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

American Airlines, Delta, and United Airlines can get you from Missouri to Region of Ontario in just under 8h 02m. Your travel time can differ by up to 2h 05m. The distance from Missouri to Region of Ontario is about 1450 km. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

Can I find deals for flights from Missouri to Ontario that include hotel bookings?

Yes. In addition to deals on Missouri to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Missouri to Ontario?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Ontario.

Can I find deals for business class flights from Missouri to Ontario?

Yes. Cheapflights offers flight deals from Missouri to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 187+ Cheap Flights from Missouri to Ontario

Cheap flight deals from Missouri to Ontario

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Missouri to Ontario
Explore the most affordable flight options available from Missouri to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Wed 25/115:38 p.m. -

1 stop20h 42m

Mon 7/127:35 a.m. -

1 stop9h 24m

Deal found 28/10C$ 459

Wed 2/1212:05 p.m. -

2 stops24h 35m

Mon 7/126:30 a.m. -

1 stop18h 42m

Deal found 28/10C$ 515

Wed 2/1212:05 p.m. -

2 stops24h 35m

Thu 3/126:20 p.m. -

2 stops17h 57m

Deal found 30/10C$ 531

Wed 9/1212:02 p.m. -

2 stops28h 08m

Wed 16/1211:30 a.m. -

1 stop30h 20m

Deal found 25/10C$ 539

Mon 16/117:26 a.m. -

1 stop9h 15m

Wed 18/113:15 p.m. -

1 stop8h 00m

Deal found 26/10C$ 543

Tue 15/126:20 p.m. -

1 stop18h 20m

Thu 31/126:30 a.m. -

2 stops29h 23m

Deal found 28/10C$ 553

Mon 9/119:46 a.m. -

1 stop30h 24m

Thu 12/117:35 a.m. -

1 stop26h 11m

Deal found 26/10C$ 584

Fri 4/1212:02 p.m. -

2 stops24h 38m

Sun 6/129:20 a.m. -

2 stops26h 57m

Deal found 29/10C$ 595

Thu 19/112:10 p.m. -

2 stops27h 00m

Mon 23/116:30 a.m. -

1 stop18h 29m

Deal found 29/10C$ 596

Sat 5/125:30 a.m. -

1 stop10h 01m

Wed 9/1212:30 p.m. -

1 stop10h 43m

Deal found 26/10C$ 598

Tue 17/116:00 a.m. -

1 stop9h 34m

Wed 18/1112:44 p.m. -

1 stop10h 21m

Deal found 27/10C$ 599

Fri 11/128:32 p.m. -

2 stops16h 08m

Sun 10/19:20 a.m. -

1 stop25h 56m

Deal found 28/10C$ 605

Best flights from Missouri to Ontario
Discover carefully curated flight deals from Missouri to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Thu 8/410:16 a.m. -

1 stop11h 36m

Mon 12/49:20 a.m. -

1 stop8h 53m

Deal found 30/10C$ 605

Mon 23/115:38 a.m. -

1 stop9h 55m

Wed 25/117:09 a.m. -

1 stop12h 36m

Deal found 27/10C$ 626

Sat 5/126:00 a.m. -

2 stops16h 52m

Wed 9/1210:00 a.m. -

1 stop11h 05m

Deal found 26/10C$ 880

Thu 26/116:13 a.m. -

2 stops10h 07m

Wed 9/126:00 a.m. -

1 stop10h 54m

Deal found 29/10C$ 926

Wed 9/126:20 p.m. -

1 stop18h 20m

Wed 16/1211:30 a.m. -

1 stop30h 20m

Deal found 25/10C$ 626

Mon 7/124:49 p.m. -

1 stop23h 21m

Mon 14/127:35 a.m. -

1 stop9h 24m

Deal found 25/10C$ 687

Thu 10/126:20 p.m. -

1 stop18h 20m

Thu 17/126:20 p.m. -

2 stops31h 21m

Deal found 26/10C$ 758

Wed 24/26:45 a.m. -

2 stops10h 06m

Sat 27/26:15 a.m. -

2 stops11h 35m

Deal found 28/10C$ 929

Mon 16/1111:33 a.m. -

1 stop25h 52m

Thu 19/1110:00 a.m. -

1 stop10h 55m

Deal found 25/10C$ 937

Thu 3/126:13 p.m. -

3 stops28h 32m

Sun 6/123:30 p.m. -

2 stops20h 47m

Deal found 29/10C$ 782

Fri 29/110:57 a.m. -

2 stops11h 20m

Sun 31/17:50 a.m. -

1 stop10h 21m

Deal found 28/10C$ 948

Wed 2/125:01 a.m. -

1 stop8h 02m

Sat 5/125:55 p.m. -

1 stop16h 45m

Deal found 26/10C$ 1,056

Tue 29/126:30 a.m. -

2 stops15h 29m

Wed 6/16:10 a.m. -

2 stops17h 26m

Deal found 29/10C$ 961

Tue 1/126:13 p.m. -

3 stops28h 07m

Fri 4/128:40 a.m. -

3 stops27h 17m

Deal found 30/10C$ 821

Mon 14/125:05 p.m. -

1 stop27h 51m

Fri 25/123:10 p.m. -

1 stop8h 49m

Deal found 26/10C$ 1,088

Sat 5/1212:15 p.m. -

1 stop8h 41m

Wed 9/1210:00 a.m. -

2 stops11h 49m

Deal found 29/10C$ 990

Mon 14/127:54 p.m. -

3 stops27h 15m

Mon 21/129:15 a.m. -

3 stops32h 27m

Deal found 30/10C$ 846

Wed 2/126:32 a.m. -

2 stops10h 28m

Mon 7/1210:00 a.m. -

2 stops11h 32m

Deal found 27/10C$ 1,001

Mon 16/115:00 p.m. -

2 stops19h 10m

Tue 17/113:10 p.m. -

1 stop20h 38m

Deal found 27/10C$ 1,138

Thu 10/122:27 p.m. -

3 stops33h 14m

Thu 17/1212:15 p.m. -

3 stops23h 38m

Deal found 26/10C$ 905

Tue 10/115:55 p.m. -

1 stop4h 02m

Sat 14/119:45 a.m. -

1 stop4h 43m

Deal found 25/10C$ 1,026

Thu 12/1112:14 p.m. -

3 stops26h 06m

Sun 15/118:30 p.m. -

1 stop17h 03m

Deal found 25/10C$ 912

Sun 15/112:21 p.m. -

1 stop7h 36m

Sun 22/116:00 a.m. -

2 stops11h 31m

Deal found 28/10C$ 1,113

Fri 20/118:29 p.m. -

3 stops25h 17m

Mon 23/119:55 a.m. -

2 stops27h 39m

Deal found 26/10C$ 1,031

Wed 2/128:30 a.m. -

1 stop25h 52m

Thu 3/122:10 p.m. -

Nonstop2h 16m

Deal found 30/10C$ 1,128

Find flight deals from Missouri to Ontario

Round-trip from	C$ 459
One-way from	C$ 187
Popular in	August
Cheapest in	January
Average price	C$ 802
Good round-trip deal	C$ 1,194 or less

25/11-7/12
2 total stops
30h 06m total
Missouri to Ontario

Search Deals

9/12-31/12
2 total stops
28h 08m total
Missouri to Ontario

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (C$ 135 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 23 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Price to beat on a round-trip flight from Missouri to Ontario.

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Wed 9/12

12:02 p.m.-5:10 p.m.

2 stops28h 08m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 187

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Fri 11/12

5:02 a.m.-2:42 p.m.

1 stop8h 40m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 235

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Fri 4/12

12:02 p.m.-1:40 p.m.

2 stops24h 38m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 270

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Thu 12/11

2:00 p.m.-6:10 p.m.

2 stops27h 10m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 289

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Sun 13/12

10:25 a.m.-10:57 p.m.

1 stop11h 32m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 296

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Wed 25/11

6:00 a.m.-5:40 p.m.

1 stop10h 40m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 306

Kansas CityToronto

MCI Kansas City - YYZ Toronto Pearson Intl

MCIYYZ

Kansas City

Thu 10/12

7:59 p.m.-1:35 p.m.

2 stops16h 36m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 317

St. LouisOttawa

STL Lambert-St Louis - YOW Ottawa

STLYOW

Lambert-St Louis

Fri 11/12

12:02 p.m.-2:32 p.m.

2 stops25h 30m

Ottawa

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 339

Kansas CityToronto

MCI Kansas City - YYZ Toronto Pearson Intl

MCIYYZ

Kansas City

Sat 5/12

8:32 p.m.-6:15 p.m.

3 stops20h 43m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 348

Kansas CityToronto

MCI Kansas City - YYZ Toronto Pearson Intl

MCIYYZ

Kansas City

Sat 12/12

1:10 p.m.-1:24 p.m.

1 stop23h 14m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 373

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/10

Showing 1-10 of 45 resultsSorted by cheapest first

...

Best time to book a flight from Missouri to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Missouri with our price prediction graph.

MCI-YYZ

STL-YYZ

STL-YOW

JLN-YYZ

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Missouri to Ontario

USMO-CAON

MCI-YYZ

STL-YYZ

STL-YOW

JLN-YYZ

What is the cheapest month to book a flight from Missouri to Region of Ontario?

Currently, March is the cheapest month in which you can book a flight from Missouri to Region of Ontario (average of C$ 673). Flying from Missouri to Region of Ontario in January is currently the most expensive (average of C$ 1,025). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MO to ON?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missouri to Region of Ontario as you normally would.

How much does it cost to fly round-trip from Missouri to Region of Ontario?

Airfare is typical for this route at the moment.

Missouri to Region of Ontario flights typically cost between C$ 464 and C$ 688 in December.
The cheapest round-trip price found within the last 5 days was C$ 515 on Multiple Airlines (2 Dec-7 Dec).

How far ahead should I book a flight from Missouri to Region of Ontario?

Booking 87 days in advance of your planned departure date is, on average, the best time to get cheap flights from Missouri to Region of Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Ontario

Read reviews from past customers who have flown United Airlines and Air Canada from Missouri to Ontario. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.3

Good

10,460 reviews

Check prices

Reviews

1 / 20

6.0

Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.

United Airlines

7.3

Good

10,460 reviews

United Airlines

7.3

Good

10,460 reviews

Check prices

Reviews

1 / 20

6.0

Good

Miz,Oct 2024

EWR - YYZ

Air Canada

7.1

Good

11,835 reviews

United Airlines

7.3

Good

10,460 reviews

Check prices

Reviews

1 / 20

6.0

Good

Miz,Oct 2024

EWR - YYZ

Related info for your journey

How long is the flight from Missouri to Region of Ontario?
American Airlines, Delta, and United Airlines can get you from Missouri to Region of Ontario in just under 8h 02m. Your travel time can differ by up to 2h 05m. The distance from Missouri to Region of Ontario is about 1450 km. This flight may include one or multiple stops.
Can I find deals for flights from Missouri to Ontario that include hotel bookings?
Yes. In addition to deals on Missouri to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Missouri to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Ontario.
Can I find deals for business class flights from Missouri to Ontario?
Yes. Cheapflights offers flight deals from Missouri to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Missouri to Region of Ontario?
Currently, March is the cheapest month in which you can book a flight from Missouri to Region of Ontario (average of C$ 673). Flying from Missouri to Region of Ontario in January is currently the most expensive (average of C$ 1,025). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

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Alternative routes for Missouri to Ontario

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O'Hare Intl to Calgary flights

Top 2 airlines flying from Missouri to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 331	AverageC$ 800	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	CheapestC$ 710	AverageC$ 1,189	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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How does Cheapflights help users find flights from Missouri to Ontario?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Missouri to Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Missouri to Ontario?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from Missouri.

Can Cheapflights find flights from Missouri to Ontario with no change fees?

Certainly. Search results for flights to Ontario from Missouri shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Missouri to Ontario become cheaper?

Yes! Start tracking prices for Missouri to Ontario flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from Missouri to Ontario from C$ 187

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Missouri to Ontario

Cheapest flights from Missouri to OntarioExplore the most affordable flight options available from Missouri to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Explore the most affordable flight options available from Missouri to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from Missouri to OntarioDiscover carefully curated flight deals from Missouri to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Discover carefully curated flight deals from Missouri to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Direct flights from Missouri to OntarioExplore direct flight options from Missouri to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 October 2026.

Explore direct flight options from Missouri to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 October 2026.

Last-minute flights from Missouri to OntarioDiscover last-minute flight deals from Missouri to Ontario. Data last updated 30 October 2026 and is based on user searches.

Discover last-minute flight deals from Missouri to Ontario. Data last updated 30 October 2026 and is based on user searches.

One-way flights from Missouri to OntarioSearch for one-way flight options from Missouri to Ontario. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Search for one-way flight options from Missouri to Ontario. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Find flight deals from Missouri to Ontario

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Missouri to Ontario that are best for you.

Best time to book a flight from Missouri to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Missouri with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Missouri to Region of Ontario?

What is the cheapest time of day to fly from MO to ON?

Find hourly flight availability from Missouri to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 October 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missouri to Region of Ontario as you normally would.

How much does it cost to fly round-trip from Missouri to Region of Ontario?

Airfare is typical for this route at the moment.

Missouri to Region of Ontario flights typically cost between C$ 464 and C$ 688 in December.The cheapest round-trip price found within the last 5 days was C$ 515 on Multiple Airlines (2 Dec-7 Dec).

How far ahead should I book a flight from Missouri to Region of Ontario?

Booking 87 days in advance of your planned departure date is, on average, the best time to get cheap flights from Missouri to Region of Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Ontario

Read reviews from past customers who have flown United Airlines and Air Canada from Missouri to Ontario. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

Can I find deals for flights from Missouri to Ontario that include hotel bookings?

How can I find direct flights from Missouri to Ontario?

Can I find deals for business class flights from Missouri to Ontario?

What is the cheapest month to book a flight from Missouri to Region of Ontario?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Missouri to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to Canada

Book a non-stop flight to one of these other cities located in Canada.

Search flights from Missouri to Ontario by cabin class

Find flights from Missouri to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Missouri and Ontario flights

Browse other Missouri and Ontario flight options. Last updated on 30 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Find a return flight route from Ontario

Find the right flight back to Missouri after your stay in Ontario

Missouri to Ontario flights

Consider these flights travelling from Missouri to Ontario.

Top 2 airlines flying from Missouri to Ontario

Fly with Cheapflights

How does Cheapflights help users find flights from Missouri to Ontario?

Why should you use Cheapflights to find cheap flight tickets from Missouri to Ontario?

Can Cheapflights find flights from Missouri to Ontario with no change fees?

Can Cheapflights notify me if prices for flights from Missouri to Ontario become cheaper?

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Cheapest flights from Missouri to Ontario
Explore the most affordable flight options available from Missouri to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from Missouri to Ontario
Discover carefully curated flight deals from Missouri to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Direct flights from Missouri to Ontario
Explore direct flight options from Missouri to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 October 2026.

Last-minute flights from Missouri to Ontario
Discover last-minute flight deals from Missouri to Ontario. Data last updated 30 October 2026 and is based on user searches.

One-way flights from Missouri to Ontario
Search for one-way flight options from Missouri to Ontario. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Missouri to Region of Ontario flights typically cost between C$ 464 and C$ 688 in December.
The cheapest round-trip price found within the last 5 days was C$ 515 on Multiple Airlines (2 Dec-7 Dec).