$119+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SDF
Jul 10 — Jul 171
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Kentucky with Cheapflights
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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 June 10, 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 June 10, 2026.
This American Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” 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 9/912:37 pm
ONT
- TYS
1 stop7h 45m
American Airlines
Wed 9/166:00 am
TYS
- ONT
1 stop6h 29m
American Airlines
Deal found 6/10![American Airlines logo]()
$233
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:53 pm
ONT
- TYS
2 stops12h 06m
United Airlines
Tue 11/174:25 pm
TYS
- ONT
1 stop6h 55m
United Airlines
Deal found 6/8![United Airlines logo]()
$238
This Expedia deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/64:34 pm
ONT
- CVG
1 stop24h 51m
Frontier
Thu 8/139:30 pm
CVG
- ONT
1 stop21h 24m
Frontier
Deal found 6/9![Frontier logo]()
$258
This Booking.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/51:38 pm
ONT
- CVG
1 stop27h 47m
Frontier
Tue 8/118:34 pm
CVG
- ONT
1 stop6h 16m
Frontier
Deal found 6/9![Frontier logo]()
$261
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:53 pm
ONT
- TYS
2 stops12h 06m
United Airlines
Tue 11/175:20 pm
TYS
- ONT
1 stop7h 01m
United Airlines
Deal found 6/8![United Airlines logo]()
$261
This Booking.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” 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 8/181:27 pm
ONT
- CVG
1 stop27h 08m
Frontier
Tue 9/18:40 pm
CVG
- ONT
1 stop21h 29m
Frontier
Deal found 6/10![Frontier logo]()
$270
This Frontier deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/78:17 am
ONT
- CVG
1 stop7h 05m
Frontier
Sat 8/88:26 pm
CVG
- ONT
1 stop6h 24m
Frontier
Deal found 6/9![Frontier logo]()
$271
This Frontier deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:00 am
ONT
- CVG
1 stop10h 31m
Frontier
Wed 9/28:36 pm
CVG
- ONT
1 stop6h 13m
Frontier
Deal found 6/9![Frontier logo]()
$274
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:59 pm
ONT
- TYS
1 stop7h 13m
Delta
Tue 11/175:57 pm
TYS
- ONT
1 stop7h 17m
Delta
Deal found 6/8![Delta logo]()
$278
This American Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:37 pm
ONT
- TYS
1 stop7h 45m
American Airlines
Sat 9/126:00 am
TYS
- ONT
1 stop6h 29m
American Airlines
Deal found 6/9![American Airlines logo]()
$279
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:53 pm
ONT
- TYS
2 stops12h 06m
United Airlines
Wed 11/184:25 pm
TYS
- ONT
1 stop6h 55m
United Airlines
Deal found 6/8![United Airlines logo]()
$283
This Expedia deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/78:17 am
ONT
- CVG
1 stop7h 05m
Frontier
Fri 8/149:30 pm
CVG
- ONT
1 stop13h 33m
Frontier
Deal found 6/8![Frontier logo]()
$284
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 June 10, 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 June 10, 2026.
This Delta deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/141:06 pm
ONT
- BNA
1 stop7h 44m
Delta
Sun 8/167:30 am
BNA
- ONT
1 stop6h 46m
Delta
Deal found 6/6![Delta logo]()
$331
This Booking.com deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/23:34 pm
ONT
- CVG
1 stop25h 13m
Frontier
Mon 7/69:30 pm
CVG
- ONT
1 stop20h 44m
Frontier
Deal found 6/6![Frontier logo]()
$351
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/292:55 pm
ONT
- BNA
1 stop5h 35m
Southwest
Sun 9/611:00 am
BNA
- ONT
Nonstop4h 05m
Southwest
Deal found 6/10![Southwest logo]()
$370
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:00 am
ONT
- CVG
1 stop6h 27m
United Airlines
Thu 8/1312:29 pm
CVG
- ONT
2 stops10h 32m
United Airlines
Deal found 6/8![United Airlines logo]()
$382
This American Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:34 pm
ONT
- HTS
1 stop8h 59m
American Airlines
Mon 11/162:54 pm
HTS
- ONT
1 stop9h 17m
American Airlines
Deal found 6/7![American Airlines logo]()
$438
This Delta deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1710:00 pm
ONT
- BNA
1 stop8h 41m
Delta
Fri 7/247:34 pm
BNA
- ONT
1 stop6h 14m
Delta
Deal found 6/9![Delta logo]()
$331
This Delta deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:45 am
ONT
- BNA
1 stop6h 23m
Delta
Sun 10/43:44 pm
BNA
- ONT
1 stop8h 42m
Delta
Deal found 6/6![Delta logo]()
$331
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:00 am
ONT
- TYS
1 stop7h 54m
United Airlines
Wed 8/199:00 am
TYS
- ONT
1 stop6h 50m
United Airlines
Deal found 6/9![United Airlines logo]()
$389
This Southwest deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/89:55 am
ONT
- BNA
2 stops7h 25m
Southwest
Tue 7/145:45 pm
BNA
- ONT
2 stops7h 20m
Southwest
Deal found 6/5![Southwest logo]()
$397
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2910:59 pm
ONT
- LEX
1 stop7h 27m
Delta
Tue 11/35:55 pm
LEX
- ONT
1 stop7h 19m
Delta
Deal found 6/7![Delta logo]()
$345
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:15 am
ONT
- SDF
1 stop7h 44m
United Airlines
Wed 9/210:23 am
SDF
- ONT
2 stops12h 38m
United Airlines
Deal found 6/8![United Airlines logo]()
$398
This Southwest deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:50 pm
ONT
- SDF
1 stop5h 55m
Southwest
Sat 11/149:10 am
SDF
- ONT
1 stop6h 35m
Southwest
Deal found 6/7![Southwest logo]()
$401
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2910:59 pm
ONT
- LEX
1 stop7h 27m
Delta
Fri 11/65:55 pm
LEX
- ONT
1 stop7h 19m
Delta
Deal found 6/7![Delta logo]()
$359
This Southwest deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:00 am
ONT
- BNA
2 stops7h 40m
Southwest
Sun 9/135:30 am
BNA
- ONT
1 stop6h 30m
Southwest
Deal found 6/6![Southwest logo]()
$406
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:15 am
ONT
- CVG
2 stops11h 38m
United Airlines
Wed 9/212:29 pm
CVG
- ONT
2 stops11h 24m
United Airlines
Deal found 6/9![United Airlines logo]()
$421
This Delta deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/266:00 am
ONT
- BNA
1 stop5h 44m
Delta
Tue 6/305:10 am
BNA
- ONT
1 stop7h 30m
Delta
Deal found 6/6![Delta logo]()
$360
This Southwest deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/84:35 pm
ONT
- BNA
1 stop5h 20m
Southwest
Sat 7/114:35 pm
BNA
- ONT
2 stops8h 00m
Southwest
Deal found 6/7![Southwest logo]()
$406
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/195:00 am
ONT
- SDF
1 stop6h 29m
United Airlines
Tue 9/223:25 pm
SDF
- ONT
1 stop8h 28m
United Airlines
Deal found 6/9![United Airlines logo]()
$434
This American Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:15 pm
ONT
- HTS
2 stops13h 41m
American Airlines
Mon 7/1312:21 pm
HTS
- ONT
2 stops13h 11m
American Airlines
Deal found 6/8![American Airlines logo]()
$592
This Southwest deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:00 am
ONT
- BNA
2 stops8h 50m
Southwest
Sun 8/302:10 pm
BNA
- ONT
2 stops7h 25m
Southwest
Deal found 6/9![Southwest logo]()
$407
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:05 am
ONT
- TRI
1 stop6h 15m
Delta
Wed 9/306:00 am
TRI
- ONT
1 stop7h 47m
Delta
Deal found 6/7![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:18 pm
ONT
- LEX
1 stop6h 20m
United Airlines
Mon 9/215:57 pm
LEX
- ONT
1 stop8h 02m
United Airlines
Deal found 6/8![United Airlines logo]()
$445
This American Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:05 pm
ONT
- HTS
2 stops19h 37m
American Airlines
Tue 9/2212:11 pm
HTS
- ONT
2 stops13h 26m
American Airlines
Deal found 6/8![American Airlines logo]()
$611
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/57:00 pm
ONT
- BNA
1 stop8h 00m
Southwest
Wed 7/155:25 pm
BNA
- ONT
2 stops7h 10m
Southwest
Deal found 6/8![Southwest logo]()
$422
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/266:00 am
ONT
- BNA
1 stop5h 44m
Delta
Wed 7/226:18 am
BNA
- ONT
1 stop6h 20m
Delta
Deal found 6/8![Delta logo]()
$385
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/61:18 pm
ONT
- LEX
1 stop6h 07m
United Airlines
Fri 8/149:52 am
LEX
- ONT
2 stops13h 09m
United Airlines
Deal found 6/8![United Airlines logo]()
$452
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/246:00 am
ONT
- BNA
1 stop5h 44m
Delta
Tue 7/212:51 pm
BNA
- ONT
1 stop8h 59m
Delta
Deal found 6/8![Delta logo]()
$385
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/259:15 am
ONT
- TYS
1 stop9h 30m
United Airlines
Wed 8/2610:40 am
TYS
- ONT
2 stops12h 21m
United Airlines
Deal found 6/9![United Airlines logo]()
$459
This American Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1912:35 pm
ONT
- EVV
1 stop8h 56m
American Airlines
Sun 7/265:14 pm
EVV
- ONT
1 stop7h 18m
American Airlines
Deal found 6/7![American Airlines logo]()
$710
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” 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 7/2211:48 am
ONT
- SDF
1 stop9h 38m
Delta
Thu 7/306:00 am
SDF
- ONT
1 stop7h 38m
Delta
Deal found 6/10![Delta logo]()
$404
Last-minute flights from Ontario to KentuckyDiscover last-minute flight deals from Ontario to Kentucky. Data last updated June 10, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Kentucky. Data last updated June 10, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:00 am
ONT
- BNA
1 stop27h 24m
Frontier
Sat 6/1312:09 pm
BNA
- ONT
1 stop13h 40m
Frontier
Deal found 6/5![Frontier logo]()
$323
This Gotogate deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:00 am
ONT
- BNA
1 stop27h 24m
Multiple Airlines
Wed 7/84:43 pm
BNA
- ONT
1 stop9h 08m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$325
This Mytrip deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/11:33 pm
ONT
- CVG
1 stop27h 14m
Frontier
Mon 7/138:36 pm
CVG
- ONT
1 stop6h 14m
Frontier
Deal found 6/9![Frontier logo]()
$304
This Booking.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/13:34 pm
ONT
- CVG
1 stop25h 13m
Frontier
Mon 7/69:30 pm
CVG
- ONT
1 stop20h 44m
Frontier
Deal found 6/5![Frontier logo]()
$305
This Booking.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/68:17 am
ONT
- BNA
1 stop8h 56m
Multiple Airlines
Wed 7/84:43 pm
BNA
- ONT
1 stop9h 08m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$326
This Booking.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/75:26 pm
ONT
- BNA
1 stop10h 14m
Alaska Airlines
Tue 7/144:43 pm
BNA
- ONT
1 stop9h 09m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$321
This Expedia deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/151:38 pm
ONT
- CVG
1 stop27h 47m
Frontier
Sat 7/258:26 pm
CVG
- ONT
1 stop16h 38m
Frontier
Deal found 6/6![Frontier logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/163:40 pm
ONT
- CVG
1 stop25h 45m
Frontier
Mon 7/209:30 pm
CVG
- ONT
1 stop13h 33m
Frontier
Deal found 6/6![Frontier logo]()
$313
This Super.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/168:17 am
ONT
- CVG
1 stop7h 05m
Frontier
Sun 7/268:36 pm
CVG
- ONT
1 stop16h 28m
Frontier
Deal found 6/5![Frontier logo]()
$326
This Booking.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/268:17 am
ONT
- CVG
1 stop7h 05m
Frontier
Sun 7/269:30 pm
CVG
- ONT
1 stop13h 33m
Frontier
Deal found 6/5![Frontier logo]()
$329
This Expedia deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/278:17 am
ONT
- CVG
1 stop7h 05m
Frontier
Wed 7/298:36 pm
CVG
- ONT
1 stop16h 28m
Frontier
Deal found 6/5![Frontier logo]()
$303
This Booking.com deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/291:38 pm
ONT
- CVG
1 stop27h 47m
Frontier
Mon 8/38:36 pm
CVG
- ONT
1 stop6h 14m
Frontier
Deal found 6/8![Frontier logo]()
$322
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 June 10, 2026.
Search for one-way flight options from Ontario to Kentucky. Find affordable one-way fares based on user searches. Data last updated June 10, 2026.
This American Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/252:27 pm
ONT
- BNA
1 stop6h 12m
American Airlines
Deal found 6/9![American Airlines logo]()
$119
This Frontier deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:43 am
ONT
- BNA
1 stop6h 46m
Frontier
Deal found 6/9![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/51:38 pm
ONT
- CVG
1 stop23h 18m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$123
This Super.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:43 am
ONT
- BNA
1 stop6h 46m
Frontier
Deal found 6/7![Frontier logo]()
$123
This Super.com deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/68:17 am
ONT
- BNA
1 stop8h 56m
Frontier
Deal found 6/6![Frontier logo]()
$124
This Frontier deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/38:17 am
ONT
- BNA
1 stop8h 56m
Frontier
Deal found 6/8![Frontier logo]()
$125
This Super.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/56:00 am
ONT
- BNA
1 stop27h 32m
Frontier
Deal found 6/5![Frontier logo]()
$126
This Frontier deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:00 am
ONT
- BNA
1 stop10h 47m
Frontier
Deal found 6/8![Frontier logo]()
$127
This Super.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:17 am
ONT
- CVG
1 stop7h 05m
Frontier
Deal found 6/9![Frontier logo]()
$128
This Super.com deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/13:34 pm
ONT
- BNA
1 stop24h 06m
Frontier
Deal found 6/6![Frontier logo]()
$128
This Super.com deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/216:00 am
ONT
- BNA
1 stop27h 24m
Frontier
Deal found 6/6![Frontier logo]()
$129
This Booking.com deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/153:40 pm
ONT
- BNA
1 stop21h 06m
Frontier
Deal found 6/8![Frontier logo]()
$130
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 June 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $233 (United Airlines) |
One-way from | $119 (American Airlines) |
Popular in | February |
Cheapest in | July |
Average price | $265 |
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 2,558,603 searches. Data last updated June 10, 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 - BNA
ONTBNA
Ontario
Fri 8/14
1:06 pm-10:50 pm
1 stop7h 44m
Nashville Intl
Sun 8/16
7:30 am-12:16 pm
1 stop6h 46m
$331
OntarioNashville
ONT - BNA
ONTBNA
Ontario
Fri 7/17
10:00 pm-8:41 am
1 stop8h 41m
Nashville Intl
Fri 7/24
7:34 pm-11:48 pm
1 stop6h 14m
$331
OntarioNashville
ONT - BNA
ONTBNA
Ontario
Thu 10/1
9:45 am-6:08 pm
1 stop6h 23m
Nashville Intl
Sun 10/4
3:44 pm-10:26 pm
1 stop8h 42m
$331
OntarioLexington
ONT - LEX
ONTLEX
Ontario
Thu 10/29
10:59 pm-9:26 am
1 stop7h 27m
Lexington Blue Grass
Tue 11/3
5:55 pm-10:14 pm
1 stop7h 19m
$345
OntarioCincinnati
ONT - CVG
ONTCVG
Ontario
Thu 7/2
3:34 pm-7:47 pm
1 stop25h 13m
Cincinnati Cinci./N. Kentucky
Mon 7/6
9:30 pm-3:14 pm
1 stop20h 44m
$351
OntarioLexington
ONT - LEX
ONTLEX
Ontario
Thu 10/29
10:59 pm-9:26 am
1 stop7h 27m
Lexington Blue Grass
Fri 11/6
5:55 pm-10:14 pm
1 stop7h 19m
$359
OntarioNashville
ONT - BNA
ONTBNA
Ontario
Fri 6/26
6:00 am-1:44 pm
1 stop5h 44m
Nashville Intl
Tue 6/30
5:10 am-10:40 am
1 stop7h 30m
$360
Quickest round-trip
OntarioNashville
ONT - BNA
ONTBNA
Ontario
Sat 8/29
2:55 pm-10:30 pm
1 stop5h 35m
Nashville Intl
Sun 9/6
11:00 am-1:05 pm
Nonstop4h 05m
$370
OntarioBlountville
ONT - TRI
ONTTRI
Ontario
Sat 9/26
7:05 am-4:20 pm
1 stop6h 15m
Blountville Tri Cities TN/VA
Wed 9/30
6:00 am-10:47 am
1 stop7h 47m
$379
OntarioCincinnati
ONT - CVG
ONTCVG
Ontario
Thu 8/6
5:00 am-2:27 pm
1 stop6h 27m
Cincinnati Cinci./N. Kentucky
Thu 8/13
12:29 pm-8:01 pm
2 stops10h 32m
$382
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-CVG
ONT-HTS
ONT-TYS
ONT-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
ONT-USKY
ONT-BNA
ONT-CVG
ONT-HTS
ONT-TYS
What is the cheapest month to book a flight from Ontario to Kentucky?
Currently, July is the cheapest month in which you can book a flight from Ontario to Kentucky (average of $120). Flying from Ontario to Kentucky in June is currently the most expensive (average of $382). 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?
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 June 10, 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.
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
7.9
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
7.9
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
7.9
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
7.9
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
7.9
Food
7.0
Entertainment
7.5
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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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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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 June 10, 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 2,558,603 searches. Data last updated June 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$228 | Average$429 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$238 | Average$458 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$288 | Average$452 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$341 | Average$468 | FlexibilityNo cancel fee | On-time63% |