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Cheap flights from Missouri to Ontario from C$ 174

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Ontario departing on 19/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Missouri to Ontario

Cheap round-trip flights

Logo
2:55 p.m. - 2:05 p.m.MCI-YYZ
22h 10m2 stops
Logo
7:15 a.m. - 11:07 p.m.YYZ-MCI
16h 52m1 stop
C$ 425
Find Deal
Mon, 15 Sep - Thu, 18 Sep
Logo
5:15 a.m. - 11:41 p.m.MCI-YYZ
17h 26m1 stop
Logo
4:00 p.m. - 11:07 p.m.YYZ-MCI
8h 07m1 stop
C$ 436
Find Deal
Sat, 6 Sep - Sat, 13 Sep
American Airlines Logo
8:01 p.m. - 12:32 p.m.STL-YYZ
15h 31m1 stop
American Airlines Logo
3:11 p.m. - 9:53 p.m.YYZ-STL
7h 42m1 stop
C$ 477American Airlines
Find Deal
Tue, 2 Sep - Wed, 10 Sep
American Airlines Logo
6:10 a.m. - 4:33 p.m.STL-YUL
9h 23m1 stop
American Airlines Logo
5:15 p.m. - 9:26 a.m.YUL-STL
17h 11m1 stop
C$ 482American Airlines
Find Deal
Wed, 10 Sep - Mon, 15 Sep
Air Canada Logo
4:05 p.m. - 7:00 p.m.STL-YYZ
1h 55mdirect
Air Canada Logo
6:35 p.m. - 7:38 p.m.YYZ-STL
2h 03mdirect
C$ 605Air Canada
Find Deal
Thu, 4 Sep - Sun, 7 Sep
United Airlines Logo
3:20 p.m. - 11:58 p.m.STL-YYZ
7h 38m1 stop
United Airlines Logo
9:00 a.m. - 3:44 p.m.YYZ-STL
7h 44m1 stop
C$ 612United Airlines
Find Deal
Wed, 3 Sep - Tue, 9 Sep
Delta Logo
9:16 a.m. - 8:43 p.m.STL-YYZ
10h 27m1 stop
Delta Logo
6:44 p.m. - 7:56 a.m.YYZ-STL
14h 12m1 stop
C$ 645Delta
Find Deal
Wed, 3 Sep - Thu, 11 Sep
Air Canada Logo
1:30 p.m. - 11:14 p.m.STL-YYZ
8h 44m1 stop
Air Canada Logo
6:35 p.m. - 7:38 p.m.YYZ-STL
2h 03mdirect
C$ 657Air Canada
Find Deal
Thu, 4 Sep - Sun, 7 Sep
Delta Logo
6:00 a.m. - 11:43 p.m.STL-YYZ
16h 43m1 stop
Delta Logo
6:44 p.m. - 7:56 a.m.YYZ-STL
14h 12m1 stop
C$ 666Delta
Find Deal
Thu, 4 Sep - Thu, 11 Sep
United Airlines Logo
6:35 a.m. - 3:46 p.m.STL-YYZ
8h 11m1 stop
United Airlines Logo
9:00 a.m. - 6:23 p.m.YYZ-STL
10h 23m1 stop
C$ 671United Airlines
Find Deal
Tue, 26 Aug - Tue, 2 Sep

Air Canada flights from Missouri to Region of Ontario

Our best Air Canada deals on Missouri to Region of Ontario flight tickets
Air Canada
4 Sep
STL4:05 p.m.Lambert-St Louis
1h 55m
YYZ7:00 p.m.Toronto Pearson Intl
7 Sep
YYZ6:35 p.m.Toronto Pearson Intl
2h 03m
STL7:38 p.m.Lambert-St Louis
C$ 605
Find similar
Air Canada
4 Sep
STL1:30 p.m.Lambert-St Louis
8h 44m
1 stop
YYZ11:14 p.m.Toronto Pearson Intl
7 Sep
YYZ6:35 p.m.Toronto Pearson Intl
2h 03m
STL7:38 p.m.Lambert-St Louis
C$ 657
Find similar
Air Canada
4 Sep
STL4:05 p.m.Lambert-St Louis
1h 55m
YYZ7:00 p.m.Toronto Pearson Intl
6 Sep
YYZ2:15 p.m.Toronto Pearson Intl
2h 03m
STL3:18 p.m.Lambert-St Louis
C$ 695
Find similar

United Airlines flights from Missouri to Region of Ontario

Our best United Airlines deals on Missouri to Region of Ontario flight tickets
United Airlines
3 Sep
STL3:20 p.m.Lambert-St Louis
7h 38m
1 stop
YYZ11:58 p.m.Toronto Pearson Intl
9 Sep
YYZ9:00 a.m.Toronto Pearson Intl
7h 44m
1 stop
STL3:44 p.m.Lambert-St Louis
C$ 612
Find similar
United Airlines
26 Aug
STL6:35 a.m.Lambert-St Louis
8h 11m
1 stop
YYZ3:46 p.m.Toronto Pearson Intl
2 Sep
YYZ9:00 a.m.Toronto Pearson Intl
10h 23m
1 stop
STL6:23 p.m.Lambert-St Louis
C$ 671
Find similar
United Airlines
26 Aug
STL9:17 a.m.Lambert-St Louis
13h 41m
1 stop
YYZ11:58 p.m.Toronto Pearson Intl
3 Sep
YYZ10:00 a.m.Toronto Pearson Intl
9h 23m
1 stop
STL6:23 p.m.Lambert-St Louis
C$ 684
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Region of Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 31 July 2025.
Use the filters below to find and compare flights from Missouri to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Mon 15/9

2:55 p.m.-2:05 p.m.

2 stops22h 10m

Toronto Pearson Intl

Thu 18/9

7:15 a.m.-11:07 p.m.

1 stop16h 52m

C$ 425

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Sat 6/9

5:15 a.m.-11:41 p.m.

1 stop17h 26m

Toronto Pearson Intl

Sat 13/9

4:00 p.m.-11:07 p.m.

1 stop8h 07m

C$ 436

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 2/9

8:01 p.m.-12:32 p.m.

1 stop15h 31m

Toronto Pearson Intl

Wed 10/9

3:11 p.m.-9:53 p.m.

1 stop7h 42m

C$ 477

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Wed 10/9

6:10 a.m.-4:33 p.m.

1 stop9h 23m

Montreal Pierre Elliott Trudeau Intl

Mon 15/9

5:15 p.m.-9:26 a.m.

1 stop17h 11m

C$ 482

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 4/9

4:05 p.m.-7:00 p.m.

Nonstop1h 55m

Toronto Pearson Intl

Sun 7/9

6:35 p.m.-7:38 p.m.

Nonstop2h 03m

C$ 605

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 3/9

3:20 p.m.-11:58 p.m.

1 stop7h 38m

Toronto Pearson Intl

Tue 9/9

9:00 a.m.-3:44 p.m.

1 stop7h 44m

C$ 612

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 3/9

9:16 a.m.-8:43 p.m.

1 stop10h 27m

Toronto Pearson Intl

Thu 11/9

6:44 p.m.-7:56 a.m.

1 stop14h 12m

C$ 645

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 4/9

1:30 p.m.-11:14 p.m.

1 stop8h 44m

Toronto Pearson Intl

Sun 7/9

6:35 p.m.-7:38 p.m.

Nonstop2h 03m

C$ 657

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 4/9

6:00 a.m.-11:43 p.m.

1 stop16h 43m

Toronto Pearson Intl

Thu 11/9

6:44 p.m.-7:56 a.m.

1 stop14h 12m

C$ 666

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 26/8

6:35 a.m.-3:46 p.m.

1 stop8h 11m

Toronto Pearson Intl

Tue 2/9

9:00 a.m.-6:23 p.m.

1 stop10h 23m

C$ 671

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ontario from

How to get the cheapest flight ticket from Missouri to Region of Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Region of Ontario?

In general, September is the cheapest month to fly from Missouri to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 519. If you are unable to visit Region of Ontario during the month of September, then departing from Missouri during the month February is also very affordable. Most momondo users find prices during this month for around C$ 718.

What is the cheapest day to depart on your flight to Region of Ontario?

The cheapest day to depart from Missouri to Region of Ontario is on a Thursday. Travellers who choose to depart for Region of Ontario on a Thursday will often find tickets for as low as C$ 357. The most expensive day to fly to Region of Ontario is Sunday, with ticket prices averaging around C$ 928.

What is the cheapest time of day to depart on your flight to Region of Ontario?

Our most recent data shows that the best time of day to fly to Region of Ontario is at noon. Flights from Missouri to Region of Ontario during this time can be as low as C$ 593. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 782 on average. Flights to Region of Ontario from Missouri in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Missouri to Ontario flight route?

Fly from Kansas City to Toronto Pearson Intl for the best Missouri - Ontario flight prices

How far in advance should I book a flight to Region of Ontario?

You are more likely to see cheaper flights to Region of Ontario from Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around C$ 925 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from Missouri for as low as C$ 609 on momondo.

What cabin class options are available on Missouri to Ontario flights?

There are 1 cabin classes available to choose from on Missouri to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Missouri to Region of Ontario flights?

You could potentially save up to 67% on your flight if you consider stops on a Missouri to Region of Ontario flight.

Cheap Missouri to Region of Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to Region of Ontario

Best price found

C$ 174

Fastest flight time

1h 55m

Direct flights

Every day

Airports in Region of Ontario

4 airports
The best one-way flight to Region of Ontario from Missouri in the past 72 hours is C$ 174. The best round-trip flight deal from Missouri to Region of Ontario found on momondo in the last 72 hours is C$ 425.
The fastest flight from Missouri to Region of Ontario takes 1h 55m
Direct flights go from Missouri to Region of Ontario every day.
There are 4 airports near Region of Ontario: Ottawa (YOW), Montreal Pierre Elliott Trudeau Intl (YUL), London (YXU), Toronto Pearson Intl (YYZ)
Search flight deals

  • When did momondo last update prices for flights from Missouri to Ontario?

    Prices for flights from Missouri to Ontario are refreshed on a daily basis.

  • How many operators does momondo search for flights from Missouri to Ontario?

  • How old do you have to be to fly from Missouri to Ontario?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Missouri to Ontario.

  • What documentation or ID do you need to fly to Ontario?

    The travel and health documents required for your trip to Ontario can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Missouri to Region of Ontario?

Best airlines flying from Missouri to Region of Ontario

Compare and see reviews for airlines that fly from Missouri to Region of Ontario with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom C$ 302Free CancellationRating
7.1
9,851 reviews
Search Air Canada flights

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Ontario?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Missouri to Ontario . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Missouri to Ontario with flexible booking policies on momondo?

Flights from Missouri to Ontario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Missouri to Ontario?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Missouri to Ontario.

I’m not ready to book a flight from Missouri to Ontario right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Missouri to Ontario flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to Ontario

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