$87+ Cheap flights from Ontario to Kansas City (ONT - MCI)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MCI
Oct 5 — Oct 121
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Kansas City 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 Ontario to Kansas City
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Best
Last-minute
One-way
Cheapest flights from Ontario to Kansas CityExplore 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 September 5, 2026.
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 September 5, 2026.
This Expedia deal was found by Cheapflights users on 9/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/711:45 am -
1 stop5h 52m
Wed 10/148:43 pm -
1 stop5h 07m
Deal found 9/3![Frontier logo]()
$179
This Booking.com deal was found by Cheapflights users on 9/4. 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.
Wed 10/2111:52 am -
1 stop5h 56m
Sat 10/248:43 pm -
1 stop5h 07m
Deal found 9/4![Frontier logo]()
$180
This Gotogate deal was found by Cheapflights users on 9/4. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:15 am -
1 stop11h 22m
Tue 10/68:32 pm -
1 stop5h 15m
Deal found 9/4![Frontier logo]()
$186
This Travelocity deal was found by Cheapflights users on 9/1. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:15 am -
1 stop11h 22m
Fri 9/258:32 pm -
1 stop15h 58m
Deal found 9/1![Frontier logo]()
$191
This Booking.com deal was found by Cheapflights users on 9/3. 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.
Sat 10/176:15 am -
1 stop11h 33m
Wed 10/218:43 pm -
1 stop5h 07m
Deal found 9/3![Frontier logo]()
$196
This Flightnetwork deal was found by Cheapflights users on 9/2. 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.
Thu 9/2411:45 am -
1 stop5h 52m
Wed 9/308:32 pm -
1 stop5h 15m
Deal found 9/2![Frontier logo]()
$199
This Expedia deal was found by Cheapflights users on 9/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:45 am -
1 stop5h 52m
Mon 10/58:32 pm -
1 stop15h 58m
Deal found 9/3![Frontier logo]()
$200
This Gotogate deal was found by Cheapflights users on 9/3. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:52 am -
1 stop5h 56m
Wed 10/288:43 pm -
1 stop5h 08m
Deal found 9/3![Frontier logo]()
$218
This Booking.com deal was found by Cheapflights users on 9/2. 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.
Thu 10/811:52 am -
1 stop5h 56m
Sat 10/108:43 pm -
1 stop5h 07m
Deal found 9/2![Frontier logo]()
$220
This Expedia deal was found by Cheapflights users on 9/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:00 am -
1 stop11h 45m
Sat 9/268:32 pm -
1 stop5h 15m
Deal found 9/2![Frontier logo]()
$226
Best flights from Ontario to Kansas CityDiscover carefully curated flight deals from Ontario to Kansas City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 5, 2026.
Discover carefully curated flight deals from Ontario to Kansas City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 5, 2026.
This United Airlines deal was found by Cheapflights users on 8/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/149:25 am -
2 stops10h 26m
Sat 11/215:20 pm -
1 stop5h 31m
Deal found 8/31![United Airlines logo]()
$387
This Southwest deal was found by Cheapflights users on 9/3. 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.
Thu 11/1912:50 pm -
2 stops6h 30m
Thu 11/266:15 am -
2 stops6h 55m
Deal found 9/3![Southwest logo]()
$433
This United Airlines deal was found by Cheapflights users on 8/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/35:00 am -
1 stop5h 52m
Sat 2/69:17 am -
1 stop5h 16m
Deal found 8/31![United Airlines logo]()
$461
This Southwest deal was found by Cheapflights users on 9/3. 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.
Wed 10/75:50 am -
2 stops8h 00m
Wed 10/142:35 pm -
2 stops8h 15m
Deal found 9/3![Southwest logo]()
$480
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Sat 10/2411:10 am -
2 stops10h 05m
Thu 10/2911:27 am -
2 stops10h 48m
Deal found 9/3![United Airlines logo]()
$472
This Southwest deal was found by Cheapflights users on 9/2. 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.
Thu 9/245:15 am -
2 stops8h 20m
Sat 9/261:10 pm -
2 stops8h 40m
Deal found 9/2![Southwest logo]()
$483
This Southwest deal was found by Cheapflights users on 9/4. 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.
Thu 12/2410:05 am -
1 stop5h 40m
Tue 12/295:55 am -
2 stops8h 30m
Deal found 9/4![Southwest logo]()
$484
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Wed 10/211:24 pm -
1 stop5h 20m
Sat 10/2411:22 am -
2 stops13h 29m
Deal found 9/4![United Airlines logo]()
$488
This Southwest deal was found by Cheapflights users on 8/31. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/222:40 pm -
2 stops7h 15m
Sun 10/256:25 am -
2 stops7h 45m
Deal found 8/31![Southwest logo]()
$489
Last-minute flights from Ontario to Kansas CityDiscover last-minute flight deals from Ontario to Kansas City. Data last updated September 5, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Kansas City. Data last updated September 5, 2026 and is based on user searches.
This Travelocity deal was found by Cheapflights users on 9/1. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:15 am -
1 stop11h 22m
Fri 9/258:32 pm -
1 stop15h 58m
Deal found 9/1![Frontier logo]()
$191
This Flightnetwork deal was found by Cheapflights users on 9/2. 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.
Thu 9/2411:45 am -
1 stop5h 52m
Wed 9/308:32 pm -
1 stop5h 15m
Deal found 9/2![Frontier logo]()
$199
This Expedia deal was found by Cheapflights users on 9/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:00 am -
1 stop11h 45m
Sat 9/268:32 pm -
1 stop5h 15m
Deal found 9/2![Frontier logo]()
$226
This Gotogate deal was found by Cheapflights users on 9/4. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:15 am -
1 stop11h 22m
Tue 10/68:32 pm -
1 stop5h 15m
Deal found 9/4![Frontier logo]()
$186
This Expedia deal was found by Cheapflights users on 9/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:45 am -
1 stop5h 52m
Mon 10/58:32 pm -
1 stop15h 58m
Deal found 9/3![Frontier logo]()
$200
This Expedia deal was found by Cheapflights users on 9/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/711:45 am -
1 stop5h 52m
Wed 10/148:43 pm -
1 stop5h 07m
Deal found 9/3![Frontier logo]()
$179
This Booking.com deal was found by Cheapflights users on 9/2. 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.
Thu 10/811:52 am -
1 stop5h 56m
Sat 10/108:43 pm -
1 stop5h 07m
Deal found 9/2![Frontier logo]()
$220
This Booking.com deal was found by Cheapflights users on 9/3. 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.
Sat 10/176:15 am -
1 stop11h 33m
Wed 10/218:43 pm -
1 stop5h 07m
Deal found 9/3![Frontier logo]()
$196
This Booking.com deal was found by Cheapflights users on 9/4. 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.
Wed 10/2111:52 am -
1 stop5h 56m
Sat 10/248:43 pm -
1 stop5h 07m
Deal found 9/4![Frontier logo]()
$180
This Gotogate deal was found by Cheapflights users on 9/3. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:52 am -
1 stop5h 56m
Wed 10/288:43 pm -
1 stop5h 08m
Deal found 9/3![Frontier logo]()
$218
One-way flights from Ontario to Kansas CitySearch for one-way flight options from Ontario to Kansas City. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
Search for one-way flight options from Ontario to Kansas City. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
This Super.com deal was found by Cheapflights users on 9/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:52 am -
1 stop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$87
This Super.com deal was found by Cheapflights users on 9/4. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/711:52 am -
1 stop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$88
This Super.com deal was found by Cheapflights users on 9/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/711:45 am -
1 stop5h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$89
This Booking.com deal was found by Cheapflights users on 9/2. 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.
Sat 10/3111:52 am -
1 stop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$90
This Mytrip deal was found by Cheapflights users on 9/4. 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.
Tue 10/2711:52 am -
1 stop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$91
This Trip.com deal was found by Cheapflights users on 9/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/311:52 am -
1 stop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$92
This Trip.com deal was found by Cheapflights users on 9/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1411:52 am -
1 stop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$93
This Booking.com deal was found by Cheapflights users on 9/3. 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.
Tue 9/296:15 am -
1 stop11h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$95
This Trip.com deal was found by Cheapflights users on 9/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:25 am -
1 stop11h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$99
This Trip.com deal was found by Cheapflights users on 9/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:15 am -
1 stop11h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$100
This Booking.com deal was found by Cheapflights users on 9/2. 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.
Sat 9/2611:45 am -
1 stop5h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$101
This Trip.com deal was found by Cheapflights users on 9/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:25 am -
1 stop11h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$105
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 September 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $179 (Expedia) |
One-way from | $87 (Super.com) |
Popular in | June |
Cheapest in | February |
Average price | $370 |
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 7,457,451 searches. Data last updated September 5, 2026.
Use the filters below to find and compare flights from Ontario to Kansas City that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioKansas City
ONT Ontario - MCI Kansas City
ONTMCI
Ontario
Wed 10/21
12:16 pm-11:56 pm
1 stop9h 40m
Kansas City
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$194
OntarioKansas City
ONT Ontario - MCI Kansas City
ONTMCI
Ontario
Fri 10/23
11:15 pm-9:28 am
1 stop8h 13m
Kansas City
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$212
Quickest round-trip
OntarioKansas City
ONT Ontario - MCI Kansas City
ONTMCI
Ontario
Thu 2/18
5:00 am-12:52 pm
1 stop5h 52m
Kansas City
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$231
OntarioKansas City
ONT Ontario - MCI Kansas City
ONTMCI
Ontario
Wed 2/24
5:00 am-12:52 pm
1 stop5h 52m
Kansas City
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$231
OntarioKansas City
ONT Ontario - MCI Kansas City
ONTMCI
Ontario
Wed 2/17
6:45 am-4:19 pm
1 stop7h 34m
Kansas City
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$231
OntarioKansas City
ONT Ontario - MCI Kansas City
ONTMCI
Ontario
Tue 2/16
1:00 pm-8:52 pm
1 stop5h 52m
Kansas City
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$231
OntarioKansas City
ONT Ontario - MCI Kansas City
ONTMCI
Ontario
Sat 2/27
1:00 pm-8:52 pm
1 stop5h 52m
Kansas City
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$231
OntarioKansas City
ONT Ontario - MCI Kansas City
ONTMCI
Ontario
Wed 2/3
1:00 pm-8:52 pm
1 stop5h 52m
Kansas City
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$231
OntarioKansas City
ONT Ontario - MCI Kansas City
ONTMCI
Ontario
Tue 1/26
11:20 am-7:27 pm
1 stop6h 07m
Kansas City
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$231
OntarioKansas City
ONT Ontario - MCI Kansas City
ONTMCI
Ontario
Sat 10/24
11:10 am-11:15 pm
2 stops10h 05m
Kansas City
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$236
Showing 1-10 of 20 resultsSorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- 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 FlightHub the most. FlightHub 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.
ONT-MCI
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
Prices
More
How far ahead should I book a flight from Ontario to Kansas City?
Booking 86 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, February is the cheapest month in which you can book a flight from Ontario to Kansas City (average of $301). Flying from Ontario to Kansas City in June is currently the most expensive (average of $493). 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 Ontario to Kansas City?
Airfare is below average for this route at the moment.
Ontario to Kansas City flights typically cost between $194 and $676 in October.The cheapest round-trip price found within the last 5 days was $179 on Frontier (Oct 7-Oct 14).
What’s the top layover airport for flights from Ontario to Kansas City?
Share of 1-stop round-trip flights from Ontario to Kansas City chosen by Cheapflights users in the past 12 months, using the same layover each way.
Denver (DEN) – chosen by Cheapflights users on 67% of 1-stop itineraries from Ontario to Kansas City on Cheapflights.
What’s the cheapest layover airport for flights from Ontario to Kansas City?
Average round-trip fare for 1-stop flights from Ontario to Kansas City, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $408.
What’s the fastest layover option from Ontario to Kansas City?
Shortest average travel time for 1-stop one-way flights from Ontario to Kansas City, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Las Vegas (LAS) have the shortest average one-way travel time for 1-stop routes: 4h 50m.
Which airport typically offers the quickest layover for flights from Ontario to Kansas City?
Average layover duration for 1-stop one-way flights from Ontario to Kansas City, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Las Vegas (LAS) offer the fastest connection on this route, with an average layover time of 0h 48m.
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 September 5, 2026.
See what other customers who have flown with Southwest,Delta, andUnited 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.
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
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.
Traveling to a place near Kansas City?
Book flights to Kansas City if you plan to visit one of these locationsLee's Summit
Kansas City
Independence
Overland Park
Warrensburg
Lenexa
North Kansas City
Lansing
Liberty
Lawrence
Shawnee
Olathe
Belton
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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 7,457,451 searches. Data last updated September 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$145 | Average$297 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$236 | Average$684 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$243 | Average$437 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$281 | Average$481 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$301 | Average$493 | FlexibilityNo cancel fee | On-time71% |