What are the cheapest airlines to fly from Region of Ontario to Missouri one-way?

The cheapest airlines for a one-way flight from Region of Ontario to Missouri are Air Canada (C$ 249), United Airlines (C$ 250), and American Airlines (C$ 376).

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

To save on the cost of your flight from Region of Ontario to Missouri, book at least 57 days before your planned departure. Booking around this time can save you about 158% on the cost of this flight compared to booking a flight leaving this week. We have found prices from C$ 605 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as C$ 1,461.

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

Our data shows that January tends to be the cheapest month to fly to Missouri from Region of Ontario. Users have commonly found prices around C$ 631 for the month, but tickets can be as low as C$ 470. Due to multiple factors, prepare for potentially higher prices in August.

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

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

How can I find direct flights from Ontario to Missouri?

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

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

Yes. Cheapflights offers flight deals from Ontario to Missouri 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$ 213+ Flights from Ontario to Missouri

Find flights from Ontario to Missouri within your budget

Fly from

Fly to

Route

Depart

Return

Price

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 4/12

7:30 a.m.-11:24 p.m.

1 stop16h 54m

C$ 213

MontrealKansas City

YUL - MCI

YULMCI

Montreal Pierre Elliott Trudeau Intl

Sat 7/12

8:05 a.m.-11:40 p.m.

1 stop16h 35m

C$ 249

MontrealKansas City

YUL - MCI

YULMCI

Montreal Pierre Elliott Trudeau Intl

Thu 12/12

9:15 a.m.-3:03 p.m.

1 stop6h 48m

C$ 250

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 2/12

7:12 p.m.-11:58 p.m.

1 stop5h 46m

C$ 376

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Tue 3/12

12:50 p.m.-8:49 p.m.

1 stop8h 59m

C$ 406

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Mon 2/12

6:30 p.m.-12:04 p.m.

2 stops18h 34m

C$ 456

TorontoKansas City

YYZ - MCI

YYZMCI

Toronto Pearson Intl

Tue 19/11

5:35 p.m.-11:30 a.m.

1 stop18h 55m

C$ 230

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Mon 18/11

3:55 p.m.-4:34 p.m.

1 stop25h 39m

C$ 246

TorontoSpringfield

YYZ - SGF

YYZSGF

Toronto Pearson Intl

Sat 14/12

7:55 p.m.-10:02 a.m.

1 stop15h 07m

C$ 274

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 26/11

1:50 p.m.-3:06 p.m.

Nonstop2h 16m

C$ 333

Flights are sorted by cheapest first

Deals found on 30/10

Showing 1-10 of 52 results

...

Find flight deals from Ontario to Missouri

Cheapest flights from Ontario to Missouri
Explore the most affordable flight options available from Ontario to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2024.

Tue 26/116:00 a.m.YUL - MCI

1 stop5h 29mAir Canada

Tue 3/126:00 a.m.MCI - YUL

1 stop10h 08mAir Canada

Deal found 29/10C$ 412

Wed 13/118:05 a.m.YUL - MCI

1 stop13h 25mUnited Airlines

Wed 20/118:05 a.m.MCI - YUL

1 stop8h 45mUnited Airlines

Deal found 30/10C$ 420

Mon 25/1112:30 p.m.YUL - MCI

1 stop11h 02mAmerican Airlines

Fri 29/115:07 a.m.MCI - YUL

1 stop16h 37mAmerican Airlines

Deal found 29/10C$ 447

Fri 6/1212:50 p.m.YUL - MCI

1 stop9h 32mDelta

Mon 9/125:45 a.m.MCI - YUL

1 stop10h 14mDelta

Deal found 29/10C$ 459

Tue 26/115:35 p.m.YUL - MCI

1 stop11h 47mMultiple Airlines

Sat 30/115:27 a.m.MCI - YUL

1 stop10h 08mMultiple Airlines

Deal found 29/10C$ 472

Sat 7/127:10 a.m.YUL - MCI

1 stop27h 45mWestJet

Mon 9/124:55 p.m.MCI - YUL

1 stop23h 04mWestJet

Deal found 29/10C$ 474

Wed 4/127:30 a.m.YYZ - MCI

1 stop9h 17mMultiple Airlines

Fri 31/17:27 p.m.MCI - YYZ

1 stop10h 19mMultiple Airlines

Deal found 30/10C$ 490

Tue 3/126:30 a.m.YUL - STL

1 stop10h 56mMultiple Airlines

Thu 5/124:26 p.m.STL - YUL

1 stop24h 09mMultiple Airlines

Deal found 30/10C$ 543

Tue 10/127:40 a.m.YYZ - STL

1 stop8h 41mMultiple Airlines

Sun 15/124:26 p.m.STL - YYZ

2 stops18h 19mMultiple Airlines

Deal found 30/10C$ 552

Tue 26/119:00 a.m.YYZ - MCI

1 stop6h 21mAir Canada

Tue 3/122:00 p.m.MCI - YYZ

1 stop7h 52mAir Canada

Deal found 31/10C$ 582

Wed 4/124:20 p.m.YYZ - MCI

1 stop32h 39mAlaska Airlines

Mon 9/127:00 a.m.MCI - YYZ

1 stop30h 55mAlaska Airlines

Deal found 30/10C$ 583

Thu 28/116:05 a.m.YUL - STL

1 stop12h 20mDelta

Thu 5/1212:45 p.m.STL - YUL

1 stop25h 53mDelta

Deal found 29/10C$ 604

Best flights from Ontario to Missouri
Discover carefully curated flight deals from Ontario to Missouri that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 31 October 2024.

Tue 26/116:00 a.m.YUL - MCI

1 stop5h 29mAir Canada

Tue 3/126:00 a.m.MCI - YUL

1 stop10h 08mAir Canada

Deal found 29/10C$ 412

Wed 13/118:05 a.m.YUL - MCI

1 stop13h 25mUnited Airlines

Wed 20/118:05 a.m.MCI - YUL

1 stop8h 45mUnited Airlines

Deal found 30/10C$ 420

Mon 18/118:00 p.m.YYZ - MCI

1 stop9h 45mMultiple Airlines

Mon 25/115:50 p.m.MCI - YYZ

1 stop20h 26mMultiple Airlines

Deal found 30/10C$ 431

Mon 25/1112:30 p.m.YUL - MCI

1 stop11h 02mAmerican Airlines

Fri 29/115:07 a.m.MCI - YUL

1 stop16h 37mAmerican Airlines

Deal found 29/10C$ 447

Fri 6/1212:50 p.m.YUL - MCI

1 stop9h 32mDelta

Mon 9/125:45 a.m.MCI - YUL

1 stop10h 14mDelta

Deal found 29/10C$ 459

Sat 7/127:10 a.m.YUL - MCI

1 stop27h 45mWestJet

Mon 9/124:55 p.m.MCI - YUL

1 stop23h 04mWestJet

Deal found 29/10C$ 474

Wed 15/14:20 p.m.YYZ - MCI

1 stop22h 44mAlaska Airlines

Sat 8/22:59 p.m.MCI - YYZ

1 stop23h 06mAlaska Airlines

Deal found 30/10C$ 555

Tue 26/115:35 p.m.YUL - MCI

1 stop11h 47mMultiple Airlines

Sat 30/115:27 a.m.MCI - YUL

1 stop10h 08mMultiple Airlines

Deal found 29/10C$ 472

Tue 14/16:30 a.m.YUL - STL

1 stop9h 13mMultiple Airlines

Wed 15/15:05 p.m.STL - YUL

1 stop20h 35mMultiple Airlines

Deal found 29/10C$ 518

Tue 26/119:00 a.m.YYZ - MCI

1 stop6h 21mAir Canada

Tue 3/122:00 p.m.MCI - YYZ

1 stop7h 52mAir Canada

Deal found 31/10C$ 582

Thu 28/116:05 a.m.YUL - STL

1 stop12h 20mDelta

Thu 5/1212:45 p.m.STL - YUL

1 stop25h 53mDelta

Deal found 29/10C$ 604

Wed 4/1210:57 a.m.YYZ - STL

1 stop11h 20mAmerican Airlines

Thu 5/126:21 a.m.STL - YYZ

1 stop9h 19mAmerican Airlines

Deal found 30/10C$ 607

Direct flights from Ontario to Missouri
Explore direct flight options from Ontario to Missouri based on user searches, and compare prices and availability for your desired travel dates. Data last updated 31 October 2024.

Thu 5/121:50 p.m.YYZ - STL

Nonstop2h 16mAir Canada

Mon 9/123:50 p.m.STL - YYZ

Nonstop1h 55mAir Canada

Deal found 29/10C$ 625

Thu 5/121:50 p.m.YYZ - STL

Nonstop2h 16mMultiple Airlines

Mon 9/123:50 p.m.STL - YYZ

Nonstop1h 55mMultiple Airlines

Deal found 30/10C$ 643

Sat 7/121:50 p.m.YYZ - STL

Nonstop2h 16mUnited Airlines

Sun 8/123:50 p.m.STL - YYZ

Nonstop1h 55mUnited Airlines

Deal found 30/10C$ 654

Last-minute flights from Ontario to Missouri
Discover last-minute flight deals from Ontario to Missouri. Data last updated 31 October 2024 and is based on user searches.

Wed 6/1111:15 a.m.YYZ - STL

1 stop30h 19mMultiple Airlines

Wed 13/115:27 p.m.STL - YYZ

2 stops26h 33mMultiple Airlines

Deal found 30/10C$ 686

Wed 6/111:50 p.m.YYZ - STL

Nonstop2h 16mAir Canada

Wed 13/116:30 a.m.STL - YYZ

1 stop5h 01mAir Canada

Deal found 30/10C$ 814

Thu 7/111:25 p.m.YYZ - MCI

1 stop11h 30mWestJet

Mon 11/116:50 a.m.MCI - YYZ

1 stop8h 04mWestJet

Deal found 31/10C$ 977

Thu 7/114:20 p.m.YYZ - MCI

2 stops24h 24mAlaska Airlines

Mon 11/114:25 p.m.MCI - YYZ

2 stops21h 30mAlaska Airlines

Deal found 30/10C$ 1,914

Fri 8/113:55 p.m.YUL - STL

1 stop25h 39mMultiple Airlines

Sun 10/115:29 p.m.STL - YUL

1 stop20h 26mMultiple Airlines

Deal found 30/10C$ 651

Fri 8/117:00 a.m.YYZ - MCI

2 stops22h 45mMultiple Airlines

Mon 11/1110:43 p.m.MCI - YYZ

3 stops24h 24mMultiple Airlines

Deal found 30/10C$ 664

Fri 8/1110:57 a.m.YYZ - MCI

1 stop12h 35mAmerican Airlines

Sun 10/115:07 a.m.MCI - YYZ

1 stop4h 53mAmerican Airlines

Deal found 30/10C$ 996

Fri 8/118:15 a.m.YUL - STL

1 stop7h 51mAir Canada

Sat 9/118:05 a.m.STL - YUL

1 stop8h 14mAir Canada

Deal found 29/10C$ 1,020

Fri 8/111:10 p.m.YUL - STL

1 stop9h 26mUnited Airlines

Sat 9/117:00 a.m.STL - YUL

2 stops11h 00mUnited Airlines

Deal found 29/10C$ 1,080

Fri 8/116:45 a.m.YUL - STL

2 stops30h 10mWestJet

Sun 10/116:30 a.m.STL - YUL

1 stop15h 30mWestJet

Deal found 30/10C$ 1,127

Sat 9/1110:59 a.m.YUL - STL

2 stops9h 31mAmerican Airlines

Sat 16/116:00 a.m.STL - YUL

1 stop8h 25mAmerican Airlines

Deal found 29/10C$ 992

Sat 9/117:05 a.m.YUL - STL

2 stops10h 34mDelta

Sat 16/116:00 a.m.STL - YUL

2 stops11h 41mDelta

Deal found 29/10C$ 1,123

One-way flights from Ontario to Missouri
Search for one-way flight options from Ontario to Missouri. Find affordable one-way fares based on user searches. Data last updated 31 October 2024.

Wed 4/127:30 a.m.YYZ - STL

1 stop16h 54mMultiple Airlines

Deal found 30/10C$ 213

Tue 19/115:35 p.m.YYZ - MCI

1 stop18h 55mMultiple Airlines

Deal found 29/10C$ 230

Mon 18/113:55 p.m.YUL - STL

1 stop25h 39mMultiple Airlines

Deal found 30/10C$ 246

Sat 7/128:05 a.m.YUL - MCI

1 stop16h 35mAir Canada

Deal found 30/10C$ 249

Thu 12/129:15 a.m.YUL - MCI

1 stop6h 48mUnited Airlines

Deal found 30/10C$ 250

Sat 14/127:55 p.m.YYZ - SGF

1 stop15h 07mMultiple Airlines

Deal found 30/10C$ 274

Thu 5/125:35 p.m.YUL - MCI

1 stop20h 59mMultiple Airlines

Deal found 30/10C$ 282

Tue 26/111:50 p.m.YYZ - STL

Nonstop2h 16mAir Canada

Deal found 31/10C$ 333

Sat 14/127:45 a.m.YYZ - MCI

2 stops10h 53mUnited Airlines

Deal found 30/10C$ 355

Tue 26/1110:45 a.m.YYZ - STL

2 stops10h 06mUnited Airlines

Deal found 31/10C$ 369

Mon 2/127:12 p.m.YYZ - STL

1 stop5h 46mAmerican Airlines

Deal found 30/10C$ 376

Tue 3/1212:50 p.m.YUL - STL

1 stop8h 59mDelta

Deal found 30/10C$ 406

Best time to book a flight from Ontario to Missouri

Have a flexible travel schedule? Discover the best time to fly to Missouri from Ontario 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.

Travel insights for flights from Ontario to Missouri

Get recent, data-driven insights about flights from Ontario to Missouri including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Region of Ontario to Missouri (average of C$ 365). Flying from Region of Ontario to Missouri in September is currently the most expensive (average of C$ 491). 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 ON to MO?

When flying from Region of Ontario to Missouri, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Missouri by month

In terms of precipitation, rainfall in Missouri ranges from 56.0 - 119.0 mm per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit Missouri when rainfall is around 56.0 mm.

Temperature in Missouri by month

If weather is an important factor for your trip to Missouri, 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

Reviews of airlines servicing Missouri

Read through reviews of airlines operating flights from Ontario to Missouri, such as Delta, WestJet and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,420 reviews

Check prices

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Alaska Airlines

8.0

Very good

9,420 reviews

Alaska Airlines

8.0

Very good

9,420 reviews

Check prices

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Delta

8.0

Very good

8,835 reviews

Alaska Airlines

8.0

Very good

9,420 reviews

Check prices

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

United Airlines

7.4

Good

9,240 reviews

Alaska Airlines

8.0

Very good

9,420 reviews

Check prices

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

WestJet

7.3

Good

2,804 reviews

Alaska Airlines

8.0

Very good

9,420 reviews

Check prices

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,420 reviews

Check prices

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Related info for your journey

What are the cheapest airlines to fly from Region of Ontario to Missouri one-way?
The cheapest airlines for a one-way flight from Region of Ontario to Missouri are Air Canada (C$ 249), United Airlines (C$ 250), and American Airlines (C$ 376).
Can I find deals for flights from Ontario to Missouri that include hotel bookings?
Yes. In addition to deals on Ontario to Missouri flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Missouri?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Missouri.
Can I find deals for business class flights from Ontario to Missouri?
Yes. Cheapflights offers flight deals from Ontario to Missouri 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 Region of Ontario to Missouri?
Currently, January is the cheapest month in which you can book a flight from Region of Ontario to Missouri (average of C$ 365). Flying from Region of Ontario to Missouri in September is currently the most expensive (average of C$ 491). 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 Ontario to Missouri

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Calgary to Las Vegas flights

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Complete your trip

Missouri car rentals

Lambert-St Louis Airport car rentals

Kansas City Airport car rentals

Springfield-Branson Airport car rentals

Columbia Regional Airport car rentals

Joplin Airport car rentals

Fort Leonard Wood Waynesville Regional Airport car rentals

Cape Girardeau Airport car rentals

Kirksville Cannon Memorial Airport car rentals

Kansas City car rentals

St. Louis car rentals

Springfield car rentals

Direct flights to United States

Ontario to Missouri flights

Pearson Intl to St. Louis flights

Pierre Elliott Trudeau Intl to Kansas City flights

Pearson Intl to Kansas City flights

Pierre Elliott Trudeau Intl to St. Louis flights

Pearson Intl to Springfield flights

Ottawa to St. Louis flights

Ottawa to Kansas City flights

Pierre Elliott Trudeau Intl to Cape Girardeau flights

Pearson Intl to Columbia flights

Pearson Intl to Quincy flights

Top 5 airlines flying from Ontario to Missouri

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	CheapestC$ 482	AverageC$ 805	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air Canada	CheapestC$ 483	AverageC$ 748	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Delta	CheapestC$ 509	AverageC$ 588	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
American Airlines	CheapestC$ 592	AverageC$ 714	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
WestJet	CheapestC$ 601	AverageC$ 801	FlexibilityNo cancel fee	On-time60%	Search WestJet flights

Fly with Cheapflights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario to Missouri. 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 Ontario to Missouri?

Cheapflights helps you find that perfect flight to Missouri from Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario to Missouri, users can toggle the no change fees filter when performing a flight search.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from Ontario to Missouri from C$ 213

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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find flights from Ontario to Missouri within your budget

Find flight deals from Ontario to Missouri

Cheapest flights from Ontario to MissouriExplore the most affordable flight options available from Ontario to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2024.

Explore the most affordable flight options available from Ontario to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2024.

Best time to book a flight from Ontario to Missouri

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

Travel insights for flights from Ontario to Missouri

Get recent, data-driven insights about flights from Ontario to Missouri including ideal travel times, pricing trends, and more.

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

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

Find hourly flight availability from Ontario to Missouri. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 October 2024.

Rainfall in Missouri by month

Plan your trip to Missouri by taking into account the average rainfall totals by month.

Temperature in Missouri by month

Plan your trip to Missouri by taking into account the average temperature totals by month.

Reviews of airlines servicing Missouri

Read through reviews of airlines operating flights from Ontario to Missouri, such as Delta, WestJet and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What are the cheapest airlines to fly from Region of Ontario to Missouri one-way?

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

How can I find direct flights from Ontario to Missouri?

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

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

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 Ontario to Missouri

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

Top 5 airlines flying from Ontario to Missouri

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 Ontario to Missouri?

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

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

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

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Cheapest flights from Ontario to Missouri
Explore the most affordable flight options available from Ontario to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2024.