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

Airlines like Delta, American Airlines, and United Airlines fly from Region of Ontario to Missouri in about 4h 29m. The time it takes to get you to your destination can typically vary by up to 11h 58m. The distance between Region of Ontario and Missouri is about 1181 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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.

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).

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$ 284+ Cheap Flights from Ontario to Missouri

Cheap flight deals from Ontario to Missouri

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 30 October 2026.

Fri 11/1211:36 a.m. -

1 stop9h 22m

Fri 18/126:00 a.m. -

1 stop10h 40m

Deal found 27/10C$ 478

Thu 10/121:40 p.m. -

2 stops22h 17m

Tue 15/126:20 p.m. -

1 stop18h 20m

Deal found 28/10C$ 524

Tue 24/117:09 a.m. -

1 stop8h 58m

Tue 1/125:38 a.m. -

1 stop9h 55m

Deal found 27/10C$ 575

Mon 14/1211:36 a.m. -

1 stop8h 13m

Thu 24/126:00 a.m. -

1 stop10h 38m

Deal found 28/10C$ 579

Thu 26/116:30 a.m. -

1 stop18h 29m

Thu 3/126:13 p.m. -

1 stop18h 27m

Deal found 29/10C$ 582

Tue 1/1211:45 a.m. -

1 stop9h 05m

Tue 8/127:27 a.m. -

1 stop9h 16m

Deal found 27/10C$ 586

Tue 1/123:15 p.m. -

1 stop7h 59m

Thu 17/125:07 a.m. -

1 stop8h 37m

Deal found 26/10C$ 587

Mon 7/126:30 a.m. -

1 stop18h 42m

Thu 10/126:20 p.m. -

1 stop18h 20m

Deal found 28/10C$ 594

Mon 7/126:30 a.m. -

1 stop18h 42m

Wed 9/127:54 p.m. -

2 stops16h 46m

Deal found 28/10C$ 597

Tue 24/113:15 p.m. -

1 stop9h 46m

Tue 1/126:00 a.m. -

1 stop7h 33m

Deal found 25/10C$ 599

Mon 7/126:30 a.m. -

1 stop18h 42m

Fri 11/1212:02 p.m. -

2 stops24h 38m

Deal found 28/10C$ 603

Sun 15/117:35 a.m. -

1 stop26h 21m

Wed 18/118:43 p.m. -

2 stops21h 56m

Deal found 29/10C$ 642

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 30 October 2026.

Sat 9/17:50 a.m. -

1 stop10h 24m

Wed 13/11:37 p.m. -

1 stop8h 40m

Deal found 26/10C$ 713

Thu 26/116:30 a.m. -

1 stop28h 46m

Thu 3/128:29 p.m. -

2 stops16h 11m

Deal found 29/10C$ 720

Sat 19/122:15 p.m. -

1 stop10h 44m

Tue 22/126:00 a.m. -

2 stops13h 28m

Deal found 26/10C$ 846

Mon 16/116:21 p.m. -

1 stop16h 27m

Sat 21/116:28 p.m. -

1 stop15h 31m

Deal found 27/10C$ 859

Tue 29/1210:05 a.m. -

1 stop6h 21m

Mon 4/14:05 p.m. -

1 stop5h 50m

Deal found 25/10C$ 919

Tue 26/16:05 a.m. -

1 stop13h 11m

Thu 28/17:15 a.m. -

1 stop9h 39m

Deal found 26/10C$ 744

Tue 24/1112:30 p.m. -

2 stops25h 04m

Fri 27/118:29 p.m. -

3 stops26h 26m

Deal found 25/10C$ 801

Sat 24/47:00 a.m. -

1 stop4h 29m

Tue 27/49:00 a.m. -

1 stop12h 44m

Deal found 27/10C$ 867

Wed 25/1112:20 p.m. -

1 stop5h 06m

Sun 29/116:36 a.m. -

1 stop5h 54m

Deal found 25/10C$ 810

Sun 22/112:10 p.m. -

Nonstop2h 16m

Mon 30/114:05 p.m. -

Nonstop2h 00m

Deal found 29/10C$ 945

Sun 13/128:35 a.m. -

1 stop7h 03m

Tue 15/127:30 a.m. -

1 stop10h 15m

Deal found 27/10C$ 869

Sat 21/112:35 p.m. -

1 stop7h 49m

Sun 29/116:36 a.m. -

1 stop3h 43m

Deal found 26/10C$ 810

Tue 29/126:00 a.m. -

2 stops12h 08m

Mon 4/14:05 p.m. -

1 stop5h 50m

Deal found 25/10C$ 944

Fri 13/1110:30 a.m. -

2 stops13h 40m

Mon 16/113:10 p.m. -

2 stops7h 42m

Deal found 27/10C$ 891

Sun 22/116:30 a.m. -

1 stop6h 25m

Sun 29/116:36 a.m. -

1 stop3h 43m

Deal found 25/10C$ 832

Fri 4/126:10 a.m. -

3 stops38h 25m

Mon 7/128:32 p.m. -

2 stops26h 37m

Deal found 27/10C$ 944

Fri 18/129:45 a.m. -

1 stop4h 45m

Tue 22/126:30 a.m. -

1 stop3h 45m

Deal found 29/10C$ 852

Sat 5/126:00 a.m. -

1 stop18h 35m

Mon 7/126:45 p.m. -

2 stops19h 22m

Deal found 27/10C$ 945

Sun 29/116:45 a.m. -

1 stop6h 25m

Sat 5/124:05 p.m. -

Nonstop2h 00m

Deal found 29/10C$ 950

Fri 20/1110:14 a.m. -

1 stop8h 50m

Thu 26/1112:00 p.m. -

1 stop4h 20m

Deal found 29/10C$ 852

Wed 25/112:00 p.m. -

1 stop25h 37m

Wed 2/125:50 p.m. -

2 stops18h 21m

Deal found 27/10C$ 945

Thu 7/112:00 p.m. -

1 stop10h 37m

Sun 10/14:05 p.m. -

Nonstop2h 00m

Deal found 27/10C$ 978

Wed 25/113:10 p.m. -

1 stop18h 42m

Wed 2/121:18 p.m. -

2 stops24h 11m

Deal found 28/10C$ 948

Mon 30/117:35 a.m. -

1 stop9h 58m

Mon 7/123:30 p.m. -

1 stop7h 28m

Deal found 26/10C$ 891

Tue 8/126:15 a.m. -

1 stop7h 07m

Fri 11/125:25 a.m. -

2 stops8h 42m

Deal found 27/10C$ 961

Thu 12/116:05 a.m. -

1 stop6h 43m

Fri 13/112:31 p.m. -

1 stop8h 26m

Deal found 27/10C$ 930

Fri 4/123:10 p.m. -

2 stops18h 46m

Mon 7/126:00 a.m. -

2 stops14h 56m

Deal found 27/10C$ 961

Wed 11/119:45 a.m. -

1 stop8h 29m

Fri 13/116:40 a.m. -

1 stop5h 50m

Deal found 27/10C$ 930

Fri 11/129:45 a.m. -

2 stops10h 41m

Mon 14/1210:50 a.m. -

2 stops7h 37m

Deal found 26/10C$ 962

Tue 8/126:00 a.m. -

2 stops12h 35m

Thu 10/126:00 a.m. -

2 stops12h 27m

Deal found 26/10C$ 962

Find flight deals from Ontario to Missouri

Round-trip from	C$ 478
One-way from	C$ 284
Popular in	March
Cheapest in	January
Average price	C$ 996
Good round-trip deal	C$ 810 or less

American Airlines
11/12-18/12
2 total stops
20h 02m total
Ontario to Missouri

Search Deals

22/11-31/12
2 total stops
25h 21m total
Ontario to Missouri

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (C$ 138 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease (C$ 65 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Price to beat on a round-trip flight from Ontario to Missouri.

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Sun 22/11

1:00 p.m.-1:21 p.m.

2 stops25h 21m

Lambert-St Louis

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 284

TorontoKansas City

YYZ Toronto Pearson Intl - MCI Kansas City

YYZMCI

Toronto Pearson Intl

Sun 6/12

9:20 a.m.-3:59 p.m.

1 stop31h 39m

Kansas City

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 302

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Thu 10/12

6:30 a.m.-11:17 a.m.

2 stops29h 47m

Lambert-St Louis

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 304

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Wed 25/11

11:45 a.m.-7:50 p.m.

1 stop9h 05m

Lambert-St Louis

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 331

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Thu 10/12

1:22 p.m.-10:17 p.m.

1 stop9h 55m

Lambert-St Louis

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 334

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Thu 19/11

1:16 p.m.-10:14 p.m.

1 stop9h 58m

Lambert-St Louis

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 340

TorontoKansas City

YYZ Toronto Pearson Intl - MCI Kansas City

YYZMCI

Toronto Pearson Intl

Thu 10/12

6:10 a.m.-7:54 p.m.

1 stop14h 44m

Kansas City

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 371

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Thu 19/11

6:25 p.m.-5:40 p.m.

2 stops24h 15m

Lambert-St Louis

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 375

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Wed 25/11

9:50 a.m.-11:03 a.m.

3 stops50h 13m

Lambert-St Louis

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 379

TorontoKansas City

YYZ Toronto Pearson Intl - MCI Kansas City

YYZMCI

Toronto Pearson Intl

Sun 13/12

6:00 a.m.-7:19 p.m.

2 stops14h 19m

Kansas City

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 385

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/10

Showing 1-10 of 59 resultsSorted by cheapest first

...

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.

YYZ-STL

YYZ-MCI

YYZ-COU

YOW-STL

YYZ-SGF

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 Ontario to Missouri

CAON-USMO

YYZ-STL

YYZ-MCI

YYZ-COU

YOW-STL

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$ 590). Flying from Region of Ontario to Missouri in July is currently the most expensive (average of C$ 1,340). 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?

A simple way to save on the total cost of your ticket is to fly from Region of Ontario to Missouri in the afternoon. If you’re flexible enough to do this you can expect to save up to 36% on your trip compared to booking a flight in the evening.

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

Airfare is below average for this route at the moment.

Region of Ontario to Missouri flights typically cost between C$ 752 and C$ 930 in December.
The cheapest round-trip price found within the last 5 days was C$ 478 on American Airlines (11 Dec-18 Dec).

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

Booking 72 days in advance of your planned departure date is, on average, the best time to get cheap flights from Region of Ontario to Missouri. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Missouri

Get a feel of what it's like to fly with Delta,United Airlines, andWestJet from Ontario to Missouri by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.8

Good

8,693 reviews

Check prices

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

Delta

7.8

Good

8,693 reviews

Delta

7.8

Good

8,693 reviews

Check prices

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

United Airlines

7.3

Good

10,451 reviews

Delta

7.8

Good

8,693 reviews

Check prices

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

WestJet

7.2

Good

3,442 reviews

Delta

7.8

Good

8,693 reviews

Check prices

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

Air Canada

7.1

Good

11,833 reviews

Delta

7.8

Good

8,693 reviews

Check prices

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

American Airlines

7.0

Good

12,210 reviews

Delta

7.8

Good

8,693 reviews

Check prices

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

Related info for your journey

How long is the flight from Region of Ontario to Missouri?
Airlines like Delta, American Airlines, and United Airlines fly from Region of Ontario to Missouri in about 4h 29m. The time it takes to get you to your destination can typically vary by up to 11h 58m. The distance between Region of Ontario and Missouri is about 1181 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
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$ 590). Flying from Region of Ontario to Missouri in July is currently the most expensive (average of C$ 1,340). 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

Complete your trip

Direct flights to United States

Flights by cabin class

Other flight options

Popular flights

Return Flight Options

Top destinations

Alternative routes for Ontario to Missouri

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Top 5 airlines flying from Ontario to Missouri

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	CheapestC$ 349	AverageC$ 733	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air Canada	CheapestC$ 411	AverageC$ 784	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Delta	CheapestC$ 565	AverageC$ 737	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
WestJet	CheapestC$ 627	AverageC$ 836	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
American Airlines	CheapestC$ 634	AverageC$ 798	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

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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$ 284

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 30 October 2026.

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 30 October 2026.

Best flights from Ontario to MissouriDiscover 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 30 October 2026.

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 30 October 2026.

Direct flights from Ontario to MissouriExplore direct flight options from Ontario to Missouri based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 October 2026.

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 30 October 2026.

Last-minute flights from Ontario to MissouriDiscover last-minute flight deals from Ontario to Missouri. Data last updated 30 October 2026 and is based on user searches.

Discover last-minute flight deals from Ontario to Missouri. Data last updated 30 October 2026 and is based on user searches.

One-way flights from Ontario to MissouriSearch for one-way flight options from Ontario to Missouri. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Search for one-way flight options from Ontario to Missouri. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Find flight deals from Ontario to Missouri

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Missouri that are best for you.

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.

Cheapflights Insights

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 30 October 2026.

A simple way to save on the total cost of your ticket is to fly from Region of Ontario to Missouri in the afternoon. If you’re flexible enough to do this you can expect to save up to 36% on your trip compared to booking a flight in the evening.

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

Airfare is below average for this route at the moment.

Region of Ontario to Missouri flights typically cost between C$ 752 and C$ 930 in December.The cheapest round-trip price found within the last 5 days was C$ 478 on American Airlines (11 Dec-18 Dec).

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

Booking 72 days in advance of your planned departure date is, on average, the best time to get cheap flights from Region of Ontario to Missouri. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Missouri

Get a feel of what it's like to fly with Delta,United Airlines, andWestJet from Ontario to Missouri by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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.

Complete your trip

Complete your trip to Missouri by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from Ontario to Missouri by cabin class

Find flights from Ontario to Missouri, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Ontario and Missouri flights

Browse other Ontario and Missouri flight options. Last updated on 30 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Find a return flight route from Missouri

Find the right flight back to Ontario after your stay in Missouri

Ontario to Missouri flights

Consider these flights travelling from Ontario to Missouri.

Top 5 airlines flying from Ontario to Missouri

Fly with Cheapflights

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 30 October 2026.

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 30 October 2026.

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 30 October 2026.

Last-minute flights from Ontario to Missouri
Discover last-minute flight deals from Ontario to Missouri. Data last updated 30 October 2026 and is based on user searches.

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 30 October 2026.

Region of Ontario to Missouri flights typically cost between C$ 752 and C$ 930 in December.
The cheapest round-trip price found within the last 5 days was C$ 478 on American Airlines (11 Dec-18 Dec).