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$82+ 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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YYZ
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
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 December 18, 2024.

Round-trip from

$280
(Kiwi.com)

One-way from

$82
(Kiwi.com)
From Missouri to Ontario
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One-way flight from Missouri to Ontario
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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 December 18, 2024.

This Kiwi.com deal was found by Cheapflights users on 12/17. 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 12/243:53 pmSTL - YYZ
1 stop18h 52mMultiple Airlines
Tue 12/317:05 amYYZ - STL
1 stop9h 16mMultiple Airlines
Deal found 12/17$456
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 12/174:52 pmMCI - YYZ
1 stop17h 53mMultiple Airlines
Sun 1/58:15 pmYYZ - MCI
1 stop22h 50mMultiple Airlines
Deal found 12/17$493
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/244:27 pmSTL - YUL
1 stop21h 28mMultiple Airlines
Mon 12/303:55 pmYUL - STL
1 stop24h 26mMultiple Airlines
Deal found 12/16$561
This Air Canada deal was found by Cheapflights users on 12/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/178:00 amMCI - YUL
1 stop5h 47mAir Canada
Tue 12/248:05 amYUL - MCI
1 stop13h 23mAir Canada
Deal found 12/16$591
This WestJet deal was found by Cheapflights users on 12/17. 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.
Thu 12/264:14 pmMCI - YUL
2 stops31h 26mWestJet
Thu 1/97:05 amYUL - MCI
1 stop27h 58mWestJet
Deal found 12/17$593
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Sat 12/285:25 amMCI - YYZ
1 stop11h 15mAmerican Airlines
Sun 1/56:15 amYYZ - MCI
1 stop4h 34mAmerican Airlines
Deal found 12/17$594
This Mytrip deal was found by Cheapflights users on 12/17. 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.
Thu 12/267:11 pmMCI - YUL
2 stops21h 24mMultiple Airlines
Fri 1/102:35 pmYUL - MCI
2 stops21h 15mMultiple Airlines
Deal found 12/17$635
This Mytrip deal was found by Cheapflights users on 12/17. 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 12/287:11 pmMCI - YTZ
3 stops25h 14mMultiple Airlines
Sun 1/57:45 pmYTZ - MCI
2 stops23h 20mMultiple Airlines
Deal found 12/17$645
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/173:27 pmMCI - YUL
2 stops15h 18mUnited Airlines
Tue 12/248:05 amYUL - MCI
1 stop13h 23mUnited Airlines
Deal found 12/16$654
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Thu 12/2611:42 amSTL - YYZ
1 stop4h 58mAmerican Airlines
Sat 1/256:15 amYYZ - STL
1 stop8h 52mAmerican Airlines
Deal found 12/16$664
This Expedia deal was found by Cheapflights users on 12/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/3010:43 amMCI - YYZ
2 stops11h 51mWestJet
Sun 1/55:00 pmYYZ - MCI
1 stop8h 38mWestJet
Deal found 12/17$695
This Air Canada deal was found by Cheapflights users on 12/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/265:00 amSTL - YYZ
1 stop6h 31mAir Canada
Sat 1/251:50 pmYYZ - STL
Nonstop2h 16mAir Canada
Deal found 12/16$723

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 2,558,603 searches. Data last updated December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 1/14

5:05 pm-11:45 am

1 stop17h 40m

Toronto Pearson Intl

Tue 1/21

7:05 am-2:43 pm

1 stop8h 38m

$280

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Mon 1/27

7:54 pm-5:55 am

1 stop9h 01m

Toronto Pearson Intl

Mon 2/3

7:05 am-2:55 pm

1 stop8h 50m

$310

Kansas CityToronto

MCI - YTZ

MCIYTZ

Kansas City

Wed 1/8

10:46 pm-9:25 pm

2 stops21h 39m

Toronto Island

Wed 1/15

11:55 am-10:10 am

2 stops23h 15m

$322

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Tue 1/14

3:48 pm-2:55 pm

1 stop22h 07m

Montreal Pierre Elliott Trudeau Intl

Wed 1/15

6:35 pm-2:43 pm

1 stop21h 08m

$355

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Fri 1/31

6:40 pm-10:32 am

1 stop14h 52m

Montreal Pierre Elliott Trudeau Intl

Fri 2/7

9:15 am-2:29 pm

1 stop6h 14m

$366

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Fri 1/10

6:40 pm-7:45 am

2 stops12h 05m

Montreal Pierre Elliott Trudeau Intl

Thu 1/16

9:15 am-3:04 pm

1 stop6h 49m

$372

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Thu 1/2

5:20 am-5:08 pm

1 stop10h 48m

Montreal Pierre Elliott Trudeau Intl

Tue 1/7

11:15 am-7:49 pm

2 stops9h 34m

$378

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Fri 1/31

3:55 pm-10:45 pm

1 stop5h 50m

Montreal Pierre Elliott Trudeau Intl

Fri 2/7

10:54 am-10:19 pm

2 stops12h 25m

$379

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 1/8

6:05 am-4:11 pm

1 stop9h 06m

Toronto Pearson Intl

Wed 1/22

5:05 pm-8:58 am

1 stop16h 53m

$443

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Fri 1/31

12:00 pm-12:40 am

2 stops11h 40m

Montreal Pierre Elliott Trudeau Intl

Fri 2/7

1:30 pm-11:25 pm

2 stops10h 55m

$458

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 43 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 $243). 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 December 18, 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 December 18, 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 December 18, 2024.
Peruse reviews from past customers who have flown with Delta, Alaska Airlines and United Airlines 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
9,552 reviews

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Alaska Airlines
8.0
Very good
9,552 reviews
Alaska Airlines
8.0
Very good
9,552 reviews

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Delta
8.0
Very good
8,604 reviews
Alaska Airlines
8.0
Very good
9,552 reviews

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

United Airlines
7.4
Good
9,059 reviews
Alaska Airlines
8.0
Very good
9,552 reviews

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

WestJet
7.3
Good
2,818 reviews
Alaska Airlines
8.0
Very good
9,552 reviews

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,552 reviews

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

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 United Airlines, with whom users have recently found tickets for as low as $154. However, be on the lookout for offers from Delta and American 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 $243). 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 2,558,603 searches. Data last updated December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$202Average$559FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$226Average$602FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$304Average$577FlexibilityNo cancel feeOn-time71%
DeltaCheapest$461Average$594FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$489Average$678FlexibilityNo cancel feeOn-time60%
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