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

United Airlines, American Airlines, and Delta can get you from Missouri to Region of Ontario in just under 5h 09m. Your travel time can differ by up to 17h 53m. The distance from Missouri to Region of Ontario is about 1698 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$ 116+ Flights from Missouri to Ontario

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

Airfare is below average for this route at the moment. Missouri to Region of Ontario flights typically cost between C$ 984 and C$ 1,111 in January. The cheapest round-trip price found within the last 3 days was C$ 351 on Multiple Airlines (29 Jan-5 Feb).

Cheap flight deals from Missouri to Ontario

Enter your travel dates to find the best prices.

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 16 December 2025.

Sat 20/127:43 p.m.STL - YYZ

2 stops34h 04mMultiple Airlines

Sat 31/17:10 a.m.YYZ - STL

1 stop17h 23mMultiple Airlines

Deal found 14/12C$ 840

Thu 18/1211:51 a.m.STL - YYZ

1 stop10h 29mMultiple Airlines

Sun 21/127:10 a.m.YYZ - STL

2 stops27h 52mMultiple Airlines

Deal found 14/12C$ 849

Thu 25/1211:51 a.m.STL - YYZ

2 stops19h 12mMultiple Airlines

Thu 1/17:10 a.m.YYZ - STL

1 stop16h 23mMultiple Airlines

Deal found 15/12C$ 866

Thu 18/1211:51 a.m.STL - YYZ

1 stop10h 29mMultiple Airlines

Sat 20/127:10 a.m.YYZ - STL

2 stops28h 46mMultiple Airlines

Deal found 15/12C$ 869

Sat 27/126:15 p.m.MCI - YYZ

1 stop16h 28mMultiple Airlines

Sat 3/17:10 a.m.YYZ - MCI

1 stop16h 49mMultiple Airlines

Deal found 15/12C$ 882

Thu 18/1211:51 a.m.STL - YYZ

1 stop10h 29mMultiple Airlines

Mon 22/127:10 a.m.YYZ - STL

1 stop16h 23mMultiple Airlines

Deal found 14/12C$ 896

Tue 30/126:05 a.m.STL - YYZ

1 stop8h 54mDelta

Sat 3/19:54 a.m.YYZ - STL

1 stop8h 36mDelta

Deal found 15/12C$ 902

Fri 26/126:15 p.m.MCI - YYZ

1 stop28h 05mMultiple Airlines

Tue 30/127:10 a.m.YYZ - MCI

1 stop16h 49mMultiple Airlines

Deal found 15/12C$ 903

Thu 25/121:05 p.m.STL - YYZ

1 stop4h 52mUnited Airlines

Tue 30/129:00 a.m.YYZ - STL

1 stop6h 26mUnited Airlines

Deal found 15/12C$ 909

Thu 25/1211:53 a.m.MCI - YYZ

2 stops17h 27mMultiple Airlines

Tue 30/127:10 a.m.YYZ - MCI

1 stop16h 49mMultiple Airlines

Deal found 15/12C$ 953

Thu 25/123:47 p.m.MCI - YUL

1 stop7h 43mMultiple Airlines

Thu 1/15:25 p.m.YUL - MCI

2 stops30h 34mMultiple Airlines

Deal found 15/12C$ 958

Tue 30/125:59 p.m.STL - YUL

1 stop4h 20mDelta

Thu 8/19:34 a.m.YUL - STL

2 stops12h 09mDelta

Deal found 15/12C$ 973

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 16 December 2025.

Sun 11/112:37 p.m.STL - YYZ

1 stop16h 43mMultiple Airlines

Fri 16/17:10 a.m.YYZ - STL

1 stop16h 24mMultiple Airlines

Deal found 14/12C$ 337

Sat 14/210:04 a.m.STL - YYZ

1 stop10h 25mAmerican Airlines

Sat 21/26:00 a.m.YYZ - STL

1 stop9h 45mAmerican Airlines

Deal found 13/12C$ 483

Tue 6/15:45 p.m.MCI - YOW

1 stop5h 09mUnited Airlines

Thu 8/19:45 a.m.YOW - MCI

1 stop6h 25mUnited Airlines

Deal found 14/12C$ 500

Tue 13/12:50 p.m.STL - YYZ

1 stop23h 45mAlaska Airlines

Tue 20/14:45 p.m.YYZ - STL

1 stop22h 09mAlaska Airlines

Deal found 15/12C$ 617

Wed 14/18:32 p.m.STL - YYZ

2 stops41h 08mMultiple Airlines

Wed 21/17:15 a.m.YYZ - STL

1 stop17h 18mMultiple Airlines

Deal found 15/12C$ 357

Sat 31/11:20 p.m.STL - YUL

1 stop23h 02mDelta

Mon 2/27:30 p.m.YUL - STL

1 stop18h 03mDelta

Deal found 15/12C$ 735

Wed 28/18:22 p.m.STL - YYZ

2 stops25h 58mMultiple Airlines

Wed 4/25:15 p.m.YYZ - STL

1 stop7h 18mMultiple Airlines

Deal found 14/12C$ 379

Sun 11/111:26 a.m.MCI - YYZ

2 stops31h 45mMultiple Airlines

Sun 18/17:10 a.m.YYZ - MCI

1 stop9h 59mMultiple Airlines

Deal found 14/12C$ 406

Sun 11/18:00 a.m.MCI - YOW

1 stop12h 18mUnited Airlines

Thu 15/15:11 p.m.YOW - MCI

1 stop5h 48mUnited Airlines

Deal found 13/12C$ 500

Thu 29/110:00 a.m.MCI - YOW

1 stop6h 12mUnited Airlines

Thu 5/29:45 a.m.YOW - MCI

1 stop6h 25mUnited Airlines

Deal found 15/12C$ 500

Tue 13/15:11 p.m.STL - YYZ

1 stop20h 05mMultiple Airlines

Tue 20/17:15 a.m.YYZ - STL

1 stop17h 18mMultiple Airlines

Deal found 14/12C$ 419

Tue 24/26:00 a.m.MCI - YUL

1 stop8h 10mAmerican Airlines

Wed 25/23:55 p.m.YUL - MCI

1 stop21h 03mAmerican Airlines

Deal found 14/12C$ 574

Fri 16/110:09 p.m.STL - YYZ

2 stops38h 31mMultiple Airlines

Thu 22/15:15 p.m.YYZ - STL

1 stop18h 08mMultiple Airlines

Deal found 14/12C$ 424

Sun 18/14:05 p.m.STL - YXU

1 stop4h 15mAir Canada

Thu 22/19:50 a.m.YXU - STL

1 stop6h 39mAir Canada

Deal found 13/12C$ 1,251

Mon 26/12:45 p.m.MCI - YYZ

1 stop23h 50mAlaska Airlines

Wed 28/14:45 p.m.YYZ - MCI

1 stop22h 05mAlaska Airlines

Deal found 15/12C$ 632

Thu 26/26:00 a.m.STL - YUL

1 stop8h 05mAmerican Airlines

Mon 2/33:55 p.m.YUL - STL

1 stop18h 34mAmerican Airlines

Deal found 14/12C$ 591

Mon 12/17:00 a.m.MCI - YYZ

1 stop22h 20mMultiple Airlines

Mon 19/15:15 p.m.YYZ - MCI

1 stop23h 54mMultiple Airlines

Deal found 13/12C$ 447

Wed 28/12:45 p.m.MCI - YYZ

1 stop23h 50mAlaska Airlines

Wed 4/24:45 p.m.YYZ - MCI

1 stop22h 05mAlaska Airlines

Deal found 14/12C$ 658

Mon 26/16:00 a.m.MCI - YYZ

1 stop11h 20mAmerican Airlines

Mon 2/27:04 p.m.YYZ - MCI

1 stop16h 03mAmerican Airlines

Deal found 14/12C$ 610

Tue 10/32:49 p.m.MCI - YYZ

1 stop23h 46mAlaska Airlines

Mon 16/34:45 p.m.YYZ - MCI

2 stops24h 37mAlaska Airlines

Deal found 14/12C$ 659

Sat 10/17:00 a.m.MCI - YYZ

1 stop22h 20mMultiple Airlines

Wed 14/13:40 p.m.YYZ - MCI

1 stop19h 51mMultiple Airlines

Deal found 15/12C$ 467

Mon 26/17:45 a.m.SGF - YYZ

1 stop14h 35mUnited Airlines

Thu 29/112:05 p.m.YYZ - SGF

1 stop10h 53mUnited Airlines

Deal found 13/12C$ 812

Fri 16/15:11 p.m.STL - YYZ

1 stop20h 09mMultiple Airlines

Sun 18/17:15 a.m.YYZ - STL

1 stop16h 19mMultiple Airlines

Deal found 15/12C$ 512

Thu 29/16:44 p.m.STL - YUL

1 stop19h 24mAmerican Airlines

Thu 5/23:50 p.m.YUL - STL

1 stop19h 30mAmerican Airlines

Deal found 15/12C$ 790

Tue 24/27:00 a.m.MCI - YYZ

1 stop11h 55mMultiple Airlines

Wed 25/23:40 p.m.YYZ - MCI

1 stop19h 50mMultiple Airlines

Deal found 14/12C$ 531

Fri 23/16:44 p.m.STL - YUL

1 stop19h 24mAmerican Airlines

Tue 27/13:50 p.m.YUL - STL

1 stop19h 30mAmerican Airlines

Deal found 14/12C$ 793

Sat 17/18:52 a.m.JLN - YUL

1 stop8h 48mUnited Airlines

Wed 21/16:25 p.m.YUL - JLN

1 stop24h 09mUnited Airlines

Deal found 13/12C$ 943

Mon 13/411:45 a.m.SGF - YYZ

2 stops10h 37mDelta

Fri 17/410:20 a.m.YYZ - SGF

2 stops13h 15mDelta

Deal found 15/12C$ 1,271

Wed 28/17:00 a.m.MCI - YUL

2 stops16h 35mMultiple Airlines

Wed 4/25:25 p.m.YUL - MCI

2 stops18h 06mMultiple Airlines

Deal found 14/12C$ 563

Wed 14/16:00 a.m.STL - YUL

1 stop8h 08mAmerican Airlines

Wed 21/17:30 a.m.YUL - STL

2 stops11h 44mAmerican Airlines

Deal found 15/12C$ 826

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 16 December 2025.

Mon 26/14:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Thu 29/12:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Deal found 15/12C$ 646

Wed 25/34:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Wed 1/42:10 p.m.YYZ - STL

Nonstop2h 14mAir Canada

Deal found 16/12C$ 703

Wed 28/14:05 p.m.STL - YYZ

Nonstop2h 01mUnited Airlines

Wed 4/22:00 p.m.YYZ - STL

Nonstop2h 15mUnited Airlines

Deal found 14/12C$ 749

Thu 23/44:05 p.m.STL - YYZ

Nonstop1h 57mAir Canada

Sun 26/42:10 p.m.YYZ - STL

Nonstop2h 14mAir Canada

Deal found 15/12C$ 761

Mon 12/14:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Thu 15/12:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Deal found 15/12C$ 801

Thu 15/14:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Mon 19/12:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Deal found 15/12C$ 825

Sat 14/34:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Sat 21/32:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Deal found 14/12C$ 1,188

Wed 3/61:00 p.m.STL - YUL

Nonstop2h 35mAir Canada

Sun 14/66:10 p.m.YUL - STL

Nonstop2h 55mAir Canada

Deal found 15/12C$ 1,253

Wed 25/34:05 p.m.STL - YYZ

Nonstop2h 01mUnited Airlines

Wed 1/42:10 p.m.YYZ - STL

Nonstop2h 14mUnited Airlines

Deal found 16/12C$ 1,356

Fri 22/51:00 p.m.STL - YUL

Nonstop2h 35mAir Canada

Mon 25/56:10 p.m.YUL - STL

Nonstop2h 55mAir Canada

Deal found 15/12C$ 1,525

Fri 1/52:20 p.m.STL - YYZ

Nonstop1h 58mAir Canada

Wed 20/511:00 a.m.YYZ - STL

Nonstop2h 06mAir Canada

Deal found 15/12C$ 1,536

Sat 3/14:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Thu 8/12:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Deal found 15/12C$ 1,708

Last-minute flights from Missouri to Ontario
Discover last-minute flight deals from Missouri to Ontario. Data last updated 16 December 2025 and is based on user searches.

Sat 3/16:00 a.m.MCI - YOW

2 stops16h 54mUnited Airlines

Tue 6/15:11 p.m.YOW - MCI

1 stop5h 48mUnited Airlines

Deal found 14/12C$ 608

Tue 6/13:24 p.m.MCI - YOW

2 stops7h 30mUnited Airlines

Thu 8/19:45 a.m.YOW - MCI

1 stop6h 25mUnited Airlines

Deal found 14/12C$ 507

Sat 10/17:00 a.m.MCI - YYZ

1 stop22h 20mMultiple Airlines

Wed 14/13:40 p.m.YYZ - MCI

1 stop19h 51mMultiple Airlines

Deal found 15/12C$ 467

Sun 11/111:26 a.m.MCI - YYZ

2 stops31h 45mMultiple Airlines

Sun 18/17:10 a.m.YYZ - MCI

1 stop9h 59mMultiple Airlines

Deal found 14/12C$ 406

Sun 11/18:00 a.m.MCI - YOW

1 stop12h 18mUnited Airlines

Thu 15/15:11 p.m.YOW - MCI

1 stop5h 48mUnited Airlines

Deal found 13/12C$ 500

Sun 11/112:37 p.m.STL - YUL

2 stops17h 28mMultiple Airlines

Sun 18/14:35 p.m.YUL - STL

1 stop30h 59mMultiple Airlines

Deal found 14/12C$ 582

Mon 12/111:26 a.m.MCI - YYZ

1 stop9h 46mMultiple Airlines

Mon 19/17:00 a.m.YYZ - MCI

2 stops34h 09mMultiple Airlines

Deal found 15/12C$ 379

Thu 15/111:29 a.m.MCI - YOW

1 stop4h 43mAir Canada

Sun 18/17:15 a.m.YOW - MCI

2 stops17h 15mAir Canada

Deal found 14/12C$ 653

Thu 15/18:00 a.m.MCI - YOW

1 stop8h 12mUnited Airlines

Sun 18/12:15 p.m.YOW - MCI

1 stop6h 41mUnited Airlines

Deal found 14/12C$ 670

Wed 28/17:00 a.m.MCI - YUL

2 stops16h 43mMultiple Airlines

Wed 4/28:00 a.m.YUL - MCI

1 stop27h 31mMultiple Airlines

Deal found 14/12C$ 460

Thu 29/111:26 a.m.MCI - YYZ

1 stop10h 54mMultiple Airlines

Thu 5/28:30 p.m.YYZ - MCI

1 stop15h 01mMultiple Airlines

Deal found 15/12C$ 351

Sat 31/112:12 p.m.STL - YUL

1 stop11h 18mMultiple Airlines

Mon 2/26:45 a.m.YUL - STL

2 stops17h 48mMultiple Airlines

Deal found 15/12C$ 592

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 16 December 2025.

Sun 18/15:11 p.m.STL - YYZ

1 stop20h 09mMultiple Airlines

Deal found 14/12C$ 116

Tue 13/15:11 p.m.STL - YYZ

1 stop20h 05mMultiple Airlines

Deal found 14/12C$ 140

Mon 19/11:35 p.m.STL - YYZ

1 stop15h 45mMultiple Airlines

Deal found 14/12C$ 156

Wed 14/18:32 p.m.STL - YYZ

2 stops41h 08mMultiple Airlines

Deal found 15/12C$ 158

Thu 29/110:01 p.m.STL - YYZ

1 stop31h 19mMultiple Airlines

Deal found 14/12C$ 168

Tue 13/17:00 a.m.MCI - YYZ

2 stops35h 36mMultiple Airlines

Deal found 14/12C$ 182

Fri 16/15:11 p.m.STL - YYZ

1 stop30h 00mMultiple Airlines

Deal found 14/12C$ 194

Thu 8/13:43 p.m.STL - YYZ

2 stops21h 22mMultiple Airlines

Deal found 15/12C$ 195

Wed 7/13:47 p.m.MCI - YYZ

1 stop7h 24mMultiple Airlines

Deal found 16/12C$ 198

Sat 17/18:32 p.m.STL - YYZ

2 stops25h 47mMultiple Airlines

Deal found 14/12C$ 204

Wed 28/15:45 a.m.MCI - YOW

2 stops12h 07mUnited Airlines

Deal found 14/12C$ 220

Tue 23/126:15 p.m.MCI - YYZ

1 stop19h 25mMultiple Airlines

Deal found 13/12C$ 227

Find flight deals from Missouri to Ontario

Round-trip from	C$ 337
One-way from	C$ 116
Popular in	January
Cheapest in	February
Average price	C$ 1,034

11/1-16/1
2 total stops
33h 07m total
Missouri to Ontario

Search Deals

18/1
1 total stop
20h 09m total
Missouri to Ontario

Search Deals

High demand for flights, 2% potential price rise

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 December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sun 11/1

12:37 p.m.-6:20 a.m.

1 stop16h 43m

Toronto Pearson Intl

Fri 16/1

7:10 a.m.-10:34 p.m.

1 stop16h 24m

C$ 337

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 14/1

8:32 p.m.-2:40 p.m.

2 stops41h 08m

Toronto Pearson Intl

Wed 21/1

7:15 a.m.-11:33 p.m.

1 stop17h 18m

C$ 357

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 28/1

8:22 p.m.-11:20 p.m.

2 stops25h 58m

Toronto Pearson Intl

Wed 4/2

5:15 p.m.-11:33 p.m.

1 stop7h 18m

C$ 379

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Sun 11/1

11:26 a.m.-8:11 p.m.

2 stops31h 45m

Toronto Pearson Intl

Sun 18/1

7:10 a.m.-4:09 p.m.

1 stop9h 59m

C$ 406

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 13/1

5:11 p.m.-2:16 p.m.

1 stop20h 05m

Toronto Pearson Intl

Tue 20/1

7:15 a.m.-11:33 p.m.

1 stop17h 18m

C$ 419

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 16/1

10:09 p.m.-1:40 p.m.

2 stops38h 31m

Toronto Pearson Intl

Thu 22/1

5:15 p.m.-10:23 a.m.

1 stop18h 08m

C$ 424

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Mon 12/1

7:00 a.m.-6:20 a.m.

1 stop22h 20m

Toronto Pearson Intl

Mon 19/1

5:15 p.m.-4:09 p.m.

1 stop23h 54m

C$ 447

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Sat 10/1

7:00 a.m.-6:20 a.m.

1 stop22h 20m

Toronto Pearson Intl

Wed 14/1

3:40 p.m.-10:31 a.m.

1 stop19h 51m

C$ 467

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sat 14/2

10:04 a.m.-9:29 p.m.

1 stop10h 25m

Toronto Pearson Intl

Sat 21/2

6:00 a.m.-2:45 p.m.

1 stop9h 45m

C$ 483

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Tue 6/1

5:45 p.m.-11:54 p.m.

1 stop5h 09m

Ottawa

Thu 8/1

9:45 a.m.-3:10 p.m.

1 stop6h 25m

C$ 500

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/12

Showing 1-10 of 60 results

...

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.

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

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

Currently, June is the cheapest month in which you can book a flight from Missouri to Region of Ontario (average of C$ 246). Flying from Missouri to Region of Ontario in October is currently the most expensive (average of C$ 710). 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?

Reviews of airlines servicing Ontario

Read reviews from past customers who have flown 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.

Air Canada

7.1

Good

10,527 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Shawna,Sep 2025

DCA - YYZ

Business class cabin was *freezing*. Landing was so hard it injured my back - no apology or explanation given

Air Canada

7.1

Good

10,527 reviews

Air Canada

7.1

Good

10,527 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Shawna,Sep 2025

DCA - YYZ

Business class cabin was *freezing*. Landing was so hard it injured my back - no apology or explanation given

Related info for your journey

How long is the flight from Missouri to Region of Ontario?
United Airlines, American Airlines, and Delta can get you from Missouri to Region of Ontario in just under 5h 09m. Your travel time can differ by up to 17h 53m. The distance from Missouri to Region of Ontario is about 1698 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, June is the cheapest month in which you can book a flight from Missouri to Region of Ontario (average of C$ 246). Flying from Missouri to Region of Ontario in October is currently the most expensive (average of C$ 710). 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 for Missouri to Ontario

Newark to Pearson Intl flights

Newark to Toronto Island flights

John F Kennedy Intl to Pearson Intl flights

Los Angeles to Vancouver Intl flights

Newark to Pierre Elliott Trudeau Intl flights

LaGuardia to Pierre Elliott Trudeau Intl flights

LaGuardia to Pearson Intl flights

John F Kennedy Intl to Vancouver Intl flights

Newark to Vancouver Intl flights

San Francisco to Vancouver Intl flights

John F Kennedy Intl to Pierre Elliott Trudeau Intl flights

Los Angeles to Pearson Intl flights

Reagan-National to Pearson Intl flights

Dulles Intl to Pearson Intl flights

Boston to Pearson Intl flights

O'Hare Intl to Vancouver Intl flights

Newark to Calgary flights

San Diego to Vancouver Intl flights

Dallas/Fort Worth to Pearson Intl flights

Dulles Intl to Pierre Elliott Trudeau Intl flights

O'Hare Intl to Pearson Intl flights

Dallas/Fort Worth to Vancouver Intl flights

Boston to Pierre Elliott Trudeau Intl flights

San Francisco to Pearson Intl flights

John F Kennedy Intl to Calgary flights

LaGuardia to Vancouver Intl flights

Los Angeles to Calgary flights

Denver to Vancouver Intl flights

Hobby to Vancouver Intl flights

Reagan-National to Pierre Elliott Trudeau Intl flights

Fort Lauderdale to Pierre Elliott Trudeau Intl flights

O'Hare Intl to Calgary flights

George Bush Intcntl to Vancouver Intl flights

Boston to Toronto Island flights

O'Hare Intl to Pierre Elliott Trudeau Intl flights

Boston to Vancouver Intl flights

Los Angeles to Pierre Elliott Trudeau Intl flights

Newark to Québec City flights

Atlanta to Pearson Intl flights

Atlanta to Vancouver Intl flights

Dulles Intl to Toronto Island flights

Dulles Intl to Vancouver Intl flights

Fort Lauderdale to Pearson Intl flights

Seattle to Vancouver Intl flights

Hobby to Calgary flights

Ontario to Vancouver Intl flights

San Francisco to Calgary flights

Seattle to Pearson Intl flights

Sacramento to Vancouver Intl flights

Minneapolis to Pearson Intl flights

Complete your trip

Region of Ontario car rentals

Toronto Pearson Intl Airport car rentals

Ottawa Airport car rentals

Toronto Island Airport car rentals

Hamilton Airport car rentals

London Airport car rentals

Thunder Bay Airport car rentals

Toronto Region of Waterloo Intl Airport car rentals

Sault Ste Marie Airport car rentals

Timmins Airport car rentals

Kingston Airport car rentals

Sarnia Airport car rentals

Direct flights to Canada

Find a return flight route from Ontario

Pearson Intl to St. Louis flights

Pierre Elliott Trudeau Intl to Kansas City flights

Pierre Elliott Trudeau Intl to St. Louis flights

Pearson Intl to Kansas City flights

Ottawa to St. Louis flights

Pearson Intl to Columbia flights

Ottawa to Kansas City flights

Pearson Intl to Springfield flights

Pierre Elliott Trudeau Intl to Cape Girardeau flights

Pearson Intl to Quincy flights

Top airline flying from Missouri to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 300	AverageC$ 642	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights

Fly with Cheapflights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Missouri to Ontario from C$ 116

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/1. 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 16 December 2025.

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 16 December 2025.

Find flight deals from Missouri to Ontario

Keep the following information in mind while searching for Missouri to Ontario flight deals. Data was last updated 16 December 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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

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

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 16 December 2025.

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

Reviews of airlines servicing Ontario

Read reviews from past customers who have flown 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

Find useful and relevant information for your journey from Missouri to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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.

Top airline flying from Missouri to Ontario

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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?

100% Free

Book with Flexibility

Travel Smart

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 16 December 2025.