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$171+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — YYZ
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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Cheap 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 31, 2025.

Round-trip from

$274
(Kiwi.com)

One-way from

$171
(Kiwi.com)
From Kansas City to Ontario
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One-way flight from Kansas City to Ontario
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Find 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 31, 2025.

This Kiwi.com deal was found by Cheapflights users on 3/30. 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 5/1611:43 amMCI - YYZ
1 stop8h 25mMultiple Airlines
Tue 5/207:15 amYYZ - MCI
1 stop16h 26mMultiple Airlines
Deal found 3/30$274
This Mytrip deal was found by Cheapflights users on 3/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1611:43 amMCI - YUL
2 stops11h 54mMultiple Airlines
Sun 5/186:45 amYUL - MCI
2 stops28h 46mMultiple Airlines
Deal found 3/30$317
This Air Canada deal was found by Cheapflights users on 3/30. 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.
Sat 6/146:43 pmMCI - YUL
2 stops13h 40mAir Canada
Sun 6/151:15 pmYUL - MCI
1 stop11h 00mAir Canada
Deal found 3/30$378
This Mytrip deal was found by Cheapflights users on 3/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/165:46 amMCI - YTZ
2 stops9h 59mMultiple Airlines
Mon 5/1912:00 pmYTZ - MCI
2 stops26h 50mMultiple Airlines
Deal found 3/30$379
This United Airlines deal was found by Cheapflights users on 3/30. 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 4/139:08 amMCI - YUL
1 stop6h 51mUnited Airlines
Mon 4/1411:15 amYUL - MCI
2 stops11h 45mUnited Airlines
Deal found 3/30$410
This Delta deal was found by Cheapflights users on 3/30. 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.
Thu 4/106:15 amMCI - YUL
1 stop4h 42mDelta
Sat 4/193:06 pmYUL - MCI
1 stop9h 53mDelta
Deal found 3/30$413
This Mytrip deal was found by Cheapflights users on 3/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/152:45 pmMCI - YOW
3 stops32h 37mMultiple Airlines
Thu 5/227:00 amYOW - MCI
2 stops16h 41mMultiple Airlines
Deal found 3/31$433
This Justfly.com deal was found by Cheapflights users on 3/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1010:37 amMCI - YUL
1 stop4h 23mWestJet
Fri 4/186:00 pmYUL - MCI
1 stop6h 59mWestJet
Deal found 3/30$433
This Delta deal was found by Cheapflights users on 3/30. 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.
Sat 5/178:10 amMCI - YYZ
1 stop11h 34mDelta
Sat 5/246:15 amYYZ - MCI
1 stop11h 12mDelta
Deal found 3/30$524
This American Airlines deal was found by Cheapflights users on 3/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/186:00 amMCI - YYZ
1 stop8h 40mAmerican Airlines
Sun 5/251:15 pmYYZ - MCI
1 stop11h 39mAmerican Airlines
Deal found 3/30$589
This Justfly.com deal was found by Cheapflights users on 3/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/65:45 amMCI - YYZ
1 stop10h 15mWestJet
Sun 5/116:30 amYYZ - MCI
1 stop4h 12mWestJet
Deal found 3/30$609
This United Airlines deal was found by Cheapflights users on 3/30. 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 5/187:45 amMCI - YYZ
1 stop4h 57mUnited Airlines
Fri 5/235:15 pmYYZ - MCI
1 stop5h 03mUnited Airlines
Deal found 3/30$626

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 31, 2025.
Use the filters below to find and compare flights from Kansas City to Ontario that are best for you.

Fly from

Kansas City

Fly to

Ontario

Route

Depart

Return

Price

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Fri 5/16

11:43 am-9:08 pm

1 stop8h 25m

Toronto Pearson Intl

Tue 5/20

7:15 am-10:41 pm

1 stop16h 26m

$274

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Fri 5/16

11:43 am-12:37 am

2 stops11h 54m

Montreal Pierre Elliott Trudeau Intl

Sun 5/18

6:45 am-10:31 am

2 stops28h 46m

$317

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Sat 6/14

6:43 pm-9:23 am

2 stops13h 40m

Montreal Pierre Elliott Trudeau Intl

Sun 6/15

1:15 pm-11:15 pm

1 stop11h 00m

$378

Kansas CityToronto

MCI - YTZ

MCIYTZ

Kansas City

Fri 5/16

5:46 am-4:45 pm

2 stops9h 59m

Toronto Island

Mon 5/19

12:00 pm-1:50 pm

2 stops26h 50m

$379

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Sun 4/13

9:08 am-4:59 pm

1 stop6h 51m

Montreal Pierre Elliott Trudeau Intl

Mon 4/14

11:15 am-10:00 pm

2 stops11h 45m

$410

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Thu 4/10

6:15 am-11:57 am

1 stop4h 42m

Montreal Pierre Elliott Trudeau Intl

Sat 4/19

3:06 pm-11:59 pm

1 stop9h 53m

$413

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

Thu 4/10

10:37 am-4:00 pm

1 stop4h 23m

Montreal Pierre Elliott Trudeau Intl

Fri 4/18

6:00 pm-11:59 pm

1 stop6h 59m

$433

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Thu 5/15

2:45 pm-12:22 am

3 stops32h 37m

Ottawa

Thu 5/22

7:00 am-10:41 pm

2 stops16h 41m

$433

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Sat 5/17

8:10 am-8:44 pm

1 stop11h 34m

Toronto Pearson Intl

Sat 5/24

6:15 am-4:27 pm

1 stop11h 12m

$524

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

Sun 5/18

6:00 am-3:40 pm

1 stop8h 40m

Toronto Pearson Intl

Sun 5/25

1:15 pm-11:54 pm

1 stop11h 39m

$589

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 28 results
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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, January is the cheapest month in which you can book a flight from Kansas City to Region of Ontario (average of $243). Flying from Kansas City to Region of Ontario in July is currently the most expensive (average of $359). 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 MCI to ON?

Find hourly flight availability from Kansas City 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 March 31, 2025.

When flying from Kansas City to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Region of Ontario ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

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 31, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and United Airlines from Kansas City to Ontario to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,811 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,811 reviews
Alaska Airlines
8.0
Very good
9,811 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,811 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,614 reviews
Alaska Airlines
8.0
Very good
9,811 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,811 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
WestJet
7.2
Good
2,789 reviews
Alaska Airlines
8.0
Very good
9,811 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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.

  • What are the cheapest airlines to fly from Kansas City to Region of Ontario one-way?

    One-way options have recently been found by users for as low as $185 on Air Canada. Other airlines that offer cheap prices include United Airlines from $190 and Delta from $227 one-way.

  • 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 - Ottawa when deciding on the best route from Kansas City to Region of Ontario.

  • What are the cheapest flights from Kansas City to Region of Ontario?

    On average you can expect to pay $984 for a flight from Kansas City to Region of Ontario. The cheapest flight overall is $556 while the most popular route, (Kansas City - Montreal Pierre Elliott Trudeau Intl) is currently priced at $317.

  • 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, January is the cheapest month in which you can book a flight from Kansas City to Region of Ontario (average of $243). Flying from Kansas City to Region of Ontario in July is currently the most expensive (average of $359). 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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Alternative routes for Kansas City to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
St. Louis to Pearson Intl flights
Kansas City to Vancouver Intl flights
St. Louis to Vancouver Intl flights
St. Louis to Calgary flights
Kansas City to Pierre Elliott Trudeau Intl flights
Kansas City to Calgary flights
St. Louis to Pierre Elliott Trudeau Intl flights
Kansas City to Pearson Intl flights
Springfield to Vancouver Intl flights
St. Louis to Halifax flights
St. Louis to Québec City flights
St. Louis to Winnipeg flights
Kansas City to Victoria flights
St. Louis to St. John's flights
St. Louis to Edmonton flights
Kansas City to Québec City flights
St. Louis to Ottawa flights
Kansas City to Ottawa flights
Kansas City to Halifax flights
Springfield to Pearson Intl flights
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Kansas City to Edmonton flights
Kansas City to Toronto Island flights
St. Louis to Kelowna flights
Columbia to Pearson Intl flights
Kansas City to Winnipeg flights
Kansas City to Kelowna flights
Joplin to Pearson Intl flights
Joplin to Pierre Elliott Trudeau Intl flights
Springfield to Pierre Elliott Trudeau Intl flights
St. Louis to Sydney flights
Springfield to Toronto Island flights
St. Louis to Grande Prairie flights
Kansas City to Saskatoon flights
Kansas City to Moncton flights
St. Louis to Victoria flights
Columbia to Pierre Elliott Trudeau Intl flights

Top 5 airlines flying from Kansas City to Ontario

Discover the top 5 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 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$228Average$545FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$447Average$642FlexibilityNo cancel feeOn-time69%
DeltaCheapest$462Average$721FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$497Average$706FlexibilityNo cancel feeOn-time60%
American AirlinesCheapest$505Average$640FlexibilityNo cancel feeOn-time71%
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