$103+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MCI
Jul 10 — Jul 171
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
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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 Ontario to Kansas City
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Best
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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 June 10, 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 June 10, 2026.
This Frontier deal was found by Cheapflights users on 6/9. 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 9/16:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Wed 9/21:45 pm
MCI
- ONT
1 stop12h 04m
Frontier
Deal found 6/9![Frontier logo]()
$240
This Expedia deal was found by Cheapflights users on 6/9. 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 8/206:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Tue 8/251:45 pm
MCI
- ONT
1 stop12h 04m
Frontier
Deal found 6/9![Frontier logo]()
$242
This Expedia deal was found by Cheapflights users on 6/5. 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 7/81:38 pm
ONT
- MCI
1 stop24h 09m
Frontier
Sat 7/111:45 pm
MCI
- ONT
1 stop22h 19m
Frontier
Deal found 6/5![Frontier logo]()
$244
This Booking.com deal was found by Cheapflights users on 6/6. 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 7/710:49 am
ONT
- MCI
1 stop24h 11m
Frontier
Sat 7/111:45 pm
MCI
- ONT
1 stop22h 19m
Frontier
Deal found 6/6![Frontier logo]()
$246
This CheapOair deal was found by Cheapflights users on 6/9. 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 8/191:27 pm
ONT
- MCI
1 stop21h 28m
Frontier
Wed 8/261:45 pm
MCI
- ONT
1 stop12h 04m
Frontier
Deal found 6/9![Frontier logo]()
$250
This CheapOair deal was found by Cheapflights users on 6/9. 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 8/125:08 pm
ONT
- MCI
1 stop20h 39m
Frontier
Sat 8/151:45 pm
MCI
- ONT
1 stop22h 19m
Frontier
Deal found 6/9![Frontier logo]()
$252
This CheapOair deal was found by Cheapflights users on 6/7. 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 8/51:38 pm
ONT
- MCI
1 stop24h 09m
Frontier
Sat 8/81:45 pm
MCI
- ONT
1 stop12h 05m
Frontier
Deal found 6/7![Frontier logo]()
$254
This Frontier deal was found by Cheapflights users on 6/9. 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 8/186:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Tue 8/251:45 pm
MCI
- ONT
1 stop12h 04m
Frontier
Deal found 6/9![Frontier logo]()
$255
This Frontier deal was found by Cheapflights users on 6/9. 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.
Wed 7/156:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Sat 7/181:45 pm
MCI
- ONT
1 stop12h 05m
Frontier
Deal found 6/9![Frontier logo]()
$257
This Frontier deal was found by Cheapflights users on 6/5. 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 8/186:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Wed 8/191:45 pm
MCI
- ONT
1 stop12h 04m
Frontier
Deal found 6/5![Frontier logo]()
$262
This CheapOair deal was found by Cheapflights users on 6/9. 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.
Tue 10/136:00 am
ONT
- MCI
1 stop5h 22m
Frontier
Tue 10/202:17 pm
MCI
- ONT
1 stop22h 26m
Frontier
Deal found 6/9![Frontier logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 8/46:00 am
ONT
- MCI
1 stop29h 00m
Frontier
Sun 8/91:45 pm
MCI
- ONT
1 stop22h 19m
Frontier
Deal found 6/5![Frontier logo]()
$266
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 June 10, 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 June 10, 2026.
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Tue 9/16:00 am
ONT
- MCI
1 stop6h 33m
United Airlines
Wed 9/210:00 am
MCI
- ONT
2 stops12h 01m
United Airlines
Deal found 6/9![United Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 6/7. 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.
Wed 11/255:05 pm
ONT
- MCI
1 stop5h 16m
Delta
Mon 11/307:40 pm
MCI
- ONT
1 stop6h 08m
Delta
Deal found 6/7![Delta logo]()
$425
This CheapOair deal was found by Cheapflights users on 6/9. 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.
Sat 7/116:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Sun 7/124:32 pm
MCI
- ONT
1 stop17h 31m
Frontier
Deal found 6/9![Frontier logo]()
$458
This Alaska Airlines deal was found by Cheapflights users on 6/6. 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.
Mon 12/77:30 am
ONT
- MCI
1 stop6h 28m
Alaska Airlines
Sun 12/137:00 am
MCI
- ONT
1 stop9h 47m
Alaska Airlines
Deal found 6/6![Alaska Airlines logo]()
$467
This Delta deal was found by Cheapflights users on 6/6. 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.
Mon 12/76:00 am
ONT
- MCI
1 stop5h 13m
Delta
Sat 12/127:40 pm
MCI
- ONT
1 stop6h 08m
Delta
Deal found 6/6![Delta logo]()
$435
This United Airlines deal was found by Cheapflights users on 6/9. 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 7/116:10 am
ONT
- MCI
1 stop9h 26m
United Airlines
Sun 7/129:10 am
MCI
- ONT
1 stop5h 37m
United Airlines
Deal found 6/9![United Airlines logo]()
$466
This Alaska Airlines deal was found by Cheapflights users on 6/6. 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.
Mon 12/77:30 am
ONT
- MCI
1 stop6h 28m
Alaska Airlines
Thu 12/175:00 pm
MCI
- ONT
1 stop8h 59m
Alaska Airlines
Deal found 6/6![Alaska Airlines logo]()
$500
This Frontier deal was found by Cheapflights users on 6/9. 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 6/266:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Sat 6/271:45 pm
MCI
- ONT
1 stop12h 04m
Frontier
Deal found 6/9![Frontier logo]()
$506
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Tue 8/181:18 pm
ONT
- MCI
1 stop5h 16m
United Airlines
Wed 8/1910:00 am
MCI
- ONT
2 stops12h 01m
United Airlines
Deal found 6/7![United Airlines logo]()
$522
Last-minute flights from Ontario to Kansas CityDiscover last-minute flight deals from Ontario to Kansas City. Data last updated June 10, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Kansas City. Data last updated June 10, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 6/9. 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 6/306:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Wed 7/11:45 pm
MCI
- ONT
1 stop12h 04m
Frontier
Deal found 6/9![Frontier logo]()
$270
This Booking.com deal was found by Cheapflights users on 6/5. 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 7/310:50 am
ONT
- MCI
1 stop24h 10m
Frontier
Tue 7/74:58 pm
MCI
- ONT
1 stop19h 06m
Frontier
Deal found 6/5![Frontier logo]()
$279
This Booking.com deal was found by Cheapflights users on 6/9. 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 7/46:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Wed 7/81:45 pm
MCI
- ONT
1 stop22h 19m
Frontier
Deal found 6/9![Frontier logo]()
$276
This Booking.com deal was found by Cheapflights users on 6/9. 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.
Mon 7/66:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Tue 7/141:45 pm
MCI
- ONT
1 stop22h 19m
Frontier
Deal found 6/9![Frontier logo]()
$277
This Booking.com deal was found by Cheapflights users on 6/7. 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.
Mon 7/66:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Wed 7/81:45 pm
MCI
- ONT
1 stop22h 19m
Frontier
Deal found 6/7![Frontier logo]()
$278
This Booking.com deal was found by Cheapflights users on 6/6. 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 7/710:49 am
ONT
- MCI
1 stop24h 11m
Frontier
Sat 7/111:45 pm
MCI
- ONT
1 stop22h 19m
Frontier
Deal found 6/6![Frontier logo]()
$246
This Expedia deal was found by Cheapflights users on 6/5. 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 7/81:38 pm
ONT
- MCI
1 stop24h 09m
Frontier
Sat 7/111:45 pm
MCI
- ONT
1 stop22h 19m
Frontier
Deal found 6/5![Frontier logo]()
$244
This Booking.com deal was found by Cheapflights users on 6/9. 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 7/146:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Tue 7/211:45 pm
MCI
- ONT
1 stop12h 05m
Frontier
Deal found 6/9![Frontier logo]()
$272
This Frontier deal was found by Cheapflights users on 6/9. 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.
Wed 7/156:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Sat 7/181:45 pm
MCI
- ONT
1 stop12h 05m
Frontier
Deal found 6/9![Frontier logo]()
$257
This Frontier deal was found by Cheapflights users on 6/7. 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 7/186:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Tue 7/211:45 pm
MCI
- ONT
1 stop12h 05m
Frontier
Deal found 6/7![Frontier logo]()
$284
This Booking.com deal was found by Cheapflights users on 6/5. 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 7/216:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Sat 7/251:45 pm
MCI
- ONT
1 stop22h 19m
Frontier
Deal found 6/5![Frontier logo]()
$273
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 June 10, 2026.
Search for one-way flight options from Ontario to Kansas City. Find affordable one-way fares based on user searches. Data last updated June 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 8/46:00 am
ONT
- MCI
1 stop29h 00m
Frontier
Deal found 6/6![Frontier logo]()
$103
This Frontier deal was found by Cheapflights users on 6/9. 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 8/116:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Deal found 6/9![Frontier logo]()
$120
This Super.com deal was found by Cheapflights users on 6/8. 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 8/126:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Deal found 6/8![Frontier logo]()
$121
This Frontier deal was found by Cheapflights users on 6/9. 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 8/156:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Deal found 6/9![Frontier logo]()
$122
This Super.com deal was found by Cheapflights users on 6/9. 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 9/21:27 pm
ONT
- MCI
1 stop21h 28m
Frontier
Deal found 6/9![Frontier logo]()
$125
This Super.com deal was found by Cheapflights users on 6/7. 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 7/153:40 pm
ONT
- MCI
1 stop22h 07m
Frontier
Deal found 6/7![Frontier logo]()
$126
This CheapOair deal was found by Cheapflights users on 6/5. 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.
Tue 8/256:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Deal found 6/5![Frontier logo]()
$127
This Booking.com deal was found by Cheapflights users on 6/9. 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 7/293:40 pm
ONT
- MCI
1 stop22h 07m
Frontier
Deal found 6/9![Frontier logo]()
$128
This CheapOair deal was found by Cheapflights users on 6/9. 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 8/51:38 pm
ONT
- MCI
1 stop24h 09m
Frontier
Deal found 6/9![Frontier logo]()
$131
This CheapOair deal was found by Cheapflights users on 6/9. 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 10/72:55 pm
ONT
- MCI
1 stop20h 27m
Frontier
Deal found 6/9![Frontier logo]()
$133
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 June 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $240 (Frontier) |
One-way from | $103 (Kiwi.com) |
Popular in | April |
Cheapest in | August |
Average price | $448 |
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 June 10, 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 - MCI
ONTMCI
Ontario
Tue 9/1
6:00 am-2:33 pm
1 stop6h 33m
Kansas City
Wed 9/2
10:00 am-8:01 pm
2 stops12h 01m
$394
OntarioKansas City
ONT - MCI
ONTMCI
Ontario
Wed 11/25
5:05 pm-12:21 am
1 stop5h 16m
Kansas City
Mon 11/30
7:40 pm-11:48 pm
1 stop6h 08m
$425
Quickest round-trip
OntarioKansas City
ONT - MCI
ONTMCI
Ontario
Mon 12/7
6:00 am-1:13 pm
1 stop5h 13m
Kansas City
Sat 12/12
7:40 pm-11:48 pm
1 stop6h 08m
$435
OntarioKansas City
ONT - MCI
ONTMCI
Ontario
Sat 7/11
6:00 am-1:00 pm
1 stop5h 00m
Kansas City
Sun 7/12
4:32 pm-8:03 am
1 stop17h 31m
$458
OntarioKansas City
ONT - MCI
ONTMCI
Ontario
Sat 7/11
6:10 am-5:36 pm
1 stop9h 26m
Kansas City
Sun 7/12
9:10 am-12:47 pm
1 stop5h 37m
$466
OntarioKansas City
ONT - MCI
ONTMCI
Ontario
Mon 12/7
7:30 am-3:58 pm
1 stop6h 28m
Kansas City
Sun 12/13
7:00 am-2:47 pm
1 stop9h 47m
$467
OntarioKansas City
ONT - MCI
ONTMCI
Ontario
Mon 12/7
7:30 am-3:58 pm
1 stop6h 28m
Kansas City
Thu 12/17
5:00 pm-11:59 pm
1 stop8h 59m
$500
OntarioKansas City
ONT - MCI
ONTMCI
Ontario
Fri 6/26
6:00 am-1:00 pm
1 stop5h 00m
Kansas City
Sat 6/27
1:45 pm-11:49 pm
1 stop12h 04m
$506
OntarioKansas City
ONT - MCI
ONTMCI
Ontario
Tue 8/18
1:18 pm-8:34 pm
1 stop5h 16m
Kansas City
Wed 8/19
10:00 am-8:01 pm
2 stops12h 01m
$522
Cheapest one-way
OntarioKansas City
ONT - MCI
ONTMCI
Ontario
Wed 7/8
6:00 am-1:57 pm
1 stop5h 57m
$196
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 June.
| 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 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
Delays
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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, August is the cheapest month in which you can book a flight from Ontario to Kansas City (average of $247). Flying from Ontario to Kansas City in April is currently the most expensive (average of $479). 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?
How often are flights from Ontario to Kansas City delayed?
About 0% of weekly flights between Ontario and Kansas City have experienced delays in the past year, with the average delay time being 0 minutes.
What is the most punctual flight time for Ontario to Kansas City flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
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 60% 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 $416.
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 June 10, 2026.
See what other customers who have flown with Southwest,Delta, andAmerican 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.
Crew
8.6
Overall
7.9
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Overall
7.9
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Overall
7.9
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Overall
7.9
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Overall
7.9
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
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
Belton
Warrensburg
Overland Park
Lenexa
North Kansas City
Lansing
Liberty
Lawrence
Shawnee
Olathe
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Search flights from Ontario to Kansas City by cabin class
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Ontario and Kansas City flights
Browse other Ontario and Kansas City flight options. Last updated on June 10, 2026.
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Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Ontario to Kansas City
Discover the top 4 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 June 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$98 | Average$346 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$130 | Average$266 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$246 | Average$418 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$259 | Average$430 | FlexibilityNo cancel fee | On-time71% |