$117+ Cheap flights from Kentucky to Idaho
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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BOI
Apr 18 — Apr 251
Round-trip
1 adult, Economy
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Cheapest flights from Kentucky to IdahoExplore the most affordable flight options available from Kentucky to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 19, 2026.
Explore the most affordable flight options available from Kentucky to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 19, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/296:58 pm
CVG
- GEG
1 stop7h 13m
Alaska Airlines
Sat 5/26:00 am
GEG
- CVG
1 stop8h 58m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/297:00 am
CVG
- GEG
2 stops10h 49m
Delta
Sat 5/26:00 am
GEG
- CVG
1 stop6h 42m
Delta
Deal found 3/16![Delta logo]()
$282
This Delta deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/156:00 am
BNA
- GEG
1 stop9h 04m
Delta
Tue 4/215:30 am
GEG
- BNA
1 stop6h 33m
Delta
Deal found 3/18![Delta logo]()
$297
This Southwest deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 5/25:25 am
BNA
- GEG
1 stop6h 40m
Southwest
Tue 5/52:40 pm
GEG
- BNA
1 stop12h 35m
Southwest
Deal found 3/14![Southwest logo]()
$302
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 6/47:27 pm
BNA
- GEG
1 stop6h 08m
Delta
Tue 6/91:30 pm
GEG
- BNA
1 stop6h 51m
Delta
Deal found 3/17![Delta logo]()
$304
This Delta deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/166:30 am
CVG
- GEG
1 stop8h 57m
Delta
Tue 4/219:30 am
GEG
- CVG
1 stop6h 30m
Delta
Deal found 3/14![Delta logo]()
$305
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 6/47:27 pm
BNA
- GEG
1 stop6h 08m
Delta
Mon 6/81:00 pm
GEG
- BNA
1 stop9h 02m
Delta
Deal found 3/17![Delta logo]()
$311
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/97:00 am
BNA
- BOI
1 stop7h 05m
Delta
Tue 4/143:23 pm
BOI
- BNA
1 stop6h 29m
Delta
Deal found 3/17![Delta logo]()
$311
This Delta deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/174:58 pm
BNA
- GEG
1 stop8h 17m
Delta
Mon 4/209:30 am
GEG
- BNA
2 stops9h 56m
Delta
Deal found 3/14![Delta logo]()
$312
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 5/14:58 pm
BNA
- BOI
1 stop8h 19m
Delta
Wed 5/610:41 am
BOI
- BNA
2 stops9h 45m
Delta
Deal found 3/16![Delta logo]()
$312
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/143:30 pm
BNA
- BOI
1 stop8h 08m
American Airlines
Tue 4/212:14 pm
BOI
- BNA
2 stops8h 19m
American Airlines
Deal found 3/17![American Airlines logo]()
$316
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 5/141:58 pm
BNA
- BOI
2 stops10h 57m
Delta
Tue 5/199:16 pm
BOI
- BNA
2 stops10h 19m
Delta
Deal found 3/16![Delta logo]()
$317
Best flights from Kentucky to IdahoDiscover carefully curated flight deals from Kentucky to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 19, 2026.
Discover carefully curated flight deals from Kentucky to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 19, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 4/296:58 pm
CVG
- GEG
1 stop7h 13m
Alaska Airlines
Sat 5/26:00 am
GEG
- CVG
1 stop8h 58m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/297:00 am
CVG
- GEG
2 stops10h 49m
Delta
Sat 5/26:00 am
GEG
- CVG
1 stop6h 42m
Delta
Deal found 3/16![Delta logo]()
$282
This Southwest deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 6/47:20 pm
BNA
- GEG
1 stop8h 00m
Southwest
Tue 6/92:55 pm
GEG
- BNA
1 stop6h 25m
Southwest
Deal found 3/18![Southwest logo]()
$304
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 5/24:00 pm
BNA
- JAC
1 stop5h 58m
United Airlines
Thu 5/72:30 pm
JAC
- BNA
1 stop6h 27m
United Airlines
Deal found 3/17![United Airlines logo]()
$382
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/236:07 am
SDF
- JAC
1 stop8h 34m
American Airlines
Mon 5/111:25 pm
JAC
- SDF
1 stop7h 46m
American Airlines
Deal found 3/17![American Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 6/47:27 pm
BNA
- GEG
1 stop6h 08m
Delta
Tue 6/910:45 pm
GEG
- BNA
1 stop7h 48m
Delta
Deal found 3/18![Delta logo]()
$304
This Southwest deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/96:45 am
BNA
- BOI
2 stops12h 35m
Southwest
Mon 4/137:55 pm
BOI
- BNA
1 stop8h 05m
Southwest
Deal found 3/14![Southwest logo]()
$362
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/234:30 pm
TYS
- GEG
1 stop7h 41m
United Airlines
Mon 4/275:05 am
GEG
- TYS
1 stop7h 01m
United Airlines
Deal found 3/17![United Airlines logo]()
$399
This Southwest deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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.
Mon 4/137:20 pm
BNA
- BOI
1 stop6h 40m
Southwest
Mon 4/207:55 pm
BOI
- BNA
1 stop8h 05m
Southwest
Deal found 3/14![Southwest logo]()
$365
This Alaska Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/105:21 pm
BNA
- BOI
1 stop7h 37m
Alaska Airlines
Tue 4/148:28 pm
BOI
- BNA
1 stop8h 12m
Alaska Airlines
Deal found 3/17![Alaska Airlines logo]()
$430
This Delta deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 5/57:56 am
SDF
- JAC
2 stops10h 17m
Delta
Sat 5/97:00 am
JAC
- SDF
1 stop6h 48m
Delta
Deal found 3/14![Delta logo]()
$394
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 6/36:32 pm
CVG
- GEG
1 stop7h 48m
American Airlines
Wed 6/242:08 pm
GEG
- CVG
1 stop6h 51m
American Airlines
Deal found 3/17![American Airlines logo]()
$443
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 6/43:00 pm
BNA
- BOI
2 stops8h 55m
Southwest
Mon 6/83:25 pm
BOI
- BNA
2 stops9h 20m
Southwest
Deal found 3/16![Southwest logo]()
$369
This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/164:30 pm
TYS
- BOI
1 stop8h 05m
United Airlines
Sun 4/195:00 am
BOI
- TYS
1 stop8h 06m
United Airlines
Deal found 3/18![United Airlines logo]()
$438
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/237:05 am
SDF
- JAC
2 stops11h 08m
Delta
Mon 5/117:45 am
JAC
- SDF
2 stops11h 33m
Delta
Deal found 3/17![Delta logo]()
$399
This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 3/285:15 am
BNA
- JAC
1 stop8h 23m
American Airlines
Sat 4/41:44 pm
JAC
- BNA
2 stops8h 58m
American Airlines
Deal found 3/16![American Airlines logo]()
$464
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/186:00 am
BNA
- JAC
2 stops11h 13m
Delta
Wed 4/221:09 pm
JAC
- BNA
1 stop7h 17m
Delta
Deal found 3/16![Delta logo]()
$403
This Alaska Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:29 pm
CVG
- GEG
1 stop28h 55m
Alaska Airlines
Mon 4/202:47 pm
GEG
- CVG
1 stop24h 42m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$488
This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 6/32:06 pm
CVG
- GEG
2 stops12h 45m
United Airlines
Wed 6/247:00 am
GEG
- CVG
1 stop6h 49m
United Airlines
Deal found 3/18![United Airlines logo]()
$448
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 6/47:20 pm
BNA
- BOI
1 stop7h 25m
Southwest
Sun 6/79:00 pm
BOI
- BNA
1 stop7h 00m
Southwest
Deal found 3/16![Southwest logo]()
$412
This American Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/1612:11 pm
SDF
- JAC
2 stops26h 30m
American Airlines
Thu 4/231:25 pm
JAC
- SDF
1 stop6h 16m
American Airlines
Deal found 3/14![American Airlines logo]()
$492
This Delta deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/165:40 am
TYS
- GEG
2 stops10h 24m
Delta
Mon 4/207:38 pm
GEG
- TYS
2 stops12h 39m
Delta
Deal found 3/18![Delta logo]()
$409
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 6/29:47 am
BNA
- JAC
2 stops9h 07m
United Airlines
Thu 6/111:42 pm
JAC
- BNA
1 stop6h 31m
United Airlines
Deal found 3/17![United Airlines logo]()
$464
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 5/157:20 pm
BNA
- BOI
1 stop6h 40m
Southwest
Wed 5/205:15 pm
BOI
- BNA
2 stops14h 35m
Southwest
Deal found 3/17![Southwest logo]()
$431
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/234:04 pm
TRI
- GEG
1 stop8h 27m
Delta
Sun 4/2610:40 pm
GEG
- TRI
1 stop8h 05m
Delta
Deal found 3/17![Delta logo]()
$409
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/158:20 am
TYS
- JAC
2 stops11h 33m
United Airlines
Wed 7/228:00 am
JAC
- TYS
2 stops12h 19m
United Airlines
Deal found 3/17![United Airlines logo]()
$472
This Southwest deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 5/157:20 pm
BNA
- GEG
1 stop7h 10m
Southwest
Sun 5/245:30 pm
GEG
- BNA
1 stop9h 35m
Southwest
Deal found 3/14![Southwest logo]()
$432
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/15:00 am
TRI
- GEG
2 stops9h 44m
American Airlines
Sun 4/56:00 am
GEG
- TRI
1 stop6h 45m
American Airlines
Deal found 3/17![American Airlines logo]()
$524
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/74:34 pm
BNA
- GEG
1 stop7h 03m
Delta
Fri 4/102:15 pm
GEG
- BNA
1 stop6h 36m
Delta
Deal found 3/16![Delta logo]()
$412
This United Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/293:26 pm
CVG
- GEG
1 stop8h 45m
United Airlines
Sat 5/25:00 am
GEG
- CVG
2 stops9h 04m
United Airlines
Deal found 3/15![United Airlines logo]()
$474
Last-minute flights from Kentucky to IdahoDiscover last-minute flight deals from Kentucky to Idaho. Data last updated March 19, 2026 and is based on user searches.
Discover last-minute flight deals from Kentucky to Idaho. Data last updated March 19, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/64:58 pm
BNA
- GEG
1 stop9h 05m
Delta
Thu 4/910:40 pm
GEG
- BNA
1 stop7h 55m
Delta
Deal found 3/16![Delta logo]()
$311
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/97:00 am
BNA
- BOI
1 stop7h 05m
Delta
Tue 4/143:23 pm
BOI
- BNA
1 stop6h 29m
Delta
Deal found 3/17![Delta logo]()
$311
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/93:30 pm
BNA
- BOI
1 stop8h 24m
American Airlines
Tue 4/142:14 pm
BOI
- BNA
2 stops8h 19m
American Airlines
Deal found 3/17![American Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/143:30 pm
BNA
- BOI
1 stop8h 08m
American Airlines
Tue 4/212:14 pm
BOI
- BNA
2 stops8h 19m
American Airlines
Deal found 3/17![American Airlines logo]()
$316
This American Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” 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 4/145:00 am
BNA
- JAC
1 stop8h 41m
American Airlines
Tue 4/211:25 pm
JAC
- BNA
1 stop5h 35m
American Airlines
Deal found 3/15![American Airlines logo]()
$331
This Delta deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/156:00 am
BNA
- GEG
1 stop9h 04m
Delta
Tue 4/215:30 am
GEG
- BNA
1 stop6h 33m
Delta
Deal found 3/18![Delta logo]()
$297
This American Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” 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 4/157:22 am
BNA
- GEG
1 stop8h 57m
American Airlines
Tue 4/216:34 am
GEG
- BNA
2 stops11h 26m
American Airlines
Deal found 3/15![American Airlines logo]()
$302
This Delta deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/166:30 am
CVG
- GEG
1 stop8h 57m
Delta
Tue 4/219:30 am
GEG
- CVG
1 stop6h 30m
Delta
Deal found 3/14![Delta logo]()
$305
This American Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/167:36 am
CVG
- GEG
1 stop7h 56m
American Airlines
Tue 4/211:22 pm
GEG
- CVG
1 stop7h 05m
American Airlines
Deal found 3/14![American Airlines logo]()
$338
This Delta deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/174:58 pm
BNA
- GEG
1 stop8h 17m
Delta
Mon 4/209:30 am
GEG
- BNA
2 stops9h 56m
Delta
Deal found 3/14![Delta logo]()
$312
This Alaska Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/296:58 pm
CVG
- GEG
1 stop7h 13m
Alaska Airlines
Sat 5/26:00 am
GEG
- CVG
1 stop8h 58m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/297:00 am
CVG
- GEG
2 stops10h 49m
Delta
Sat 5/26:00 am
GEG
- CVG
1 stop6h 42m
Delta
Deal found 3/16![Delta logo]()
$282
One-way flights from Kentucky to IdahoSearch for one-way flight options from Kentucky to Idaho. Find affordable one-way fares based on user searches. Data last updated March 19, 2026.
Search for one-way flight options from Kentucky to Idaho. Find affordable one-way fares based on user searches. Data last updated March 19, 2026.
This CheapOair deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:17 pm
BNA
- BOI
1 stop18h 13m
Frontier
Deal found 3/17![Frontier logo]()
$117
This Expedia deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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.
Tue 5/1912:55 pm
CVG
- GEG
1 stop25h 43m
Frontier
Deal found 3/17![Frontier logo]()
$131
This CheapOair deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/18:20 pm
BNA
- BOI
1 stop17h 10m
Frontier
Deal found 3/18![Frontier logo]()
$137
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/86:00 am
BNA
- GEG
1 stop9h 10m
Delta
Deal found 3/17![Delta logo]()
$149
This Expedia deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 6/158:40 pm
CVG
- GEG
1 stop16h 55m
Frontier
Deal found 3/17![Frontier logo]()
$151
This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/74:35 pm
BNA
- BOI
1 stop7h 03m
American Airlines
Deal found 3/16![American Airlines logo]()
$156
This Delta deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/256:00 am
BNA
- GEG
1 stop9h 04m
Delta
Deal found 3/14![Delta logo]()
$159
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 5/163:36 pm
CVG
- GEG
1 stop8h 40m
United Airlines
Deal found 3/17![United Airlines logo]()
$159
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/76:50 am
BNA
- BOI
2 stops9h 35m
Southwest
Deal found 3/16![Southwest logo]()
$161
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/155:35 am
CVG
- GEG
2 stops10h 29m
Delta
Deal found 3/17![Delta logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 6/47:00 am
TYS
- BOI
1 stop7h 30m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$165
This Delta deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/277:20 pm
BNA
- GEG
1 stop6h 14m
Delta
Deal found 3/14![Delta logo]()
$166
Find flight deals from Kentucky to Idaho
Keep the following information in mind while searching for Kentucky to Idaho flight deals. Data was last updated March 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $277 (American Airlines) |
One-way from | $117 (CheapOair) |
Popular in | December |
Cheapest in | September |
Average price | $553 |
Cheapflights Fare Finder
Customize your flight search to find flights from Kentucky to Idaho 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 March 19, 2026.
Use the filters below to find and compare flights from Kentucky to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
CincinnatiSpokane
CVG - GEG
CVGGEG
Cincinnati Cinci./N. Kentucky
Wed 4/29
6:58 pm-11:11 pm
1 stop7h 13m
Spokane
Sat 5/2
6:00 am-5:58 pm
1 stop8h 58m
$277
CincinnatiSpokane
CVG - GEG
CVGGEG
Cincinnati Cinci./N. Kentucky
Wed 4/29
7:00 am-2:49 pm
2 stops10h 49m
Spokane
Sat 5/2
6:00 am-3:42 pm
1 stop6h 42m
$282
NashvilleSpokane
BNA - GEG
BNAGEG
Nashville Intl
Thu 6/4
7:20 pm-1:20 am
1 stop8h 00m
Spokane
Tue 6/9
2:55 pm-11:20 pm
1 stop6h 25m
$304
NashvilleSpokane
BNA - GEG
BNAGEG
Nashville Intl
Thu 6/4
7:27 pm-11:35 pm
1 stop6h 08m
Spokane
Tue 6/9
10:45 pm-8:33 am
1 stop7h 48m
$304
NashvilleBoise
BNA - BOI
BNABOI
Nashville Intl
Thu 4/9
6:45 am-6:20 pm
2 stops12h 35m
Boise Air Term. Gowen Fld
Mon 4/13
7:55 pm-5:00 am
1 stop8h 05m
$362
NashvilleBoise
BNA - BOI
BNABOI
Nashville Intl
Mon 4/13
7:20 pm-1:00 am
1 stop6h 40m
Boise Air Term. Gowen Fld
Mon 4/20
7:55 pm-5:00 am
1 stop8h 05m
$365
NashvilleBoise
BNA - BOI
BNABOI
Nashville Intl
Thu 6/4
3:00 pm-10:55 pm
2 stops8h 55m
Boise Air Term. Gowen Fld
Mon 6/8
3:25 pm-1:45 am
2 stops9h 20m
$369
Quickest round-trip
NashvilleJackson
BNA - JAC
BNAJAC
Nashville Intl
Sat 5/2
4:00 pm-8:58 pm
1 stop5h 58m
Jackson Hole
Thu 5/7
2:30 pm-9:57 pm
1 stop6h 27m
$382
LouisvilleJackson
SDF - JAC
SDFJAC
Louisville Intl
Thu 4/23
6:07 am-12:41 pm
1 stop8h 34m
Jackson Hole
Mon 5/11
1:25 pm-11:11 pm
1 stop7h 46m
$389
LouisvilleJackson
SDF - JAC
SDFJAC
Louisville Intl
Tue 5/5
7:56 am-4:13 pm
2 stops10h 17m
Jackson Hole
Sat 5/9
7:00 am-3:48 pm
1 stop6h 48m
$394
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Kentucky to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Kentucky with our price prediction graph.
CVG-GEG
BNA-GEG
BNA-JAC
SDF-JAC
BNA-BOI
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Kentucky to Idaho
USKY-USID
CVG-GEG
BNA-GEG
BNA-JAC
SDF-JAC
What is the cheapest month to book a flight from Kentucky to Idaho?
Currently, August is the cheapest month in which you can book a flight from Kentucky to Idaho (average of $196). Flying from Kentucky to Idaho in February is currently the most expensive (average of $401). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Idaho
Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated March 19, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Kentucky to Idaho have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Overall
8.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Overall
8.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Overall
8.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Overall
8.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Overall
8.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Related info for your journey
Find useful and relevant information for your journey from Kentucky to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Kentucky to Idaho
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Idaho by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Kentucky to Idaho by cabin class
Find flights from Kentucky to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Kentucky and Idaho flights
Browse other Kentucky and Idaho flight options. Last updated on March 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Idaho
Find the right flight back to Kentucky after your stay in Idaho
Kentucky to Idaho flights
Consider these flights traveling from Kentucky to Idaho.
Top 4 airlines flying from Kentucky to Idaho
Discover the top 4 airlines that operate flights from Kentucky to Idaho. 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 March 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$196 | Average$388 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$287 | Average$470 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$327 | Average$519 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$346 | Average$416 | FlexibilityNo cancel fee | On-time63% |