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$139+ Cheap flights from Kansas City (MCI) to Ontario

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — YYZ
Mar 28 — Apr 41
Sat 3/28
Sat 4/4
1 adult, Economy
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Cheap flight deals from Kansas City to Ontario

Cheapest flights from Kansas City to Ontario
Explore the most affordable flight options available from Kansas City to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 26, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/75:45 am
MCI
-
YYZ
1 stop7h 23m
Multiple Airlines
Wed 4/83:40 pm
YYZ
-
MCI
1 stop20h 49m
Multiple Airlines
Deal found 2/24$345
This Kiwi.com deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/612:24 pm
MCI
-
YYZ
1 stop29h 41m
Multiple Airlines
Wed 4/83:40 pm
YYZ
-
MCI
1 stop20h 49m
Multiple Airlines
Deal found 2/24$357
This United Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/118:00 am
MCI
-
YOW
1 stop8h 07m
United Airlines
Sat 4/186:00 am
YOW
-
MCI
1 stop10h 02m
United Airlines
Deal found 2/25$366
This Kiwi.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2312:15 pm
MCI
-
YYZ
1 stop22h 28m
Multiple Airlines
Fri 4/248:00 pm
YYZ
-
MCI
1 stop28h 36m
Multiple Airlines
Deal found 2/25$369
This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/212:24 pm
MCI
-
YYZ
1 stop9h 56m
Multiple Airlines
Sun 4/57:55 pm
YYZ
-
MCI
1 stop22h 14m
Multiple Airlines
Deal found 2/26$373
This United Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/125:45 pm
MCI
-
YOW
1 stop15h 18m
United Airlines
Sun 4/197:30 pm
YOW
-
MCI
2 stops17h 54m
United Airlines
Deal found 2/25$376
This Kiwi.com deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/165:45 am
MCI
-
YYZ
1 stop17h 44m
Multiple Airlines
Mon 3/238:30 pm
YYZ
-
MCI
2 stops39h 28m
Multiple Airlines
Deal found 2/24$378
This Kiwi.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/57:00 am
MCI
-
YYZ
1 stop12h 00m
Multiple Airlines
Mon 6/87:45 am
YYZ
-
MCI
1 stop17h 12m
Multiple Airlines
Deal found 2/25$382
This Kiwi.com deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/107:00 am
MCI
-
YYZ
2 stops35h 36m
Multiple Airlines
Tue 3/179:35 am
YYZ
-
MCI
1 stop26h 54m
Multiple Airlines
Deal found 2/23$387
This Kiwi.com deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/46:04 pm
MCI
-
YYZ
1 stop11h 16m
Multiple Airlines
Wed 4/83:40 pm
YYZ
-
MCI
1 stop20h 49m
Multiple Airlines
Deal found 2/24$388
This Kiwi.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/255:45 am
MCI
-
YYZ
1 stop17h 29m
Multiple Airlines
Wed 4/110:00 am
YYZ
-
MCI
2 stops32h 09m
Multiple Airlines
Deal found 2/25$391
This Kiwi.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/15:15 am
MCI
-
YOW
1 stop17h 33m
Multiple Airlines
Mon 6/84:15 pm
YOW
-
MCI
1 stop8h 42m
Multiple Airlines
Deal found 2/22$443

Find flight deals from Kansas City to Ontario

Keep the following information in mind while searching for Kansas City to Ontario flight deals. Data was last updated February 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$345
(Kiwi.com)

One-way from

$139
(Kiwi.com)

Popular in

March

Cheapest in

June

Average price

$720
Provider with most accurate pricing for Kansas City-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kansas City-Toronto (YTO) flights.
Search Deals
From Kansas City to Ontario
Search Deals
One-way flight from Kansas City to Ontario
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($10 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kansas City to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 26, 2026.
Use the filters below to find and compare flights from Kansas City to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Sat 4/11

8:00 am-5:07 pm

1 stop8h 07m

Ottawa

Sat 4/18

6:00 am-3:02 pm

1 stop10h 02m

$366

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Sun 4/12

6:15 am-1:59 pm

1 stop6h 44m

Ottawa

Sun 4/19

10:00 am-3:02 pm

1 stop6h 02m

$366

Kansas CityToronto

MCI - YTZ

MCIYTZ

Kansas City

Tue 3/10

4:24 pm-1:20 pm

2 stops19h 56m

Toronto Island

Tue 3/17

3:00 pm-11:29 am

2 stops21h 29m

$467

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Fri 4/10

6:15 am-5:15 pm

2 stops10h 00m

Ottawa

Fri 4/17

6:25 am-12:24 pm

1 stop6h 59m

$480

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Sat 3/28

12:24 pm-12:45 am

1 stop11h 21m

Montreal Pierre Elliott Trudeau Intl

Sat 4/4

4:55 pm-5:09 pm

2 stops25h 14m

$496

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Tue 4/7

11:30 am-9:26 pm

1 stop8h 56m

Montreal Pierre Elliott Trudeau Intl

Wed 4/8

9:15 am-9:59 pm

1 stop13h 44m

$501

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Fri 4/10

6:15 am-7:45 pm

2 stops12h 30m

Montreal Pierre Elliott Trudeau Intl

Fri 4/17

1:20 pm-9:59 pm

1 stop9h 39m

$511

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Thu 3/19

6:30 am-1:45 pm

1 stop6h 15m

Montreal Pierre Elliott Trudeau Intl

Mon 3/30

3:45 pm-11:54 pm

1 stop9h 09m

$521

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Mon 4/27

5:11 pm-3:45 pm

2 stops21h 34m

Toronto Pearson Intl

Fri 5/1

4:55 pm-4:17 pm

2 stops24h 22m

$531

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Mon 3/2

6:27 pm-10:26 am

1 stop14h 59m

Ottawa

Wed 3/4

11:10 am-9:59 pm

1 stop11h 49m

$538

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/23

Showing 1-10 of 53 resultsSorted by cheapest first
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6

Best time to book a flight from Kansas City to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Kansas City 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 Kansas City to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Kansas City to Region of Ontario (average of $162). Flying from Kansas City to Region of Ontario in December is currently the most expensive (average of $756). 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.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated February 26, 2026.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Kansas City to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,237 reviews

Overall

7.9

Crew

8.5

Food

7.2

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,237 reviews
Delta
7.9
Good
8,237 reviews

Overall

7.9

Crew

8.5

Food

7.2

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,348 reviews
Delta
7.9
Good
8,237 reviews

Overall

7.9

Crew

8.5

Food

7.2

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,353 reviews
Delta
7.9
Good
8,237 reviews

Overall

7.9

Crew

8.5

Food

7.2

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
WestJet
7.2
Good
3,275 reviews
Delta
7.9
Good
8,237 reviews

Overall

7.9

Crew

8.5

Food

7.2

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Kansas City to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Kansas City to Ontario?

    Kansas City (MCI), located 17.4 mi from the city center, is the airport you fly out of when you book flights from Kansas City to Ontario.

  • How long is the flight from Kansas City to Region of Ontario?

    United Airlines, Delta, and WestJet can get you from Kansas City to Region of Ontario in just under 5h 38m. Your travel time can differ by up to 5h 10m. There are 836 mi between Kansas City and Region of Ontario. This flight may include one or multiple stops.

  • What are the most popular routes from Kansas City to Region of Ontario?

    Most travelers choose Kansas City - Toronto Pearson Intl, Kansas City - Montreal Pierre Elliott Trudeau Intl or Kansas City - Ottawa when deciding on the best route from Kansas City to Region of Ontario.

  • Can I find deals for flights from Kansas City to Ontario that include hotel bookings?

    Yes. In addition to deals on Kansas City to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kansas City to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kansas City to Ontario.

  • Can I find deals for business class flights from Kansas City to Ontario?

    Yes. Cheapflights offers flight deals from Kansas City 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 Kansas City to Region of Ontario?

    Currently, August is the cheapest month in which you can book a flight from Kansas City to Region of Ontario (average of $162). Flying from Kansas City to Region of Ontario in December is currently the most expensive (average of $756). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 4 airlines flying from Kansas City to Ontario

Discover the top 4 airlines that operate flights from Kansas City to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$401Average$763FlexibilityNo cancel feeOn-time69%
DeltaCheapest$473Average$722FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$535Average$661FlexibilityNo cancel feeOn-time71%
WestJetCheapest$653Average$748FlexibilityNo cancel feeOn-time60%

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