easy). The Singapore agent worked through the issue in a little over thirty minutes on the phone, the day before the flight. That was great. I'm very happy with Singapore Airlines and their performance. Contact with a competent person on the matter was near impossible. It seems no one in business these days wants to deal with customers once they've pocketed the money. There were resellers, including Kayak, involved in the chain. When we finally got through to Underpricer, we did get a return call that could have proved helpful. But by that time the matter had been resolved by the Singapore agent. Majestic Vacations, the reseller who received the payment was less than worthless. That's just a fast buck operation. Ugh.

Fantastic patience when one of the passengers behind me was an absolute horrible, horrible person and the girls just kept smiling and doing their job with patience and kindness. Well, done to the crew.

Didn't like much at all Nowhere near enough legroom, narrow seats. Aisles not wide enough for safe food trolley access and husband had his knee hit cos not enough leg room. Would take a lot to convince us to fly Singapore Airlines again which is a pity cos it was always our go-to airline

A 16 hour flight from Singapore to Los Angeles had only 2 meals. Please make it 3 meals.

Overall good experience, convenient Changi Airport, even the layover was long.

Singapore Airlines from Mumbai was late, we were rerouted to Copenhagen and then to Los Angeles. As senior citizens, we should have been given a hotel voucher for a night and fly out the next day. I hope Singapore Airlines should give us a credit in good faith if they want us to fly with them. I doubt it, but you never know.

I loved the comfort of the flight and the hospitality of the flight attendants!

I had to change a flight date and it cost me $800.00 dollars. In the past, if there was room on the flight(which there was), Singapore Airlines simply re-booked me. This might have occurred because the office in Bali where I could interface with a human face to face is now closed since COVID. I naively figured the ability to change my flight into my decision to go with Singapore Airlines as it does cost a bit more. I will still fly on them as they are superior to the other carriers by a fairly large margin, especially for my needs.

I was traveling with my 3 minor children, one leg I was seated two aisles behind them. On the longest leg I would have preferred sitting across the aisle from them, not behind. My youngest is 4yos. I understand airplane seating configurations are not the airlines problem but seating the one adult with a reservation apart from the minors was very difficult.

They charged me $900 to board my flight I already paid for just because I missed my previous flight. I do not recommend this airline by any means.

Not good. Small seats. Not enough food that customers wanted. No special requests were given that i could see. Slow response from flight attendants

For a transpacific flight, flying economy is awful! The seats are cramped and its meant for petite folks! Good luck if you have long legs. BOARDING - AWFUL, we got to Hong Kong - the gate was listed, but upon arrival, there was a MESS of boarding procedures, they basically DIY'ed how to board but making three lines and putting three ground crew to check for passports in the terminal area. THEN to make it worse, after going through that cattle process, all of a sudden you see people standing and looking confused, apparently we were told to get in line to board, but the AV notification wasnt even working. So people started cramming in line - worse than cattle. One saving point, the flight crew forgot to serve me dinner and after waiting for it, I fell asleep since this was a midnight flight. After letting a crew know that I was forgotten, all of my meals were served first !!! Yay for being in the economy seats! Nothing much to write home about once more!

Bathroom was not cleaned as often as other airlines does. It was gross for a less than full flight capacity.

The crew is amazing, very attentive. They went above and beyond when we had a small spill. the food on this trip was not nearly as good as other Cathay flights. The economy seats are very comfortable, but when the person in front of yo reclines, you need to recline to see your screen or be comfortable.

Cathay Pacific helps me with the planning due to weather delays. Well planed flights.

Flight crew went above and beyond to make sure the flight was enjoyable for us!

Both my husband and I ordered the fish for dinner and we both got sick and throwing up on the plane. I don’t think the seafood was handled properly and I for sure will not order fish the next time around.

Im now late to my appointment because of delayed flight

Dinner was served at the wrong time as soon as we boarded. Most were sleeping.. there was no food service carts for hours. We had to specifically ask for water, snacks etc. for the 15 hour plus flight, there should have been 3 meals served. Instead we only got the breakfast 1 hour before landing. Will try other airlines like Qatar for future travels.

Boarding took forever. It's also weird that we paid more (for preferred seats) to get on the plane last. Inflight WiFi never worked the entire trip. I want my money back.

The cosmetic condition was pretty run down. The carpets were badly worn out. Even the paint on the wings was chipped and peeled! Looks like they are running these 787s to the ground..

WiFi didn’t work on both sectors so made killing time harder - planes clean modern and good flight crew - would do again if WiFi works

6hrs fly they dont give you a glass of water from seoul to singapore need to buy drink and food plus they charge for bag on international fly is always Free 1 bag from seoul to singapore is Not a local fly you are traveling true asia same story from singapore to Bali no water drink after payment for bag drink cost more the regular airline Well never use this company again we use regular company like Delta korea japan China and even scoot parent company Singapore Air

We had 2 attempts to land at Singapore Changing during a thunderstorm. Everything was delayed by 1 hour plus.

Boarding was not accordingly after front seat, bmf then back seat. This delayed for at least 40mins or more. The staff at Jakarta can do better. Is chaos at the entry to board the plane. This tarnished Scoot reputation when everyone was talking about it.

The crew was not customer oriented at all, even confrontational . The aircraft needs more attention to detail as far as comfort, and the 1 hour sitting at the gate with no air is inexcusable

We flew on the 787 Dreamliner direct to main gate at KLIA2, quick entry via eGate and on the train 41mins after touchdown. Go well SCOOT

Was on scoot plus. The only good thing about the flight was the spacious seats. Tables and armrests were extremely dirty Food: bad Entertainment: non existent Wifi: unable to connect, then was painfully slow that we couldn’t even send messages Good thing we had a night flight, so we just slept throughout.

Not clear why boarding passes could only be issued at the counter and not through the kiosk. I had already check-in on the web, so waiting to obtain a boarding pass 1.5 hours before the actual flight defeats the purpose of early web check-in.

Delay flight more than 8hours waiting and poor customer service!

Plane was extremely small so mind the size of your carry on

Other than lack of snacks, everything else went very well.

They don’t keep you updated on the flight status very well. It was late but nothing said

Pros: "Nothing!!! Horrible airline with horrible staff members."
Cons: "Everything. The staff and crew of Intercaribbean airlines are very unprofessional and not helpful at all. On top of the flight delays all the luggage for that particular flight was left in Kingston. Everybody was rather nonchalant and unapologetic about the situation. I was told I would get the the following day. The next day only two of my three bags showed up. I was not compensated for the inconvenience and was told point blank that they will only deliver one of my bags to my address even though they were the reason I had NONE of my luggage in the first place. They are disgusting!!! I would never recommend this airline to anyone."
Pros: "Nice people"
Cons: "A long walk to the D3 gate, but there were no amenities there I.e. snacks (to be fair a new terminal is under construction)"
Cons: "There was no air. I understand when you are on the ground it can be limited but even after getting to altitude there was no air conditioning."
Cons: "The flight was delayed for over three hours, apparently it is a regular occurence."

Book cheap flights from Ontario to Missouri

Recent round-trip flight deals

11/2Sat
1 stop
10h 54mYYZ-MCI
11/5Tue
1 stop
11h 21mMCI-YYZ
$284
11/2Sat
1 stop
10h 54mYYZ-MCI
11/5Tue
1 stop
11h 21mMCI-YYZ
$289
12/4Wed
1 stopUnited Airlines
16h 35mYUL-MCI
12/10Tue
1 stopUnited Airlines
10h 08mMCI-YUL
$291
10/19Sat
2 stopsUnited Airlines
8h 48mYUL-MCI
10/21Mon
2 stopsUnited Airlines
14h 31mMCI-YUL
$292
12/2Mon
1 stopDelta
6h 48mYUL-MCI
12/10Tue
1 stopDelta
4h 22mMCI-YUL
$320
11/28Thu
1 stopWestJet
5h 43mYUL-MCI
11/30Sat
1 stopWestJet
15h 56mMCI-YUL
$331
12/3Tue
2 stopsWestJet
10h 44mYUL-MCI
12/10Tue
1 stopWestJet
8h 45mMCI-YUL
$345
12/24Tue
2 stopsAmerican Airlines
19h 11mYUL-MCI
1/2Thu
1 stopAmerican Airlines
5h 20mMCI-YUL
$397
10/29Tue
1 stopAmerican Airlines
10h 13mYUL-STL
10/31Thu
1 stopAmerican Airlines
23h 50mSTL-YUL
$440
11/1Fri
1 stopDelta
6h 37mYYZ-STL
11/3Sun
1 stopDelta
5h 05mSTL-YYZ
$467

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Recent one-way flight deals

10/31Thu
1 stop
17h 50mYYZ-MCI
$163
10/31Thu
3 stops
19h 40mYYZ-MCI
$164
12/7Sat
1 stopAir Canada
9h 03mYUL-MCI
$175
11/28Thu
1 stopDelta
5h 43mYUL-MCI
$176
11/28Thu
1 stopWestJet
7h 11mYUL-MCI
$203
11/28Thu
2 stopsWestJet
13h 16mYUL-MCI
$209
1/14Tue
2 stopsUnited Airlines
14h 30mYUL-MCI
$212
11/8Fri
1 stopUnited Airlines
13h 11mYYZ-MCI
$251
11/14Thu
nonstopAir Canada
2h 16mYYZ-STL
$252
12/31Tue
1 stopDelta
10h 06mYUL-MCI
$282

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Last minute flights from Ontario to Missouri

Last minute flight, train and bus deals

10/14Mon
multi-stopDelta
8h 20mYUL-MCI
10/21Mon
multi-stopDelta
7h 50mMCI-YUL
$358
10/14Mon
multi-stopUnited Airlines
16h 20mYUL-MCI
10/21Mon
multi-stopUnited Airlines
14h 31mMCI-YUL
$420
10/12Sat
multi-stop
10h 51mYYZ-STL
10/14Mon
multi-stop
28h 47mSTL-YYZ
$640
10/14Mon
multi-stop
22h 31mYUL-STL
10/22Tue
multi-stop
20h 49mSTL-YUL
$689
10/10Thu
multi-stopAmerican Airlines
7h 24mYYZ-SGF
10/17Thu
multi-stopAmerican Airlines
7h 30mSGF-YYZ
$721
10/14Mon
multi-stopAmerican Airlines
10h 26mYUL-MCI
10/21Mon
multi-stopAmerican Airlines
9h 23mMCI-YUL
$773
10/14Mon
multi-stopWestJet
8h 40mYUL-STL
10/18Fri
multi-stopWestJet
12h 33mSTL-YUL
$798
10/14Mon
nonstopAir Canada
2h 35mYUL-STL
10/22Tue
multi-stopAir Canada
5h 11mSTL-YUL
$829
10/14Mon
nonstopAir Canada
2h 05mYYZ-STL
10/19Sat
nonstopAir Canada
1h 54mSTL-YYZ
$876
10/14Mon
multi-stopWestJet
8h 56mYUL-STL
10/22Tue
multi-stopWestJet
27h 05mSTL-YUL
$890

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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.