HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$188+ 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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — YYZ
Apr 24 — May 11
Fri 4/24
Fri 5/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Kansas City to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 March 25, 2026.

This United Airlines deal was found by Cheapflights users on 3/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:15 am
MCI
-
YOW
1 stop14h 20m
United Airlines
Mon 4/135:25 pm
YOW
-
MCI
1 stop5h 34m
United Airlines
Deal found 3/23$434
This Kiwi.com deal was found by Cheapflights users on 3/24. 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.
Thu 4/2311:53 am
MCI
-
YYZ
2 stops22h 50m
Multiple Airlines
Thu 4/307:15 am
YYZ
-
MCI
1 stop10h 51m
Multiple Airlines
Deal found 3/24$466
This Kiwi.com deal was found by Cheapflights users on 3/21. 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 5/284:47 pm
MCI
-
YYZ
1 stop30h 07m
Multiple Airlines
Wed 6/39:50 am
YYZ
-
MCI
1 stop8h 33m
Multiple Airlines
Deal found 3/21$467
This Kiwi.com deal was found by Cheapflights users on 3/21. 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 4/1012:24 pm
MCI
-
YYZ
1 stop9h 56m
Multiple Airlines
Mon 4/139:35 am
YYZ
-
MCI
1 stop32h 34m
Multiple Airlines
Deal found 3/21$475
This Delta deal was found by Cheapflights users on 3/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:30 am
MCI
-
YYZ
1 stop10h 39m
Delta
Tue 4/2810:00 am
YYZ
-
MCI
1 stop9h 34m
Delta
Deal found 3/24$496
This Kiwi.com deal was found by Cheapflights users on 3/21. 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 5/276:18 pm
MCI
-
YYZ
1 stop21h 27m
Multiple Airlines
Sat 5/309:50 am
YYZ
-
MCI
1 stop8h 33m
Multiple Airlines
Deal found 3/21$500
This Kiwi.com deal was found by Cheapflights users on 3/21. 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 5/276:18 pm
MCI
-
YYZ
1 stop21h 27m
Multiple Airlines
Sun 5/315:50 pm
YYZ
-
MCI
2 stops24h 39m
Multiple Airlines
Deal found 3/21$511
This United Airlines deal was found by Cheapflights users on 3/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/76:17 am
MCI
-
YOW
2 stops7h 00m
United Airlines
Thu 5/145:25 pm
YOW
-
MCI
1 stop16h 16m
United Airlines
Deal found 3/23$520
This Kiwi.com deal was found by Cheapflights users on 3/21. 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 5/276:24 pm
MCI
-
YYZ
2 stops18h 41m
Multiple Airlines
Fri 5/296:10 am
YYZ
-
MCI
1 stop4h 36m
Multiple Airlines
Deal found 3/21$522
This Air Canada deal was found by Cheapflights users on 3/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:15 am
MCI
-
YOW
2 stops11h 40m
Air Canada
Mon 4/137:30 pm
YOW
-
MCI
2 stops17h 54m
Air Canada
Deal found 3/23$525
This United Airlines deal was found by Cheapflights users on 3/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/301:05 pm
MCI
-
YOW
1 stop7h 30m
United Airlines
Sun 5/35:25 pm
YOW
-
MCI
1 stop16h 16m
United Airlines
Deal found 3/22$534
This Delta deal was found by Cheapflights users on 3/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/83:06 pm
MCI
-
YOW
2 stops8h 14m
Delta
Fri 5/1512:25 pm
YOW
-
MCI
2 stops11h 51m
Delta
Deal found 3/23$539

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 March 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$434
(United Airlines)

One-way from

$188
(United Airlines)

Popular in

March

Cheapest in

February

Average price

$794
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
High demand for flights, 6% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 25, 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

Cheapest round-trip

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Thu 5/7

6:17 am-1:59 pm

1 stop6h 42m

Ottawa

Thu 5/14

5:25 pm-8:41 am

1 stop16h 16m

$434

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Thu 4/9

6:15 am-9:35 pm

1 stop14h 20m

Ottawa

Mon 4/13

5:25 pm-9:59 pm

1 stop5h 34m

$434

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Tue 4/21

6:15 am-5:07 pm

1 stop9h 52m

Ottawa

Wed 4/22

6:25 am-10:27 am

1 stop5h 02m

$434

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Thu 4/30

6:17 am-9:35 pm

1 stop14h 18m

Ottawa

Sun 5/3

10:44 am-11:31 pm

1 stop13h 47m

$435

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Sat 6/20

6:31 pm-4:45 pm

1 stop21h 14m

Toronto Pearson Intl

Mon 6/29

7:00 am-4:10 pm

1 stop10h 10m

$568

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Sat 4/18

6:15 am-3:45 pm

1 stop32h 30m

Toronto Pearson Intl

Sat 4/25

2:20 pm-7:54 am

1 stop18h 34m

$576

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Sat 5/9

5:35 am-5:40 pm

1 stop11h 05m

Toronto Pearson Intl

Sat 5/16

1:15 pm-10:57 pm

1 stop10h 42m

$584

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Fri 5/8

6:56 pm-10:03 am

2 stops14h 07m

Ottawa

Fri 5/15

10:44 am-11:31 pm

1 stop13h 47m

$588

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Mon 4/13

8:00 am-9:26 pm

1 stop12h 26m

Montreal Pierre Elliott Trudeau Intl

Fri 4/17

5:00 pm-2:33 pm

1 stop22h 33m

$619

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Sat 5/2

9:45 am-9:26 pm

1 stop10h 41m

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

6:10 am-6:15 pm

1 stop13h 05m

$619

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Showing 1-10 of 58 resultsSorted by cheapest first
1
2
3
...
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.

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

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 March 25, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andWestJet 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
8,324 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

Crew

8.5

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
8,324 reviews
Delta
7.9
Good
8,324 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

Crew

8.5

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
9,474 reviews
Delta
7.9
Good
8,324 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

Crew

8.5

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
3,300 reviews
Delta
7.9
Good
8,324 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

Crew

8.5

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
7.1
Good
11,491 reviews
Delta
7.9
Good
8,324 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

Crew

8.5

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, American Airlines, and Delta can get you from Kansas City to Region of Ontario in just under 6h 42m. Your travel time can differ by up to 4h 23m. There are 1055 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 - Montreal Pierre Elliott Trudeau Intl, Kansas City - Toronto Pearson Intl or Kansas City - Toronto Island 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

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.

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 March 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$401Average$732FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$408Average$661FlexibilityNo cancel feeOn-time71%
DeltaCheapest$473Average$722FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$593Average$732FlexibilityNo cancel feeOn-time60%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights