$134+ Cheap flights from Kentucky to Idaho
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BOI
Oct 15 — Oct 221
Round-trip
1 adult, Economy
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Find cheap flights from Kentucky to Idaho with Cheapflights
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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 September 15, 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 September 15, 2026.
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Wed 12/912:43 pm -
1 stop9h 57m
Wed 12/162:13 pm -
1 stop6h 11m
Deal found 9/14![American Airlines logo]()
$219
This Southwest deal was found by Cheapflights users on 9/14. 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.
Tue 12/84:00 pm -
1 stop7h 50m
Tue 12/152:15 pm -
1 stop7h 15m
Deal found 9/14![Southwest logo]()
$220
This Southwest deal was found by Cheapflights users on 9/14. 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 12/118:15 am -
1 stop10h 55m
Tue 12/152:15 pm -
1 stop7h 15m
Deal found 9/14![Southwest logo]()
$248
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:30 pm -
1 stop6h 24m
Wed 10/71:25 pm -
1 stop7h 47m
Deal found 9/15![Delta logo]()
$276
This Southwest deal was found by Cheapflights users on 9/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/213:30 pm -
2 stops10h 25m
Sat 10/245:30 am -
2 stops9h 40m
Deal found 9/13![Southwest logo]()
$289
This American Airlines deal was found by Cheapflights users on 9/15. 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 10/137:00 am -
1 stop6h 59m
Tue 10/2012:49 pm -
1 stop6h 55m
Deal found 9/15![American Airlines logo]()
$294
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 10/306:00 am -
1 stop7h 24m
Sat 11/72:41 pm -
1 stop6h 42m
Deal found 9/15![American Airlines logo]()
$303
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 10/301:52 pm -
2 stops9h 40m
Sat 11/712:31 pm -
1 stop6h 16m
Deal found 9/15![United Airlines logo]()
$308
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/25:30 am -
1 stop6h 45m
Thu 11/52:35 pm -
1 stop12h 25m
Deal found 9/15![Southwest logo]()
$311
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:39 pm -
1 stop7h 20m
Fri 10/301:40 pm -
1 stop8h 19m
Deal found 9/15![Delta logo]()
$321
This Delta deal was found by Cheapflights users on 9/10. 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.
Mon 11/237:00 am -
1 stop7h 33m
Fri 11/272:26 pm -
1 stop6h 12m
Deal found 9/10![Delta logo]()
$352
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:00 am -
1 stop6h 31m
Sat 10/318:15 am -
1 stop9h 30m
Deal found 9/14![United Airlines logo]()
$367
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 September 15, 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 September 15, 2026.
This Southwest deal was found by Cheapflights users on 9/14. 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.
Tue 12/84:00 pm -
1 stop7h 50m
Tue 12/152:15 pm -
1 stop7h 15m
Deal found 9/14![Southwest logo]()
$220
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:39 pm -
1 stop7h 20m
Fri 10/301:40 pm -
1 stop8h 19m
Deal found 9/15![Delta logo]()
$321
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/63:20 pm -
1 stop8h 15m
Sat 1/92:45 pm -
1 stop5h 12m
Deal found 9/14![United Airlines logo]()
$367
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 9/296:00 am -
1 stop9h 00m
Sat 10/33:21 pm -
1 stop7h 20m
Deal found 9/14![American Airlines logo]()
$411
This Alaska Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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.
Sat 9/269:00 am -
2 stops16h 11m
Wed 9/3010:36 am -
2 stops10h 19m
Deal found 9/11![Alaska Airlines logo]()
$433
This Delta deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 1/274:55 pm -
1 stop8h 47m
Mon 2/13:05 pm -
1 stop6h 53m
Deal found 9/12![Delta logo]()
$333
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 10/157:00 am -
1 stop7h 18m
Sun 10/1810:50 pm -
1 stop7h 32m
Deal found 9/11![Delta logo]()
$333
This Southwest deal was found by Cheapflights users on 9/14. 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.
Wed 1/1312:35 pm -
1 stop7h 25m
Mon 1/185:55 am -
1 stop7h 15m
Deal found 9/14![Southwest logo]()
$367
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:00 am -
2 stops8h 25m
Wed 11/410:37 am -
1 stop5h 47m
Deal found 9/13![United Airlines logo]()
$386
This Delta deal was found by Cheapflights users on 9/14. 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 10/106:00 am -
1 stop8h 15m
Mon 10/1210:50 pm -
1 stop8h 59m
Deal found 9/14![Delta logo]()
$333
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/275:30 am -
1 stop6h 45m
Sat 12/55:00 am -
2 stops8h 05m
Deal found 9/15![Southwest logo]()
$381
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 2/261:22 pm -
2 stops12h 19m
Mon 3/17:02 pm -
2 stops11h 31m
Deal found 9/15![American Airlines logo]()
$426
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/235:10 am -
2 stops10h 35m
Fri 11/272:51 pm -
1 stop5h 33m
Deal found 9/10![United Airlines logo]()
$404
This Alaska Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 10/288:39 am -
1 stop8h 44m
Sat 10/3110:06 am -
1 stop9h 03m
Deal found 9/12![Alaska Airlines logo]()
$450
This Delta deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 11/256:00 am -
1 stop8h 06m
Mon 11/301:00 pm -
1 stop9h 16m
Deal found 9/12![Delta logo]()
$353
This Southwest deal was found by Cheapflights users on 9/14. 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.
Tue 9/296:25 am -
2 stops8h 40m
Sat 10/36:30 am -
2 stops8h 15m
Deal found 9/14![Southwest logo]()
$397
This American Airlines deal was found by Cheapflights users on 9/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/243:13 pm -
2 stops10h 46m
Tue 12/16:06 am -
2 stops10h 18m
Deal found 9/13![American Airlines logo]()
$443
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:00 am -
2 stops8h 25m
Sun 11/82:25 pm -
1 stop6h 08m
Deal found 9/14![United Airlines logo]()
$411
This United Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 11/104:20 pm -
1 stop8h 31m
Sat 11/145:00 am -
2 stops8h 24m
Deal found 9/12![United Airlines logo]()
$416
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/123:45 pm -
1 stop8h 52m
Wed 3/1712:40 pm -
1 stop8h 16m
Deal found 9/15![Delta logo]()
$379
This Southwest deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 10/1510:55 pm -
2 stops13h 55m
Sun 10/186:20 pm -
1 stop8h 40m
Deal found 9/11![Southwest logo]()
$444
This United Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 10/102:05 pm -
2 stops9h 30m
Sat 10/1712:26 pm -
1 stop5h 50m
Deal found 9/12![United Airlines logo]()
$416
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/246:10 am -
1 stop7h 23m
Fri 11/276:40 am -
1 stop10h 09m
Deal found 9/15![Delta logo]()
$383
This American Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 9/287:51 am -
1 stop6h 16m
Fri 10/21:00 pm -
2 stops9h 41m
Deal found 9/12![American Airlines logo]()
$532
This Southwest deal was found by Cheapflights users on 9/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/712:15 pm -
2 stops10h 40m
Sun 10/116:20 pm -
1 stop8h 40m
Deal found 9/13![Southwest logo]()
$448
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:00 am -
1 stop6h 28m
Sat 10/35:00 am -
2 stops10h 05m
Deal found 9/14![United Airlines logo]()
$416
This Delta deal was found by Cheapflights users on 9/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:28 am -
2 stops13h 29m
Mon 10/1911:10 pm -
1 stop8h 59m
Deal found 9/13![Delta logo]()
$384
This Delta deal was found by Cheapflights users on 9/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:00 am -
1 stop9h 34m
Mon 10/196:49 pm -
2 stops13h 20m
Deal found 9/13![Delta logo]()
$384
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:00 am -
1 stop7h 28m
Wed 11/112:35 pm -
1 stop6h 05m
Deal found 9/10![United Airlines logo]()
$429
This Southwest deal was found by Cheapflights users on 9/10. 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.
Sun 10/255:50 pm -
2 stops10h 05m
Mon 10/2611:20 am -
2 stops9h 15m
Deal found 9/10![Southwest logo]()
$487
Last-minute flights from Kentucky to IdahoDiscover last-minute flight deals from Kentucky to Idaho. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from Kentucky to Idaho. Data last updated September 15, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/10. 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.
Sun 9/206:30 pm -
1 stop6h 26m
Thu 9/241:00 pm -
1 stop8h 58m
Deal found 9/10![Delta logo]()
$366
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:15 am -
1 stop9h 07m
Sat 10/35:00 am -
2 stops13h 17m
Deal found 9/14![United Airlines logo]()
$338
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:30 pm -
1 stop6h 24m
Wed 10/71:25 pm -
1 stop7h 47m
Deal found 9/15![Delta logo]()
$276
This Delta deal was found by Cheapflights users on 9/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/94:02 pm -
1 stop6h 06m
Sun 10/1810:50 pm -
1 stop7h 32m
Deal found 9/13![Delta logo]()
$376
This Delta deal was found by Cheapflights users on 9/14. 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 10/106:00 am -
1 stop8h 15m
Mon 10/1210:50 pm -
1 stop8h 59m
Deal found 9/14![Delta logo]()
$333
This Expedia deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 10/128:20 am -
1 stop7h 35m
Mon 10/192:50 pm -
1 stop13h 14m
Deal found 9/12![Frontier logo]()
$378
This American Airlines deal was found by Cheapflights users on 9/15. 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 10/137:00 am -
1 stop6h 59m
Tue 10/2012:49 pm -
1 stop6h 55m
Deal found 9/15![American Airlines logo]()
$294
This Delta deal was found by Cheapflights users on 9/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:00 am -
1 stop9h 34m
Mon 10/1911:10 pm -
1 stop8h 59m
Deal found 9/13![Delta logo]()
$379
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:39 pm -
1 stop7h 20m
Fri 10/301:40 pm -
1 stop8h 19m
Deal found 9/15![Delta logo]()
$321
This Delta deal was found by Cheapflights users on 9/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:25 am -
1 stop5h 43m
Mon 10/2611:29 am -
1 stop5h 36m
Deal found 9/13![Delta logo]()
$381
This Southwest deal was found by Cheapflights users on 9/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/213:30 pm -
2 stops10h 25m
Sat 10/245:30 am -
2 stops9h 40m
Deal found 9/13![Southwest logo]()
$289
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:00 am -
1 stop6h 31m
Sat 10/318:15 am -
1 stop9h 30m
Deal found 9/14![United Airlines logo]()
$367
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 September 15, 2026.
Search for one-way flight options from Kentucky to Idaho. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:00 am -
1 stop7h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Delta logo]()
$134
This Southwest deal was found by Cheapflights users on 9/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:50 am -
1 stop6h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Southwest logo]()
$134
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:39 pm -
1 stop7h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Delta logo]()
$152
This American Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 9/245:00 am -
1 stop8h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![American Airlines logo]()
$157
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 9/246:30 pm -
1 stop6h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Delta logo]()
$167
This United Airlines deal was found by Cheapflights users on 9/15. 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 9/2312:37 pm -
2 stops10h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![United Airlines logo]()
$172
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Sat 10/2410:50 am -
2 stops12h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![United Airlines logo]()
$189
This Frontier deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 9/288:45 am -
1 stop7h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$195
This American Airlines deal was found by Cheapflights users on 9/15. 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 9/296:00 am -
1 stop9h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![American Airlines logo]()
$205
This American Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 11/107:10 am -
1 stop8h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![American Airlines logo]()
$206
This Alaska Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 9/2512:45 pm -
2 stops12h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Alaska Airlines logo]()
$217
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:35 am -
2 stops8h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Southwest logo]()
$234
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 September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $219 (American Airlines) |
One-way from | $134 (Delta) |
Popular in | December |
Cheapest in | April |
Average price | $495 |
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 7,457,451 searches. Data last updated September 15, 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
CincinnatiBoise
CVG Cincinnati Cinci./N. Kentucky - BOI Boise Air Term. Gowen Fld
CVGBOI
Cincinnati Cinci./N. Kentucky
Sat 10/24
7:00 am-12:16 pm
1 stop7h 16m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$134
LouisvilleBoise
SDF Louisville Intl - BOI Boise Air Term. Gowen Fld
SDFBOI
Louisville Intl
Tue 11/10
6:50 am-11:00 am
1 stop6h 10m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$134
LouisvilleBoise
SDF Louisville Intl - BOI Boise Air Term. Gowen Fld
SDFBOI
Louisville Intl
Wed 11/11
3:10 pm-10:35 pm
2 stops9h 25m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$139
LouisvilleBoise
SDF Louisville Intl - BOI Boise Air Term. Gowen Fld
SDFBOI
Louisville Intl
Mon 10/19
6:39 pm-11:59 pm
1 stop7h 20m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$152
NashvilleSpokane
BNA Nashville Intl - GEG Spokane
BNAGEG
Nashville Intl
Fri 11/20
2:38 pm-9:11 pm
1 stop8h 33m
Spokane
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$157
NashvilleSpokane
BNA Nashville Intl - GEG Spokane
BNAGEG
Nashville Intl
Thu 9/24
5:00 am-11:55 am
1 stop8h 55m
Spokane
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$157
NashvilleSpokane
BNA Nashville Intl - GEG Spokane
BNAGEG
Nashville Intl
Wed 9/23
6:03 am-11:55 am
1 stop7h 52m
Spokane
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$167
Quickest round-trip
NashvilleSpokane
BNA Nashville Intl - GEG Spokane
BNAGEG
Nashville Intl
Mon 9/21
7:28 pm-11:29 pm
1 stop6h 01m
Spokane
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$167
NashvilleSpokane
BNA Nashville Intl - GEG Spokane
BNAGEG
Nashville Intl
Thu 9/24
6:30 pm-10:54 pm
1 stop6h 24m
Spokane
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$167
NashvilleSpokane
BNA Nashville Intl - GEG Spokane
BNAGEG
Nashville Intl
Sat 10/3
10:25 am-8:49 pm
2 stops12h 24m
Spokane
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$172
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.
BNA-GEG
CVG-BOI
SDF-BOI
LEX-BOI
BNA-JAC
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
BNA-GEG
CVG-BOI
SDF-BOI
LEX-BOI
What is the cheapest month to book a flight from Kentucky to Idaho?
Currently, April is the cheapest month in which you can book a flight from Kentucky to Idaho (average of $386). Flying from Kentucky to Idaho in August is currently the most expensive (average of $547). 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 Kentucky to Idaho?
Airfare is below average for this route at the moment.
Kentucky to Idaho flights typically cost between $495 and $796 in October.The cheapest round-trip price found within the last 5 days was $321 on Delta (Oct 19-Oct 30).
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 September 15, 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
Food
7.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Boarding
8.1
Overall
8.0
Crew
8.6
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Boarding
8.1
Overall
8.0
Crew
8.6
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Boarding
8.1
Overall
8.0
Crew
8.6
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Boarding
8.1
Overall
8.0
Crew
8.6
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - 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
Toggle through the tabs below to find thousands of 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 September 15, 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 7,457,451 searches. Data last updated September 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$327 | Average$472 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$331 | Average$469 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$376 | Average$472 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$384 | Average$589 | FlexibilityNo cancel fee | On-time71% |