What is the cheapest airline that flies from Ontario to Missouri?

Delta, American Airlines, and United Airlines are the most popular carriers operating from Ontario to Missouri

How many flights depart from Region of Ontario to Missouri on average per day?

As of September 2026, there are 4 flights per day flying from Region of Ontario to Missouri. The most common time of day flights depart is 12:00PM, with 50% of flights taking off in the afternoon.

How many flights depart from Region of Ontario to Missouri on average per week?

As of September 2026, there are 28 flights per week flying from Region of Ontario to Missouri. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

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

The flight from Region of Ontario to Missouri depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Toronto (a popular airport in Region of Ontario) to St. Louis (the most popular airport in Missouri), then the flight time is 2h 05m on average. If you fly from Ottawa (another popular airport in Region of Ontario) to St. Louis, then the average flight time is 10h 55m.

What airlines fly to Missouri?

Air Canada, Delta and United Airlines are the top three most popular airlines that fly to Missouri from Region of Ontario according to our data. Air Canada is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Missouri. Keep in mind that there are 5 different airlines that fly to Missouri on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario to Missouri?

Prices for flights from Ontario to Missouri were last updated today.

How many operators does momondo search for flights from Ontario to Missouri?

The number of operators available for flights from Ontario to Missouri is 5 as of September 2026.

How old do you have to be to fly from Ontario to Missouri?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Missouri.

What documentation or ID do you need to fly to Missouri?

The required travel and health documents for your Missouri trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Missouri. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$160 Cheap Flights from Ontario to Missouri in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Missouri

Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

9:15 am - 7:47 pmYYZ Toronto Pearson Intl-MCI Kansas City

35h 32m2 stops Tampa Denver Intl

9:46 am - 10:55 pmMCI Kansas City-YYZ Toronto Pearson Intl

12h 09m1 stop Fort Lauderdale

$386Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

7:15 am - 5:40 pmYYZ Toronto Pearson Intl-STL Lambert-St Louis

11h 25m2 stops Orlando Atlanta Hartsfield-Jackson

6:44 pm - 3:20 pmSTL Lambert-St Louis-YYZ Toronto Pearson Intl

19h 36m2 stops Atlanta Hartsfield-Jackson Fort Lauderdale

$388Multiple Airlines

Wed, Oct 28 - Wed, Nov 4

12:44 pm - 10:05 pmYYZ Toronto Pearson Intl-MCI Kansas City

10h 21m1 stop Washington, D.C. Reagan-National

6:00 am - 4:34 pmMCI Kansas City-YYZ Toronto Pearson Intl

9h 34m1 stop Washington, D.C. Reagan-National

$460American Airlines

Mon, Nov 9 - Mon, Nov 16

11:09 am - 9:46 pmYYZ Toronto Pearson Intl-MCI Kansas City

11h 37m1 stop Washington, D.C. Reagan-National

6:00 am - 4:47 pmMCI Kansas City-YYZ Toronto Pearson Intl

9h 47m1 stop Washington, D.C. Reagan-National

$461American Airlines

Tue, Oct 27 - Wed, Oct 28

5:25 pm - 11:56 pmYYZ Toronto Pearson Intl-MCI Kansas City

7h 31m1 stop Atlanta Hartsfield-Jackson

10:20 am - 7:07 pmMCI Kansas City-YYZ Toronto Pearson Intl

7h 47m1 stop Detroit Metropolitan Wayne County

$505Delta

Tue, Dec 22 - Tue, Jan 5

6:33 pm - 11:56 pmYYZ Toronto Pearson Intl-MCI Kansas City

6h 23m1 stop Atlanta Hartsfield-Jackson

3:54 pm - 11:57 pmMCI Kansas City-YYZ Toronto Pearson Intl

7h 03m1 stop Atlanta Hartsfield-Jackson

$505Delta

Wed, Nov 4 - Wed, Nov 11

6:15 am - 12:15 pmYYZ Toronto Pearson Intl-MCI Kansas City

7h 00m1 stop Atlanta Hartsfield-Jackson

3:54 pm - 11:57 pmMCI Kansas City-YYZ Toronto Pearson Intl

7h 03m1 stop Atlanta Hartsfield-Jackson

$519WestJet

Tue, Nov 10 - Tue, Nov 10

9:44 am - 6:05 pmYYZ Toronto Pearson Intl-SGF Springfield-Branson

9h 21m2 stops Newark Chicago O'Hare Intl

11:11 am - 9:24 pmSGF Springfield-Branson-YYZ Toronto Pearson Intl

9h 13m2 stops Chicago O'Hare Intl Newark

$550United Airlines

Wed, Nov 11 - Tue, Nov 17

8:35 am - 2:38 pmYYZ Toronto Pearson Intl-SGF Springfield-Branson

7h 03m1 stop Chicago O'Hare Intl

7:30 am - 5:49 pmSGF Springfield-Branson-YYZ Toronto Pearson Intl

9h 19m2 stops Chicago O'Hare Intl Newark

$564United Airlines

Sun, Dec 13 - Tue, Dec 15

6:00 am - 9:47 amYYZ Toronto Pearson Intl-MCI Kansas City

4h 47m1 stop Detroit Metropolitan Wayne County

2:39 pm - 11:59 pmMCI Kansas City-YYZ Toronto Pearson Intl

8h 20m1 stop Atlanta Hartsfield-Jackson

$566WestJet

Sun, Oct 11 - Mon, Oct 12

Cheap last minute flights

Enter your travel dates to find the best prices.

9:30 am - 8:46 amYYZ Toronto Pearson Intl-MCI Kansas City

24h 16m1 stop Fort Lauderdale

8:43 pm - 7:20 pmMCI Kansas City-YYZ Toronto Pearson Intl

45h 37m2 stops Denver Intl Tampa

$576Multiple Airlines

Thu, Oct 1 - Sun, Nov 1

6:15 am - 11:27 amYYZ Toronto Pearson Intl-MCI Kansas City

6h 12m1 stop Minneapolis St Paul

6:34 am - 1:36 pmMCI Kansas City-YYZ Toronto Pearson Intl

6h 02m1 stop Detroit Metropolitan Wayne County

$620Delta

Thu, Oct 1 - Thu, Oct 15

6:15 am - 11:14 amYYZ Toronto Pearson Intl-MCI Kansas City

5h 59m1 stop Atlanta Hartsfield-Jackson

5:31 pm - 11:59 pmMCI Kansas City-YYZ Toronto Pearson Intl

5h 28m1 stop Atlanta Hartsfield-Jackson

$637Delta

Thu, Oct 1 - Sun, Nov 1

9:30 am - 8:46 amYYZ Toronto Pearson Intl-MCI Kansas City

24h 16m1 stop Fort Lauderdale

9:16 am - 4:55 pmMCI Kansas City-YYZ Toronto Pearson Intl

30h 39m1 stop Fort Lauderdale

$648Multiple Airlines

Thu, Oct 1 - Mon, Oct 5

5:27 pm - 9:54 pmYYZ Toronto Pearson Intl-MCI Kansas City

5h 27m1 stop Washington, D.C. Reagan-National

9:11 am - 6:42 pmMCI Kansas City-YYZ Toronto Pearson Intl

8h 31m1 stop Charlotte Douglas

$731American Airlines

Fri, Oct 2 - Sun, Oct 4

8:00 pm - 10:39 amYYZ Toronto Pearson Intl-COU Columbia Regional

15h 39m2 stops Newark Chicago O'Hare Intl

6:15 am - 11:54 pmCOU Columbia Regional-YYZ Toronto Pearson Intl

16h 39m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

$734United Airlines

Wed, Sep 30 - Sat, Oct 10

7:00 am - 10:39 amYYZ Toronto Pearson Intl-COU Columbia Regional

4h 39m1 stop Chicago O'Hare Intl

6:15 am - 1:42 pmCOU Columbia Regional-YYZ Toronto Pearson Intl

6h 27m1 stop Chicago O'Hare Intl

$734United Airlines

Wed, Sep 30 - Sat, Oct 10

2:18 pm - 9:54 pmYYZ Toronto Pearson Intl-MCI Kansas City

8h 36m1 stop Washington, D.C. Reagan-National

7:16 am - 2:33 pmMCI Kansas City-YYZ Toronto Pearson Intl

6h 17m1 stop Chicago O'Hare Intl

$744American Airlines

Thu, Oct 1 - Thu, Oct 8

8:02 am - 3:43 pmYYZ Toronto Pearson Intl-STL Lambert-St Louis

8h 41m1 stop New York LaGuardia

1:08 pm - 11:46 pmSTL Lambert-St Louis-YYZ Toronto Pearson Intl

9h 38m1 stop New York LaGuardia

$881WestJet

Tue, Sep 29 - Wed, Sep 30

11:00 pm - 4:25 pmYYZ Toronto Pearson Intl-MCI Kansas City

18h 25m2 stops Montreal Pierre Elliott Trudeau Intl Atlanta Hartsfield-Jackson

5:45 pm - 7:15 pmMCI Kansas City-YYZ Toronto Pearson Intl

24h 30m2 stops Detroit Metropolitan Wayne County Montreal Pierre Elliott Trudeau Intl

$980WestJet

Fri, Oct 2 - Sun, Oct 4

Cheap direct flights

Enter your travel dates to find the best prices.

2:10 pm - 3:23 pmYYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 13mnonstop

4:05 pm - 6:59 pmSTL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mnonstop

$617Air Canada

Fri, Oct 30 - Mon, Nov 2

2:10 pm - 3:26 pmYYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 16mnonstop

4:05 pm - 7:05 pmSTL Lambert-St Louis-YYZ Toronto Pearson Intl

2h 00mnonstop

$617Air Canada

Wed, Nov 11 - Wed, Nov 18

2:10 pm - 3:26 pmYYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 16mnonstop

4:05 pm - 7:05 pmSTL Lambert-St Louis-YYZ Toronto Pearson Intl

2h 00mnonstop

$617Air Canada

Thu, Dec 3 - Mon, Dec 7

2:10 pm - 3:26 pmYYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 16mnonstop

4:05 pm - 7:05 pmSTL Lambert-St Louis-YYZ Toronto Pearson Intl

2h 00mnonstop

$617Air Canada

Fri, Dec 4 - Mon, Dec 7

2:10 pm - 3:26 pmYYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 16mnonstop

4:05 pm - 7:05 pmSTL Lambert-St Louis-YYZ Toronto Pearson Intl

2h 00mnonstop

$617Air Canada

Tue, Nov 24 - Tue, Dec 1

7:15 pm - 8:20 pmYYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mnonstop

4:05 pm - 6:59 pmSTL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mnonstop

$617Air Canada

Tue, Oct 20 - Sat, Oct 31

12:55 pm - 2:00 pmYYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mnonstop

4:05 pm - 6:59 pmSTL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mnonstop

$617Air Canada

Thu, Oct 22 - Mon, Oct 26

12:55 pm - 2:00 pmYYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mnonstop

4:05 pm - 6:59 pmSTL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mnonstop

$617Air Canada

Fri, Oct 23 - Fri, Oct 30

12:55 pm - 2:00 pmYYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mnonstop

4:05 pm - 6:59 pmSTL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mnonstop

$802United Airlines

Sat, Oct 24 - Sat, Oct 31

12:55 pm - 2:00 pmYYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mnonstop

4:05 pm - 6:59 pmSTL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mnonstop

$807United Airlines

Wed, Oct 21 - Wed, Oct 28

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American Airlines flights from Region of Ontario to Missouri

Our best American Airlines deals on Region of Ontario to Missouri flight tickets

American Airlines

Oct 20

YYZ11:09 amToronto Pearson Intl

10h 23m

1 stop

STL8:32 pmLambert-St Louis

Oct 27

STL7:03 amLambert-St Louis

8h 44m

1 stop

YYZ4:47 pmToronto Pearson Intl

$458

American Airlines

Oct 20

YYZ11:09 amToronto Pearson Intl

10h 23m

1 stop

STL8:32 pmLambert-St Louis

Oct 31

STL7:03 amLambert-St Louis

8h 44m

1 stop

YYZ4:47 pmToronto Pearson Intl

$460

American Airlines

Oct 20

YYZ11:09 amToronto Pearson Intl

10h 23m

1 stop

STL8:32 pmLambert-St Louis

Oct 27

STL7:03 amLambert-St Louis

8h 44m

1 stop

YYZ4:47 pmToronto Pearson Intl

$461

Air Canada flights from Region of Ontario to Missouri

Our best Air Canada deals on Region of Ontario to Missouri flight tickets

Air Canada

Oct 16

YOW2:50 pmOttawa

4h 51m

1 stop

STL6:41 pmLambert-St Louis

Oct 26

STL4:05 pmLambert-St Louis

6h 50m

1 stop

YOW11:55 pmOttawa

$616

Air Canada

Oct 16

YOW2:50 pmOttawa

4h 51m

1 stop

STL6:41 pmLambert-St Louis

Oct 26

STL4:05 pmLambert-St Louis

6h 50m

1 stop

YOW11:55 pmOttawa

$618

Air Canada

Oct 16

YOW2:50 pmOttawa

4h 51m

1 stop

STL6:41 pmLambert-St Louis

Oct 26

STL4:05 pmLambert-St Louis

6h 50m

1 stop

YOW11:55 pmOttawa

$619

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoKansas City

YYZ Toronto Pearson Intl - MCI Kansas City

YYZMCI

Toronto Pearson Intl

Mon 11/9

9:15 am-7:47 pm

2 stops35h 32m

Kansas City

Mon 11/16

9:46 am-10:55 pm

1 stop12h 09m

$386

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Wed 10/28

7:15 am-5:40 pm

2 stops11h 25m

Lambert-St Louis

Wed 11/4

6:44 pm-3:20 pm

2 stops19h 36m

$388

TorontoKansas City

YYZ Toronto Pearson Intl - MCI Kansas City

YYZMCI

Toronto Pearson Intl

Mon 11/9

12:44 pm-10:05 pm

1 stop10h 21m

Kansas City

Mon 11/16

6:00 am-4:34 pm

1 stop9h 34m

$460

TorontoKansas City

YYZ Toronto Pearson Intl - MCI Kansas City

YYZMCI

Toronto Pearson Intl

Tue 10/27

11:09 am-9:46 pm

1 stop11h 37m

Kansas City

Wed 10/28

6:00 am-4:47 pm

1 stop9h 47m

$461

TorontoKansas City

YYZ Toronto Pearson Intl - MCI Kansas City

YYZMCI

Toronto Pearson Intl

Tue 12/22

5:25 pm-11:56 pm

1 stop7h 31m

Kansas City

Tue 1/5

10:20 am-7:07 pm

1 stop7h 47m

$505

TorontoKansas City

YYZ Toronto Pearson Intl - MCI Kansas City

YYZMCI

Toronto Pearson Intl

Wed 11/4

6:33 pm-11:56 pm

1 stop6h 23m

Kansas City

Wed 11/11

3:54 pm-11:57 pm

1 stop7h 03m

$505

TorontoKansas City

YYZ Toronto Pearson Intl - MCI Kansas City

YYZMCI

Toronto Pearson Intl

Tue 11/10

6:15 am-12:15 pm

1 stop7h 00m

Kansas City

Tue 11/10

3:54 pm-11:57 pm

1 stop7h 03m

$519

TorontoSpringfield

YYZ Toronto Pearson Intl - SGF Springfield-Branson

YYZSGF

Toronto Pearson Intl

Wed 11/11

9:44 am-6:05 pm

2 stops9h 21m

Springfield-Branson

Tue 11/17

11:11 am-9:24 pm

2 stops9h 13m

$550

TorontoSpringfield

YYZ Toronto Pearson Intl - SGF Springfield-Branson

YYZSGF

Toronto Pearson Intl

Sun 12/13

8:35 am-2:38 pm

1 stop7h 03m

Springfield-Branson

Tue 12/15

7:30 am-5:49 pm

2 stops9h 19m

$564

Quickest round-trip

TorontoKansas City

YYZ Toronto Pearson Intl - MCI Kansas City

YYZMCI

Toronto Pearson Intl

Sun 10/11

6:00 am-9:47 am

1 stop4h 47m

Kansas City

Mon 10/12

2:39 pm-11:59 pm

1 stop8h 20m

$566

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Region of Ontario to Missouri

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Missouri?

In general, January is the cheapest month to fly from Region of Ontario to Missouri. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $422. If you aren’t able to travel to Missouri during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $443.

What is the cheapest day to depart on your flight to Missouri?

The cheapest day to depart from Region of Ontario to Missouri is on a Sunday when prices can be found for as low as $394. Flights from Region of Ontario to Missouri on a Saturday will generally be more expensive and average around $596. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Missouri?

According to our data, the cheapest time of day to fly to Missouri is at noon. momondo users have found flights departing from Region of Ontario to Missouri at noon for as low as $440. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Missouri are more costly in the morning, with an average ticket price of $513. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Ontario to Missouri flight route?

Fly from Toronto Pearson Intl to Lambert-St Louis for the best Ontario - Missouri flight prices

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

You are more likely to see cheaper flights to Missouri from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Missouri for around $522 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Missouri from Region of Ontario for as low as $359 on momondo.

What cabin class options are available on Region of Ontario to Missouri flights?

There are 3 cabin classes available to choose from on Region of Ontario to Missouri flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Region of Ontario to Missouri flights?

No. A direct flight is the cheapest option for a flight between Region of Ontario to Missouri.

Cheap Region of Ontario to Missouri flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Missouri

Best Price Found	$160
Fastest flight time	2h 05m
Direct flights	Every day
Airports in Missouri	55 airports

The best one-way flight to Missouri from Region of Ontario in the past 72 hours is $160. The best round-trip flight deal from Region of Ontario to Missouri found on momondo in the last 72 hours is $386.

The fastest flight from Region of Ontario to Missouri takes 2h 05m

Direct flights go from Region of Ontario to Missouri every day.

There are 55 airports in Missouri. From Region of Ontario there are direct flights to Lambert-St Louis (STL).

Search flight deals

Frequently asked questions about flying from Ontario to Missouri

When did momondo last update prices for flights from Ontario to Missouri?
Prices for flights from Ontario to Missouri were last updated today.
How many operators does momondo search for flights from Ontario to Missouri?
The number of operators available for flights from Ontario to Missouri is 5 as of September 2026.
How old do you have to be to fly from Ontario to Missouri?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Missouri.
What documentation or ID do you need to fly to Missouri?
The required travel and health documents for your Missouri trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Missouri. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Region of Ontario to Missouri?
momondo data reveals that the most frequently booked plane model on the route from Region of Ontario to Missouri is Canadair (Bombardier) Regional Jet 900, representing 58.25% of all bookings. The subsequent popular models are Embraer 175 at 38.83%, Airbus A220-300 at 1.94%, and Airbus A220 at 0.97%.

Best airlines flying from Region of Ontario to Missouri

Compare and see reviews for airlines that fly from Region of Ontario to Missouri with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $226	Free Cancellation	Rating 7.4 10,246 reviews	Search United Airlines flights
Air Canada	PriceFrom $231	Free Cancellation	Rating 7.1 11,701 reviews	Search Air Canada flights
Delta	PriceFrom $438	Free Cancellation	Rating 7.8 8,606 reviews	Search Delta flights
American Airlines	PriceFrom $450	Free Cancellation	Rating 7.0 12,097 reviews	Search American Airlines flights
WestJet	PriceFrom $530	Free Cancellation	Rating 7.2 3,449 reviews	Search WestJet flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Missouri?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Missouri. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to Missouri with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Missouri from Ontario with this policy.

How can momondo help me find flights from Ontario to Missouri?

momondo helps you find the best flight between Ontario and Missouri by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ontario to Missouri right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Missouri, momondo offers a useful price alert feature which will track prices for flights to Missouri from Ontario and alert you when they change.

An easier way to manage your Missouri trip

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Popular cities in Missouri

Flights to New Yorkfrom $56

Flights to Los Angelesfrom $53

Flights to Orlandofrom $49

Flights to Miamifrom $77

Flights to San Franciscofrom $43

Flights to Chicagofrom $63

Flights to Las Vegasfrom $44

Flights to Washington, D.C.from $45

Flights to Fort Lauderdalefrom $60

Flights to Bostonfrom $103

Flights to Atlantafrom $38

Flights to Dallasfrom $76

Cheap flights from Ontario to Missouri from $160

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Missouri departing on 11/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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American Airlines flights from Region of Ontario to Missouri

Our best American Airlines deals on Region of Ontario to Missouri flight tickets

Air Canada flights from Region of Ontario to Missouri

Our best Air Canada deals on Region of Ontario to Missouri flight tickets

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

See travel insights to Missouri from

How to get the cheapest flight ticket from Region of Ontario to Missouri

What is the cheapest month to fly to Missouri?

What is the cheapest day to depart on your flight to Missouri?

What is the cheapest time of day to depart on your flight to Missouri?

What is the cheapest Ontario to Missouri flight route?

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

What cabin class options are available on Region of Ontario to Missouri flights?

Can stopping save me money on Region of Ontario to Missouri flights?

What is the cheapest airline that flies from Ontario to Missouri?

What airlines fly to Missouri?

How many flights depart from Region of Ontario to Missouri on average per day?

How many flights depart from Region of Ontario to Missouri on average per week?

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

Cheap Region of Ontario to Missouri flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Missouri

Frequently asked questions about flying from Ontario to Missouri

Best airlines flying from Region of Ontario to Missouri

Compare and see reviews for airlines that fly from Region of Ontario to Missouri with momondo

Why use momondo?

An easier way to manage your Missouri trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Missouri

Popular cities in Missouri

Popular flights according to clicks in the last 7 days on momondo

Region of Ontario flight routes

According to popular flight searches on momondo this year

Missouri flight routes

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