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

The cheapest airlines for a one-way flight from Missouri to Region of Ontario are United Airlines (C$ 235), Delta (C$ 238), and American Airlines (C$ 310).

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

To save on the cost of your flight from Missouri to Region of Ontario, book at least 30 days before your planned departure. Booking around this time can save you about 267% on the cost of this flight compared to booking a flight leaving this week. We have found prices from C$ 936 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as C$ 1,207.

What is the cheapest month to fly from Missouri to Region of Ontario?

August can be a great time to fly to Region of Ontario from Missouri with a flight ticket averaging about C$ 873. Cheapflights users have found deals in the month of August for as cheap as C$ 316. The most expensive prices can be found in the month of January.

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.

C$ 228+ Flights from Missouri to Ontario

Cheap flight deals from Missouri to Ontario

Round-trip from	C$ 469
One-way from	C$ 228
Popular in	January
Cheapest in	August
Average price	C$ 968
Good round-trip deal	C$ 235 or less
Good one-way deal	C$ 461 or less

20/6-22/6
2 total stops
54h 40m total
Missouri to Ontario

Search Deals

24/5
1 total stop
11h 15m total
Missouri to Ontario

Search Deals

Highest demand for flights based on searches. 8% potential increase in price (C$ 110 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 30 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

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

Search Deals

Price to beat on a one-way flight from Missouri to Ontario.

Search Deals

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 30 April 2025.

Fri 16/511:43 a.m.MCI - YYZ

1 stop8h 25mMultiple Airlines

Mon 19/54:00 p.m.YYZ - MCI

1 stop7h 41mMultiple Airlines

Deal found 28/4C$ 444

Fri 20/611:28 a.m.STL - YYZ

1 stop25h 37mMultiple Airlines

Sun 22/66:30 a.m.YYZ - STL

1 stop29h 03mMultiple Airlines

Deal found 28/4C$ 469

Thu 29/55:46 a.m.MCI - YUL

1 stop7h 34mMultiple Airlines

Thu 5/66:45 a.m.YUL - MCI

2 stops14h 27mMultiple Airlines

Deal found 29/4C$ 550

Sun 1/66:37 a.m.MCI - YUL

1 stop8h 38mDelta

Wed 4/611:00 a.m.YUL - MCI

1 stop6h 27mDelta

Deal found 29/4C$ 616

Thu 12/66:12 p.m.STL - YUL

3 stops29h 25mMultiple Airlines

Sun 15/66:55 a.m.YUL - STL

3 stops28h 38mMultiple Airlines

Deal found 29/4C$ 627

Fri 13/67:30 a.m.STL - YYZ

Nonstop1h 55mAir Canada

Fri 20/611:30 a.m.YYZ - STL

Nonstop2h 06mAir Canada

Deal found 29/4C$ 641

Tue 27/56:00 a.m.STL - YYZ

1 stop9h 10mDelta

Thu 29/56:15 a.m.YYZ - STL

1 stop9h 53mDelta

Deal found 29/4C$ 663

Wed 28/55:12 a.m.STL - YYZ

1 stop10h 32mAmerican Airlines

Fri 30/51:15 p.m.YYZ - STL

1 stop11h 36mAmerican Airlines

Deal found 29/4C$ 677

Thu 29/56:45 p.m.STL - YUL

1 stop25h 24mDelta

Mon 2/66:05 a.m.YUL - STL

1 stop15h 43mDelta

Deal found 29/4C$ 682

Thu 12/65:10 p.m.MCI - YUL

1 stop21h 57mWestJet

Sat 21/66:00 a.m.YUL - MCI

1 stop13h 10mWestJet

Deal found 29/4C$ 709

Fri 1/85:15 p.m.MCI - YYZ

1 stop26h 38mWestJet

Sun 3/88:00 p.m.YYZ - MCI

2 stops15h 59mWestJet

Deal found 27/4C$ 723

Wed 11/68:33 a.m.SGF - YYZ

1 stop13h 11mMultiple Airlines

Fri 27/61:30 p.m.YYZ - SGF

2 stops32h 28mMultiple Airlines

Deal found 29/4C$ 735

Best flights from Missouri to Ontario
Discover carefully curated flight deals from Missouri to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 30 April 2025.

Fri 20/611:28 a.m.STL - YYZ

1 stop25h 37mMultiple Airlines

Sun 22/66:30 a.m.YYZ - STL

1 stop29h 03mMultiple Airlines

Deal found 28/4C$ 469

Mon 12/56:00 a.m.MCI - YUL

1 stop16h 26mAir Canada

Sun 18/54:05 p.m.YUL - MCI

1 stop8h 39mAir Canada

Deal found 28/4C$ 505

Mon 9/65:07 p.m.MCI - YUL

1 stop17h 23mAmerican Airlines

Tue 10/62:35 p.m.YUL - MCI

1 stop10h 15mAmerican Airlines

Deal found 28/4C$ 509

Thu 5/65:26 p.m.MCI - YUL

1 stop5h 28mDelta

Fri 13/67:00 a.m.YUL - MCI

1 stop6h 08mDelta

Deal found 28/4C$ 556

Tue 3/63:21 p.m.MCI - YUL

2 stops19h 19mUnited Airlines

Sun 8/66:15 a.m.YUL - MCI

1 stop5h 21mUnited Airlines

Deal found 28/4C$ 569

Sun 8/66:30 a.m.MCI - YUL

1 stop8h 55mWestJet

Sun 8/66:45 p.m.YUL - MCI

1 stop18h 23mWestJet

Deal found 28/4C$ 615

Tue 10/67:01 p.m.MCI - YYZ

1 stop18h 59mAlaska Airlines

Tue 17/64:45 p.m.YYZ - MCI

1 stop31h 50mAlaska Airlines

Deal found 29/4C$ 915

Wed 4/66:45 p.m.MCI - YYZ

2 stops16h 45mMultiple Airlines

Thu 5/64:00 p.m.YYZ - MCI

1 stop7h 41mMultiple Airlines

Deal found 29/4C$ 490

Sat 24/57:15 a.m.SGF - YYZ

1 stop9h 20mWestJet Encore

Sat 7/611:40 a.m.YYZ - SGF

2 stops9h 20mWestJet Encore

Deal found 29/4C$ 1,034

Thu 5/65:46 a.m.MCI - YUL

1 stop7h 34mMultiple Airlines

Mon 9/66:45 a.m.YUL - MCI

2 stops16h 56mMultiple Airlines

Deal found 28/4C$ 558

Fri 13/67:30 a.m.STL - YYZ

Nonstop1h 55mAir Canada

Fri 20/611:30 a.m.YYZ - STL

Nonstop2h 06mAir Canada

Deal found 29/4C$ 641

Tue 27/56:00 a.m.STL - YYZ

1 stop9h 10mDelta

Thu 29/56:15 a.m.YYZ - STL

1 stop9h 53mDelta

Deal found 29/4C$ 663

Direct flights from Missouri to Ontario
Explore direct flight options from Missouri to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 April 2025.

Fri 13/67:30 a.m.STL - YYZ

Nonstop1h 55mAir Canada

Fri 20/611:30 a.m.YYZ - STL

Nonstop2h 06mAir Canada

Deal found 29/4C$ 641

Sun 24/84:00 p.m.STL - YYZ

Nonstop2h 00mUnited Airlines

Mon 15/96:30 p.m.YYZ - STL

Nonstop2h 03mUnited Airlines

Deal found 29/4C$ 738

Thu 29/51:30 p.m.STL - YUL

Nonstop2h 30mAir Canada

Mon 2/66:10 p.m.YUL - STL

Nonstop2h 48mAir Canada

Deal found 29/4C$ 843

Thu 29/51:30 p.m.STL - YUL

Nonstop2h 30mUnited Airlines

Thu 5/66:10 p.m.YUL - STL

Nonstop2h 48mUnited Airlines

Deal found 30/4C$ 897

Fri 16/57:30 a.m.STL - YYZ

Nonstop1h 55mMultiple Airlines

Sun 18/511:30 a.m.YYZ - STL

Nonstop2h 06mMultiple Airlines

Deal found 28/4C$ 1,109

Wed 11/61:30 p.m.STL - YUL

Nonstop2h 30mMultiple Airlines

Mon 16/66:10 p.m.YUL - STL

Nonstop2h 48mMultiple Airlines

Deal found 29/4C$ 2,318

Last-minute flights from Missouri to Ontario
Discover last-minute flight deals from Missouri to Ontario. Data last updated 30 April 2025 and is based on user searches.

Mon 5/54:23 p.m.MCI - YUL

1 stop6h 36mWestJet

Wed 7/56:05 a.m.YUL - MCI

1 stop11h 22mWestJet

Deal found 28/4C$ 680

Mon 5/55:20 p.m.MCI - YUL

2 stops12h 50mAir Canada

Wed 7/51:15 p.m.YUL - MCI

1 stop9h 32mAir Canada

Deal found 28/4C$ 699

Mon 5/52:04 p.m.MCI - YUL

2 stops25h 56mMultiple Airlines

Wed 7/510:45 a.m.YUL - MCI

3 stops12h 56mMultiple Airlines

Deal found 28/4C$ 825

Mon 5/56:00 p.m.STL - YUL

1 stop14h 50mAmerican Airlines

Wed 7/510:44 a.m.YUL - STL

1 stop9h 31mAmerican Airlines

Deal found 28/4C$ 1,019

Mon 5/59:40 a.m.STL - YUL

2 stops11h 10mUnited Airlines

Wed 7/54:40 p.m.YUL - STL

2 stops24h 07mUnited Airlines

Deal found 28/4C$ 1,143

Tue 6/55:45 p.m.STL - YYZ

1 stop29h 02mMultiple Airlines

Thu 8/59:50 a.m.YYZ - STL

1 stop15h 16mMultiple Airlines

Deal found 29/4C$ 687

Tue 6/55:32 p.m.STL - YYZ

2 stops24h 24mWestJet

Thu 8/56:15 a.m.YYZ - STL

1 stop6h 33mWestJet

Deal found 29/4C$ 875

Tue 6/56:05 p.m.MCI - YOW

2 stops11h 40mMultiple Airlines

Sat 10/54:25 p.m.YOW - MCI

1 stop22h 25mMultiple Airlines

Deal found 28/4C$ 1,077

Tue 6/56:15 a.m.MCI - YYZ

1 stop4h 10mWestJet

Sun 11/55:50 p.m.YYZ - MCI

1 stop7h 30mWestJet

Deal found 29/4C$ 1,091

Fri 9/55:55 p.m.STL - YUL

1 stop19h 25mMultiple Airlines

Sun 11/56:45 a.m.YUL - STL

2 stops18h 21mMultiple Airlines

Deal found 29/4C$ 775

Fri 9/57:32 a.m.STL - YYZ

1 stop10h 03mAmerican Airlines

Sun 11/510:35 a.m.YYZ - STL

1 stop9h 40mAmerican Airlines

Deal found 29/4C$ 1,031

Fri 9/57:30 a.m.STL - YYZ

Nonstop1h 55mUnited Airlines

Sun 11/511:30 a.m.YYZ - STL

Nonstop2h 06mUnited Airlines

Deal found 29/4C$ 1,229

One-way flights from Missouri to Ontario
Search for one-way flight options from Missouri to Ontario. Find affordable one-way fares based on user searches. Data last updated 30 April 2025.

Sat 24/510:10 a.m.STL - YYZ

1 stop11h 15mMultiple Airlines

Deal found 29/4C$ 228

Fri 16/53:10 p.m.MCI - YUL

2 stops15h 38mUnited Airlines

Deal found 28/4C$ 235

Fri 16/57:00 a.m.MCI - YUL

1 stop9h 40mDelta

Deal found 28/4C$ 238

Fri 5/95:45 a.m.MCI - YYZ

2 stops17h 37mMultiple Airlines

Deal found 28/4C$ 249

Tue 10/66:00 a.m.STL - YYZ

1 stop13h 44mDelta

Deal found 29/4C$ 293

Thu 3/71:21 p.m.STL - YYZ

1 stop9h 07mAmerican Airlines

Deal found 29/4C$ 310

Thu 4/97:37 p.m.STL - YUL

1 stop18h 13mMultiple Airlines

Deal found 29/4C$ 314

Wed 3/912:00 p.m.MCI - YYZ

1 stop9h 52mDelta

Deal found 28/4C$ 320

Thu 3/79:15 a.m.STL - YYZ

Nonstop1h 58mAir Canada

Deal found 29/4C$ 335

Wed 27/88:10 a.m.STL - YYZ

2 stops12h 33mUnited Airlines

Deal found 29/4C$ 346

Sat 13/99:00 a.m.STL - YUL

2 stops11h 26mDelta

Deal found 29/4C$ 353

Wed 3/97:30 a.m.MCI - YYZ

2 stops13h 22mUnited Airlines

Deal found 28/4C$ 386

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 20/6

11:28 a.m.-2:05 p.m.

1 stop25h 37m

Toronto Pearson Intl

Sun 22/6

6:30 a.m.-10:33 a.m.

1 stop29h 03m

C$ 469

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Wed 4/6

6:45 p.m.-12:30 p.m.

2 stops16h 45m

Toronto Pearson Intl

Thu 5/6

4:00 p.m.-10:41 p.m.

1 stop7h 41m

C$ 490

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Mon 12/5

6:00 a.m.-11:26 p.m.

1 stop16h 26m

Montreal Pierre Elliott Trudeau Intl

Sun 18/5

4:05 p.m.-11:44 p.m.

1 stop8h 39m

C$ 505

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Mon 9/6

5:07 p.m.-11:30 a.m.

1 stop17h 23m

Montreal Pierre Elliott Trudeau Intl

Tue 10/6

2:35 p.m.-11:50 p.m.

1 stop10h 15m

C$ 509

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Thu 5/6

2:05 p.m.-11:16 p.m.

1 stop8h 11m

Montreal Pierre Elliott Trudeau Intl

Wed 11/6

6:00 a.m.-9:44 a.m.

1 stop4h 44m

C$ 556

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Thu 5/6

5:46 a.m.-2:20 p.m.

1 stop7h 34m

Montreal Pierre Elliott Trudeau Intl

Wed 11/6

6:45 a.m.-10:41 p.m.

2 stops16h 56m

C$ 558

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Tue 3/6

3:21 p.m.-11:40 a.m.

2 stops19h 19m

Montreal Pierre Elliott Trudeau Intl

Sun 8/6

6:15 a.m.-10:36 a.m.

1 stop5h 21m

C$ 569

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Sun 8/6

6:30 a.m.-4:25 p.m.

1 stop8h 55m

Montreal Pierre Elliott Trudeau Intl

Sun 8/6

6:45 p.m.-12:08 p.m.

1 stop18h 23m

C$ 615

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Thu 12/6

6:12 p.m.-12:37 a.m.

3 stops29h 25m

Montreal Pierre Elliott Trudeau Intl

Sun 15/6

6:55 a.m.-10:33 a.m.

3 stops28h 38m

C$ 627

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 13/6

7:30 a.m.-10:25 a.m.

Nonstop1h 55m

Toronto Pearson Intl

Fri 20/6

11:30 a.m.-12:36 p.m.

Nonstop2h 06m

C$ 641

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/4

Showing 1-10 of 49 results

...

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.

Cheapflights Insights

Everything you need to know about your flight from Missouri to Ontario

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 C$ 167). Flying from Missouri to Region of Ontario in July is currently the most expensive (average of C$ 258). 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?

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

Rainfall in Ontario by month

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

Temperature in Ontario 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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

Reviews of airlines servicing Ontario

See what other customers who have flown with Alaska Airlines, Delta and United Airlines from Missouri to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,961 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

9,961 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,936 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,696 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

WestJet

7.2

Good

2,823 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

What are the cheapest airlines to fly from Missouri to Region of Ontario one-way?
The cheapest airlines for a one-way flight from Missouri to Region of Ontario are United Airlines (C$ 235), Delta (C$ 238), and American Airlines (C$ 310).
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 C$ 167). Flying from Missouri to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 for Missouri to Ontario

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Complete your trip

Region of Ontario car rentals

Toronto Pearson Intl Airport car rentals

Ottawa Airport car rentals

Toronto Island Airport car rentals

Hamilton Airport car rentals

Toronto Region of Waterloo Intl Airport car rentals

London Airport car rentals

Thunder Bay Airport car rentals

Sault Ste Marie Airport car rentals

Timmins Airport car rentals

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North Bay Airport car rentals

Direct flights to Canada

Find a return flight route from Ontario

Pearson Intl to St. Louis flights

Pearson Intl to Kansas City flights

Pierre Elliott Trudeau Intl to St. Louis flights

Pearson Intl to Springfield flights

Pierre Elliott Trudeau Intl to Kansas City flights

Ottawa to Kansas City flights

Ottawa to St. Louis flights

Pearson Intl to Quincy flights

Pierre Elliott Trudeau Intl to Cape Girardeau flights

Pearson Intl to Columbia flights

Top airline flying from Missouri to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 213	AverageC$ 796	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights

Fly with Cheapflights

How does Cheapflights help users find flights from Missouri to Ontario?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Missouri to Ontario. 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 Missouri to Ontario?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from Missouri.

Can Cheapflights find flights from Missouri to Ontario with no change fees?

Certainly. Search results for flights to Ontario from Missouri shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Missouri to Ontario become cheaper?

Yes! Start tracking prices for Missouri to Ontario flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from Missouri to Ontario from C$ 228

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 24/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Missouri to Ontario

Keep the following information in mind while searching for Missouri to Ontario flight deals. Data was last updated 30 April 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Missouri to Ontario

Cheapest flights from Missouri to OntarioExplore 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 30 April 2025.

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 30 April 2025.

Cheapflights Fare Finder

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

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.

Cheapflights Insights

Everything you need to know about your flight from Missouri to Ontario

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

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 30 April 2025.

Rainfall in Ontario by month

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

Temperature in Ontario by month

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

Reviews of airlines servicing Ontario

See what other customers who have flown with Alaska Airlines, Delta and United Airlines from Missouri to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

Can I find deals for flights from Missouri to Ontario that include hotel bookings?

How can I find direct flights from Missouri to Ontario?

Can I find deals for business class flights from Missouri to Ontario?

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

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Alternative routes for Missouri to Ontario

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Top airline flying from Missouri to Ontario

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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 30 April 2025.