$193+ Cheap flights from Kentucky to Ontario
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — YYZ
Nov 28 — Dec 51
Round-trip
1 adult, Economy
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Find cheap flights from Kentucky to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Kentucky to Ontario
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Cheapest flights from Kentucky to OntarioExplore the most affordable flight options available from Kentucky to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2026.
Explore the most affordable flight options available from Kentucky to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Thu 12/249:09 pm -
1 stop19h 06m
Thu 12/317:35 am -
2 stops12h 54m
Deal found 10/27![Multiple Airlines logo]()
$406
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Thu 12/109:09 pm -
1 stop26h 38m
Tue 12/1512:20 pm -
2 stops28h 12m
Deal found 10/28![Multiple Airlines logo]()
$427
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 12/219:56 am -
1 stop13h 59m
Thu 12/317:35 am -
2 stops12h 54m
Deal found 10/27![Multiple Airlines logo]()
$445
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Sun 11/157:24 pm -
1 stop19h 56m
Thu 11/197:35 am -
1 stop8h 48m
Deal found 10/27![Multiple Airlines logo]()
$454
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/2711:39 am -
2 stops26h 01m
Fri 12/47:30 am -
1 stop13h 12m
Deal found 10/28![Multiple Airlines logo]()
$491
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/109:09 pm -
1 stop26h 38m
Thu 12/1711:30 am -
2 stops23h 29m
Deal found 10/26![Multiple Airlines logo]()
$492
This American Airlines deal was found by Cheapflights users on 10/26. 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.
Thu 12/101:21 pm -
1 stop10h 20m
Thu 12/177:14 am -
1 stop10h 26m
Deal found 10/26![American Airlines logo]()
$507
This American Airlines deal was found by Cheapflights users on 10/25. 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.
Wed 12/95:55 am -
1 stop10h 35m
Wed 12/1612:30 pm -
1 stop8h 55m
Deal found 10/25![American Airlines logo]()
$508
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Tue 12/225:59 pm -
1 stop20h 11m
Wed 12/304:30 pm -
1 stop22h 45m
Deal found 10/27![Multiple Airlines logo]()
$525
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Thu 12/249:09 pm -
1 stop19h 06m
Sun 1/39:20 am -
1 stop24h 16m
Deal found 10/27![Multiple Airlines logo]()
$527
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 12/2310:56 am -
1 stop12h 59m
Thu 12/317:35 am -
2 stops12h 54m
Deal found 10/27![Multiple Airlines logo]()
$530
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Sun 12/209:08 pm -
2 stops26h 32m
Wed 12/304:30 pm -
1 stop22h 45m
Deal found 10/27![Multiple Airlines logo]()
$532
Best flights from Kentucky to OntarioDiscover carefully curated flight deals from Kentucky to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 29, 2026.
Discover carefully curated flight deals from Kentucky to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Sun 11/157:24 pm -
1 stop19h 56m
Thu 11/197:35 am -
1 stop8h 48m
Deal found 10/27![Multiple Airlines logo]()
$454
This American Airlines deal was found by Cheapflights users on 10/28. 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 12/105:55 am -
1 stop10h 35m
Tue 12/1512:30 pm -
1 stop8h 55m
Deal found 10/28![American Airlines logo]()
$491
This Delta deal was found by Cheapflights users on 10/26. 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.
Thu 12/1010:40 am -
1 stop6h 40m
Thu 12/172:25 pm -
1 stop6h 56m
Deal found 10/26![Delta logo]()
$610
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Fri 11/135:25 am -
1 stop11h 22m
Sat 11/288:35 am -
1 stop4h 40m
Deal found 10/26![United Airlines logo]()
$610
This Air Canada deal was found by Cheapflights users on 10/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/207:00 am -
2 stops14h 49m
Tue 3/235:30 am -
2 stops14h 31m
Deal found 10/26![Air Canada logo]()
$980
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/2711:39 am -
2 stops26h 01m
Fri 12/47:30 am -
1 stop13h 12m
Deal found 10/28![Multiple Airlines logo]()
$491
This Delta deal was found by Cheapflights users on 10/26. 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.
Tue 1/265:59 pm -
1 stop5h 57m
Sat 1/306:14 am -
1 stop8h 58m
Deal found 10/26![Delta logo]()
$623
This United Airlines deal was found by Cheapflights users on 10/27. 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 1/610:50 am -
1 stop7h 55m
Sun 1/106:45 am -
1 stop6h 30m
Deal found 10/27![United Airlines logo]()
$645
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Sat 12/125:44 am -
2 stops10h 46m
Sat 12/193:25 pm -
1 stop8h 21m
Deal found 10/27![American Airlines logo]()
$647
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Tue 11/247:10 pm -
1 stop27h 45m
Tue 12/112:15 pm -
1 stop5h 04m
Deal found 10/27![Multiple Airlines logo]()
$598
This Delta deal was found by Cheapflights users on 10/27. 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 12/227:20 am -
1 stop3h 55m
Sat 1/26:10 am -
1 stop4h 37m
Deal found 10/27![Delta logo]()
$623
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Fri 12/252:00 pm -
1 stop4h 45m
Fri 1/15:55 pm -
1 stop4h 44m
Deal found 10/27![United Airlines logo]()
$647
This Delta deal was found by Cheapflights users on 10/26. 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.
Tue 1/267:30 am -
1 stop4h 03m
Thu 1/2812:10 pm -
1 stop5h 23m
Deal found 10/26![Delta logo]()
$624
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Sat 11/211:50 pm -
1 stop7h 25m
Sat 11/286:45 am -
1 stop6h 30m
Deal found 10/24![United Airlines logo]()
$664
This Delta deal was found by Cheapflights users on 10/26. 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.
Sun 1/245:30 am -
1 stop5h 39m
Tue 2/26:10 am -
1 stop4h 34m
Deal found 10/26![Delta logo]()
$624
This Delta deal was found by Cheapflights users on 10/26. 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.
Mon 1/255:59 pm -
1 stop5h 57m
Tue 2/212:25 pm -
1 stop4h 37m
Deal found 10/26![Delta logo]()
$624
This Air Canada deal was found by Cheapflights users on 10/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/207:00 am -
2 stops14h 49m
Mon 3/223:20 pm -
2 stops8h 35m
Deal found 10/27![Air Canada logo]()
$980
This Delta deal was found by Cheapflights users on 10/26. 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.
Tue 1/266:22 pm -
1 stop4h 37m
Fri 1/295:15 pm -
1 stop4h 17m
Deal found 10/26![Delta logo]()
$624
This Air Canada deal was found by Cheapflights users on 10/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/121:59 pm -
2 stops7h 53m
Sat 12/195:30 am -
2 stops11h 50m
Deal found 10/28![Air Canada logo]()
$980
This Delta deal was found by Cheapflights users on 10/27. 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.
Sat 12/266:29 pm -
1 stop4h 30m
Sun 1/36:15 am -
1 stop9h 38m
Deal found 10/27![Delta logo]()
$635
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:55 pm -
3 stops34h 40m
Thu 11/126:40 am -
3 stops31h 44m
Deal found 10/26![WestJet logo]()
$2,264
This United Airlines deal was found by Cheapflights users on 10/27. 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 12/218:31 am -
1 stop5h 38m
Fri 12/256:15 am -
1 stop6h 57m
Deal found 10/27![United Airlines logo]()
$855
This Delta deal was found by Cheapflights users on 10/27. 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.
Sat 12/267:20 am -
1 stop7h 54m
Fri 1/16:15 am -
1 stop9h 38m
Deal found 10/27![Delta logo]()
$635
This United Airlines deal was found by Cheapflights users on 10/25. 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.
Wed 12/98:45 am -
1 stop5h 24m
Sat 12/126:15 am -
1 stop16h 17m
Deal found 10/25![United Airlines logo]()
$855
This United Airlines deal was found by Cheapflights users on 10/27. 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 12/218:31 am -
1 stop5h 38m
Mon 12/286:15 am -
1 stop6h 57m
Deal found 10/27![United Airlines logo]()
$855
This Delta deal was found by Cheapflights users on 10/27. 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.
Sun 12/2711:27 am -
1 stop3h 47m
Fri 1/16:15 am -
1 stop7h 20m
Deal found 10/27![Delta logo]()
$647
This Delta deal was found by Cheapflights users on 10/24. 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.
Sat 11/215:49 pm -
1 stop5h 08m
Sat 11/282:20 pm -
1 stop6h 58m
Deal found 10/24![Delta logo]()
$664
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Sat 11/219:00 am -
1 stop12h 16m
Sat 11/286:15 am -
1 stop12h 55m
Deal found 10/24![United Airlines logo]()
$926
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Thu 12/106:15 am -
2 stops8h 27m
Thu 12/179:15 am -
2 stops11h 41m
Deal found 10/26![United Airlines logo]()
$980
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/96:00 am -
2 stops8h 42m
Thu 11/123:25 pm -
2 stops18h 13m
Deal found 10/26![United Airlines logo]()
$980
Last-minute flights from Kentucky to OntarioDiscover last-minute flight deals from Kentucky to Ontario. Data last updated October 29, 2026 and is based on user searches.
Discover last-minute flight deals from Kentucky to Ontario. Data last updated October 29, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 10/24. 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.
Thu 11/59:09 pm -
1 stop19h 06m
Sat 11/76:00 am -
1 stop3h 59m
Deal found 10/24![Multiple Airlines logo]()
$642
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/69:22 pm -
1 stop17h 08m
Sun 11/86:30 am -
1 stop13h 17m
Deal found 10/28![Multiple Airlines logo]()
$582
This deal was found by Cheapflights users on 10/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:13 am -
1 stop4h 21m
Tue 11/1711:50 am -
1 stop5h 22m
Deal found 10/25![American Airlines logo]()
$660
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Fri 11/135:25 am -
1 stop11h 22m
Sat 11/288:35 am -
1 stop4h 40m
Deal found 10/26![United Airlines logo]()
$610
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Sun 11/157:24 pm -
1 stop19h 56m
Thu 11/197:35 am -
1 stop8h 48m
Deal found 10/27![Multiple Airlines logo]()
$454
This American Airlines deal was found by Cheapflights users on 10/28. 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 11/191:14 pm -
1 stop10h 45m
Sun 11/226:21 pm -
1 stop15h 07m
Deal found 10/28![American Airlines logo]()
$649
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Sat 11/215:10 am -
1 stop4h 37m
Sat 11/285:55 pm -
1 stop4h 35m
Deal found 10/24![United Airlines logo]()
$643
This Kiwi.com deal was found by Cheapflights users on 10/24. 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 11/236:54 pm -
1 stop22h 16m
Mon 11/307:35 am -
1 stop10h 19m
Deal found 10/24![Multiple Airlines logo]()
$560
This American Airlines deal was found by Cheapflights users on 10/26. 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.
Mon 11/236:02 am -
1 stop10h 31m
Mon 11/306:07 pm -
1 stop6h 13m
Deal found 10/26![American Airlines logo]()
$566
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Tue 11/247:10 pm -
1 stop22h 00m
Tue 12/112:20 pm -
2 stops51h 45m
Deal found 10/27![Multiple Airlines logo]()
$577
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/2711:39 am -
2 stops26h 01m
Fri 12/47:30 am -
1 stop13h 12m
Deal found 10/28![Multiple Airlines logo]()
$491
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Fri 11/2710:01 am -
1 stop7h 39m
Fri 12/46:23 pm -
1 stop14h 59m
Deal found 10/28![American Airlines logo]()
$575
One-way flights from Kentucky to OntarioSearch for one-way flight options from Kentucky to Ontario. Find affordable one-way fares based on user searches. Data last updated October 29, 2026.
Search for one-way flight options from Kentucky to Ontario. Find affordable one-way fares based on user searches. Data last updated October 29, 2026.
This Thrive Travel deal was found by Cheapflights users on 10/27. 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 Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/116:22 am -
1 stop6h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Japan Airlines logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/99:22 pm -
1 stop17h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Multiple Airlines logo]()
$226
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Sat 12/125:44 am -
2 stops10h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![American Airlines logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 10/24. 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.
Sun 11/88:48 am -
1 stop28h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Multiple Airlines logo]()
$240
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/29:22 pm -
1 stop17h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 12/1110:25 am -
2 stops27h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$264
This United Airlines deal was found by Cheapflights users on 10/27. 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 12/128:45 am -
1 stop8h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![United Airlines logo]()
$266
This United Airlines deal was found by Cheapflights users on 10/27. 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 4/147:00 am -
1 stop6h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![United Airlines logo]()
$276
This Delta deal was found by Cheapflights users on 10/27. 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 12/2311:27 am -
1 stop3h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Delta logo]()
$283
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Fri 12/186:00 pm -
1 stop5h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![United Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 10/24. 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 12/1811:04 am -
3 stops34h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Multiple Airlines logo]()
$307
This American Airlines deal was found by Cheapflights users on 10/24. 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 11/89:14 am -
1 stop5h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![American Airlines logo]()
$311
Find flight deals from Kentucky to Ontario
Keep the following information in mind while searching for Kentucky to Ontario flight deals. Data was last updated October 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $321 (Kiwi.com) |
One-way from | $193 (Thrive Travel) |
Popular in | December |
Cheapest in | March |
Average price | $661 |
Cheapflights Fare Finder
Customize your flight search to find flights from Kentucky to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 29, 2026.
Use the filters below to find and compare flights from Kentucky to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LouisvilleToronto
SDF Louisville Intl - YYZ Toronto Pearson Intl
SDFYYZ
Louisville Intl
Fri 12/11
6:22 am-12:35 pm
1 stop6h 13m
Toronto Pearson Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$193
LouisvilleToronto
SDF Louisville Intl - YYZ Toronto Pearson Intl
SDFYYZ
Louisville Intl
Mon 11/9
9:22 pm-2:30 pm
1 stop17h 08m
Toronto Pearson Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$226
LouisvilleToronto
SDF Louisville Intl - YYZ Toronto Pearson Intl
SDFYYZ
Louisville Intl
Mon 11/2
9:22 pm-2:30 pm
1 stop17h 08m
Toronto Pearson Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$258
LexingtonToronto
LEX Lexington Blue Grass - YYZ Toronto Pearson Intl
LEXYYZ
Lexington Blue Grass
Sat 12/12
8:45 am-4:47 pm
1 stop8h 02m
Toronto Pearson Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$266
LexingtonToronto
LEX Lexington Blue Grass - YYZ Toronto Pearson Intl
LEXYYZ
Lexington Blue Grass
Wed 4/14
7:00 am-1:33 pm
1 stop6h 33m
Toronto Pearson Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$276
Quickest round-trip
LouisvilleToronto
SDF Louisville Intl - YYZ Toronto Pearson Intl
SDFYYZ
Louisville Intl
Wed 12/23
11:27 am-3:14 pm
1 stop3h 47m
Toronto Pearson Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$283
LouisvilleToronto
SDF Louisville Intl - YYZ Toronto Pearson Intl
SDFYYZ
Louisville Intl
Fri 12/18
6:00 pm-11:59 pm
1 stop5h 59m
Toronto Pearson Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$294
LexingtonToronto
LEX Lexington Blue Grass - YYZ Toronto Pearson Intl
LEXYYZ
Lexington Blue Grass
Sun 11/8
9:19 pm-9:52 pm
3 stops48h 33m
Toronto Pearson Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$299
LouisvilleToronto
SDF Louisville Intl - YYZ Toronto Pearson Intl
SDFYYZ
Louisville Intl
Fri 12/11
7:59 pm-7:39 pm
3 stops23h 40m
Toronto Pearson Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$299
LexingtonToronto
LEX Lexington Blue Grass - YYZ Toronto Pearson Intl
LEXYYZ
Lexington Blue Grass
Sun 11/8
6:30 am-11:14 am
1 stop4h 44m
Toronto Pearson Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$318
Showing 1-10 of 48 resultsSorted by cheapest first
Best time to book a flight from Kentucky to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Kentucky with our price prediction graph.
SDF-YYZ
LEX-YYZ
LEX-YOW
SDF-YXU
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 Kentucky to Ontario
USKY-CAON
SDF-YYZ
LEX-YYZ
LEX-YOW
SDF-YXU
What is the cheapest month to book a flight from Kentucky to Region of Ontario?
Currently, January is the cheapest month in which you can book a flight from Kentucky to Region of Ontario (average of $516). Flying from Kentucky to Region of Ontario in December is currently the most expensive (average of $918). 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.
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated October 29, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican Airlines from Kentucky to Ontario. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Crew
8.5
Food
7.2
Comfort
7.8
Boarding
8.1
Overall
7.8
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Entertainment
7.8
Crew
8.5
Food
7.2
Comfort
7.8
Boarding
8.1
Overall
7.8
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Entertainment
7.8
Crew
8.5
Food
7.2
Comfort
7.8
Boarding
8.1
Overall
7.8
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Entertainment
7.8
Crew
8.5
Food
7.2
Comfort
7.8
Boarding
8.1
Overall
7.8
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Related info for your journey
Find useful and relevant information for your journey from Kentucky to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Kentucky to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Kentucky to Ontario by cabin class
Find flights from Kentucky to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Kentucky and Ontario flights
Browse other Kentucky and Ontario flight options. Last updated on October 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Ontario
Find the right flight back to Kentucky after your stay in Ontario
Kentucky to Ontario flights
Consider these flights traveling from Kentucky to Ontario.
Top 3 airlines flying from Kentucky to Ontario
Discover the top 3 airlines that operate flights from Kentucky to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$240 | Average$582 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$341 | Average$740 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$511 | Average$614 | FlexibilityNo cancel fee | On-time71% |