$189+ Cheap flights from Ontario to Kentucky
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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SDF
Nov 25 — Dec 21
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Kentucky with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Kentucky
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Cheapest flights from Ontario to KentuckyExplore the most affordable flight options available from Ontario to Kentucky. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
Explore the most affordable flight options available from Ontario to Kentucky. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/89:35 am -
2 stops30h 57m
Mon 12/1412:38 pm -
1 stop26h 12m
Deal found 10/25![Multiple Airlines logo]()
$390
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/97:15 am -
1 stop13h 32m
Mon 12/1412:38 pm -
1 stop26h 42m
Deal found 10/25![Multiple Airlines logo]()
$403
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Mon 12/712:30 pm -
1 stop8h 55m
Sat 12/125:55 am -
1 stop10h 35m
Deal found 10/23![American Airlines logo]()
$406
This Kiwi.com deal was found by Cheapflights users on 10/23. 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.
Mon 12/79:35 am -
2 stops54h 57m
Mon 12/1412:38 pm -
1 stop10h 17m
Deal found 10/23![Multiple Airlines logo]()
$425
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/117:15 am -
1 stop13h 27m
Mon 12/1412:38 pm -
1 stop26h 42m
Deal found 10/25![Multiple Airlines logo]()
$430
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 12/67:00 am -
1 stop28h 48m
Sun 12/139:09 pm -
2 stops25h 46m
Deal found 10/21![Multiple Airlines logo]()
$431
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/97:15 am -
1 stop13h 32m
Wed 12/165:12 pm -
2 stops20h 28m
Deal found 10/25![Multiple Airlines logo]()
$438
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Mon 12/712:30 pm -
1 stop8h 55m
Mon 12/145:49 pm -
1 stop4h 50m
Deal found 10/23![American Airlines logo]()
$447
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/127:15 am -
1 stop13h 32m
Mon 12/149:22 pm -
1 stop17h 08m
Deal found 10/25![Multiple Airlines logo]()
$465
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 11/137:35 am -
1 stop12h 29m
Mon 11/166:53 pm -
1 stop19h 57m
Deal found 10/21![Multiple Airlines logo]()
$467
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.
Tue 11/1010:53 am -
1 stop6h 37m
Mon 11/236:15 pm -
1 stop5h 44m
Deal found 10/26![United Airlines logo]()
$475
This Kissandfly.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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2610:00 am -
1 stop4h 47m
Sun 11/297:00 am -
1 stop7h 03m
Deal found 10/26![Lufthansa logo]()
$481
Best flights from Ontario to KentuckyDiscover carefully curated flight deals from Ontario to Kentucky that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
Discover carefully curated flight deals from Ontario to Kentucky that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 12/67:00 am -
1 stop28h 48m
Sun 12/139:09 pm -
1 stop24h 13m
Deal found 10/21![Multiple Airlines logo]()
$458
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.
Tue 11/1010:53 am -
1 stop6h 37m
Mon 11/236:15 pm -
1 stop5h 44m
Deal found 10/26![United Airlines logo]()
$475
This Delta deal was found by Cheapflights users on 10/21. 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 1/910:20 am -
1 stop6h 07m
Tue 1/1211:45 am -
1 stop6h 06m
Deal found 10/21![Delta logo]()
$483
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 11/2312:42 pm -
1 stop8h 50m
Mon 11/306:11 pm -
1 stop4h 28m
Deal found 10/26![American Airlines logo]()
$483
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 11/137:35 am -
1 stop12h 29m
Mon 11/166:53 pm -
1 stop19h 57m
Deal found 10/21![Multiple Airlines logo]()
$467
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 12/76:15 am -
1 stop5h 42m
Wed 12/97:41 am -
1 stop5h 54m
Deal found 10/26![Delta logo]()
$485
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Mon 12/77:09 am -
1 stop5h 31m
Mon 12/75:49 pm -
1 stop4h 50m
Deal found 10/23![American Airlines logo]()
$494
This United Airlines deal was found by Cheapflights users on 10/21. 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 12/123:35 pm -
1 stop4h 50m
Tue 12/1510:50 am -
1 stop5h 57m
Deal found 10/21![United Airlines logo]()
$497
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 12/126:00 am -
1 stop4h 00m
Tue 12/157:35 am -
1 stop6h 00m
Deal found 10/24![Delta logo]()
$498
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.
Fri 12/253:35 pm -
1 stop7h 04m
Sat 1/29:50 am -
1 stop4h 35m
Deal found 10/25![United Airlines logo]()
$501
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/107:35 am -
1 stop8h 30m
Thu 12/177:20 pm -
1 stop19h 20m
Deal found 10/25![Multiple Airlines logo]()
$513
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 11/216:00 am -
1 stop4h 09m
Sat 11/286:00 am -
1 stop5h 09m
Deal found 10/24![Delta logo]()
$500
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 12/2510:00 am -
1 stop4h 52m
Fri 12/256:00 pm -
1 stop5h 59m
Deal found 10/24![United Airlines logo]()
$505
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/87:45 am -
1 stop9h 31m
Mon 12/147:05 am -
1 stop9h 09m
Deal found 10/25![Delta logo]()
$500
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.
Sat 11/2111:30 pm -
2 stops17h 33m
Sat 11/2812:21 pm -
1 stop10h 59m
Deal found 10/24![Multiple Airlines logo]()
$556
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/256:15 am -
1 stop8h 50m
Fri 12/255:49 pm -
1 stop5h 10m
Deal found 10/24![WestJet logo]()
$1,348
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:55 pm -
1 stop5h 59m
Sun 11/155:25 am -
1 stop4h 22m
Deal found 10/22![United Airlines logo]()
$547
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/236:00 am -
2 stops13h 30m
Fri 11/276:00 am -
1 stop13h 27m
Deal found 10/21![United Airlines logo]()
$621
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.
Thu 11/510:53 am -
1 stop6h 37m
Sun 11/85:25 am -
1 stop8h 38m
Deal found 10/24![United Airlines logo]()
$623
This United Airlines deal was found by Cheapflights users on 10/23. 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.
Thu 2/189:45 am -
1 stop9h 48m
Sun 2/216:00 am -
2 stops8h 29m
Deal found 10/23![United Airlines logo]()
$675
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 11/216:00 am -
1 stop14h 34m
Sat 11/287:00 am -
1 stop7h 09m
Deal found 10/24![United Airlines logo]()
$696
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.
Thu 12/1012:00 pm -
2 stops10h 32m
Thu 12/171:55 pm -
1 stop9h 42m
Deal found 10/25![United Airlines logo]()
$734
Last-minute flights from Ontario to KentuckyDiscover last-minute flight deals from Ontario to Kentucky. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Kentucky. Data last updated October 26, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:45 am -
1 stop10h 17m
Fri 11/1310:27 am -
1 stop6h 20m
Deal found 10/22![United Airlines logo]()
$508
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.
Tue 11/1010:53 am -
1 stop6h 37m
Mon 11/236:15 pm -
1 stop5h 44m
Deal found 10/26![United Airlines logo]()
$475
This American Airlines deal was found by Cheapflights users on 10/22. 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 11/1211:56 am -
1 stop5h 29m
Sun 11/156:27 am -
1 stop4h 23m
Deal found 10/22![American Airlines logo]()
$517
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 11/137:35 am -
1 stop12h 29m
Mon 11/166:53 pm -
1 stop19h 57m
Deal found 10/21![Multiple Airlines logo]()
$467
This American Airlines deal was found by Cheapflights users on 10/22. 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 11/197:09 am -
1 stop10h 04m
Thu 11/261:14 pm -
1 stop21h 45m
Deal found 10/22![American Airlines logo]()
$487
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:44 pm -
1 stop14h 50m
Thu 11/266:00 am -
2 stops11h 49m
Deal found 10/22![United Airlines logo]()
$535
This Kissandfly.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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:09 am -
1 stop5h 53m
Sun 11/226:31 pm -
1 stop5h 28m
Deal found 10/24![British Airways logo]()
$495
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 11/216:00 am -
1 stop4h 09m
Sat 11/286:00 am -
1 stop5h 09m
Deal found 10/24![Delta logo]()
$500
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.
Sat 11/217:15 am -
1 stop5h 44m
Sat 11/287:13 pm -
1 stop4h 34m
Deal found 10/24![American Airlines logo]()
$507
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 11/2110:53 am -
1 stop7h 39m
Sat 11/2810:37 am -
1 stop6h 10m
Deal found 10/24![United Airlines logo]()
$513
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.
Mon 11/2312:42 pm -
1 stop8h 50m
Mon 11/306:11 pm -
1 stop4h 28m
Deal found 10/24![American Airlines logo]()
$482
This Kissandfly.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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2610:00 am -
1 stop4h 47m
Sun 11/297:00 am -
1 stop7h 03m
Deal found 10/26![Lufthansa logo]()
$481
One-way flights from Ontario to KentuckySearch for one-way flight options from Ontario to Kentucky. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
Search for one-way flight options from Ontario to Kentucky. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
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.
Tue 12/89:35 am -
2 stops30h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Multiple Airlines logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 12/63:30 pm -
1 stop20h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 11/166:30 am -
1 stop28h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$216
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Fri 11/206:21 pm -
1 stop15h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![American Airlines logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 10/23. 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.
Fri 11/206:30 am -
2 stops32h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$248
This Kiwi.com deal was found by Cheapflights users on 10/23. 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.
Thu 11/127:35 am -
2 stops12h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$253
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Mon 12/76:23 pm -
1 stop14h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![American Airlines logo]()
$255
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/107:35 am -
1 stop8h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 10/23. 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.
Mon 12/711:30 pm -
3 stops41h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 10/23. 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.
Mon 12/77:00 am -
3 stops57h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$257
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 12/1010:00 am -
2 stops13h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Delta logo]()
$262
This Thrive Travel 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 Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/81:22 pm -
1 stop8h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![British Airways logo]()
$265
Find flight deals from Ontario to Kentucky
Keep the following information in mind while searching for Ontario to Kentucky flight deals. Data was last updated October 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $390 (Kiwi.com) |
One-way from | $189 (Kiwi.com) |
Popular in | February |
Cheapest in | May |
Average price | $500 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Kentucky 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 26, 2026.
Use the filters below to find and compare flights from Ontario to Kentucky that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OttawaLouisville
YOW Ottawa - SDF Louisville Intl
YOWSDF
Ottawa
Sun 12/6
3:30 pm-11:48 am
1 stop20h 18m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$214
TorontoLouisville
YYZ Toronto Pearson Intl - SDF Louisville Intl
YYZSDF
Toronto Pearson Intl
Fri 11/20
6:21 pm-9:28 am
1 stop15h 07m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$237
TorontoLouisville
YYZ Toronto Pearson Intl - SDF Louisville Intl
YYZSDF
Toronto Pearson Intl
Fri 11/20
6:30 am-3:26 pm
2 stops32h 56m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$248
TorontoLouisville
YYZ Toronto Pearson Intl - SDF Louisville Intl
YYZSDF
Toronto Pearson Intl
Thu 11/12
7:35 am-8:29 pm
2 stops12h 54m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$253
OttawaLouisville
YOW Ottawa - SDF Louisville Intl
YOWSDF
Ottawa
Mon 12/7
7:00 am-4:32 pm
3 stops57h 32m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$257
TorontoLexington
YYZ Toronto Pearson Intl - LEX Lexington Blue Grass
YYZLEX
Toronto Pearson Intl
Thu 12/10
10:00 am-11:23 pm
2 stops13h 23m
Lexington Blue Grass
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$262
TorontoLouisville
YYZ Toronto Pearson Intl - SDF Louisville Intl
YYZSDF
Toronto Pearson Intl
Fri 12/25
3:25 pm-10:07 am
1 stop18h 42m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$265
TorontoLouisville
YYZ Toronto Pearson Intl - SDF Louisville Intl
YYZSDF
Toronto Pearson Intl
Tue 12/8
1:22 pm-9:37 pm
1 stop8h 15m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$265
TorontoLexington
YYZ Toronto Pearson Intl - LEX Lexington Blue Grass
YYZLEX
Toronto Pearson Intl
Mon 1/11
10:20 am-11:22 pm
2 stops13h 02m
Lexington Blue Grass
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$269
TorontoLouisville
YYZ Toronto Pearson Intl - SDF Louisville Intl
YYZSDF
Toronto Pearson Intl
Sun 12/20
6:45 am-8:56 pm
1 stop14h 11m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$280
Showing 1-10 of 46 resultsSorted by cheapest first
Best time to book a flight from Ontario to Kentucky
Have a flexible travel schedule? Discover the best time to fly to Kentucky from Ontario with our price prediction graph.
YOW-SDF
YYZ-SDF
YYZ-LEX
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Kentucky
CAON-USKY
YOW-SDF
YYZ-SDF
YYZ-LEX
What is the cheapest month to book a flight from Region of Ontario to Kentucky?
Currently, September is the cheapest month in which you can book a flight from Region of Ontario to Kentucky (average of $472). Flying from Region of Ontario to Kentucky in January is currently the most expensive (average of $723). 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.
What is the cheapest time of day to fly from ON to KY?
Find hourly flight availability from Ontario to Kentucky. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 26, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Kentucky as you normally would.
How much does it cost to fly round-trip from Region of Ontario to Kentucky?
Airfare is below average for this route at the moment.
Region of Ontario to Kentucky flights typically cost between $545 and $680 in December.The cheapest round-trip price found within the last 5 days was $390 on Multiple Airlines (Dec 8-Dec 14).
Reviews of airlines servicing Kentucky
Get insights into the airlines that provide service to Kentucky. 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 Kentucky. Reviews last updated October 26, 2026.
See what other customers who have flown with Delta from Ontario to Kentucky have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Comfort
7.8
Crew
8.5
Entertainment
7.8
Overall
7.8
Boarding
8.1
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Food
7.2
Comfort
7.8
Crew
8.5
Entertainment
7.8
Overall
7.8
Boarding
8.1
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Related info for your journey
Find useful and relevant information for your journey from Ontario to Kentucky. 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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