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$91+ Cheap flights from Ontario to Kansas City (ONT - MCI)

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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MCI
jun. 2 — jun. 91
lun. 6/2
lun. 6/9
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Kansas City are usually found in September or August, booked 75 days in advance, depart on a Friday or Saturday and return on a Wednesday

Cheap flight deals from Ontario to Kansas City

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Kansas City (MCI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated mayo 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$210
(Booking.com)

One-way from

$91
(Trip.com)

Popular in

May

Cheapest in

September

Average price

$466
Provider with most accurate pricing for Ontario-Kansas City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Kansas City flights.
Search Deals
From Ontario to Kansas City
Search Deals
One-way flight from Ontario to Kansas City
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

Find flight deals from Ontario to Kansas City

Cheapest flights from Ontario to Kansas City
Explore the most affordable flight options available from Ontario to Kansas City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mayo 28, 2025.

This Booking.com deal was found by Cheapflights users on 5/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/812:59 amONT - MCI
1 stop15h 24mFrontier
mié. 7/167:20 pmMCI - ONT
1 stop6h 30mFrontier
Deal found 5/26$210
This Alaska Airlines deal was found by Cheapflights users on 5/27. 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.
mié. 8/207:10 amONT - MCI
1 stop6h 51mAlaska Airlines
mié. 9/37:00 amMCI - ONT
1 stop9h 09mAlaska Airlines
Deal found 5/27$318
This Delta deal was found by Cheapflights users on 5/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/96:00 amONT - MCI
1 stop5h 20mDelta
mié. 7/166:40 amMCI - ONT
1 stop7h 34mDelta
Deal found 5/26$335
This United Airlines deal was found by Cheapflights users on 5/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/91:19 pmONT - MCI
2 stops8h 12mUnited Airlines
mié. 7/165:15 pmMCI - ONT
1 stop5h 39mUnited Airlines
Deal found 5/26$340
This American Airlines deal was found by Cheapflights users on 5/27. 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.
sáb. 10/256:47 amONT - MCI
2 stops7h 13mAmerican Airlines
mar. 10/286:01 amMCI - ONT
1 stop7h 40mAmerican Airlines
Deal found 5/27$347
This Hawaiian Airlines deal was found by Cheapflights users on 5/27. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/61:31 pmONT - MCI
1 stop8h 28mHawaiian Airlines
mié. 10/157:00 amMCI - ONT
1 stop7h 37mHawaiian Airlines
Deal found 5/27$352
This Southwest deal was found by Cheapflights users on 5/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/172:15 pmONT - MCI
1 stop8h 30mSouthwest
dom. 7/202:20 pmMCI - ONT
1 stop8h 30mSouthwest
Deal found 5/27$407

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Kansas City 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 mayo 28, 2025.
Use the filters below to find and compare flights from Ontario to Kansas City that are best for you.

Fly from

Ontario

Fly to

Kansas City

Route

Depart

Return

Price

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

mar. 7/8

12:59 am-6:23 pm

1 stop15h 24m

Kansas City

mié. 7/16

7:20 pm-11:50 pm

1 stop6h 30m

$210

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

mié. 8/20

7:10 am-4:01 pm

1 stop6h 51m

Kansas City

mié. 9/3

7:00 am-2:09 pm

1 stop9h 09m

$318

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

mié. 7/9

6:00 am-1:20 pm

1 stop5h 20m

Kansas City

mié. 7/16

6:40 am-12:14 pm

1 stop7h 34m

$335

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

mié. 7/9

1:19 pm-11:31 pm

2 stops8h 12m

Kansas City

mié. 7/16

5:15 pm-8:54 pm

1 stop5h 39m

$340

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

sáb. 10/25

6:47 am-4:00 pm

2 stops7h 13m

Kansas City

mar. 10/28

6:01 am-11:41 am

1 stop7h 40m

$347

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

lun. 10/6

1:31 pm-11:59 pm

1 stop8h 28m

Kansas City

mié. 10/15

7:00 am-12:37 pm

1 stop7h 37m

$352

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

jue. 7/17

2:15 pm-12:45 am

1 stop8h 30m

Kansas City

dom. 7/20

2:20 pm-8:50 pm

1 stop8h 30m

$407

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

dom. 6/8

5:21 pm-7:06 pm

1 stop23h 45m

$91

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

mar. 8/26

7:10 am-4:01 pm

1 stop6h 51m

$159

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

mar. 11/11

6:47 am-3:59 pm

2 stops7h 12m

$165

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/27

Showing 1-10 of 15 results
1
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Compare providers for flights from Ontario to Kansas City

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Kansas City in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Kansas City flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Kansas City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Kansas City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Kansas City flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Kansas City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Kansas City

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

How far ahead should I book a flight from Ontario to Kansas City?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Kansas City. Price data was last updated on May 23, 2025.

Booking 75 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Kansas City. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Ontario to Kansas City (average of $298). Flying from Ontario to Kansas City in June is currently the most expensive (average of $352). 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 ONT to MCI?

Find hourly flight availability from Ontario to Kansas City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated mayo 28, 2025.

It’s optimal to fly from Ontario to Kansas City in the evening. By choosing this option you can save up to 40% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Ontario to Kansas City?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Kansas City. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Ontario to Kansas City flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Kansas City by month

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

In terms of precipitation, rainfall in Kansas City ranges from 1.1 - 5.2 inches per month. May is typically the wettest month, when rainfall can reach 5.2 in. January is typically the driest time to visit Kansas City when rainfall is around 1.1 in.

Temperature in Kansas City by month

Plan your trip to Kansas City by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Kansas City, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Kansas City

Get insights into the airlines that provide service to Kansas City. 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 Kansas City. Reviews last updated mayo 28, 2025.
To help decide which airline to fly from Ontario to Kansas City, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.9

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.9

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
7,957 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,460 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.9

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
8,756 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.9

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

  • What are the cheapest airlines flying from Ontario to Kansas City round-trip?

    Our cheapest airline available from Ontario to Kansas City is Frontier. Our recent data shows that you can find tickets from as low as $210 on this airline. Additional options worth looking into are Alaska Airlines and Delta, starting at $318 and $335 round-trip. Frontier is priced at 45% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $91. Alaska Airlines flights start at $159 while deals on American Airlines start at $165 one-way.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Ontario to Kansas City (average of $298). Flying from Ontario to Kansas City in June is currently the most expensive (average of $352). 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

Traveling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
Shawnee
Olathe
Liberty
Overland Park
Lenexa
North Kansas City
Kansas City
Lansing
Lawrence
Belton

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Alternative routes for Ontario to Kansas City

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Top 6 airlines flying from Ontario to Kansas City

Discover the top 6 airlines that operate flights from Ontario to Kansas City. 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 mayo 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$72Average$192FlexibilityNo cancel feeOn-time65%
FrontierCheapest$116Average$242FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$263Average$484FlexibilityNo cancel feeOn-time69%
DeltaCheapest$284Average$351FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$318Average$438FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$322Average$444FlexibilityNo cancel feeOn-time63%

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