How long is the flight from Missouri to Region of Ontario?

Average flight duration from Missouri to Region of Ontario depends on which airport you fly into and out of. Flying from St. Louis to Toronto Pearson Intl Airport is 1h 54m on average, while flying from Kansas City to Toronto Pearson Intl Airport is 3h 54m on average. Toronto Pearson Intl Airport is the most popular airport in Region of Ontario.

How many flights depart from Missouri to Region of Ontario on average per week?

As of August 2026, 30 flights take off from Missouri and land in Region of Ontario each week. The most common flight departure day for this route is Mon, with 20% of weekly flights taking off on this day.

What is the cheapest airline that flies from Missouri to Ontario?

American Airlines, Delta, and United Airlines are the most popular carriers operating from Missouri to Ontario

How many flights depart from Missouri to Region of Ontario on average per day?

4 flights are operational daily from Missouri to Region of Ontario as of August 2026. The most popular departure time for this route is 8:00AM, with 50% of flights per day taking off at noon.

What airlines fly to Region of Ontario?

Air Canada, United Airlines and Delta are the top three most popular airlines that fly to Region of Ontario from Missouri according to our data. Air Canada is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 5 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

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?

As of August 2026, there are 5 operators available to choose from for flights from Missouri to Ontario.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Missouri to Ontario.

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

The required travel and health documents for your Ontario trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$132 Cheap Flights from Missouri to Ontario in 2026

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Find the cheapest flights from Missouri to Ontario

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:35 am - 12:25 am

STL

YYZ

12h 50m

2 stops

5:15 pm - 7:39 pm

YYZ

STL

27h 24m

1 stop

$344Multiple Airlines

Mon, Oct 26 - Wed, Oct 28

10:56 am - 11:55 pm

MCI

YYZ

11h 59m

1 stop

7:40 am - 8:26 am

YYZ

MCI

25h 46m

1 stop

$347Multiple Airlines

Fri, Oct 30 - Sun, Nov 1

7:27 am - 5:44 pm

STL

YYZ

9h 17m

1 stop

1:15 pm - 12:27 am

YYZ

STL

12h 12m

1 stop

$352American Airlines

Thu, Sep 17 - Mon, Sep 28

5:00 am - 2:33 pm

STL

YYZ

8h 33m

1 stop

7:29 am - 4:43 pm

YYZ

STL

10h 14m

1 stop

$352American Airlines

Sat, Aug 29 - Sat, Sep 5

6:00 am - 6:09 pm

MCI

YYZ

11h 09m

1 stop

6:00 am - 5:15 pm

YYZ

MCI

12h 15m

1 stop

$474Delta

Wed, Sep 16 - Fri, Sep 18

7:00 am - 6:09 pm

MCI

YYZ

10h 09m

1 stop

10:00 am - 9:39 pm

YYZ

MCI

12h 39m

1 stop

$474Delta

Sat, Sep 19 - Tue, Sep 22

6:00 am - 1:10 pm

MCI

YUL

6h 10m

1 stop

4:45 pm - 9:49 pm

YUL

MCI

6h 04m

1 stop

$506United Airlines

Wed, Jan 6 - Wed, Jan 6

8:55 am - 11:56 am

STL

YYZ

2h 01mnonstop

12:55 pm - 2:02 pm

YYZ

STL

2h 07mnonstop

$523Air Canada

Sat, Aug 22 - Sun, Aug 23

12:10 pm - 7:01 pm

STL

YYZ

5h 51m

1 stop

12:55 pm - 2:02 pm

YYZ

STL

2h 07mnonstop

$524Air Canada

Sat, Aug 22 - Sun, Aug 23

6:00 am - 1:10 pm

MCI

YUL

6h 10m

1 stop

3:00 pm - 8:30 pm

YUL

MCI

6h 30m

1 stop

$535United Airlines

Sat, Jan 2 - Sat, Jan 9

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American Airlines flights from Missouri to Region of Ontario

Our best American Airlines deals on Missouri to Region of Ontario flight tickets

American Airlines

Aug 24

STL6:00 amLambert-St Louis

7h 33m

1 stop

YYZ2:33 pmToronto Pearson Intl

Aug 31

YYZ1:15 pmToronto Pearson Intl

11h 59m

1 stop

STL12:14 amLambert-St Louis

$352

American Airlines

Sep 17

STL7:27 amLambert-St Louis

9h 17m

1 stop

YYZ5:44 pmToronto Pearson Intl

Sep 28

YYZ1:15 pmToronto Pearson Intl

12h 12m

1 stop

STL12:27 amLambert-St Louis

$365

American Airlines

Oct 30

STL7:29 amLambert-St Louis

9h 16m

1 stop

YYZ5:45 pmToronto Pearson Intl

Nov 2

YYZ7:09 amToronto Pearson Intl

10h 34m

1 stop

STL4:43 pmLambert-St Louis

$369

United Airlines flights from Missouri to Region of Ontario

Our best United Airlines deals on Missouri to Region of Ontario flight tickets

United Airlines

Jan 6

MCI6:00 amKansas City

6h 10m

1 stop

YUL1:10 pmMontreal Pierre Elliott Trudeau Intl

Jan 6

YUL4:45 pmMontreal Pierre Elliott Trudeau Intl

6h 04m

1 stop

MCI9:49 pmKansas City

$506

United Airlines

Jan 2

MCI6:00 amKansas City

6h 10m

1 stop

YUL1:10 pmMontreal Pierre Elliott Trudeau Intl

Jan 5

YUL3:00 pmMontreal Pierre Elliott Trudeau Intl

6h 30m

1 stop

MCI8:30 pmKansas City

$535

United Airlines

Jan 2

MCI6:00 amKansas City

6h 10m

1 stop

YUL1:10 pmMontreal Pierre Elliott Trudeau Intl

Jan 6

YUL7:00 amMontreal Pierre Elliott Trudeau Intl

10h 19m

2 stops

MCI4:19 pmKansas City

$545

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 10/26

10:35 am-12:25 am

2 stops12h 50m

Toronto Pearson Intl

Wed 10/28

5:15 pm-7:39 pm

1 stop27h 24m

$344

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Fri 10/30

10:56 am-11:55 pm

1 stop11h 59m

Toronto Pearson Intl

Sun 11/1

7:40 am-8:26 am

1 stop25h 46m

$347

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 9/17

7:27 am-5:44 pm

1 stop9h 17m

Toronto Pearson Intl

Mon 9/28

1:15 pm-12:27 am

1 stop12h 12m

$352

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sat 8/29

5:00 am-2:33 pm

1 stop8h 33m

Toronto Pearson Intl

Sat 9/5

7:29 am-4:43 pm

1 stop10h 14m

$352

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Wed 9/16

6:00 am-6:09 pm

1 stop11h 09m

Toronto Pearson Intl

Fri 9/18

6:00 am-5:15 pm

1 stop12h 15m

$474

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Sat 9/19

7:00 am-6:09 pm

1 stop10h 09m

Toronto Pearson Intl

Tue 9/22

10:00 am-9:39 pm

1 stop12h 39m

$474

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Wed 1/6

6:00 am-1:10 pm

1 stop6h 10m

Montreal Pierre Elliott Trudeau Intl

Wed 1/6

4:45 pm-9:49 pm

1 stop6h 04m

$506

Quickest round-trip

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sat 8/22

8:55 am-11:56 am

Nonstop2h 01m

Toronto Pearson Intl

Sun 8/23

12:55 pm-2:02 pm

Nonstop2h 07m

$523

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sat 8/22

12:10 pm-7:01 pm

1 stop5h 51m

Toronto Pearson Intl

Sun 8/23

12:55 pm-2:02 pm

Nonstop2h 07m

$524

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Sat 1/2

6:00 am-1:10 pm

1 stop6h 10m

Montreal Pierre Elliott Trudeau Intl

Sat 1/9

3:00 pm-8:30 pm

1 stop6h 30m

$535

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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

The month of December is, on average, the cheapest month to fly to Region of Ontario from Missouri, with most prices found around $492. If you aren’t able to travel during the month of December, then book flights to Region of Ontario from Missouri during March instead. Flights to Region of Ontario in March, while not as cheap as those in December, still average around $497.

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

According to our data, Friday is the cheapest day to fly to Region of Ontario from Missouri. The lowest ticket price found for a Friday departure recently was $793. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Missouri to Region of Ontario on a Saturday will generally be more expensive and average around $968. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

According to our data, the cheapest time of day to fly to Region of Ontario is in the morning. momondo users have found flights departing from Missouri to Region of Ontario in the morning for as low as $729. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights at noon are often more expensive with an average ticket price of $1,065.

What is the cheapest Missouri to Ontario flight route?

Fly from Lambert-St Louis to Toronto Pearson Intl for the best Missouri - Ontario flight prices

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

There are 4 cabin classes available to choose from on Missouri to Region of 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 55% 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	$275
Fastest flight time	1h 54m
Direct flights	Every day
Airports in Region of Ontario	125 airports

The best one-way flight to Region of Ontario from Missouri in the past 72 hours is $275. The best round-trip flight deal from Missouri to Region of Ontario found on momondo in the last 72 hours is $405.

The fastest flight from Missouri to Region of Ontario takes 1h 54m

Direct flights go from Missouri to Region of Ontario every day.

There are 125 airports in Region of Ontario. From Missouri there are direct flights to Montreal Pierre Elliott Trudeau Intl (YUL), Toronto Pearson Intl (YYZ).

Search flight deals

Frequently asked questions about flying from Missouri to Ontario

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?
As of August 2026, there are 5 operators available to choose from for flights from Missouri to Ontario.
How old do you have to be to fly from Missouri to Ontario?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Missouri to Ontario.
What documentation or ID do you need to fly to Ontario?
The required travel and health documents for your Ontario trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Missouri to Region of Ontario?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Missouri to Region of Ontario is Canadair (Bombardier) Regional Jet 900 (42.93% of total bookings). The next most popular plane models are Airbus A220-300 (29.35%), Embraer 175 (7.61%), and Boeing 737 MAX 8 (5.43%).

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 Canada	PriceFrom $139	Free Cancellation	Rating 7.1 11,419 reviews	Search Air Canada flights
United Airlines	PriceFrom $203	Free Cancellation	Rating 7.4 10,061 reviews	Search United Airlines flights
American Airlines	PriceFrom $270	Free Cancellation	Rating 7.1 11,846 reviews	Search American Airlines flights
Delta	PriceFrom $280	Free Cancellation	Rating 7.8 8,493 reviews	Search Delta flights
WestJet	PriceFrom $591	Free Cancellation	Rating 7.2 3,424 reviews	Search WestJet flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Missouri.

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?

Once you have performed a search for Missouri to Ontario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Missouri to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.

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Popular cities in Ontario

Flights to Torontofrom $168

Flights to Vancouverfrom $129

Flights to Montrealfrom $227

Flights to Calgaryfrom $157

Flights to Ottawafrom $234

Flights to Halifaxfrom $278

Flights to Winnipegfrom $258

Flights to Québec Cityfrom $323

Flights to Kelownafrom $242

Flights to Saskatoonfrom $291

Flights to St. John'sfrom $355

Flights to Reginafrom $321

Cheap flights from Missouri to Ontario from $132

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 12/7. 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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American Airlines flights from Missouri to Region of Ontario

Our best American Airlines deals on Missouri to Region of Ontario flight tickets

United Airlines flights from Missouri to Region of Ontario

Our best United Airlines deals on Missouri to Region of Ontario flight tickets

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

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

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

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

What is the cheapest Missouri to Ontario flight route?

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

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

What is the cheapest airline that flies from Missouri to Ontario?

What airlines fly to Region of Ontario?

How many flights depart from Missouri to Region of Ontario on average per day?

How many flights depart from Missouri to Region of Ontario on average per week?

How long is the flight from Missouri to Region of Ontario?

Cheap Missouri to Region of Ontario flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Region of Ontario

Frequently asked questions about flying from Missouri to 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

Why use momondo?

An easier way to manage your Region of Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Ontario

Popular cities in Ontario

Popular flights according to clicks in the last 7 days on momondo

Missouri flight routes

According to popular flight searches on momondo this year

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