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Kansas City

$61+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MCI
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap 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 January 26, 2026.

This Priceline deal was found by Cheapflights users on 1/24. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/187:30 am
ONT
-
MCI
1 stop6h 14m
Frontier
Wed 2/254:39 pm
MCI
-
ONT
1 stop6h 55m
Frontier
Deal found 1/24$128
This CheapOair deal was found by Cheapflights users on 1/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/187:30 am
ONT
-
MCI
1 stop6h 14m
Frontier
Mon 2/238:33 pm
MCI
-
ONT
1 stop27h 01m
Frontier
Deal found 1/25$149
This Frontier deal was found by Cheapflights users on 1/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/146:00 am
ONT
-
MCI
1 stop11h 46m
Frontier
Sat 2/218:36 pm
MCI
-
ONT
1 stop5h 23m
Frontier
Deal found 1/25$154
This Frontier deal was found by Cheapflights users on 1/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1712:59 am
ONT
-
MCI
1 stop11h 07m
Frontier
Mon 4/202:15 pm
MCI
-
ONT
1 stop11h 40m
Frontier
Deal found 1/24$180
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
Tue 2/243:22 pm
ONT
-
MCI
2 stops22h 22m
Multiple Airlines
Tue 3/37:00 am
MCI
-
ONT
1 stop8h 11m
Multiple Airlines
Deal found 1/25$184
This Frontier deal was found by Cheapflights users on 1/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:05 am
ONT
-
MCI
1 stop11h 28m
Frontier
Mon 2/238:33 pm
MCI
-
ONT
1 stop5h 26m
Frontier
Deal found 1/25$185
This Kiwi.com deal was found by Cheapflights users on 1/26. 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.
Mon 2/236:43 pm
ONT
-
MCI
1 stop26h 50m
Multiple Airlines
Mon 3/28:33 pm
MCI
-
ONT
1 stop27h 01m
Multiple Airlines
Deal found 1/26$190
This CheapOair deal was found by Cheapflights users on 1/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:05 am
ONT
-
MCI
1 stop12h 24m
Frontier
Mon 3/28:33 pm
MCI
-
ONT
1 stop27h 01m
Frontier
Deal found 1/24$191
This Kiwi.com deal was found by Cheapflights users on 1/24. 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 2/266:05 am
ONT
-
MCI
1 stop12h 24m
Frontier
Sun 3/14:49 pm
MCI
-
ONT
2 stops22h 22m
Frontier
Deal found 1/24$193

Find 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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$128
(Priceline)

One-way from

$61
(Trip.com)

Popular in

May

Cheapest in

August

Average price

$472
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. 13% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 26, 2026.
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

Sat 4/18

12:59 am-1:30 pm

1 stop10h 31m

Kansas City

Mon 4/20

2:15 pm-11:55 pm

1 stop11h 40m

$235

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Tue 2/17

2:06 pm-11:33 pm

1 stop7h 27m

Kansas City

Mon 2/23

7:00 am-1:11 pm

1 stop8h 11m

$237

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Wed 4/22

6:00 am-1:20 pm

1 stop5h 20m

Kansas City

Wed 4/22

7:59 pm-11:44 pm

1 stop5h 45m

$257

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Wed 4/15

6:00 am-1:20 pm

1 stop5h 20m

Kansas City

Wed 4/15

7:59 pm-11:44 pm

1 stop5h 45m

$257

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Wed 4/15

5:05 pm-12:38 am

1 stop5h 33m

Kansas City

Sat 4/18

6:40 am-12:14 pm

1 stop7h 34m

$257

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Tue 4/21

6:00 am-1:20 pm

1 stop5h 20m

Kansas City

Tue 4/21

7:59 pm-11:44 pm

1 stop5h 45m

$257

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Tue 2/24

5:00 am-3:45 pm

2 stops8h 45m

Kansas City

Tue 3/3

9:12 am-5:41 pm

2 stops10h 29m

$285

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Tue 2/24

7:00 am-4:22 pm

1 stop7h 22m

Kansas City

Mon 3/2

8:33 pm-11:59 pm

1 stop5h 26m

$310

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Wed 4/15

5:05 pm-12:38 am

1 stop5h 33m

Kansas City

Mon 4/20

7:45 am-11:13 am

1 stop29h 28m

$310

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Mon 2/23

6:10 am-7:48 pm

1 stop11h 38m

Kansas City

Wed 2/25

2:49 pm-10:44 pm

1 stop9h 55m

$316

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 21 results
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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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
JustAirTicketPrice Accuracy-Trust Score*1 star

*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 Expedia the most. Expedia 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

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

Currently, September is the cheapest month in which you can book a flight from Ontario to Kansas City (average of $84). Flying from Ontario to Kansas City in January is currently the most expensive (average of $156). 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 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 January 26, 2026.
See what other customers who have flown with Southwest, Delta, and United Airlines from Ontario to Kansas City have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,268 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,268 reviews
Southwest
8.0
Very good
4,268 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,111 reviews
Southwest
8.0
Very good
4,268 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,199 reviews
Southwest
8.0
Very good
4,268 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,189 reviews
Southwest
8.0
Very good
4,268 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.7
Fair
3,058 reviews
Southwest
8.0
Very good
4,268 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

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.

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

    There are many flights that can get you from Ontario to Kansas City in 5h 20m. Fly via Frontier or Delta to get the fastest option. There are 1314 mi between Ontario and Kansas City. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $67 on this airline. Additional options worth looking into are Delta and Southwest, starting at $98 and $247 round-trip. Frontier is priced at 82% 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 $65. American Airlines flights start at $118 while deals on Delta start at $134 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, September is the cheapest month in which you can book a flight from Ontario to Kansas City (average of $84). Flying from Ontario to Kansas City in January is currently the most expensive (average of $156). 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 Kansas City?

Book flights to Kansas City if you plan to visit one of these locations
Lee's Summit
Independence
Kansas City
Warrensburg
Belton
Overland Park
Lenexa
Liberty
North Kansas City
Lansing
Lawrence
Olathe
Shawnee

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ontario to Kansas City

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Ontario to Kansas City

Discover the top 5 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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$67Average$206FlexibilityNo cancel feeOn-time62%
DeltaCheapest$98Average$351FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$247Average$412FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$256Average$499FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$298Average$460FlexibilityNo cancel feeOn-time71%

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