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$119+ Cheap flights from Missouri to Ontario

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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YYZ
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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Cheap flight deals from Missouri to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Missouri (USMO) to Ontario (CAON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Find flight deals from Missouri to Ontario

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 November 20, 2024.

This Kiwi.com deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/144:52 pmMCI - YYZ
1 stop16h 02mMultiple Airlines
Tue 12/177:10 amYYZ - MCI
1 stop9h 37mMultiple Airlines
Deal found 11/19$314
This Kiwi.com deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/35:02 pmSTL - YYZ
1 stop20h 22mMultiple Airlines
Wed 12/48:00 pmYYZ - STL
2 stops20h 21mMultiple Airlines
Deal found 11/20$315
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1011:35 amMCI - YUL
1 stop8h 42mUnited Airlines
Tue 12/179:15 amYUL - MCI
1 stop9h 23mUnited Airlines
Deal found 11/20$372
This Mytrip deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/611:02 pmMCI - YUL
1 stop16h 33mMultiple Airlines
Tue 12/102:35 pmYUL - MCI
2 stops23h 59mMultiple Airlines
Deal found 11/20$386
This WestJet deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/97:15 pmSTL - YYZ
2 stops26h 58mWestJet
Wed 12/116:15 amYYZ - STL
1 stop28h 07mWestJet
Deal found 11/20$437
This Mytrip deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1411:02 pmMCI - YTZ
2 stops22h 21mMultiple Airlines
Tue 12/171:10 pmYTZ - MCI
3 stops33h 41mMultiple Airlines
Deal found 11/18$437
This Delta deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/512:37 pmMCI - YUL
1 stop10h 22mDelta
Sun 12/87:00 amYUL - MCI
1 stop9h 50mDelta
Deal found 11/18$441
This CheapOair deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/56:20 pmMCI - YUL
2 stops29h 20mWestJet
Sun 12/86:09 pmYUL - MCI
1 stop28h 03mWestJet
Deal found 11/18$481
This American Airlines deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/185:45 amSTL - YYZ
1 stop10h 50mAmerican Airlines
Wed 12/256:15 amYYZ - STL
1 stop10h 25mAmerican Airlines
Deal found 11/18$509
This Kiwi.com deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/276:32 pmSTL - YUL
1 stop19h 08mMultiple Airlines
Wed 12/43:55 pmYUL - STL
1 stop24h 26mMultiple Airlines
Deal found 11/19$517
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1811:20 amSTL - YYZ
1 stop9h 05mUnited Airlines
Wed 12/258:00 amYYZ - STL
1 stop12h 57mUnited Airlines
Deal found 11/20$534
This American Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/315:00 amMCI - YUL
1 stop16h 50mAmerican Airlines
Sun 1/57:13 amYUL - MCI
1 stop17h 54mAmerican Airlines
Deal found 11/19$541

Find flights from Missouri to Ontario within your budget

Customize your flight search to find flights from Missouri to 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, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Sat 12/14

4:52 pm-9:54 am

1 stop16h 02m

Toronto Pearson Intl

Tue 12/17

7:10 am-3:47 pm

1 stop9h 37m

$314

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 12/3

5:02 pm-2:24 pm

1 stop20h 22m

Toronto Pearson Intl

Wed 12/4

8:00 pm-3:21 pm

2 stops20h 21m

$315

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Tue 12/10

11:35 am-9:17 pm

1 stop8h 42m

Montreal Pierre Elliott Trudeau Intl

Tue 12/17

9:15 am-5:38 pm

1 stop9h 23m

$372

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Fri 12/6

11:02 pm-4:35 pm

1 stop16h 33m

Montreal Pierre Elliott Trudeau Intl

Tue 12/10

2:35 pm-1:34 pm

2 stops23h 59m

$386

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Thu 1/9

5:35 am-5:02 pm

1 stop10h 27m

Montreal Pierre Elliott Trudeau Intl

Sun 1/12

11:20 am-4:50 pm

1 stop6h 30m

$394

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Wed 12/18

11:45 am-8:09 pm

1 stop7h 24m

Ottawa

Tue 12/31

9:20 am-11:28 pm

1 stop15h 08m

$400

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Sun 1/12

2:59 pm-3:05 pm

1 stop23h 06m

Toronto Pearson Intl

Fri 1/17

4:20 pm-2:04 pm

1 stop22h 44m

$428

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 12/9

7:15 pm-11:13 pm

2 stops26h 58m

Toronto Pearson Intl

Wed 12/11

6:15 am-9:22 am

1 stop28h 07m

$437

Kansas CityToronto

MCI - YTZ

MCIYTZ

Kansas City

Sat 12/14

11:02 pm-10:23 pm

2 stops22h 21m

Toronto Island

Tue 12/17

1:10 pm-9:51 pm

3 stops33h 41m

$437

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Wed 2/12

10:33 am-4:00 pm

1 stop4h 27m

Montreal Pierre Elliott Trudeau Intl

Mon 2/17

1:30 pm-11:24 pm

2 stops10h 54m

$474

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 53 results
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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.

Travel insights for flights from Missouri to Ontario

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

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

Currently, January is the cheapest month in which you can book a flight from Missouri to Region of Ontario (average of $242). Flying from Missouri to Region of Ontario in July is currently the most expensive (average of $359). 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?

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 November 20, 2024.

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

Weekly flight availability from Missouri to Region of Ontario

Explore weekly flight availability from Missouri to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 20, 2024.

The most flights from USMO to CAON are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Region of Ontario ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

Temperature in Ontario by month

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

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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated November 20, 2024.
Peruse reviews from past customers who have flown with American Airlines, Air Canada and Delta from Missouri to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,461 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.9

Food

7.2

Boarding

8.2

Crew

8.5

Reviews

1 / 10

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

Alaska Airlines
8.0
Very good
9,461 reviews
Alaska Airlines
8.0
Very good
9,461 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.9

Food

7.2

Boarding

8.2

Crew

8.5

Reviews

1 / 10

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

Delta
8.0
Very good
8,756 reviews
Alaska Airlines
8.0
Very good
9,461 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.9

Food

7.2

Boarding

8.2

Crew

8.5

Reviews

1 / 10

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

United Airlines
7.4
Good
9,171 reviews
Alaska Airlines
8.0
Very good
9,461 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.9

Food

7.2

Boarding

8.2

Crew

8.5

Reviews

1 / 10

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

WestJet
7.3
Good
2,811 reviews
Alaska Airlines
8.0
Very good
9,461 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.9

Food

7.2

Boarding

8.2

Crew

8.5

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
9,461 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.9

Food

7.2

Boarding

8.2

Crew

8.5

Reviews

1 / 10

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

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.

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

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $157. However, be on the lookout for offers from United Airlines and Alaska Airlines, as they are both options that can get you from Missouri to Region of Ontario for a low price.

  • 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, January is the cheapest month in which you can book a flight from Missouri to Region of Ontario (average of $242). Flying from Missouri to Region of Ontario in July is currently the most expensive (average of $359). 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

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Alternative routes for Missouri to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Missouri to Ontario

Discover the top 5 airlines that operate flights from Missouri to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$197Average$557FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$225Average$575FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$304Average$553FlexibilityNo cancel feeOn-time71%
DeltaCheapest$461Average$579FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$489Average$592FlexibilityNo cancel feeOn-time60%
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