$75+ Cheap flights from Kansas City to Ontario (MCI - ONT)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — ONT
Jun 9 — Jun 161
Round-trip
1 adult, Economy
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Find cheap flights from Kansas City to Ontario with Cheapflights
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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 May 10, 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 May 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 6/301:45 pm
MCI
- ONT
1 stop22h 20m
Frontier
Tue 7/76:00 am
ONT
- MCI
1 stop28h 55m
Frontier
Deal found 5/6![Frontier logo]()
$197
This Expedia deal was found by Cheapflights users on 5/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/22:34 pm
MCI
- ONT
1 stop21h 31m
Frontier
Tue 6/96:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Deal found 5/7![Frontier logo]()
$210
This Mytrip deal was found by Cheapflights users on 5/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/81:45 pm
MCI
- ONT
1 stop22h 18m
Frontier
Wed 7/153:40 pm
ONT
- MCI
1 stop19h 15m
Frontier
Deal found 5/7![Frontier logo]()
$219
This Frontier deal was found by Cheapflights users on 5/5. 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.
Sat 6/62:34 pm
MCI
- ONT
1 stop11h 15m
Frontier
Tue 6/96:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Deal found 5/5![Frontier logo]()
$224
This Frontier deal was found by Cheapflights users on 5/7. 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.
Thu 6/42:34 pm
MCI
- ONT
1 stop11h 15m
Frontier
Tue 6/96:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Deal found 5/7![Frontier logo]()
$230
This Trip.com deal was found by Cheapflights users on 5/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/151:45 pm
MCI
- ONT
1 stop22h 18m
Frontier
Sat 7/186:00 am
ONT
- MCI
1 stop4h 55m
Frontier
Deal found 5/8![Frontier logo]()
$235
This Booking.com deal was found by Cheapflights users on 5/9. 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 7/141:45 pm
MCI
- ONT
1 stop22h 18m
Frontier
Sat 7/186:00 am
ONT
- MCI
1 stop4h 55m
Frontier
Deal found 5/9![Frontier logo]()
$236
This Frontier deal was found by Cheapflights users on 5/9. 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 7/111:45 pm
MCI
- ONT
1 stop12h 05m
Frontier
Sat 7/186:00 am
ONT
- MCI
1 stop4h 55m
Frontier
Deal found 5/9![Frontier logo]()
$238
This Mytrip deal was found by Cheapflights users on 5/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/151:45 pm
MCI
- ONT
1 stop22h 18m
Frontier
Thu 7/163:40 pm
ONT
- MCI
1 stop19h 15m
Frontier
Deal found 5/8![Frontier logo]()
$240
This Booking.com deal was found by Cheapflights users on 5/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/141:45 pm
MCI
- ONT
1 stop22h 18m
Frontier
Fri 7/1710:49 am
ONT
- MCI
1 stop24h 06m
Frontier
Deal found 5/8![Frontier logo]()
$242
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 May 10, 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 May 10, 2026.
This Frontier deal was found by Cheapflights users on 5/9. 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.
Sun 6/72:34 pm
MCI
- ONT
1 stop11h 15m
Frontier
Tue 6/96:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Deal found 5/9![Frontier logo]()
$335
This Southwest deal was found by Cheapflights users on 5/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/246:55 am
MCI
- ONT
2 stops6h 25m
Southwest
Tue 7/2810:10 am
ONT
- MCI
2 stops9h 50m
Southwest
Deal found 5/5![Southwest logo]()
$435
This Delta deal was found by Cheapflights users on 5/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/277:40 pm
MCI
- ONT
1 stop5h 54m
Delta
Tue 6/96:00 am
ONT
- MCI
1 stop6h 00m
Delta
Deal found 5/9![Delta logo]()
$441
This United Airlines deal was found by Cheapflights users on 5/7. 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.
Sat 8/222:52 pm
MCI
- ONT
1 stop9h 07m
United Airlines
Mon 8/249:01 am
ONT
- MCI
2 stops12h 24m
United Airlines
Deal found 5/7![United Airlines logo]()
$500
This Frontier deal was found by Cheapflights users on 5/9. 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 5/302:34 pm
MCI
- ONT
1 stop11h 15m
Frontier
Sun 6/76:00 am
ONT
- MCI
1 stop5h 49m
Frontier
Deal found 5/9![Frontier logo]()
$420
This Southwest deal was found by Cheapflights users on 5/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/189:15 pm
MCI
- ONT
1 stop4h 50m
Southwest
Sun 7/54:50 pm
ONT
- MCI
1 stop5h 55m
Southwest
Deal found 5/5![Southwest logo]()
$456
This Frontier deal was found by Cheapflights users on 5/9. 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 5/272:34 pm
MCI
- ONT
1 stop11h 15m
Frontier
Sat 6/136:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Deal found 5/9![Frontier logo]()
$424
This Delta deal was found by Cheapflights users on 5/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/57:05 am
MCI
- ONT
1 stop7h 28m
Delta
Mon 6/810:00 pm
ONT
- MCI
1 stop9h 31m
Delta
Deal found 5/9![Delta logo]()
$467
This Southwest deal was found by Cheapflights users on 5/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/298:20 pm
MCI
- ONT
1 stop4h 45m
Southwest
Sun 5/316:30 pm
ONT
- MCI
1 stop5h 20m
Southwest
Deal found 5/6![Southwest logo]()
$466
This Delta deal was found by Cheapflights users on 5/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:40 pm
MCI
- ONT
1 stop5h 54m
Delta
Sun 5/311:35 pm
ONT
- MCI
1 stop7h 35m
Delta
Deal found 5/9![Delta logo]()
$471
This Southwest deal was found by Cheapflights users on 5/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/111:35 am
MCI
- ONT
2 stops6h 45m
Southwest
Mon 8/312:45 pm
ONT
- MCI
2 stops8h 35m
Southwest
Deal found 5/6![Southwest logo]()
$486
This Delta deal was found by Cheapflights users on 5/6. 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.
Thu 5/216:40 am
MCI
- ONT
1 stop7h 39m
Delta
Thu 5/281:35 pm
ONT
- MCI
1 stop7h 35m
Delta
Deal found 5/6![Delta logo]()
$496
Last-minute flights from Kansas City to OntarioDiscover last-minute flight deals from Kansas City to Ontario. Data last updated May 10, 2026 and is based on user searches.
Discover last-minute flight deals from Kansas City to Ontario. Data last updated May 10, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 5/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/282:34 pm
MCI
- ONT
1 stop11h 15m
Frontier
Wed 6/36:00 am
ONT
- MCI
1 stop5h 49m
Frontier
Deal found 5/7![Frontier logo]()
$258
This Mytrip deal was found by Cheapflights users on 5/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/302:34 pm
MCI
- ONT
1 stop11h 15m
Frontier
Tue 6/210:50 am
ONT
- MCI
1 stop24h 59m
Frontier
Deal found 5/5![Frontier logo]()
$250
This Expedia deal was found by Cheapflights users on 5/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/22:34 pm
MCI
- ONT
1 stop21h 31m
Frontier
Tue 6/96:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Deal found 5/7![Frontier logo]()
$210
This Frontier deal was found by Cheapflights users on 5/7. 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.
Thu 6/42:34 pm
MCI
- ONT
1 stop11h 15m
Frontier
Tue 6/96:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Deal found 5/7![Frontier logo]()
$230
This Expedia deal was found by Cheapflights users on 5/5. 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.
Thu 6/42:34 pm
MCI
- ONT
1 stop11h 15m
Frontier
Sat 6/136:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Deal found 5/5![Frontier logo]()
$238
This Frontier deal was found by Cheapflights users on 5/5. 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.
Sat 6/62:34 pm
MCI
- ONT
1 stop11h 15m
Frontier
Tue 6/96:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Deal found 5/5![Frontier logo]()
$224
This Frontier deal was found by Cheapflights users on 5/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/131:45 pm
MCI
- ONT
1 stop12h 04m
Frontier
Thu 6/256:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Deal found 5/8![Frontier logo]()
$244
This Mytrip deal was found by Cheapflights users on 5/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/161:45 pm
MCI
- ONT
1 stop22h 20m
Frontier
Tue 6/236:00 am
ONT
- MCI
1 stop5h 00m
Frontier
Deal found 5/6![Frontier logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/231:45 pm
MCI
- ONT
1 stop12h 04m
Frontier
Wed 7/13:34 pm
ONT
- MCI
2 stops19h 26m
Frontier
Deal found 5/7![Frontier logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 6/301:45 pm
MCI
- ONT
1 stop22h 20m
Frontier
Tue 7/76:00 am
ONT
- MCI
1 stop28h 55m
Frontier
Deal found 5/6![Frontier logo]()
$197
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 May 10, 2026.
Search for one-way flight options from Kansas City to Ontario. Find affordable one-way fares based on user searches. Data last updated May 10, 2026.
This Trip.com deal was found by Cheapflights users on 5/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/32:34 pm
MCI
- ONT
1 stop11h 15m
Frontier
Deal found 5/5![Frontier logo]()
$75
This Trip.com deal was found by Cheapflights users on 5/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/251:45 pm
MCI
- ONT
1 stop12h 04m
Frontier
Deal found 5/8![Frontier logo]()
$76
This Super.com deal was found by Cheapflights users on 5/9. 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.
Tue 7/141:45 pm
MCI
- ONT
1 stop22h 18m
Frontier
Deal found 5/9![Frontier logo]()
$110
This Frontier deal was found by Cheapflights users on 5/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/91:45 pm
MCI
- ONT
1 stop12h 04m
Frontier
Deal found 5/8![Frontier logo]()
$111
This Jettzy deal was found by Cheapflights users on 5/7. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:45 pm
MCI
- ONT
1 stop22h 20m
Frontier
Deal found 5/7![Frontier logo]()
$112
This Trip.com deal was found by Cheapflights users on 5/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/261:45 pm
MCI
- ONT
1 stop22h 20m
Frontier
Deal found 5/8![Frontier logo]()
$114
This Trip.com deal was found by Cheapflights users on 5/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/62:34 pm
MCI
- ONT
1 stop11h 15m
Frontier
Deal found 5/5![Frontier logo]()
$115
This Booking.com deal was found by Cheapflights users on 5/9. 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 7/151:45 pm
MCI
- ONT
1 stop22h 18m
Frontier
Deal found 5/9![Frontier logo]()
$116
This Super.com deal was found by Cheapflights users on 5/9. 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.
Mon 8/101:50 pm
MCI
- ONT
1 stop8h 03m
Frontier
Deal found 5/9![Frontier logo]()
$118
This Frontier deal was found by Cheapflights users on 5/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/131:50 pm
MCI
- ONT
1 stop8h 03m
Frontier
Deal found 5/8![Frontier logo]()
$119
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 May 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $197 (Kiwi.com) |
One-way from | $75 (Trip.com) |
Popular in | December |
Cheapest in | October |
Average price | $400 |
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 2,558,603 searches. Data last updated May 10, 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 - ONT
MCIONT
Kansas City
Sun 6/7
2:34 pm-11:49 pm
1 stop11h 15m
Ontario
Tue 6/9
6:00 am-1:00 pm
1 stop5h 00m
$335
Kansas CityOntario
MCI - ONT
MCIONT
Kansas City
Sat 5/30
2:34 pm-11:49 pm
1 stop11h 15m
Ontario
Sun 6/7
6:00 am-1:49 pm
1 stop5h 49m
$420
Kansas CityOntario
MCI - ONT
MCIONT
Kansas City
Wed 5/27
2:34 pm-11:49 pm
1 stop11h 15m
Ontario
Sat 6/13
6:00 am-1:00 pm
1 stop5h 00m
$424
Kansas CityOntario
MCI - ONT
MCIONT
Kansas City
Fri 7/24
6:55 am-11:20 am
2 stops6h 25m
Ontario
Tue 7/28
10:10 am-10:00 pm
2 stops9h 50m
$435
Kansas CityOntario
MCI - ONT
MCIONT
Kansas City
Wed 5/27
7:40 pm-11:34 pm
1 stop5h 54m
Ontario
Tue 6/9
6:00 am-2:00 pm
1 stop6h 00m
$441
Kansas CityOntario
MCI - ONT
MCIONT
Kansas City
Thu 6/18
9:15 pm-12:05 am
1 stop4h 50m
Ontario
Sun 7/5
4:50 pm-12:45 am
1 stop5h 55m
$456
Quickest round-trip
Kansas CityOntario
MCI - ONT
MCIONT
Kansas City
Fri 5/29
8:20 pm-11:05 pm
1 stop4h 45m
Ontario
Sun 5/31
6:30 pm-1:50 am
1 stop5h 20m
$466
Kansas CityOntario
MCI - ONT
MCIONT
Kansas City
Fri 6/5
7:05 am-12:33 pm
1 stop7h 28m
Ontario
Mon 6/8
10:00 pm-9:31 am
1 stop9h 31m
$467
Kansas CityOntario
MCI - ONT
MCIONT
Kansas City
Thu 5/28
7:40 pm-11:34 pm
1 stop5h 54m
Ontario
Sun 5/31
1:35 pm-11:10 pm
1 stop7h 35m
$471
Kansas CityOntario
MCI - ONT
MCIONT
Kansas City
Sat 8/1
11:35 am-4:20 pm
2 stops6h 45m
Ontario
Mon 8/3
12:45 pm-11:20 pm
2 stops8h 35m
$486
Showing 1-10 of 23 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 May.
| 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 | |
| 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
Prices
More
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 $306). Flying from Kansas City to Ontario in December is currently the most expensive (average of $439). 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?
What’s the top layover airport for flights from Kansas City to Ontario?
Share of 1-stop round-trip flights from Kansas City to Ontario 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 Kansas City to Ontario on Cheapflights.
What’s the cheapest layover airport for flights from Kansas City to Ontario?
Average round-trip fare for 1-stop flights from Kansas City to Ontario, 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 $163.
What’s the fastest layover option from Kansas City to Ontario?
Shortest average travel time for 1-stop one-way flights from Kansas City to Ontario, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Phoenix (PHX) have the shortest average one-way travel time for 1-stop routes: 4h 55m.
Which airport typically offers the quickest layover for flights from Kansas City to Ontario?
Average layover duration for 1-stop one-way flights from Kansas City to Ontario, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Phoenix (PHX) offer the fastest connection on this route, with an average layover time of 1h 03m.
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 May 10, 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.
Boarding
8.1
Entertainment
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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 May 10, 2026.
Kansas City and Ontario flights
Browse other Kansas City and Ontario flight options. Last updated on May 10, 2026.
Popular flight searches
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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 2,558,603 searches. Data last updated May 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$94 | Average$240 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$253 | Average$401 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$269 | Average$382 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$284 | Average$387 | FlexibilityNo cancel fee | On-time71% |