$81+ Cheap flights from Ontario (ONT) to Kentucky
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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SDF
Sep 25 — Oct 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 August 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 August 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 11/311:52 am -
1 stop24h 24m
Tue 11/103:11 pm -
1 stop10h 40m
Deal found 8/25![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 8/22. 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.
Tue 9/1511:45 am -
1 stop24h 33m
Fri 9/183:20 pm -
1 stop21h 10m
Deal found 8/22![Frontier logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 8/22. 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.
Fri 10/3011:52 am -
1 stop24h 24m
Mon 11/23:11 pm -
1 stop10h 40m
Deal found 8/22![Frontier logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 9/216:15 am -
1 stop11h 40m
Sat 9/263:14 pm -
1 stop10h 33m
Deal found 8/23![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 10/2611:52 am -
1 stop24h 24m
Sat 10/313:11 pm -
1 stop10h 40m
Deal found 8/23![Frontier logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 10/2611:52 am -
1 stop24h 24m
Tue 11/33:11 pm -
1 stop21h 24m
Deal found 8/24![Frontier logo]()
$183
This Trip.com deal was found by Cheapflights users on 8/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:15 am -
1 stop6h 03m
Sat 9/193:14 pm -
1 stop10h 33m
Deal found 8/21![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 9/1711:45 am -
1 stop29h 52m
Tue 9/223:14 pm -
1 stop21h 16m
Deal found 8/25![Frontier logo]()
$188
This Trip.com deal was found by Cheapflights users on 8/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:15 am -
1 stop6h 03m
Wed 9/163:14 pm -
1 stop10h 33m
Deal found 8/23![Frontier logo]()
$190
This Trip.com deal was found by Cheapflights users on 8/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1111:45 am -
1 stop5h 52m
Tue 9/153:14 pm -
1 stop10h 33m
Deal found 8/23![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Wed 9/166:15 am -
1 stop6h 03m
Tue 9/223:14 pm -
1 stop10h 33m
Deal found 8/23![Frontier logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 11/76:25 am -
1 stop5h 51m
Tue 11/103:11 pm -
1 stop21h 24m
Deal found 8/25![Frontier logo]()
$195
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 August 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 August 26, 2026.
This Delta deal was found by Cheapflights users on 8/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1212:17 pm -
1 stop8h 52m
Sat 9/197:30 am -
1 stop6h 44m
Deal found 8/22![Delta logo]()
$263
This Southwest deal was found by Cheapflights users on 8/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/201:35 pm -
1 stop6h 20m
Sat 10/242:35 pm -
2 stops9h 05m
Deal found 8/21![Southwest logo]()
$322
This United Airlines deal was found by Cheapflights users on 8/23. 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.
Tue 9/19:01 am -
2 stops10h 14m
Thu 9/32:54 pm -
1 stop10h 05m
Deal found 8/23![United Airlines logo]()
$368
This Alaska Airlines deal was found by Cheapflights users on 8/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:56 pm -
2 stops11h 44m
Mon 11/25:51 pm -
2 stops23h 22m
Deal found 8/22![Alaska Airlines logo]()
$429
This American Airlines deal was found by Cheapflights users on 8/23. 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.
Sat 12/57:00 am -
1 stop8h 28m
Sat 12/127:00 am -
1 stop6h 52m
Deal found 8/23![American Airlines logo]()
$481
This Delta deal was found by Cheapflights users on 8/25. 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 10/256:00 am -
1 stop6h 24m
Wed 10/286:30 am -
1 stop6h 36m
Deal found 8/25![Delta logo]()
$263
This Delta deal was found by Cheapflights users on 8/21. 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.
Thu 9/31:06 pm -
1 stop7h 44m
Sun 9/66:30 am -
1 stop6h 12m
Deal found 8/21![Delta logo]()
$311
This United Airlines deal was found by Cheapflights users on 8/25. 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.
Mon 11/25:00 am -
2 stops10h 32m
Tue 11/244:45 pm -
1 stop6h 55m
Deal found 8/25![United Airlines logo]()
$376
This Southwest deal was found by Cheapflights users on 8/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/28:05 am -
2 stops7h 40m
Mon 10/52:40 pm -
2 stops8h 40m
Deal found 8/21![Southwest logo]()
$383
This Delta deal was found by Cheapflights users on 8/26. 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.
Sat 9/512:00 pm -
1 stop7h 46m
Sun 9/61:06 pm -
1 stop8h 24m
Deal found 8/26![Delta logo]()
$341
This Southwest deal was found by Cheapflights users on 8/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:10 am -
Nonstop3h 50m
Wed 10/282:10 pm -
1 stop9h 10m
Deal found 8/24![Southwest logo]()
$387
This Alaska Airlines deal was found by Cheapflights users on 8/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/103:14 pm -
2 stops16h 09m
Mon 9/144:55 pm -
2 stops20h 21m
Deal found 8/25![Alaska Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 8/26. 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.
Wed 9/96:08 am -
2 stops11h 20m
Tue 9/157:00 am -
2 stops10h 01m
Deal found 8/26![United Airlines logo]()
$395
This Delta deal was found by Cheapflights users on 8/23. 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.
Sat 1/912:00 pm -
1 stop6h 21m
Sat 1/233:45 pm -
1 stop9h 29m
Deal found 8/23![Delta logo]()
$341
This United Airlines deal was found by Cheapflights users on 8/21. 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.
Wed 9/3011:10 am -
1 stop7h 48m
Thu 11/269:40 am -
1 stop8h 19m
Deal found 8/21![United Airlines logo]()
$405
This Southwest deal was found by Cheapflights users on 8/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/172:40 pm -
1 stop5h 30m
Wed 9/234:00 pm -
2 stops8h 00m
Deal found 8/21![Southwest logo]()
$417
This Delta deal was found by Cheapflights users on 8/23. 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.
Sat 1/912:00 pm -
1 stop6h 21m
Mon 1/253:45 pm -
1 stop9h 29m
Deal found 8/23![Delta logo]()
$350
This Alaska Airlines deal was found by Cheapflights users on 8/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:56 pm -
2 stops11h 28m
Mon 11/23:12 pm -
2 stops23h 06m
Deal found 8/21![Alaska Airlines logo]()
$468
This United Airlines deal was found by Cheapflights users on 8/23. 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.
Tue 11/105:00 am -
1 stop6h 22m
Wed 11/113:24 pm -
1 stop8h 27m
Deal found 8/23![United Airlines logo]()
$417
This Southwest deal was found by Cheapflights users on 8/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/219:15 am -
2 stops8h 45m
Sat 10/245:25 pm -
1 stop6h 35m
Deal found 8/24![Southwest logo]()
$420
This Delta deal was found by Cheapflights users on 8/23. 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.
Sat 1/912:00 pm -
1 stop6h 21m
Thu 1/215:55 pm -
1 stop7h 19m
Deal found 8/23![Delta logo]()
$350
This Alaska Airlines deal was found by Cheapflights users on 8/23. 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.
Wed 1/137:00 am -
1 stop10h 40m
Mon 1/2511:58 am -
2 stops11h 04m
Deal found 8/23![Alaska Airlines logo]()
$490
This United Airlines deal was found by Cheapflights users on 8/24. 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.
Wed 10/285:00 am -
1 stop6h 22m
Wed 11/43:45 pm -
1 stop8h 55m
Deal found 8/24![United Airlines logo]()
$417
This American Airlines deal was found by Cheapflights users on 8/24. 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 9/87:05 am -
2 stops12h 53m
Sat 9/1212:50 pm -
2 stops12h 47m
Deal found 8/24![American Airlines logo]()
$612
This Southwest deal was found by Cheapflights users on 8/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:00 am -
Nonstop3h 50m
Sun 10/115:45 am -
1 stop6h 30m
Deal found 8/25![Southwest logo]()
$425
This Delta deal was found by Cheapflights users on 8/25. 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 9/2710:00 pm -
1 stop7h 55m
Mon 9/286:25 pm -
1 stop6h 59m
Deal found 8/25![Delta logo]()
$357
This United Airlines deal was found by Cheapflights users on 8/22. 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.
Sat 9/126:08 am -
2 stops13h 21m
Wed 9/168:00 am -
2 stops13h 16m
Deal found 8/22![United Airlines logo]()
$427
This KAYAK deal was found by Cheapflights users on 8/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1911:08 pm -
1 stop8h 41m
Wed 10/215:20 am -
1 stop7h 46m
Deal found 8/24![Delta logo]()
$363
This Southwest deal was found by Cheapflights users on 8/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/188:30 pm -
2 stops10h 15m
Sun 2/213:40 pm -
2 stops8h 35m
Deal found 8/25![Southwest logo]()
$451
This United Airlines deal was found by Cheapflights users on 8/25. 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 2/66:53 pm -
2 stops12h 18m
Tue 2/92:00 pm -
2 stops12h 06m
Deal found 8/25![United Airlines logo]()
$451
Last-minute flights from Ontario to KentuckyDiscover last-minute flight deals from Ontario to Kentucky. Data last updated August 26, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Kentucky. Data last updated August 26, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/22. 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.
Tue 9/17:56 pm -
1 stop14h 14m
Tue 9/153:14 pm -
1 stop10h 33m
Deal found 8/22![Frontier logo]()
$195
This Trip.com deal was found by Cheapflights users on 8/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:24 pm -
1 stop14h 40m
Sat 9/123:14 pm -
1 stop10h 33m
Deal found 8/23![Frontier logo]()
$196
This Trip.com deal was found by Cheapflights users on 8/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:24 pm -
1 stop14h 40m
Tue 9/153:14 pm -
1 stop10h 33m
Deal found 8/22![Frontier logo]()
$197
This Trip.com deal was found by Cheapflights users on 8/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1111:45 am -
1 stop5h 52m
Tue 9/153:14 pm -
1 stop10h 33m
Deal found 8/23![Frontier logo]()
$191
This Trip.com deal was found by Cheapflights users on 8/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:15 am -
1 stop6h 03m
Sat 9/193:14 pm -
1 stop10h 33m
Deal found 8/21![Frontier logo]()
$186
This Trip.com deal was found by Cheapflights users on 8/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:15 am -
1 stop6h 03m
Wed 9/163:14 pm -
1 stop10h 33m
Deal found 8/23![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 8/22. 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.
Tue 9/1511:45 am -
1 stop24h 33m
Fri 9/183:20 pm -
1 stop21h 10m
Deal found 8/22![Frontier logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Wed 9/166:15 am -
1 stop6h 03m
Tue 9/223:14 pm -
1 stop10h 33m
Deal found 8/23![Frontier logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 9/1711:45 am -
1 stop29h 52m
Tue 9/223:14 pm -
1 stop21h 16m
Deal found 8/25![Frontier logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 9/216:15 am -
1 stop11h 40m
Sat 9/263:14 pm -
1 stop10h 33m
Deal found 8/23![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 8/26. 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.
Wed 9/232:30 pm -
1 stop20h 34m
Wed 9/303:14 pm -
1 stop10h 33m
Deal found 8/26![Frontier logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Tue 9/2911:45 am -
1 stop24h 33m
Tue 10/63:14 pm -
1 stop10h 33m
Deal found 8/23![Frontier logo]()
$165
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 August 26, 2026.
Search for one-way flight options from Ontario to Kentucky. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 9/216:15 am -
1 stop9h 20m
Deal found 8/24![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 8/22. 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.
Tue 10/2011:52 am -
1 stop24h 27m
Deal found 8/22![Frontier logo]()
$85
This Kiwi.com deal was found by Cheapflights users on 8/26. 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.
Tue 10/276:25 am -
1 stop29h 51m
Deal found 8/26![Frontier logo]()
$86
This WAYA deal was found by Cheapflights users on 8/22. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:15 am -
1 stop6h 03m
Deal found 8/22![Frontier logo]()
$87
This Trip.com deal was found by Cheapflights users on 8/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1511:52 am -
1 stop22h 17m
Deal found 8/24![Frontier logo]()
$93
This WAYA deal was found by Cheapflights users on 8/22. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:15 am -
1 stop6h 03m
Deal found 8/22![Frontier logo]()
$99
This Super.com deal was found by Cheapflights users on 8/24. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:15 am -
1 stop6h 03m
Deal found 8/24![Frontier logo]()
$100
This Super.com deal was found by Cheapflights users on 8/25. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:15 am -
1 stop6h 03m
Deal found 8/25![Frontier logo]()
$101
This Booking.com deal was found by Cheapflights users on 8/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:15 am -
1 stop6h 03m
Deal found 8/25![Frontier logo]()
$102
This Frontier deal was found by Cheapflights users on 8/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:15 am -
1 stop6h 03m
Deal found 8/25![Frontier logo]()
$103
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Wed 9/236:15 am -
2 stops26h 23m
Deal found 8/21![Frontier logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 8/22. 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.
Wed 9/166:15 am -
1 stop6h 56m
Deal found 8/22![Frontier logo]()
$117
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 August 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $165 (Kiwi.com) |
One-way from | $81 (Kiwi.com) |
Popular in | February |
Cheapest in | October |
Average price | $418 |
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 August 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
OntarioNashville
ONT Ontario - BNA Nashville Intl
ONTBNA
Ontario
Sat 9/12
12:17 pm-11:09 pm
1 stop8h 52m
Nashville Intl
Sat 9/19
7:30 am-12:14 pm
1 stop6h 44m
$263
OntarioNashville
ONT Ontario - BNA Nashville Intl
ONTBNA
Ontario
Sun 10/25
6:00 am-2:24 pm
1 stop6h 24m
Nashville Intl
Wed 10/28
6:30 am-11:06 am
1 stop6h 36m
$263
OntarioNashville
ONT Ontario - BNA Nashville Intl
ONTBNA
Ontario
Thu 9/3
1:06 pm-10:50 pm
1 stop7h 44m
Nashville Intl
Sun 9/6
6:30 am-10:42 am
1 stop6h 12m
$311
OntarioLouisville
ONT Ontario - SDF Louisville Intl
ONTSDF
Ontario
Tue 10/20
1:35 pm-10:55 pm
1 stop6h 20m
Louisville Intl
Sat 10/24
2:35 pm-8:40 pm
2 stops9h 05m
$322
OntarioLexington
ONT Ontario - LEX Lexington Blue Grass
ONTLEX
Ontario
Sat 9/5
12:00 pm-10:46 pm
1 stop7h 46m
Lexington Blue Grass
Sun 9/6
1:06 pm-6:30 pm
1 stop8h 24m
$341
OntarioLexington
ONT Ontario - LEX Lexington Blue Grass
ONTLEX
Ontario
Sat 1/9
12:00 pm-9:21 pm
1 stop6h 21m
Lexington Blue Grass
Sat 1/23
3:45 pm-10:14 pm
1 stop9h 29m
$341
OntarioLexington
ONT Ontario - LEX Lexington Blue Grass
ONTLEX
Ontario
Sat 1/9
12:00 pm-9:21 pm
1 stop6h 21m
Lexington Blue Grass
Mon 1/25
3:45 pm-10:14 pm
1 stop9h 29m
$350
OntarioLexington
ONT Ontario - LEX Lexington Blue Grass
ONTLEX
Ontario
Sat 1/9
12:00 pm-9:21 pm
1 stop6h 21m
Lexington Blue Grass
Thu 1/21
5:55 pm-10:14 pm
1 stop7h 19m
$350
OntarioCincinnati
ONT Ontario - CVG Cincinnati Cinci./N. Kentucky
ONTCVG
Ontario
Sun 9/27
10:00 pm-8:55 am
1 stop7h 55m
Cincinnati Cinci./N. Kentucky
Mon 9/28
6:25 pm-10:24 pm
1 stop6h 59m
$357
OntarioNashville
ONT Ontario - BNA Nashville Intl
ONTBNA
Ontario
Mon 10/19
11:08 pm-9:49 am
1 stop8h 41m
Nashville Intl
Wed 10/21
5:20 am-11:06 am
1 stop7h 46m
$363
Showing 1-10 of 60 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.
ONT-BNA
ONT-SDF
ONT-EVV
ONT-LEX
ONT-CVG
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
ONT-USKY
ONT-BNA
ONT-SDF
ONT-EVV
ONT-LEX
What is the cheapest month to book a flight from Ontario to Kentucky?
Currently, October is the cheapest month in which you can book a flight from Ontario to Kentucky (average of $411). Flying from Ontario to Kentucky in January is currently the most expensive (average of $976). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Ontario to Kentucky?
Airfare is below average for this route at the moment.
Ontario to Kentucky flights typically cost between $334 and $626 in October.The cheapest round-trip price found within the last 5 days was $317 on Delta (Oct 26-Nov 3).
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 August 26, 2026.
Read through reviews of airlines operating flights from Ontario to Kentucky, such as Southwest,Delta, andUnited Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from Ontario to 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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Alternative routes for Ontario to Kentucky
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Kentucky by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Kentucky by cabin class
Find flights from Ontario to Kentucky, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Kentucky flights
Browse other Ontario and Kentucky flight options. Last updated on August 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Ontario to Kentucky flights
Consider these flights traveling from Ontario to Kentucky.
Top 4 airlines flying from Ontario to Kentucky
Discover the top 4 airlines that operate flights from Ontario to Kentucky. 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 August 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$288 | Average$503 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$288 | Average$480 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$308 | Average$449 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$350 | Average$481 | FlexibilityNo cancel fee | On-time63% |