Missouri

$144+ Cheap flights from Ontario to Missouri

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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — STL
Jan 5 — Jan 121
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Cheap flight deals from Ontario to Missouri

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (CAON) to Missouri (USMO). 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 31, 2024.

Round-trip from

$263
(Air Canada)

One-way from

$144
(Kiwi.com)
From Ontario to Missouri
One-way flight from Ontario to Missouri

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 December 31, 2024.

This United Airlines deal was found by Cheapflights users on 12/30. 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 12/318:05 amYUL - MCI
1 stop13h 23mUnited Airlines
Tue 1/711:31 amMCI - YUL
2 stops19h 14mUnited Airlines
Deal found 12/30$474
This Kiwi.com deal was found by Cheapflights users on 12/30. 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 12/317:10 amYYZ - STL
1 stop17h 18mMultiple Airlines
Tue 1/74:27 pmSTL - YYZ
1 stop21h 50mMultiple Airlines
Deal found 12/30$499
This Trip.com deal was found by Cheapflights users on 12/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/317:10 amYUL - MCI
1 stop10h 54mWestJet
Tue 1/75:45 pmMCI - YUL
1 stop21h 15mWestJet
Deal found 12/30$559
This Air Canada deal was found by Cheapflights users on 12/30. 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.
Mon 12/301:15 pmYUL - MCI
2 stops11h 13mAir Canada
Sat 1/48:00 amMCI - YUL
1 stop12h 17mAir Canada
Deal found 12/30$595
This WestJet deal was found by Cheapflights users on 12/29. 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 12/306:16 pmYYZ - SGF
1 stop19h 10mWestJet
Mon 1/65:45 pmSGF - YYZ
1 stop22h 15mWestJet
Deal found 12/29$741
This FlightHub deal was found by Cheapflights users on 12/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/306:30 amYYZ - MCI
1 stop9h 36mWestJet
Thu 1/26:13 pmMCI - YYZ
1 stop20h 41mWestJet
Deal found 12/29$744
This American Airlines deal was found by Cheapflights users on 12/29. 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.
Mon 12/301:10 pmYYZ - SGF
2 stops8h 10mAmerican Airlines
Mon 1/611:18 amSGF - YYZ
1 stop10h 17mAmerican Airlines
Deal found 12/29$751
This Delta deal was found by Cheapflights users on 12/30. 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.
Tue 12/317:00 amYYZ - STL
1 stop6h 00mDelta
Tue 1/76:30 amSTL - YYZ
2 stops10h 26mDelta
Deal found 12/30$778
This American Airlines deal was found by Cheapflights users on 12/30. 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 12/317:00 amYYZ - MCI
2 stops9h 05mAmerican Airlines
Sat 1/45:25 amMCI - YYZ
1 stop11h 15mAmerican Airlines
Deal found 12/30$795
This Delta deal was found by Cheapflights users on 12/30. 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.
Tue 12/311:00 pmYYZ - MCI
1 stop5h 04mDelta
Sun 1/56:15 amMCI - YYZ
1 stop8h 59mDelta
Deal found 12/30$847
This Mytrip deal was found by Cheapflights users on 12/30. 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.
Tue 12/316:00 pmYYZ - MCI
2 stops25h 05mMultiple Airlines
Fri 1/310:46 pmMCI - YYZ
2 stops24h 04mMultiple Airlines
Deal found 12/30$860
This Mytrip deal was found by Cheapflights users on 12/29. 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.
Mon 12/307:55 pmYYZ - SGF
1 stop12h 37mMultiple Airlines
Mon 1/610:26 pmSGF - YYZ
3 stops24h 18mMultiple Airlines
Deal found 12/29$932

Find flights from Ontario to Missouri within your budget

Customize your flight search to find flights from Ontario to Missouri 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 31, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

MontrealKansas City

YUL - MCI

YULMCI

Montreal Pierre Elliott Trudeau Intl

Sat 1/18

6:00 am-7:49 pm

1 stop14h 49m

Kansas City

Sat 1/25

8:00 am-5:19 pm

1 stop8h 19m

$263

MontrealKansas City

YUL - MCI

YULMCI

Montreal Pierre Elliott Trudeau Intl

Mon 1/13

8:05 am-4:09 pm

1 stop9h 04m

Kansas City

Tue 1/21

6:40 pm-7:45 am

2 stops12h 05m

$298

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 1/16

6:45 am-11:31 pm

1 stop17h 46m

Lambert-St Louis

Mon 1/20

7:09 pm-4:35 pm

2 stops20h 26m

$321

TorontoKansas City

YYZ - MCI

YYZMCI

Toronto Pearson Intl

Fri 1/17

2:00 pm-2:55 pm

3 stops25h 55m

Kansas City

Mon 1/20

12:05 pm-11:45 am

3 stops22h 40m

$394

TorontoKansas City

YYZ - MCI

YYZMCI

Toronto Pearson Intl

Wed 1/29

2:00 pm-7:49 pm

1 stop6h 49m

Kansas City

Sat 2/1

9:55 am-4:46 pm

1 stop5h 51m

$395

TorontoKansas City

YYZ - MCI

YYZMCI

Toronto Pearson Intl

Wed 2/12

6:00 am-10:03 am

1 stop5h 03m

Kansas City

Thu 2/20

4:05 pm-11:07 pm

1 stop6h 02m

$399

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 1/27

8:00 am-3:38 pm

1 stop8h 38m

Lambert-St Louis

Mon 2/3

8:27 am-4:27 pm

1 stop7h 00m

$410

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 1/23

7:05 am-8:10 pm

3 stops38h 05m

Lambert-St Louis

Sun 1/26

5:15 pm-11:55 pm

3 stops29h 40m

$415

MontrealKansas City

YUL - MCI

YULMCI

Montreal Pierre Elliott Trudeau Intl

Fri 1/17

2:35 pm-10:50 am

2 stops21h 15m

Kansas City

Mon 1/20

4:04 pm-12:40 am

3 stops31h 36m

$418

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Wed 1/29

11:20 am-9:06 pm

1 stop10h 46m

Lambert-St Louis

Wed 2/5

10:20 am-9:03 pm

1 stop9h 43m

$419

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/31

Showing 1-10 of 47 results
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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, August is the cheapest month in which you can book a flight from Region of Ontario to Missouri (average of $311). Flying from Region of Ontario to Missouri in March is currently the most expensive (average of $356). 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?

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 December 31, 2024.

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

Weekly flight availability from Region of Ontario to Missouri

Explore weekly flight availability from Ontario to Missouri. 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 31, 2024.

The most flights from CAON to USMO are scheduled on a Monday (2 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Missouri by month

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

In terms of precipitation, rainfall in Missouri ranges from 1.1 - 5.2 inches per month. May is typically the wettest month, when rainfall can reach 5.2 in. January is typically the driest time to visit Missouri when rainfall is around 1.1 in.

Temperature in Missouri by month

Plan your trip to Missouri by taking into account the average temperature totals 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Missouri

Get insights into the airlines that provide service to Missouri. 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 Missouri. Reviews last updated December 31, 2024.
To help decide which airline to fly from Ontario to Missouri, see what other customers have to say about Alaska Airlines, Air Canada and Delta. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
9,601 reviews

Entertainment

7.1

Food

7.2

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 10

One or two midday non-stop flights from PDX to Santa Rosa would be great. The very early and late options are hard on older passengers.

8.0
Very good
9,601 reviews
8.0
Very good
9,601 reviews

Entertainment

7.1

Food

7.2

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 10

One or two midday non-stop flights from PDX to Santa Rosa would be great. The very early and late options are hard on older passengers.

8.0
Very good
8,537 reviews
8.0
Very good
9,601 reviews

Entertainment

7.1

Food

7.2

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 10

One or two midday non-stop flights from PDX to Santa Rosa would be great. The very early and late options are hard on older passengers.

7.4
Good
8,978 reviews
8.0
Very good
9,601 reviews

Entertainment

7.1

Food

7.2

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 10

One or two midday non-stop flights from PDX to Santa Rosa would be great. The very early and late options are hard on older passengers.

7.3
Good
2,813 reviews
8.0
Very good
9,601 reviews

Entertainment

7.1

Food

7.2

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 10

One or two midday non-stop flights from PDX to Santa Rosa would be great. The very early and late options are hard on older passengers.

7.2
Good
10,000 reviews
8.0
Very good
9,601 reviews

Entertainment

7.1

Food

7.2

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 10

One or two midday non-stop flights from PDX to Santa Rosa would be great. The very early and late options are hard on older passengers.

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?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $178. WestJet flights start at $209 while deals on Air Canada start at $226 one-way.

  • 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, August is the cheapest month in which you can book a flight from Region of Ontario to Missouri (average of $311). Flying from Region of Ontario to Missouri in March is currently the most expensive (average of $356). 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 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

Discover the top 5 airlines that operate flights from Ontario to Missouri. 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 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$264Average$520FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$329Average$533FlexibilityNo cancel feeOn-time69%
DeltaCheapest$379Average$494FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$382Average$440FlexibilityNo cancel feeOn-time71%
WestJetCheapest$443Average$606FlexibilityNo cancel feeOn-time60%
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