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

Airlines like Air Canada, United Airlines, and American Airlines fly from Region of Ontario to Missouri in about 6h 28m. The time it takes to get you to your destination can typically vary by up to 1h 16m. The distance between Region of Ontario and Missouri is about 1413 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

The cheapest airlines for a one-way flight from Region of Ontario to Missouri are United Airlines (C$ 246), American Airlines (C$ 430), and Delta (C$ 440).

In terms of precipitation, rainfall in Missouri ranges from 28.0 - 132.0 mm per month. May is typically the wettest month, when rainfall can reach 132.0 mm. January is typically the driest time to visit Missouri when rainfall is around 28.0 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 26.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -2.0 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$ 228+ Cheap Flights from Ontario to Missouri

Cheap flight deals from Ontario to Missouri

Round-trip from	C$ 405
One-way from	C$ 228
Popular in	December
Cheapest in	November
Average price	C$ 849
Good round-trip deal	C$ 592 or less

14/12-11/1
2 total stops
51h 51m total
Ontario to Missouri

Search Deals

7/12
1 total stop
13h 59m total
Ontario to Missouri

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (C$ 54 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 21 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

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

Search Deals

Find flight deals from Ontario to Missouri

Enter your travel dates to find the best prices.

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 31 October 2025.

Fri 12/126:20 a.m.YOW - MCI

1 stop5h 19mUnited Airlines

Tue 16/126:00 a.m.MCI - YOW

2 stops14h 56mUnited Airlines

Deal found 29/10C$ 420

Sat 20/123:10 p.m.YOW - STL

1 stop9h 23mMultiple Airlines

Mon 5/14:05 p.m.STL - YOW

1 stop6h 03mMultiple Airlines

Deal found 29/10C$ 429

Fri 21/117:00 a.m.YYZ - MCI

1 stop12h 36mMultiple Airlines

Fri 12/123:47 p.m.MCI - YYZ

1 stop18h 56mMultiple Airlines

Deal found 29/10C$ 433

Fri 21/117:00 a.m.YYZ - MCI

1 stop12h 36mMultiple Airlines

Fri 9/11:44 p.m.MCI - YYZ

1 stop21h 02mMultiple Airlines

Deal found 29/10C$ 443

Fri 5/1212:50 p.m.YYZ - STL

1 stop10h 43mMultiple Airlines

Sun 14/129:54 a.m.STL - YYZ

1 stop24h 49mMultiple Airlines

Deal found 29/10C$ 445

Wed 26/1110:55 a.m.YYZ - MCI

1 stop26h 08mMultiple Airlines

Wed 3/127:31 p.m.MCI - YYZ

1 stop18h 09mMultiple Airlines

Deal found 29/10C$ 482

Sat 20/125:59 p.m.YOW - STL

1 stop6h 34mUnited Airlines

Mon 5/16:35 p.m.STL - YOW

2 stops18h 55mUnited Airlines

Deal found 29/10C$ 494

Fri 26/126:00 a.m.YYZ - COU

1 stop9h 49mAmerican Airlines

Thu 8/16:00 a.m.COU - YYZ

1 stop9h 03mAmerican Airlines

Deal found 29/10C$ 499

Mon 10/114:00 p.m.YYZ - STL

2 stops27h 36mMultiple Airlines

Thu 20/114:13 p.m.STL - YYZ

1 stop6h 58mMultiple Airlines

Deal found 29/10C$ 505

Wed 19/1111:15 a.m.YYZ - STL

1 stop23h 43mMultiple Airlines

Fri 28/113:53 p.m.STL - YYZ

2 stops15h 45mMultiple Airlines

Deal found 29/10C$ 508

Fri 19/122:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sun 4/14:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 30/10C$ 519

Tue 25/116:50 a.m.YYZ - STL

1 stop5h 01mUnited Airlines

Tue 2/126:42 p.m.STL - YYZ

1 stop4h 17mUnited Airlines

Deal found 28/10C$ 538

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 31 October 2025.

Tue 3/29:15 a.m.YOW - STL

1 stop7h 14mAir Canada

Wed 4/24:05 p.m.STL - YOW

1 stop6h 03mAir Canada

Deal found 29/10C$ 413

Tue 7/46:52 a.m.YOW - STL

1 stop6h 28mUnited Airlines

Wed 8/46:30 a.m.STL - YOW

1 stop5h 11mUnited Airlines

Deal found 28/10C$ 420

Wed 21/111:30 a.m.YYZ - STL

1 stop7h 44mAmerican Airlines

Sat 24/16:43 p.m.STL - YYZ

1 stop15h 10mAmerican Airlines

Deal found 29/10C$ 423

Sat 20/123:10 p.m.YOW - STL

1 stop9h 23mMultiple Airlines

Mon 5/14:05 p.m.STL - YOW

1 stop6h 03mMultiple Airlines

Deal found 29/10C$ 429

Tue 25/117:00 a.m.YUL - STL

1 stop10h 07mDelta

Tue 2/125:34 p.m.STL - YUL

1 stop5h 13mDelta

Deal found 28/10C$ 734

Fri 12/126:20 a.m.YOW - MCI

1 stop5h 19mUnited Airlines

Tue 16/126:00 a.m.MCI - YOW

2 stops14h 56mUnited Airlines

Deal found 29/10C$ 420

Fri 21/117:00 a.m.YYZ - MCI

1 stop12h 36mMultiple Airlines

Fri 12/123:47 p.m.MCI - YYZ

1 stop18h 56mMultiple Airlines

Deal found 29/10C$ 433

Tue 24/26:00 a.m.YYZ - STL

1 stop8h 49mAmerican Airlines

Sun 1/37:00 a.m.STL - YYZ

1 stop11h 01mAmerican Airlines

Deal found 29/10C$ 447

Sun 5/46:00 a.m.YOW - MCI

1 stop6h 22mUnited Airlines

Wed 8/46:00 a.m.MCI - YOW

2 stops9h 15mUnited Airlines

Deal found 28/10C$ 420

Tue 7/45:45 a.m.YOW - STL

2 stops10h 36mAir Canada

Wed 8/44:05 p.m.STL - YOW

1 stop5h 59mAir Canada

Deal found 28/10C$ 503

Tue 13/111:30 a.m.YYZ - STL

1 stop7h 46mAmerican Airlines

Fri 16/16:00 a.m.STL - YYZ

1 stop4h 59mAmerican Airlines

Deal found 29/10C$ 469

Wed 26/119:35 a.m.YYZ - MCI

1 stop10h 01mMultiple Airlines

Wed 3/127:31 p.m.MCI - YYZ

1 stop15h 12mMultiple Airlines

Deal found 30/10C$ 486

Tue 24/22:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sun 1/34:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 29/10C$ 519

Fri 21/117:00 a.m.YYZ - MCI

1 stop12h 36mMultiple Airlines

Fri 9/17:00 a.m.MCI - YYZ

3 stops21h 58mMultiple Airlines

Deal found 29/10C$ 494

Sat 20/125:59 p.m.YOW - STL

1 stop6h 34mUnited Airlines

Mon 5/16:35 p.m.STL - YOW

2 stops18h 55mUnited Airlines

Deal found 29/10C$ 494

Fri 26/126:00 a.m.YYZ - COU

1 stop9h 49mAmerican Airlines

Thu 8/16:00 a.m.COU - YYZ

1 stop9h 03mAmerican Airlines

Deal found 29/10C$ 499

Wed 21/15:15 p.m.YYZ - STL

2 stops18h 46mMultiple Airlines

Sat 24/12:48 p.m.STL - YYZ

1 stop7h 32mMultiple Airlines

Deal found 29/10C$ 504

Tue 3/31:12 p.m.YYZ - STL

1 stop9h 59mAmerican Airlines

Wed 4/36:00 a.m.STL - YYZ

1 stop9h 00mAmerican Airlines

Deal found 28/10C$ 515

Wed 4/210:20 a.m.YOW - STL

1 stop6h 09mAir Canada

Thu 5/24:05 p.m.STL - YOW

1 stop6h 03mAir Canada

Deal found 29/10C$ 593

Mon 10/114:00 p.m.YYZ - STL

2 stops27h 36mMultiple Airlines

Thu 20/114:13 p.m.STL - YYZ

1 stop6h 58mMultiple Airlines

Deal found 29/10C$ 505

Thu 4/126:05 a.m.YYZ - SGF

2 stops10h 18mDelta

Sat 6/126:10 a.m.SGF - YYZ

2 stops9h 05mDelta

Deal found 30/10C$ 769

Wed 19/1111:15 a.m.YYZ - STL

1 stop23h 43mMultiple Airlines

Fri 28/113:53 p.m.STL - YYZ

2 stops15h 45mMultiple Airlines

Deal found 29/10C$ 508

Thu 4/129:30 a.m.YYZ - SGF

2 stops13h 43mUnited Airlines

Sat 6/128:00 a.m.SGF - YYZ

1 stop9h 34mUnited Airlines

Deal found 28/10C$ 616

Tue 7/46:00 a.m.YUL - STL

1 stop8h 25mDelta

Wed 8/42:18 p.m.STL - YUL

1 stop7h 54mDelta

Deal found 28/10C$ 774

Fri 5/129:55 p.m.YYZ - STL

2 stops36h 52mMultiple Airlines

Sun 14/122:47 p.m.STL - YYZ

1 stop19h 56mMultiple Airlines

Deal found 29/10C$ 525

Sat 13/127:30 p.m.YOW - MCI

2 stops19h 51mUnited Airlines

Sat 20/125:46 p.m.MCI - YOW

1 stop5h 08mUnited Airlines

Deal found 29/10C$ 647

Wed 26/113:49 p.m.YUL - STL

1 stop17h 20mAmerican Airlines

Wed 3/125:05 a.m.STL - YUL

2 stops16h 35mAmerican Airlines

Deal found 28/10C$ 659

Mon 9/312:45 p.m.YUL - MCI

1 stop9h 23mDelta

Wed 11/38:00 a.m.MCI - YUL

1 stop8h 04mDelta

Deal found 30/10C$ 815

Tue 24/29:35 a.m.YYZ - STL

2 stops15h 21mMultiple Airlines

Sat 28/25:11 p.m.STL - YYZ

1 stop20h 09mMultiple Airlines

Deal found 30/10C$ 525

Thu 19/29:10 a.m.YUL - STL

1 stop7h 19mAir Canada

Fri 20/24:05 p.m.STL - YUL

1 stop6h 18mAir Canada

Deal found 30/10C$ 779

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 31 October 2025.

Fri 19/122:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sun 4/14:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 30/10C$ 519

Tue 3/32:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Wed 4/34:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 30/10C$ 540

Tue 25/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Fri 28/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 30/10C$ 542

Wed 19/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Fri 28/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 29/10C$ 637

Thu 20/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sun 23/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 28/10C$ 760

Tue 25/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Tue 2/124:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 28/10C$ 767

Sun 21/122:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Mon 22/124:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 30/10C$ 888

Mon 23/32:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Thu 26/34:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 30/10C$ 891

Wed 26/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sun 30/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 30/10C$ 1,438

Last-minute flights from Ontario to Missouri
Discover last-minute flight deals from Ontario to Missouri. Data last updated 31 October 2025 and is based on user searches.

Mon 10/114:00 p.m.YYZ - STL

2 stops27h 36mMultiple Airlines

Thu 20/114:13 p.m.STL - YYZ

1 stop6h 58mMultiple Airlines

Deal found 29/10C$ 505

Sun 16/116:10 p.m.YYZ - STL

1 stop6h 34mDelta

Thu 20/116:40 a.m.STL - YYZ

1 stop3h 45mDelta

Deal found 31/10C$ 585

Sun 16/1111:51 a.m.YYZ - STL

1 stop13h 14mAmerican Airlines

Sun 23/118:39 a.m.STL - YYZ

1 stop6h 25mAmerican Airlines

Deal found 29/10C$ 592

Mon 17/117:55 p.m.YYZ - STL

2 stops14h 12mMultiple Airlines

Thu 20/1110:53 a.m.STL - YYZ

1 stop23h 50mMultiple Airlines

Deal found 30/10C$ 549

Mon 17/1112:34 p.m.YYZ - STL

1 stop9h 26mAmerican Airlines

Thu 20/115:00 a.m.STL - YYZ

1 stop9h 57mAmerican Airlines

Deal found 30/10C$ 553

Wed 19/1111:15 a.m.YYZ - STL

1 stop23h 43mMultiple Airlines

Fri 28/113:53 p.m.STL - YYZ

2 stops15h 45mMultiple Airlines

Deal found 29/10C$ 508

Fri 21/117:00 a.m.YYZ - MCI

1 stop12h 36mMultiple Airlines

Fri 12/123:47 p.m.MCI - YYZ

1 stop18h 56mMultiple Airlines

Deal found 29/10C$ 433

Fri 21/117:00 a.m.YYZ - MCI

1 stop12h 36mMultiple Airlines

Fri 9/11:44 p.m.MCI - YYZ

1 stop21h 02mMultiple Airlines

Deal found 29/10C$ 443

Tue 25/116:50 a.m.YYZ - STL

1 stop5h 01mUnited Airlines

Tue 2/126:42 p.m.STL - YYZ

1 stop4h 17mUnited Airlines

Deal found 28/10C$ 538

Tue 25/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Fri 28/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 29/10C$ 540

Tue 25/116:05 a.m.YYZ - STL

1 stop4h 41mDelta

Fri 28/116:40 a.m.STL - YYZ

1 stop3h 44mDelta

Deal found 30/10C$ 550

Wed 26/1110:55 a.m.YYZ - MCI

1 stop26h 08mMultiple Airlines

Wed 3/127:31 p.m.MCI - YYZ

1 stop18h 09mMultiple Airlines

Deal found 29/10C$ 482

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 31 October 2025.

Sun 7/128:00 p.m.YYZ - STL

1 stop13h 59mMultiple Airlines

Deal found 30/10C$ 228

Sun 14/128:00 p.m.YYZ - STL

1 stop13h 59mMultiple Airlines

Deal found 30/10C$ 229

Mon 15/125:15 p.m.YYZ - STL

1 stop30h 18mMultiple Airlines

Deal found 29/10C$ 236

Sun 14/127:10 a.m.YYZ - MCI

1 stop17h 05mMultiple Airlines

Deal found 30/10C$ 242

Fri 5/1212:50 p.m.YYZ - MCI

1 stop11h 25mMultiple Airlines

Deal found 30/10C$ 246

Sat 13/122:17 p.m.YOW - MCI

1 stop6h 37mUnited Airlines

Deal found 28/10C$ 246

Mon 15/127:30 p.m.YOW - STL

2 stops17h 45mUnited Airlines

Deal found 30/10C$ 249

Fri 5/1212:50 p.m.YYZ - STL

1 stop10h 43mMultiple Airlines

Deal found 30/10C$ 250

Sat 13/123:25 p.m.YYZ - STL

1 stop8h 08mMultiple Airlines

Deal found 29/10C$ 253

Sun 14/127:30 p.m.YOW - MCI

2 stops16h 09mUnited Airlines

Deal found 28/10C$ 256

Thu 13/117:00 a.m.YYZ - STL

1 stop11h 57mMultiple Airlines

Deal found 29/10C$ 256

Mon 10/114:00 p.m.YYZ - STL

2 stops27h 36mMultiple Airlines

Deal found 29/10C$ 257

Fly from

Fly to

Route

Depart

Return

Price

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 3/2

9:15 a.m.-3:29 p.m.

1 stop7h 14m

Lambert-St Louis

Wed 4/2

4:05 p.m.-11:08 p.m.

1 stop6h 03m

C$ 413

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 7/4

6:52 a.m.-12:20 p.m.

1 stop6h 28m

Lambert-St Louis

Wed 8/4

6:30 a.m.-12:41 p.m.

1 stop5h 11m

C$ 420

OttawaKansas City

YOW - MCI

YOWMCI

Ottawa

Fri 12/12

6:20 a.m.-10:39 a.m.

1 stop5h 19m

Kansas City

Tue 16/12

6:00 a.m.-9:56 p.m.

2 stops14h 56m

C$ 420

OttawaKansas City

YOW - MCI

YOWMCI

Ottawa

Sun 5/4

6:00 a.m.-11:22 a.m.

1 stop6h 22m

Kansas City

Wed 8/4

6:00 a.m.-4:15 p.m.

2 stops9h 15m

C$ 420

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 21/1

11:30 a.m.-6:14 p.m.

1 stop7h 44m

Lambert-St Louis

Sat 24/1

6:43 p.m.-10:53 a.m.

1 stop15h 10m

C$ 423

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sat 20/12

3:10 p.m.-11:33 p.m.

1 stop9h 23m

Lambert-St Louis

Mon 5/1

4:05 p.m.-11:08 p.m.

1 stop6h 03m

C$ 429

TorontoKansas City

YYZ - MCI

YYZMCI

Toronto Pearson Intl

Fri 21/11

7:00 a.m.-6:36 p.m.

1 stop12h 36m

Kansas City

Fri 12/12

3:47 p.m.-11:43 a.m.

1 stop18h 56m

C$ 433

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 24/2

6:00 a.m.-1:49 p.m.

1 stop8h 49m

Lambert-St Louis

Sun 1/3

7:00 a.m.-7:01 p.m.

1 stop11h 01m

C$ 447

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 13/1

11:30 a.m.-6:16 p.m.

1 stop7h 46m

Lambert-St Louis

Fri 16/1

6:00 a.m.-11:59 a.m.

1 stop4h 59m

C$ 469

TorontoKansas City

YYZ - MCI

YYZMCI

Toronto Pearson Intl

Wed 26/11

9:35 a.m.-6:36 p.m.

1 stop10h 01m

Kansas City

Wed 3/12

7:31 p.m.-11:43 a.m.

1 stop15h 12m

C$ 486

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/10

Showing 1-10 of 60 results

...

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.

Cheapflights Insights

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

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

Currently, October is the cheapest month in which you can book a flight from Region of Ontario to Missouri (average of C$ 419). Flying from Region of Ontario to Missouri in February is currently the most expensive (average of C$ 560). 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 at noon. If you’re flexible enough to do this you can expect to save up to 10% on your trip compared to booking a flight in the morning.

Reviews of airlines servicing Missouri

Get a feel of what it's like to fly with Delta,United Airlines, andAmerican Airlines 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

7.9

Good

7,998 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!

Delta

7.9

Good

7,998 reviews

Delta

7.9

Good

7,998 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!

United Airlines

7.4

Good

8,998 reviews

Delta

7.9

Good

7,998 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!

American Airlines

7.2

Good

11,035 reviews

Delta

7.9

Good

7,998 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!

WestJet

7.2

Good

3,152 reviews

Delta

7.9

Good

7,998 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!

Air Canada

7.1

Good

10,381 reviews

Delta

7.9

Good

7,998 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!

Related info for your journey

How long is the flight from Region of Ontario to Missouri?
Airlines like Air Canada, United Airlines, and American Airlines fly from Region of Ontario to Missouri in about 6h 28m. The time it takes to get you to your destination can typically vary by up to 1h 16m. The distance between Region of Ontario and Missouri is about 1413 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines to fly from Region of Ontario to Missouri one-way?
The cheapest airlines for a one-way flight from Region of Ontario to Missouri are United Airlines (C$ 246), American Airlines (C$ 430), and Delta (C$ 440).
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, October is the cheapest month in which you can book a flight from Region of Ontario to Missouri (average of C$ 419). Flying from Region of Ontario to Missouri in February is currently the most expensive (average of C$ 560). 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

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Pearson Intl to Reagan-National flights

Pierre Elliott Trudeau Intl to Orlando flights

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Complete your trip

Missouri car rentals

Lambert-St Louis Airport car rentals

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Springfield-Branson Airport car rentals

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Direct flights to United States

Ontario to Missouri flights

Pearson Intl to St. Louis flights

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Pierre Elliott Trudeau Intl to St. Louis flights

Pierre Elliott Trudeau Intl to Kansas City flights

Ottawa to St. Louis flights

Ottawa to Kansas City flights

Pearson Intl to Columbia flights

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Pearson Intl to Quincy flights

Pierre Elliott Trudeau Intl to Cape Girardeau flights

Top 5 airlines flying from Ontario to Missouri

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 432	AverageC$ 658	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
American Airlines	CheapestC$ 435	AverageC$ 698	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
United Airlines	CheapestC$ 470	AverageC$ 838	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Delta	CheapestC$ 480	AverageC$ 688	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
WestJet	CheapestC$ 563	AverageC$ 918	FlexibilityNo cancel fee	On-time60%	Search WestJet flights

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

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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.

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Cheap flights from Ontario to Missouri 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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ontario to Missouri

Keep the following information in mind while searching for Ontario to Missouri flight deals. Data was last updated 31 October 2025.

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Find 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 31 October 2025.

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 31 October 2025.

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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

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

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 31 October 2025.

Reviews of airlines servicing Missouri

Get a feel of what it's like to fly with Delta,United Airlines, andAmerican Airlines 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

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.

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

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

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?

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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

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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 31 October 2025.