$77+ Cheap flights from Kansas City to Ontario (MCI - ONT)
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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — ONT
Nov 2 — Nov 91
Round-trip
1 adult, Economy
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Find cheap flights from Kansas City to Ontario 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
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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 Kansas City to Ontario
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Cheapest flights from Kansas City to OntarioExplore 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 October 3, 2026.
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 October 3, 2026.
This Booking.com deal was found by Cheapflights users on 9/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:43 pm -
1 stop15h 59m
Mon 11/166:25 am -
1 stop11h 22m
Deal found 9/29![Frontier logo]()
$136
This Expedia deal was found by Cheapflights users on 9/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/68:43 pm -
1 stop15h 59m
Tue 11/106:25 am -
1 stop11h 22m
Deal found 9/30![Frontier logo]()
$168
This Frontier deal was found by Cheapflights users on 9/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:43 pm -
1 stop5h 08m
Mon 11/166:25 am -
1 stop11h 22m
Deal found 9/30![Frontier logo]()
$170
This Frontier deal was found by Cheapflights users on 9/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:43 pm -
1 stop5h 07m
Sat 10/3111:52 am -
1 stop5h 55m
Deal found 9/29![Frontier logo]()
$175
This Booking.com deal was found by Cheapflights users on 9/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:43 pm -
1 stop5h 07m
Tue 10/276:25 am -
1 stop11h 22m
Deal found 9/30![Frontier logo]()
$180
This Mytrip deal was found by Cheapflights users on 9/29. 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.
Fri 10/308:43 pm -
1 stop15h 59m
Wed 11/46:25 am -
1 stop11h 22m
Deal found 9/29![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:43 pm -
1 stop15h 52m
Wed 11/46:25 am -
1 stop11h 22m
Deal found 10/1![Frontier logo]()
$182
This Expedia deal was found by Cheapflights users on 9/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:43 pm -
1 stop15h 59m
Sat 10/3111:52 am -
1 stop5h 55m
Deal found 9/29![Frontier logo]()
$185
This Trip.com deal was found by Cheapflights users on 9/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:43 pm -
1 stop5h 07m
Wed 10/286:25 am -
1 stop11h 22m
Deal found 9/29![Frontier logo]()
$193
This Booking.com deal was found by Cheapflights users on 10/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/118:43 pm -
1 stop5h 08m
Sat 11/1411:52 am -
1 stop5h 55m
Deal found 10/1![Frontier logo]()
$194
This Mytrip deal was found by Cheapflights users on 9/30. 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.
Mon 11/168:43 pm -
1 stop15h 52m
Mon 11/235:01 am -
1 stop12h 33m
Deal found 9/30![Frontier logo]()
$196
This Frontier deal was found by Cheapflights users on 9/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:43 pm -
1 stop5h 08m
Tue 11/1711:52 am -
1 stop5h 55m
Deal found 9/30![Frontier logo]()
$200
Best flights from Kansas City to OntarioDiscover carefully curated flight deals from Kansas City to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 3, 2026.
Discover carefully curated flight deals from Kansas City to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 3, 2026.
This Delta deal was found by Cheapflights users on 10/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:45 am -
1 stop6h 51m
Wed 10/289:45 am -
1 stop5h 22m
Deal found 10/1![Delta logo]()
$372
This Booking.com deal was found by Cheapflights users on 10/3. 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 10/178:43 pm -
1 stop5h 07m
Wed 10/2111:52 am -
1 stop5h 56m
Deal found 10/3![Frontier logo]()
$378
This United Airlines deal was found by Cheapflights users on 10/3. 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.
Fri 11/206:03 pm -
1 stop6h 45m
Sun 11/225:00 am -
2 stops9h 34m
Deal found 10/3![United Airlines logo]()
$456
This Southwest deal was found by Cheapflights users on 10/2. 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.
Fri 1/154:30 pm -
1 stop5h 50m
Mon 1/185:05 am -
1 stop5h 25m
Deal found 10/2![Southwest logo]()
$477
This Delta deal was found by Cheapflights users on 9/30. 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 3/205:40 am -
1 stop7h 47m
Sat 3/2712:00 pm -
1 stop9h 58m
Deal found 9/30![Delta logo]()
$393
This Delta deal was found by Cheapflights users on 9/30. 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 3/205:40 am -
1 stop7h 47m
Sun 3/287:00 am -
1 stop8h 32m
Deal found 9/30![Delta logo]()
$435
This United Airlines deal was found by Cheapflights users on 9/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/219:00 am -
1 stop5h 46m
Tue 10/279:25 am -
2 stops12h 27m
Deal found 9/29![United Airlines logo]()
$486
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Thu 11/57:00 am -
1 stop7h 29m
Mon 11/166:37 pm -
2 stops12h 21m
Deal found 9/30![United Airlines logo]()
$486
This Delta deal was found by Cheapflights users on 9/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/195:40 am -
1 stop7h 47m
Sat 3/2712:00 pm -
1 stop9h 58m
Deal found 9/29![Delta logo]()
$467
This United Airlines deal was found by Cheapflights users on 9/30. 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 11/85:45 am -
2 stops8h 44m
Mon 11/161:35 pm -
1 stop6h 40m
Deal found 9/30![United Airlines logo]()
$504
Last-minute flights from Kansas City to OntarioDiscover last-minute flight deals from Kansas City to Ontario. Data last updated October 3, 2026 and is based on user searches.
Discover last-minute flight deals from Kansas City to Ontario. Data last updated October 3, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 9/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:43 pm -
1 stop5h 07m
Sat 10/3111:52 am -
1 stop5h 55m
Deal found 9/29![Frontier logo]()
$175
This Trip.com deal was found by Cheapflights users on 9/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:43 pm -
1 stop5h 07m
Wed 10/286:25 am -
1 stop11h 22m
Deal found 9/29![Frontier logo]()
$193
This Booking.com deal was found by Cheapflights users on 9/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:43 pm -
1 stop5h 07m
Tue 10/276:25 am -
1 stop11h 22m
Deal found 9/30![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:43 pm -
1 stop15h 52m
Wed 11/46:25 am -
1 stop11h 22m
Deal found 10/1![Frontier logo]()
$182
This Mytrip deal was found by Cheapflights users on 9/29. 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.
Fri 10/308:43 pm -
1 stop15h 59m
Wed 11/46:25 am -
1 stop11h 22m
Deal found 9/29![Frontier logo]()
$181
This Expedia deal was found by Cheapflights users on 9/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:43 pm -
1 stop15h 59m
Sat 10/3111:52 am -
1 stop5h 55m
Deal found 9/29![Frontier logo]()
$185
This Expedia deal was found by Cheapflights users on 9/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/68:43 pm -
1 stop15h 59m
Tue 11/106:25 am -
1 stop11h 22m
Deal found 9/30![Frontier logo]()
$168
This Frontier deal was found by Cheapflights users on 9/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:43 pm -
1 stop5h 08m
Mon 11/166:25 am -
1 stop11h 22m
Deal found 9/30![Frontier logo]()
$170
This Frontier deal was found by Cheapflights users on 9/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:43 pm -
1 stop5h 08m
Tue 11/1711:52 am -
1 stop5h 55m
Deal found 9/30![Frontier logo]()
$200
This Booking.com deal was found by Cheapflights users on 10/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/118:43 pm -
1 stop5h 08m
Sat 11/1411:52 am -
1 stop5h 55m
Deal found 10/1![Frontier logo]()
$194
This Booking.com deal was found by Cheapflights users on 9/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:43 pm -
1 stop15h 59m
Mon 11/166:25 am -
1 stop11h 22m
Deal found 9/29![Frontier logo]()
$136
This Mytrip deal was found by Cheapflights users on 9/30. 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.
Mon 11/168:43 pm -
1 stop15h 52m
Mon 11/235:01 am -
1 stop12h 33m
Deal found 9/30![Frontier logo]()
$196
One-way flights from Kansas City to OntarioSearch for one-way flight options from Kansas City to Ontario. Find affordable one-way fares based on user searches. Data last updated October 3, 2026.
Search for one-way flight options from Kansas City to Ontario. Find affordable one-way fares based on user searches. Data last updated October 3, 2026.
This Super.com deal was found by Cheapflights users on 9/30. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/268:43 pm -
1 stop5h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Frontier logo]()
$77
This Frontier deal was found by Cheapflights users on 9/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/278:43 pm -
1 stop5h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 9/29. 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.
Tue 10/208:43 pm -
1 stop15h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Frontier logo]()
$85
This Booking.com deal was found by Cheapflights users on 10/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/218:43 pm -
1 stop5h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Frontier logo]()
$93
This Super.com deal was found by Cheapflights users on 10/1. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/318:43 pm -
1 stop5h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Frontier logo]()
$95
This Booking.com deal was found by Cheapflights users on 10/2. 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.
Wed 11/48:43 pm -
1 stop5h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![Frontier logo]()
$97
This Booking.com deal was found by Cheapflights users on 9/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:43 pm -
1 stop5h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Frontier logo]()
$98
This Trip.com deal was found by Cheapflights users on 10/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/268:31 pm -
1 stop5h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Frontier logo]()
$99
This Jetabroad deal was found by Cheapflights users on 9/30. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/48:29 pm -
1 stop16h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Frontier logo]()
$100
Find flight deals from Kansas City to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Kansas City (MCI) to Ontario (ONT). 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 October 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $136 (Booking.com) |
One-way from | $77 (Super.com) |
Popular in | May |
Cheapest in | October |
Average price | $293 |
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 7,457,451 searches. Data last updated October 3, 2026.
Use the filters below to find and compare flights from Kansas City to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Kansas CityOntario
MCI Kansas City - ONT Ontario
MCIONT
Kansas City
Tue 10/20
8:43 pm-7:40 pm
2 stops48h 57m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$105
Kansas CityOntario
MCI Kansas City - ONT Ontario
MCIONT
Kansas City
Mon 11/2
8:43 pm-11:51 pm
1 stop5h 08m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$114
Kansas CityOntario
MCI Kansas City - ONT Ontario
MCIONT
Kansas City
Wed 12/2
8:29 pm-10:45 am
1 stop16h 16m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$126
Kansas CityOntario
MCI Kansas City - ONT Ontario
MCIONT
Kansas City
Thu 10/29
5:59 pm-11:55 pm
1 stop7h 56m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$186
Kansas CityOntario
MCI Kansas City - ONT Ontario
MCIONT
Kansas City
Sat 11/21
6:25 pm-11:45 pm
1 stop7h 20m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$186
Kansas CityOntario
MCI Kansas City - ONT Ontario
MCIONT
Kansas City
Wed 10/14
8:43 pm-11:50 pm
1 stop5h 07m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$189
Quickest round-trip
Kansas CityOntario
MCI Kansas City - ONT Ontario
MCIONT
Kansas City
Sun 11/22
8:40 pm-11:40 pm
1 stop5h 00m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$213
Kansas CityOntario
MCI Kansas City - ONT Ontario
MCIONT
Kansas City
Mon 11/16
5:20 pm-8:51 pm
1 stop5h 31m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$241
Kansas CityOntario
MCI Kansas City - ONT Ontario
MCIONT
Kansas City
Fri 10/30
7:45 am-12:36 pm
1 stop6h 51m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$241
Kansas CityOntario
MCI Kansas City - ONT Ontario
MCIONT
Kansas City
Wed 12/2
1:36 pm-8:38 pm
2 stops9h 02m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$246
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Kansas City to Ontario
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 Kansas City to Ontario in October.
| 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 Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Kansas City-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kansas City-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kansas City-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Kansas City-Ontario 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 Kansas City-Ontario 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 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.
MCI-ONT
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 Ontario?
Currently, October is the cheapest month in which you can book a flight from Kansas City to Ontario (average of $293). Flying from Kansas City to Ontario in May is currently the most expensive (average of $497). 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 Kansas City to Ontario?
Airfare is below average for this route at the moment.
Kansas City to Ontario flights typically cost between $256 and $374 in November.The cheapest round-trip price found within the last 5 days was $136 on Frontier (Nov 13-Nov 16).
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 October 3, 2026.
Peruse reviews from past customers who have flown with Southwest,United Airlines, andAmerican Airlines from Kansas City to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
7.9
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
7.9
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
7.9
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
7.9
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
7.9
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
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.
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Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 3, 2026.
Kansas City and Ontario flights
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Top 4 airlines flying from Kansas City to Ontario
Discover the top 4 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 7,457,451 searches. Data last updated October 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$125 | Average$298 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$248 | Average$406 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$256 | Average$433 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$284 | Average$380 | FlexibilityNo cancel fee | On-time69% |