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$154+ 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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — YYZ
may. 4 — may. 111
dom. 5/4
dom. 5/11
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 abril 29, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$321
(Kiwi.com)

One-way from

$154
(Kiwi.com)

Popular in

January

Cheapest in

August

Average price

$699
Provider with most accurate pricing for Kansas City-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for Kansas City-Toronto (YTO) flights.
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From Kansas City to Ontario
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One-way flight from Kansas City to Ontario
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Highest demand for flights based on searches. 8% potential increase in price ($58 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 abril 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
mié. 6/46:45 pmMCI - YYZ
2 stops16h 45mMultiple Airlines
jue. 6/54:00 pmYYZ - MCI
1 stop7h 41mMultiple Airlines
Deal found 4/29$354
This Flightnetwork deal was found by Cheapflights users on 4/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/126:00 amMCI - YUL
1 stop16h 26mAir Canada
dom. 5/184:05 pmYUL - MCI
1 stop8h 39mAir Canada
Deal found 4/28$365
This American Airlines deal was found by Cheapflights users on 4/28. 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.
lun. 6/95:07 pmMCI - YUL
1 stop17h 23mAmerican Airlines
mar. 6/102:35 pmYUL - MCI
1 stop10h 15mAmerican Airlines
Deal found 4/28$368
This Delta deal was found by Cheapflights users on 4/28. 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.
jue. 6/52:05 pmMCI - YUL
1 stop8h 11mDelta
mié. 6/116:00 amYUL - MCI
1 stop4h 44mDelta
Deal found 4/28$402
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
jue. 6/55:46 amMCI - YUL
1 stop7h 34mMultiple Airlines
lun. 6/96:45 amYUL - MCI
2 stops16h 56mMultiple Airlines
Deal found 4/28$403
This United Airlines deal was found by Cheapflights users on 4/28. 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.
mar. 6/33:21 pmMCI - YUL
2 stops19h 19mUnited Airlines
dom. 6/86:15 amYUL - MCI
1 stop5h 21mUnited Airlines
Deal found 4/28$411
This WestJet deal was found by Cheapflights users on 4/28. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/86:30 amMCI - YUL
1 stop8h 55mWestJet
dom. 6/86:45 pmYUL - MCI
1 stop18h 23mWestJet
Deal found 4/28$444
This Mytrip deal was found by Cheapflights users on 4/29. 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.
mar. 6/105:46 amMCI - YTZ
2 stops30h 54mMultiple Airlines
mar. 6/176:45 amYTZ - MCI
2 stops16h 16mMultiple Airlines
Deal found 4/29$451
This Mytrip deal was found by Cheapflights users on 4/28. 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.
mar. 5/205:46 amMCI - YOW
3 stops37h 48mMultiple Airlines
vie. 5/234:25 pmYOW - MCI
1 stop30h 05mMultiple Airlines
Deal found 4/28$473
This American Airlines deal was found by Cheapflights users on 4/29. 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.
jue. 8/75:17 amMCI - YYZ
1 stop11h 23mAmerican Airlines
sáb. 8/96:30 amYYZ - MCI
1 stop7h 50mAmerican Airlines
Deal found 4/29$565
This Delta deal was found by Cheapflights users on 4/28. 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.
vie. 7/256:00 amMCI - YYZ
1 stop11h 09mDelta
sáb. 8/26:15 amYYZ - MCI
1 stop13h 03mDelta
Deal found 4/28$581
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/107:01 pmMCI - YYZ
1 stop18h 59mAlaska Airlines
mar. 6/174:45 pmYYZ - MCI
1 stop31h 50mAlaska Airlines
Deal found 4/29$661

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 abril 29, 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

mié. 6/4

6:45 pm-12:30 pm

2 stops16h 45m

Toronto Pearson Intl

jue. 6/5

4:00 pm-10:41 pm

1 stop7h 41m

$354

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

lun. 5/12

6:00 am-11:26 pm

1 stop16h 26m

Montreal Pierre Elliott Trudeau Intl

dom. 5/18

4:05 pm-11:44 pm

1 stop8h 39m

$365

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

lun. 6/9

5:07 pm-11:30 am

1 stop17h 23m

Montreal Pierre Elliott Trudeau Intl

mar. 6/10

2:35 pm-11:50 pm

1 stop10h 15m

$368

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

jue. 6/5

5:26 pm-11:54 pm

1 stop5h 28m

Montreal Pierre Elliott Trudeau Intl

vie. 6/13

7:00 am-12:08 pm

1 stop6h 08m

$402

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

jue. 6/5

5:46 am-2:20 pm

1 stop7h 34m

Montreal Pierre Elliott Trudeau Intl

lun. 6/9

6:45 am-10:41 pm

2 stops16h 56m

$403

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

mar. 6/3

3:21 pm-11:40 am

2 stops19h 19m

Montreal Pierre Elliott Trudeau Intl

dom. 6/8

6:15 am-10:36 am

1 stop5h 21m

$411

Kansas CityMontreal

MCI - YUL

MCIYUL

Kansas City

dom. 6/8

6:30 am-4:25 pm

1 stop8h 55m

Montreal Pierre Elliott Trudeau Intl

dom. 6/8

6:45 pm-12:08 pm

1 stop18h 23m

$444

Kansas CityToronto

MCI - YTZ

MCIYTZ

Kansas City

mar. 6/10

5:46 am-1:40 pm

2 stops30h 54m

Toronto Island

mar. 6/17

6:45 am-10:01 pm

2 stops16h 16m

$451

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

mar. 5/20

5:46 am-8:34 pm

3 stops37h 48m

Ottawa

vie. 5/23

4:25 pm-9:30 pm

1 stop30h 05m

$473

Kansas CityToronto

MCI - YYZ

MCIYYZ

Kansas City

jue. 8/7

5:17 am-5:40 pm

1 stop11h 23m

Toronto Pearson Intl

sáb. 8/9

6:30 am-1:20 pm

1 stop7h 50m

$565

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 26 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 abril 29, 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 abril 29, 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
9,961 reviews

Food

7.1

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Overall

8.0

Crew

8.5

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

Food

7.1

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Overall

8.0

Crew

8.5

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
7,929 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Food

7.1

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Overall

8.0

Crew

8.5

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

Food

7.1

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Overall

8.0

Crew

8.5

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

Food

7.1

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Overall

8.0

Crew

8.5

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

Food

7.1

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Overall

8.0

Crew

8.5

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

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 $170 on United Airlines. Other airlines that offer cheap prices include Delta from $172 and WestJet from $318 one-way.

  • 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 - Toronto Island 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 - Toronto Pearson Intl) is currently priced at $321.

  • 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
Kansas City to Calgary flights
St. Louis to Calgary flights
St. Louis to Pierre Elliott Trudeau Intl flights
Kansas City to Pearson Intl flights
Kansas City to Pierre Elliott Trudeau Intl flights
Springfield to Vancouver Intl flights
St. Louis to Winnipeg flights
Kansas City to Victoria flights
St. Louis to Québec City flights
Kansas City to Halifax flights
St. Louis to Edmonton flights
St. Louis to Halifax flights
Kansas City to Edmonton flights
St. Louis to St. John's flights
Kansas City to Québec City flights
Springfield to Pearson Intl flights
Kansas City to Kelowna flights
Kansas City to St. John's flights
Kansas City to Toronto Island flights
St. Louis to Ottawa flights
Columbia to Pearson Intl flights
St. Louis to Saskatoon flights
Kansas City to Winnipeg flights
Springfield to Calgary flights
Kansas City to Ottawa flights
St. Louis to Victoria flights
Springfield to Pierre Elliott Trudeau Intl flights
Joplin to Pierre Elliott Trudeau Intl flights
St. Louis to Sydney flights
St. Louis to Grande Prairie flights
Kansas City to Saskatoon flights
Kansas City to Moncton flights
St. Louis to Kelowna flights
Joplin to Pearson Intl flights
Springfield to Toronto Island 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 abril 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$228Average$564FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$447Average$642FlexibilityNo cancel feeOn-time69%
DeltaCheapest$462Average$681FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$497Average$727FlexibilityNo cancel feeOn-time60%
American AirlinesCheapest$519Average$646FlexibilityNo cancel feeOn-time71%

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