$208+ Cheap flights from Kansas City (MCI) to Ontario
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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — YYZ
Jun 27 — Jul 41
Round-trip
1 adult, Economy
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Find cheap flights from Kansas City to Ontario with Cheapflights
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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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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 28, 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 28, 2026.
This United Airlines deal was found by Cheapflights users on 5/27. 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 6/207:53 am
MCI
- YOW
1 stop12h 42m
United Airlines
Tue 6/236:25 am
YOW
- MCI
1 stop6h 57m
United Airlines
Deal found 5/27![United Airlines logo]()
$505
This United Airlines deal was found by Cheapflights users on 5/27. 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.
Mon 6/155:45 pm
MCI
- YOW
1 stop5h 09m
United Airlines
Thu 6/185:50 pm
YOW
- MCI
1 stop7h 09m
United Airlines
Deal found 5/27![United Airlines logo]()
$560
This American Airlines deal was found by Cheapflights users on 5/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:15 am
MCI
- YYZ
1 stop9h 30m
American Airlines
Sat 8/297:29 am
YYZ
- MCI
1 stop8h 46m
American Airlines
Deal found 5/27![American Airlines logo]()
$593
This United Airlines deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/103:27 pm
MCI
- YOW
1 stop5h 38m
United Airlines
Fri 8/145:57 pm
YOW
- MCI
1 stop7h 02m
United Airlines
Deal found 5/26![United Airlines logo]()
$604
This American Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/235:33 am
MCI
- YYZ
1 stop10h 15m
American Airlines
Mon 7/61:17 pm
YYZ
- MCI
1 stop12h 02m
American Airlines
Deal found 5/25![American Airlines logo]()
$605
This United Airlines deal was found by Cheapflights users on 5/27. 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 7/1811:25 am
MCI
- YOW
2 stops11h 29m
United Airlines
Wed 7/226:25 am
YOW
- MCI
1 stop10h 35m
United Airlines
Deal found 5/27![United Airlines logo]()
$609
This United Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/85:45 pm
MCI
- YOW
1 stop5h 09m
United Airlines
Wed 8/126:00 am
YOW
- MCI
3 stops11h 12m
United Airlines
Deal found 5/25![United Airlines logo]()
$615
This Kiwi.com deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/146:07 pm
MCI
- YYZ
2 stops18h 58m
Multiple Airlines
Mon 8/177:00 am
YYZ
- MCI
1 stop9h 47m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$616
This Delta deal was found by Cheapflights users on 5/27. 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.
Tue 6/2310:35 am
MCI
- YYZ
1 stop9h 44m
Delta
Mon 7/66:15 am
YYZ
- MCI
1 stop7h 00m
Delta
Deal found 5/27![Delta logo]()
$618
This American Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/151:48 pm
MCI
- YYZ
1 stop8h 41m
American Airlines
Wed 6/1711:39 am
YYZ
- MCI
1 stop14h 09m
American Airlines
Deal found 5/25![American Airlines logo]()
$635
This American Airlines deal was found by Cheapflights users on 5/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:46 am
MCI
- YYZ
1 stop10h 39m
American Airlines
Mon 9/281:10 pm
YYZ
- MCI
1 stop8h 09m
American Airlines
Deal found 5/23![American Airlines logo]()
$641
This United Airlines deal was found by Cheapflights users on 5/27. 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 6/217:53 am
MCI
- YOW
1 stop12h 42m
United Airlines
Wed 6/246:25 am
YOW
- MCI
1 stop6h 57m
United Airlines
Deal found 5/27![United Airlines logo]()
$642
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 28, 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 28, 2026.
This United Airlines deal was found by Cheapflights users on 5/27. 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 6/207:53 am
MCI
- YOW
1 stop12h 42m
United Airlines
Tue 6/236:25 am
YOW
- MCI
1 stop6h 57m
United Airlines
Deal found 5/27![United Airlines logo]()
$505
This American Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/235:00 am
MCI
- YUL
1 stop17h 29m
American Airlines
Tue 6/305:33 pm
YUL
- MCI
1 stop16h 02m
American Airlines
Deal found 5/24![American Airlines logo]()
$680
This Delta deal was found by Cheapflights users on 5/23. 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 9/2312:21 pm
MCI
- YUL
1 stop10h 36m
Delta
Wed 9/309:30 am
YUL
- MCI
1 stop9h 04m
Delta
Deal found 5/23![Delta logo]()
$713
This Alaska Airlines deal was found by Cheapflights users on 5/27. 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 8/175:50 pm
MCI
- YYZ
2 stops44h 55m
Alaska Airlines
Thu 8/204:55 pm
YYZ
- MCI
2 stops20h 43m
Alaska Airlines
Deal found 5/27![Alaska Airlines logo]()
$1,111
This United Airlines deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/103:27 pm
MCI
- YOW
1 stop5h 38m
United Airlines
Fri 8/145:57 pm
YOW
- MCI
1 stop7h 02m
United Airlines
Deal found 5/26![United Airlines logo]()
$604
This United Airlines deal was found by Cheapflights users on 5/27. 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 7/186:05 am
MCI
- YOW
1 stop15h 00m
United Airlines
Wed 7/226:25 am
YOW
- MCI
1 stop5h 04m
United Airlines
Deal found 5/27![United Airlines logo]()
$604
This American Airlines deal was found by Cheapflights users on 5/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:03 am
MCI
- YUL
1 stop16h 51m
American Airlines
Sun 9/277:29 am
YUL
- MCI
1 stop17h 20m
American Airlines
Deal found 5/27![American Airlines logo]()
$704
This Delta deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1910:35 am
MCI
- YUL
1 stop7h 19m
Delta
Wed 6/246:50 pm
YUL
- MCI
1 stop6h 09m
Delta
Deal found 5/26![Delta logo]()
$721
This United Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/86:00 am
MCI
- YOW
1 stop10h 07m
United Airlines
Wed 8/126:05 am
YOW
- MCI
2 stops11h 07m
United Airlines
Deal found 5/25![United Airlines logo]()
$614
This American Airlines deal was found by Cheapflights users on 5/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:30 am
MCI
- YUL
1 stop10h 17m
American Airlines
Wed 8/512:30 pm
YUL
- MCI
1 stop13h 06m
American Airlines
Deal found 5/23![American Airlines logo]()
$712
This Delta deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/235:38 am
MCI
- YUL
2 stops12h 16m
Delta
Tue 6/309:30 am
YUL
- MCI
1 stop9h 31m
Delta
Deal found 5/24![Delta logo]()
$729
This American Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:02 am
MCI
- YUL
1 stop8h 23m
American Airlines
Fri 10/236:00 pm
YUL
- MCI
1 stop15h 26m
American Airlines
Deal found 5/25![American Airlines logo]()
$755
This Delta deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/135:40 am
MCI
- YUL
1 stop10h 25m
Delta
Fri 9/187:00 am
YUL
- MCI
1 stop9h 06m
Delta
Deal found 5/25![Delta logo]()
$784
This United Airlines deal was found by Cheapflights users on 5/27. 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 7/83:16 pm
MCI
- YTZ
1 stop17h 50m
United Airlines
Thu 7/2312:15 pm
YTZ
- MCI
1 stop10h 39m
United Airlines
Deal found 5/27![United Airlines logo]()
$777
This Delta deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:40 am
MCI
- YUL
2 stops12h 10m
Delta
Fri 10/236:00 am
YUL
- MCI
1 stop8h 19m
Delta
Deal found 5/25![Delta logo]()
$792
This Alaska Airlines deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/67:58 pm
MCI
- YYZ
2 stops15h 39m
Alaska Airlines
Tue 7/146:15 pm
YYZ
- MCI
2 stops30h 44m
Alaska Airlines
Deal found 5/26![Alaska Airlines logo]()
$1,131
This United Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:36 pm
MCI
- YTZ
1 stop14h 30m
United Airlines
Mon 9/77:20 pm
YTZ
- MCI
1 stop14h 38m
United Airlines
Deal found 5/25![United Airlines logo]()
$786
This Alaska Airlines deal was found by Cheapflights users on 5/27. 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.
Wed 7/87:58 pm
MCI
- YYZ
2 stops15h 39m
Alaska Airlines
Thu 7/236:19 pm
YYZ
- MCI
2 stops30h 40m
Alaska Airlines
Deal found 5/27![Alaska Airlines logo]()
$1,134
This Delta deal was found by Cheapflights users on 5/27. 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 6/35:45 pm
MCI
- YYZ
1 stop4h 29m
Delta
Mon 6/87:24 pm
YYZ
- MCI
1 stop5h 06m
Delta
Deal found 5/27![Delta logo]()
$858
This United Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:08 pm
MCI
- YUL
1 stop24h 15m
United Airlines
Wed 8/195:05 pm
YUL
- MCI
1 stop22h 45m
United Airlines
Deal found 5/24![United Airlines logo]()
$800
This American Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/311:35 pm
MCI
- YYZ
1 stop9h 23m
American Airlines
Wed 6/311:01 am
YYZ
- MCI
1 stop12h 13m
American Airlines
Deal found 5/24![American Airlines logo]()
$1,040
This Alaska Airlines deal was found by Cheapflights users on 5/23. 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.
Thu 7/95:50 pm
MCI
- YYZ
2 stops44h 55m
Alaska Airlines
Tue 7/144:55 pm
YYZ
- MCI
2 stops24h 58m
Alaska Airlines
Deal found 5/23![Alaska Airlines logo]()
$1,175
This United Airlines deal was found by Cheapflights users on 5/23. 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 10/308:00 am
MCI
- YTZ
1 stop7h 41m
United Airlines
Sat 10/3112:15 pm
YTZ
- MCI
1 stop10h 34m
United Airlines
Deal found 5/23![United Airlines logo]()
$803
This United Airlines deal was found by Cheapflights users on 5/27. 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 7/116:00 am
MCI
- YTZ
1 stop27h 06m
United Airlines
Sat 7/182:55 pm
YTZ
- MCI
2 stops20h 34m
United Airlines
Deal found 5/27![United Airlines logo]()
$819
This United Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:41 pm
MCI
- YYZ
1 stop4h 18m
United Airlines
Fri 7/1711:00 am
YYZ
- MCI
1 stop7h 36m
United Airlines
Deal found 5/25![United Airlines logo]()
$957
This United Airlines deal was found by Cheapflights users on 5/27. 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.
Mon 7/66:41 pm
MCI
- YYZ
1 stop4h 18m
United Airlines
Tue 7/149:35 am
YYZ
- MCI
1 stop6h 10m
United Airlines
Deal found 5/27![United Airlines logo]()
$957
Last-minute flights from Kansas City to OntarioDiscover last-minute flight deals from Kansas City to Ontario. Data last updated May 28, 2026 and is based on user searches.
Discover last-minute flight deals from Kansas City to Ontario. Data last updated May 28, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 5/27. 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.
Mon 6/155:45 pm
MCI
- YOW
1 stop5h 09m
United Airlines
Thu 6/185:50 pm
YOW
- MCI
1 stop7h 09m
United Airlines
Deal found 5/27![United Airlines logo]()
$560
This American Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/151:48 pm
MCI
- YYZ
1 stop8h 41m
American Airlines
Wed 6/1711:39 am
YYZ
- MCI
1 stop14h 09m
American Airlines
Deal found 5/25![American Airlines logo]()
$635
This American Airlines deal was found by Cheapflights users on 5/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/161:48 pm
MCI
- YYZ
1 stop8h 41m
American Airlines
Thu 6/181:15 pm
YYZ
- MCI
1 stop12h 33m
American Airlines
Deal found 5/27![American Airlines logo]()
$672
This American Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/161:48 pm
MCI
- YYZ
1 stop8h 41m
American Airlines
Fri 6/196:24 pm
YYZ
- MCI
1 stop15h 07m
American Airlines
Deal found 5/24![American Airlines logo]()
$683
This Kiwi.com deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/196:16 pm
MCI
- YYZ
2 stops18h 49m
Multiple Airlines
Sun 6/216:05 am
YYZ
- MCI
1 stop4h 43m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$646
This United Airlines deal was found by Cheapflights users on 5/27. 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 6/207:53 am
MCI
- YOW
1 stop12h 42m
United Airlines
Tue 6/236:25 am
YOW
- MCI
1 stop6h 57m
United Airlines
Deal found 5/27![United Airlines logo]()
$505
This United Airlines deal was found by Cheapflights users on 5/27. 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 6/217:53 am
MCI
- YOW
1 stop12h 42m
United Airlines
Wed 6/246:25 am
YOW
- MCI
1 stop6h 57m
United Airlines
Deal found 5/27![United Airlines logo]()
$642
This American Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/235:33 am
MCI
- YYZ
1 stop10h 15m
American Airlines
Mon 7/61:17 pm
YYZ
- MCI
1 stop12h 02m
American Airlines
Deal found 5/25![American Airlines logo]()
$605
This Delta deal was found by Cheapflights users on 5/27. 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.
Tue 6/2310:35 am
MCI
- YYZ
1 stop9h 44m
Delta
Mon 7/66:15 am
YYZ
- MCI
1 stop7h 00m
Delta
Deal found 5/27![Delta logo]()
$618
This American Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/235:00 am
MCI
- YUL
1 stop17h 29m
American Airlines
Tue 6/305:33 pm
YUL
- MCI
1 stop16h 02m
American Airlines
Deal found 5/24![American Airlines logo]()
$680
This Kiwi.com deal was found by Cheapflights users on 5/27. 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 6/246:16 pm
MCI
- YUL
2 stops23h 57m
Multiple Airlines
Wed 7/17:00 am
YUL
- MCI
1 stop11h 21m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$663
This American Airlines deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/279:10 am
MCI
- YYZ
1 stop13h 13m
American Airlines
Mon 6/291:15 pm
YYZ
- MCI
1 stop12h 33m
American Airlines
Deal found 5/26![American Airlines logo]()
$662
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 28, 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 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/27. 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 7/86:07 pm
MCI
- YYZ
3 stops46h 02m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 5/27. 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 7/86:07 pm
MCI
- YTZ
3 stops47h 51m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$212
This Delta deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:56 pm
MCI
- YUL
2 stops19h 24m
Delta
Deal found 5/26![Delta logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/136:07 pm
MCI
- YYZ
2 stops26h 58m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:07 pm
MCI
- YUL
3 stops25h 03m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$258
This American Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/15:33 am
MCI
- YYZ
1 stop10h 15m
American Airlines
Deal found 5/24![American Airlines logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:16 pm
MCI
- YYZ
3 stops24h 28m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:11 pm
MCI
- YUL
3 stops16h 34m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:07 pm
MCI
- YYZ
3 stops22h 02m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 5/27. 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.
Fri 6/266:16 pm
MCI
- YYZ
2 stops16h 16m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 5/23. 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.
Sat 6/206:16 pm
MCI
- YYZ
2 stops18h 49m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$272
This Kiwi.com deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:07 pm
MCI
- YUL
2 stops19h 01m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$273
Find flight deals from Kansas City to Ontario
Keep the following information in mind while searching for Kansas City to Ontario flight deals. Data was last updated May 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $505 (United Airlines) |
One-way from | $208 (Kiwi.com) |
Popular in | March |
Cheapest in | September |
Average price | $641 |
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 28, 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 CityOttawa
MCI - YOW
MCIYOW
Kansas City
Sat 6/20
7:53 am-9:35 pm
1 stop12h 42m
Ottawa
Tue 6/23
6:25 am-12:22 pm
1 stop6h 57m
$505
Kansas CityOttawa
MCI - YOW
MCIYOW
Kansas City
Mon 8/10
3:27 pm-10:05 pm
1 stop5h 38m
Ottawa
Fri 8/14
5:57 pm-11:59 pm
1 stop7h 02m
$604
Kansas CityOttawa
MCI - YOW
MCIYOW
Kansas City
Sat 7/18
6:05 am-10:05 pm
1 stop15h 00m
Ottawa
Wed 7/22
6:25 am-10:29 am
1 stop5h 04m
$604
Kansas CityOttawa
MCI - YOW
MCIYOW
Kansas City
Sat 8/8
6:00 am-5:07 pm
1 stop10h 07m
Ottawa
Wed 8/12
6:05 am-4:12 pm
2 stops11h 07m
$614
Kansas CityMontreal
MCI - YUL
MCIYUL
Kansas City
Tue 6/23
5:00 am-11:29 pm
1 stop17h 29m
Montreal Pierre Elliott Trudeau Intl
Tue 6/30
5:33 pm-8:35 am
1 stop16h 02m
$680
Kansas CityMontreal
MCI - YUL
MCIYUL
Kansas City
Thu 9/24
5:03 am-10:54 pm
1 stop16h 51m
Montreal Pierre Elliott Trudeau Intl
Sun 9/27
7:29 am-11:49 pm
1 stop17h 20m
$704
Kansas CityMontreal
MCI - YUL
MCIYUL
Kansas City
Wed 7/29
5:30 am-4:47 pm
1 stop10h 17m
Montreal Pierre Elliott Trudeau Intl
Wed 8/5
12:30 pm-12:36 am
1 stop13h 06m
$712
Kansas CityMontreal
MCI - YUL
MCIYUL
Kansas City
Wed 9/23
12:21 pm-11:57 pm
1 stop10h 36m
Montreal Pierre Elliott Trudeau Intl
Wed 9/30
9:30 am-5:34 pm
1 stop9h 04m
$713
Kansas CityMontreal
MCI - YUL
MCIYUL
Kansas City
Fri 6/19
10:35 am-6:54 pm
1 stop7h 19m
Montreal Pierre Elliott Trudeau Intl
Wed 6/24
6:50 pm-11:59 pm
1 stop6h 09m
$721
Kansas CityMontreal
MCI - YUL
MCIYUL
Kansas City
Tue 6/23
5:38 am-6:54 pm
2 stops12h 16m
Montreal Pierre Elliott Trudeau Intl
Tue 6/30
9:30 am-6:01 pm
1 stop9h 31m
$729
Showing 1-10 of 56 resultsSorted by cheapest first
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-YOW
MCI-YYZ
MCI-YUL
MCI-YTZ
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
MCI-CAON
MCI-YOW
MCI-YYZ
MCI-YUL
MCI-YTZ
What is the cheapest month to book a flight from Kansas City to Region of Ontario?
Currently, August is the cheapest month in which you can book a flight from Kansas City to Region of Ontario (average of $98). Flying from Kansas City to Region of Ontario in December is currently the most expensive (average of $572). 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 Region of Ontario?
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 28, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andWestJet from Kansas City to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Crew
8.5
Overall
7.9
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Overall
7.9
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Overall
7.9
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Overall
7.9
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Overall
7.9
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Kansas City to Ontario
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Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Kansas City to Ontario by cabin class
Find flights from Kansas City to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Kansas City and Ontario flights
Browse other Kansas City and Ontario flight options. Last updated on May 28, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$219 | Average$752 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$260 | Average$755 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$385 | Average$732 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$591 | Average$684 | FlexibilityNo cancel fee | On-time60% |