$253+ 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 2/16. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BOI
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from Kentucky to Idaho with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Kentucky to Idaho
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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 October 30, 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 October 30, 2026.
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/2610:49 am -
2 stops9h 50m
Sat 12/52:29 pm -
1 stop6h 36m
Deal found 10/27![Delta logo]()
$316
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/2610:49 am -
2 stops9h 50m
Fri 12/43:00 pm -
1 stop6h 02m
Deal found 10/27![Delta logo]()
$336
This deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:55 pm -
1 stop7h 04m
Mon 11/233:00 pm -
1 stop5h 46m
Deal found 10/27![Delta logo]()
$364
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/267:50 am -
2 stops12h 49m
Tue 12/11:47 pm -
1 stop7h 18m
Deal found 10/27![Delta logo]()
$369
This American Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 12/103:54 pm -
1 stop8h 52m
Sun 12/131:39 pm -
1 stop8h 12m
Deal found 10/29![American Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 12/35:00 am -
2 stops10h 28m
Mon 12/712:16 pm -
1 stop8h 27m
Deal found 10/29![American Airlines logo]()
$384
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:35 am -
2 stops13h 03m
Mon 12/77:18 pm -
2 stops12h 42m
Deal found 10/29![Delta logo]()
$389
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/256:42 am -
1 stop7h 51m
Sat 12/52:29 pm -
1 stop6h 36m
Deal found 10/27![Delta logo]()
$415
This deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:55 pm -
1 stop7h 04m
Mon 11/233:00 pm -
1 stop5h 46m
Deal found 10/27![Delta logo]()
$417
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/256:42 am -
1 stop7h 51m
Wed 12/212:20 pm -
2 stops8h 42m
Deal found 10/27![Delta logo]()
$420
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:35 am -
2 stops11h 29m
Thu 12/35:15 am -
2 stops9h 38m
Deal found 10/27![Delta logo]()
$425
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/124:10 pm -
1 stop7h 33m
Mon 11/161:35 pm -
1 stop7h 59m
Deal found 10/28![American Airlines logo]()
$429
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 October 30, 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 October 30, 2026.
This American Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/107:00 am -
1 stop8h 52m
Sun 12/131:39 pm -
1 stop8h 12m
Deal found 10/26![American Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/107:35 am -
2 stops13h 03m
Sun 12/131:07 pm -
2 stops8h 57m
Deal found 10/29![Delta logo]()
$389
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 1/286:40 am -
1 stop6h 20m
Sun 1/317:30 am -
1 stop8h 20m
Deal found 10/27![Southwest logo]()
$412
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:27 am -
2 stops12h 42m
Mon 11/162:35 pm -
1 stop5h 49m
Deal found 10/28![United Airlines logo]()
$434
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 1/284:05 pm -
2 stops9h 44m
Sun 1/315:30 am -
1 stop7h 55m
Deal found 10/27![Delta logo]()
$417
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/124:10 pm -
1 stop7h 33m
Mon 11/161:35 pm -
1 stop7h 59m
Deal found 10/28![American Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” 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 4/15:30 am -
2 stops10h 00m
Sat 4/102:43 pm -
1 stop5h 38m
Deal found 10/30![United Airlines logo]()
$442
This American Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:50 am -
2 stops13h 09m
Tue 11/176:36 am -
2 stops13h 00m
Deal found 10/29![American Airlines logo]()
$439
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:35 am -
2 stops11h 29m
Fri 12/43:00 pm -
1 stop6h 02m
Deal found 10/27![Delta logo]()
$440
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/309:00 am -
1 stop8h 31m
Tue 2/22:30 pm -
1 stop6h 00m
Deal found 10/25![United Airlines logo]()
$469
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 3/810:40 am -
1 stop7h 05m
Thu 3/116:00 am -
2 stops10h 10m
Deal found 10/29![Southwest logo]()
$522
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:00 am -
1 stop9h 44m
Mon 12/71:47 pm -
1 stop8h 17m
Deal found 10/29![Delta logo]()
$469
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 1/62:05 pm -
2 stops9h 28m
Sat 1/96:20 am -
1 stop6h 11m
Deal found 10/29![United Airlines logo]()
$488
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 3/157:00 am -
1 stop7h 39m
Thu 3/1811:30 pm -
1 stop8h 24m
Deal found 10/29![Delta logo]()
$487
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/68:20 am -
1 stop7h 08m
Sat 1/92:30 pm -
1 stop5h 45m
Deal found 10/26![United Airlines logo]()
$514
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 3/146:36 am -
1 stop8h 06m
Thu 3/187:30 pm -
2 stops12h 47m
Deal found 10/29![Delta logo]()
$492
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/68:20 am -
1 stop7h 09m
Sat 1/92:35 pm -
1 stop5h 40m
Deal found 10/25![United Airlines logo]()
$534
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” 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 11/145:30 am -
2 stops11h 08m
Wed 11/185:30 pm -
2 stops19h 11m
Deal found 10/30![United Airlines logo]()
$674
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/115:30 am -
2 stops8h 58m
Sun 11/155:30 pm -
2 stops19h 11m
Deal found 10/27![United Airlines logo]()
$817
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 12/289:00 am -
1 stop8h 38m
Sun 1/34:20 pm -
1 stop27h 59m
Deal found 10/27![United Airlines logo]()
$1,057
Last-minute flights from Kentucky to IdahoDiscover last-minute flight deals from Kentucky to Idaho. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Kentucky to Idaho. Data last updated October 30, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/124:10 pm -
1 stop7h 33m
Mon 11/161:35 pm -
1 stop7h 59m
Deal found 10/28![American Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:27 am -
2 stops12h 42m
Mon 11/162:35 pm -
1 stop5h 49m
Deal found 10/28![United Airlines logo]()
$434
This American Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:50 am -
2 stops13h 09m
Tue 11/176:36 am -
2 stops13h 00m
Deal found 10/29![American Airlines logo]()
$439
This deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:55 pm -
1 stop7h 04m
Mon 11/233:00 pm -
1 stop5h 46m
Deal found 10/27![Delta logo]()
$364
This deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:55 pm -
1 stop7h 04m
Mon 11/233:00 pm -
1 stop5h 46m
Deal found 10/27![Delta logo]()
$417
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/256:42 am -
1 stop7h 51m
Sat 12/52:29 pm -
1 stop6h 36m
Deal found 10/27![Delta logo]()
$415
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/256:42 am -
1 stop7h 51m
Wed 12/212:20 pm -
2 stops8h 42m
Deal found 10/27![Delta logo]()
$420
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/256:42 am -
1 stop7h 51m
Fri 12/43:00 pm -
1 stop6h 02m
Deal found 10/27![Delta logo]()
$435
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/2610:49 am -
2 stops9h 50m
Sat 12/52:29 pm -
1 stop6h 36m
Deal found 10/27![Delta logo]()
$316
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/2610:49 am -
2 stops9h 50m
Fri 12/43:00 pm -
1 stop6h 02m
Deal found 10/27![Delta logo]()
$336
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/267:50 am -
2 stops12h 49m
Tue 12/11:47 pm -
1 stop7h 18m
Deal found 10/27![Delta logo]()
$369
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/268:00 am -
1 stop7h 47m
Sat 12/52:48 pm -
1 stop5h 37m
Deal found 10/27![United Airlines logo]()
$431
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 October 30, 2026.
Search for one-way flight options from Kentucky to Idaho. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 2/166:13 am -
1 stop9h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![American Airlines logo]()
$253
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:05 am -
1 stop8h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Delta logo]()
$314
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 2/164:00 pm -
2 stops8h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Delta logo]()
$315
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” 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 2/162:00 pm -
2 stops9h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![United Airlines logo]()
$318
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 12/212:00 pm -
2 stops9h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![United Airlines logo]()
$354
This American Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/163:54 pm -
1 stop8h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![American Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/163:38 pm -
2 stops10h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Delta logo]()
$384
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:57 pm -
1 stop6h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![United Airlines logo]()
$391
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/129:09 pm -
3 stops52h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$457
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/163:38 pm -
3 stops34h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$856
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 October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $316 (Delta) |
One-way from | $253 (American Airlines) |
Popular in | May |
Cheapest in | December |
Average price | $518 |
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 October 30, 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
LouisvilleHailey
SDF Louisville Intl - SUN Hailey Sun Valley-Friedman
SDFSUN
Louisville Intl
Tue 2/16
6:13 am-1:19 pm
1 stop9h 06m
Hailey Sun Valley-Friedman
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$253
LouisvilleHailey
SDF Louisville Intl - SUN Hailey Sun Valley-Friedman
SDFSUN
Louisville Intl
Mon 12/21
7:00 am-12:08 pm
1 stop7h 08m
Hailey Sun Valley-Friedman
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$253
LouisvilleHailey
SDF Louisville Intl - SUN Hailey Sun Valley-Friedman
SDFSUN
Louisville Intl
Tue 2/16
4:00 pm-10:02 pm
2 stops8h 02m
Hailey Sun Valley-Friedman
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$315
LouisvilleHailey
SDF Louisville Intl - SUN Hailey Sun Valley-Friedman
SDFSUN
Louisville Intl
Tue 2/16
2:00 pm-9:30 pm
2 stops9h 30m
Hailey Sun Valley-Friedman
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$318
LouisvilleBoise
SDF Louisville Intl - BOI Boise Air Term. Gowen Fld
SDFBOI
Louisville Intl
Thu 11/12
10:49 am-9:59 pm
2 stops13h 10m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$319
LexingtonBoise
LEX Lexington Blue Grass - BOI Boise Air Term. Gowen Fld
LEXBOI
Lexington Blue Grass
Thu 12/10
7:00 am-1:52 pm
1 stop8h 52m
Boise Air Term. Gowen Fld
Sun 12/13
1:39 pm-11:51 pm
1 stop8h 12m
$379
LexingtonBoise
LEX Lexington Blue Grass - BOI Boise Air Term. Gowen Fld
LEXBOI
Lexington Blue Grass
Mon 11/16
3:38 pm-12:14 am
2 stops10h 36m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$384
LexingtonBoise
LEX Lexington Blue Grass - BOI Boise Air Term. Gowen Fld
LEXBOI
Lexington Blue Grass
Thu 12/10
7:35 am-6:38 pm
2 stops13h 03m
Boise Air Term. Gowen Fld
Sun 12/13
1:07 pm-12:04 am
2 stops8h 57m
$389
Quickest round-trip
LouisvilleBoise
SDF Louisville Intl - BOI Boise Air Term. Gowen Fld
SDFBOI
Louisville Intl
Thu 11/5
5:57 pm-10:51 pm
1 stop6h 54m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$391
LouisvilleBoise
SDF Louisville Intl - BOI Boise Air Term. Gowen Fld
SDFBOI
Louisville Intl
Thu 1/28
6:40 am-11:00 am
1 stop6h 20m
Boise Air Term. Gowen Fld
Sun 1/31
7:30 am-5:50 pm
1 stop8h 20m
$412
Showing 1-10 of 29 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.
SDF-BOI
LEX-BOI
SDF-IDA
LEX-IDA
PAH-IDA
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
SDF-BOI
LEX-BOI
SDF-IDA
LEX-IDA
What is the cheapest month to book a flight from Kentucky to Idaho?
Currently, December is the cheapest month in which you can book a flight from Kentucky to Idaho (average of $300). Flying from Kentucky to Idaho in October is currently the most expensive (average of $622). 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 October 30, 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
Food
7.0
Entertainment
7.4
Overall
7.9
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Boarding
8.1
Food
7.0
Entertainment
7.4
Overall
7.9
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Boarding
8.1
Food
7.0
Entertainment
7.4
Overall
7.9
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Boarding
8.1
Food
7.0
Entertainment
7.4
Overall
7.9
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Boarding
8.1
Food
7.0
Entertainment
7.4
Overall
7.9
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
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 October 30, 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 October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$133 | Average$428 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$341 | Average$545 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$376 | Average$495 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$401 | Average$608 | FlexibilityNo cancel fee | On-time71% |