$249+ Cheap flights from Idaho to Kaua'i
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 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LIH
May 24 — May 311
Round-trip
1 adult, Economy
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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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Cheapest flights from Idaho to Kaua'iExplore the most affordable flight options available from Idaho to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2026.
Explore the most affordable flight options available from Idaho to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 5/1810:00 am
BOI
- LIH
1 stop27h 36m
Alaska Airlines
Mon 5/2510:26 pm
LIH
- BOI
1 stop10h 36m
Alaska Airlines
Deal found 4/20![Alaska Airlines logo]()
$410
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:35 am
BOI
- LIH
2 stops12h 40m
Multiple Airlines
Tue 6/93:40 pm
LIH
- BOI
1 stop26h 53m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$414
This Delta deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 5/1812:15 pm
BOI
- LIH
1 stop10h 51m
Delta
Mon 5/259:55 pm
LIH
- BOI
2 stops15h 55m
Delta
Deal found 4/20![Delta logo]()
$444
This Alaska Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1810:00 am
BOI
- LIH
1 stop27h 36m
Alaska Airlines
Sat 5/233:40 pm
LIH
- BOI
1 stop27h 03m
Alaska Airlines
Deal found 4/21![Alaska Airlines logo]()
$447
This Southwest deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:40 am
BOI
- LIH
1 stop8h 30m
Southwest
Tue 9/19:25 pm
LIH
- BOI
1 stop13h 35m
Southwest
Deal found 4/23![Southwest logo]()
$459
This Alaska Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/261:50 pm
GEG
- LIH
1 stop22h 52m
Multiple Airlines
Tue 6/21:43 pm
LIH
- GEG
1 stop30h 09m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$463
This Delta deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 5/1812:15 pm
BOI
- LIH
1 stop10h 51m
Delta
Sat 5/239:55 pm
LIH
- BOI
1 stop13h 05m
Delta
Deal found 4/20![Delta logo]()
$468
This Delta deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 5/239:30 am
GEG
- LIH
1 stop12h 36m
Delta
Thu 5/289:55 pm
LIH
- GEG
1 stop7h 50m
Delta
Deal found 4/20![Delta logo]()
$468
This Alaska Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1810:00 am
BOI
- LIH
1 stop27h 36m
Multiple Airlines
Sat 5/234:12 pm
LIH
- BOI
2 stops14h 08m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$475
This Alaska Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 5/1610:00 am
BOI
- LIH
1 stop27h 36m
Alaska Airlines
Sat 5/233:40 pm
LIH
- BOI
1 stop27h 03m
Alaska Airlines
Deal found 4/20![Alaska Airlines logo]()
$477
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/101:26 pm
GEG
- LIH
1 stop10h 59m
Multiple Airlines
Mon 8/2411:25 am
LIH
- GEG
1 stop8h 49m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$497
This Alaska Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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.
Tue 9/111:58 am
GEG
- LIH
1 stop10h 25m
Alaska Airlines
Wed 9/29:35 pm
LIH
- GEG
1 stop10h 29m
Alaska Airlines
Deal found 4/20![Alaska Airlines logo]()
$498
Best flights from Idaho to Kaua'iDiscover carefully curated flight deals from Idaho to Kaua'i that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 24, 2026.
Discover carefully curated flight deals from Idaho to Kaua'i that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 24, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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.
Tue 5/261:59 pm
GEG
- LIH
1 stop10h 27m
Multiple Airlines
Tue 6/21:43 pm
LIH
- GEG
1 stop30h 09m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$465
This Delta deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 5/1812:15 pm
BOI
- LIH
1 stop10h 51m
Delta
Sat 5/239:55 pm
LIH
- BOI
1 stop13h 05m
Delta
Deal found 4/20![Delta logo]()
$468
This Alaska Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/184:21 pm
BOI
- LIH
1 stop9h 04m
Alaska Airlines
Wed 8/199:35 pm
LIH
- BOI
1 stop8h 17m
Alaska Airlines
Deal found 4/21![Alaska Airlines logo]()
$498
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/267:11 am
SUN
- LIH
1 stop10h 05m
United Airlines
Wed 5/272:31 pm
LIH
- SUN
1 stop28h 25m
United Airlines
Deal found 4/22![United Airlines logo]()
$671
This Delta deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/239:30 am
GEG
- LIH
1 stop12h 36m
Delta
Thu 5/289:55 pm
LIH
- GEG
1 stop11h 18m
Delta
Deal found 4/21![Delta logo]()
$468
This Alaska Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/184:21 pm
BOI
- LIH
1 stop9h 04m
Multiple Airlines
Wed 8/196:00 am
LIH
- BOI
2 stops13h 00m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$498
This Delta deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:42 pm
BOI
- LIH
1 stop10h 38m
Delta
Sat 9/269:45 pm
LIH
- BOI
1 stop10h 20m
Delta
Deal found 4/21![Delta logo]()
$500
This Alaska Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:00 am
BOI
- LIH
2 stops15h 24m
Multiple Airlines
Mon 5/1810:26 pm
LIH
- BOI
1 stop8h 37m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$504
This Alaska Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:21 am
SUN
- LIH
1 stop13h 02m
Alaska Airlines
Mon 8/319:35 pm
LIH
- SUN
1 stop8h 04m
Alaska Airlines
Deal found 4/21![Alaska Airlines logo]()
$598
This Alaska Airlines deal was found by Cheapflights users on 4/18. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/41:34 pm
GEG
- LIH
2 stops9h 55m
Multiple Airlines
Tue 5/510:26 pm
LIH
- GEG
1 stop9h 12m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$504
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:30 am
SUN
- LIH
2 stops13h 42m
Delta
Mon 8/319:45 pm
LIH
- SUN
2 stops13h 00m
Delta
Deal found 4/23![Delta logo]()
$509
This Alaska Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:00 am
BOI
- LIH
2 stops14h 32m
Multiple Airlines
Sun 5/173:40 pm
LIH
- BOI
1 stop27h 03m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$505
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:00 am
IDA
- LIH
1 stop12h 40m
United Airlines
Thu 9/177:35 pm
LIH
- IDA
1 stop10h 18m
United Airlines
Deal found 4/22![United Airlines logo]()
$707
This Alaska Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:00 am
GEG
- LIH
2 stops13h 22m
Multiple Airlines
Fri 6/53:45 pm
LIH
- GEG
1 stop19h 55m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$505
This Alaska Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/11:45 pm
IDA
- LIH
1 stop9h 38m
Alaska Airlines
Thu 9/39:35 pm
LIH
- IDA
1 stop14h 02m
Alaska Airlines
Deal found 4/23![Alaska Airlines logo]()
$727
This Alaska Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/202:16 pm
BOI
- LIH
1 stop9h 28m
Multiple Airlines
Sat 9/264:52 pm
LIH
- BOI
2 stops15h 43m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$506
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/77:30 am
SUN
- LIH
2 stops15h 36m
Delta
Mon 5/119:55 pm
LIH
- SUN
2 stops12h 39m
Delta
Deal found 4/22![Delta logo]()
$671
This Alaska Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:18 am
IDA
- LIH
1 stop12h 26m
Alaska Airlines
Thu 10/19:35 pm
LIH
- IDA
1 stop21h 21m
Alaska Airlines
Deal found 4/22![Alaska Airlines logo]()
$779
This Delta deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:10 am
IDA
- LIH
2 stops17h 10m
Delta
Sun 10/119:45 pm
LIH
- IDA
2 stops16h 29m
Delta
Deal found 4/21![Delta logo]()
$678
This Travelocity deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:18 am
IDA
- LIH
2 stops14h 12m
Multiple Airlines
Thu 10/19:26 am
LIH
- IDA
2 stops23h 40m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$615
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:30 am
SUN
- LIH
2 stops15h 36m
Delta
Sun 5/179:55 pm
LIH
- SUN
2 stops12h 39m
Delta
Deal found 4/22![Delta logo]()
$722
This Alaska Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/11:45 pm
IDA
- LIH
1 stop9h 38m
Multiple Airlines
Thu 9/312:35 pm
LIH
- IDA
2 stops20h 31m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$667
This Alaska Airlines deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” 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.
Sun 7/264:14 pm
IDA
- LIH
1 stop22h 46m
Multiple Airlines
Sun 8/26:16 pm
LIH
- IDA
2 stops14h 50m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$749
This Delta deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1612:17 pm
LWS
- LIH
2 stops33h 44m
Delta
Thu 6/259:55 pm
LIH
- LWS
1 stop22h 24m
Delta
Deal found 4/21![Delta logo]()
$1,011
This Delta deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/159:14 am
LWS
- LIH
1 stop12h 47m
Delta
Thu 6/259:55 pm
LIH
- LWS
1 stop22h 24m
Delta
Deal found 4/21![Delta logo]()
$1,020
This Delta deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/179:14 am
LWS
- LIH
2 stops35h 25m
Delta
Fri 6/269:55 pm
LIH
- LWS
2 stops34h 41m
Delta
Deal found 4/21![Delta logo]()
$1,126
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/169:14 am
LWS
- LIH
1 stop12h 47m
Delta
Fri 6/268:35 pm
LIH
- LWS
2 stops12h 01m
Delta
Deal found 4/22![Delta logo]()
$1,265
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/229:14 am
LWS
- LIH
1 stop12h 47m
Delta
Thu 7/28:35 pm
LIH
- LWS
2 stops12h 01m
Delta
Deal found 4/22![Delta logo]()
$1,340
This Delta deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/179:14 am
LWS
- LIH
1 stop12h 47m
Delta
Sat 6/278:35 pm
LIH
- LWS
2 stops12h 01m
Delta
Deal found 4/21![Delta logo]()
$1,521
Last-minute flights from Idaho to Kaua'iDiscover last-minute flight deals from Idaho to Kaua'i. Data last updated April 24, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to Kaua'i. Data last updated April 24, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:05 am
GEG
- LIH
1 stop9h 06m
Alaska Airlines
Wed 5/610:46 am
LIH
- GEG
1 stop9h 25m
Alaska Airlines
Deal found 4/24![Alaska Airlines logo]()
$498
This Alaska Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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.
Sun 5/105:50 am
BOI
- LIH
1 stop9h 21m
Alaska Airlines
Fri 5/1510:26 pm
LIH
- BOI
1 stop10h 36m
Alaska Airlines
Deal found 4/20![Alaska Airlines logo]()
$498
This Alaska Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/105:50 am
BOI
- LIH
1 stop9h 21m
Alaska Airlines
Sun 5/173:40 pm
LIH
- BOI
1 stop27h 03m
Alaska Airlines
Deal found 4/21![Alaska Airlines logo]()
$500
This Alaska Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 5/1610:00 am
BOI
- LIH
1 stop27h 36m
Alaska Airlines
Sat 5/233:40 pm
LIH
- BOI
1 stop27h 03m
Alaska Airlines
Deal found 4/20![Alaska Airlines logo]()
$477
This Alaska Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 5/1810:00 am
BOI
- LIH
1 stop27h 36m
Alaska Airlines
Mon 5/2510:26 pm
LIH
- BOI
1 stop10h 36m
Alaska Airlines
Deal found 4/20![Alaska Airlines logo]()
$410
This Delta deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 5/1812:15 pm
BOI
- LIH
1 stop10h 51m
Delta
Mon 5/259:55 pm
LIH
- BOI
2 stops15h 55m
Delta
Deal found 4/20![Delta logo]()
$444
This Alaska Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1810:00 am
BOI
- LIH
1 stop27h 36m
Alaska Airlines
Sat 5/233:40 pm
LIH
- BOI
1 stop27h 03m
Alaska Airlines
Deal found 4/21![Alaska Airlines logo]()
$447
This Delta deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 5/1812:15 pm
BOI
- LIH
1 stop10h 51m
Delta
Sat 5/239:55 pm
LIH
- BOI
1 stop13h 05m
Delta
Deal found 4/20![Delta logo]()
$468
This Alaska Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1810:00 am
BOI
- LIH
1 stop27h 36m
Multiple Airlines
Sat 5/234:12 pm
LIH
- BOI
2 stops14h 08m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$475
This Delta deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 5/239:30 am
GEG
- LIH
1 stop12h 36m
Delta
Thu 5/289:55 pm
LIH
- GEG
1 stop7h 50m
Delta
Deal found 4/20![Delta logo]()
$468
This Alaska Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/261:50 pm
GEG
- LIH
1 stop22h 52m
Multiple Airlines
Tue 6/21:43 pm
LIH
- GEG
1 stop30h 09m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$463
This Alaska Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:00 am
GEG
- LIH
1 stop9h 02m
Alaska Airlines
Fri 6/53:45 pm
LIH
- GEG
1 stop19h 55m
Alaska Airlines
Deal found 4/22![Alaska Airlines logo]()
$500
One-way flights from Idaho to Kaua'iSearch for one-way flight options from Idaho to Kaua'i. Find affordable one-way fares based on user searches. Data last updated April 24, 2026.
Search for one-way flight options from Idaho to Kaua'i. Find affordable one-way fares based on user searches. Data last updated April 24, 2026.
This Delta deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” 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 5/171:11 pm
GEG
- LIH
1 stop8h 55m
Delta
Deal found 4/19![Delta logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” 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.
Sun 5/177:00 am
GEG
- LIH
1 stop32h 31m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 9/264:14 pm
IDA
- LIH
2 stops9h 43m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$309
This Alaska Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 9/261:45 pm
IDA
- LIH
1 stop9h 59m
Alaska Airlines
Deal found 4/20![Alaska Airlines logo]()
$323
This Delta deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:30 am
SUN
- LIH
2 stops15h 50m
Delta
Deal found 4/21![Delta logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1810:28 am
SUN
- LIH
2 stops13h 03m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/126:23 am
BOI
- LIH
2 stops12h 50m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$375
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/122:05 pm
BOI
- LIH
1 stop9h 37m
United Airlines
Deal found 4/22![United Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/264:04 pm
IDA
- LIH
1 stop27h 36m
United Airlines
Deal found 4/22![United Airlines logo]()
$438
This Southwest deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/126:00 am
BOI
- LIH
2 stops14h 10m
Southwest
Deal found 4/23![Southwest logo]()
$448
This American Airlines deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” 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 9/267:00 am
IDA
- LIH
3 stops17h 12m
American Airlines
Deal found 4/19![American Airlines logo]()
$765
This Alaska Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1810:28 am
SUN
- LIH
1 stop32h 16m
Alaska Airlines
Deal found 4/21![Alaska Airlines logo]()
$798
Find flight deals from Idaho to Kaua'i
Keep the following information in mind while searching for Idaho to Kaua'i flight deals. Data was last updated April 24, 2026.
Round-trip from | $410 (Alaska Airlines) |
|---|---|
One-way from | $249 (Delta) |
Popular in | December |
Cheapest in | January |
Average price | $573 |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho to Kaua'i 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 April 24, 2026.
Use the filters below to find and compare flights from Idaho to Kaua'i that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SpokaneLihue
GEG - LIH
GEGLIH
Spokane
Tue 5/26
1:59 pm-9:26 pm
1 stop10h 27m
Lihue
Tue 6/2
1:43 pm-10:52 pm
1 stop30h 09m
$465
BoiseLihue
BOI - LIH
BOILIH
Boise Air Term. Gowen Fld
Mon 5/18
12:15 pm-7:06 pm
1 stop10h 51m
Lihue
Sat 5/23
9:55 pm-3:00 pm
1 stop13h 05m
$468
SpokaneLihue
GEG - LIH
GEGLIH
Spokane
Sat 5/23
9:30 am-7:06 pm
1 stop12h 36m
Lihue
Thu 5/28
9:55 pm-12:13 pm
1 stop11h 18m
$468
Quickest round-trip
BoiseLihue
BOI - LIH
BOILIH
Boise Air Term. Gowen Fld
Tue 8/18
4:21 pm-9:25 pm
1 stop9h 04m
Lihue
Wed 8/19
9:35 pm-9:52 am
1 stop8h 17m
$498
BoiseLihue
BOI - LIH
BOILIH
Boise Air Term. Gowen Fld
Tue 8/18
4:21 pm-9:25 pm
1 stop9h 04m
Lihue
Wed 8/19
6:00 am-11:00 pm
2 stops13h 00m
$498
BoiseLihue
BOI - LIH
BOILIH
Boise Air Term. Gowen Fld
Sun 9/20
12:42 pm-7:20 pm
1 stop10h 38m
Lihue
Sat 9/26
9:45 pm-12:05 pm
1 stop10h 20m
$500
BoiseLihue
BOI - LIH
BOILIH
Boise Air Term. Gowen Fld
Sun 5/10
6:00 am-5:24 pm
2 stops15h 24m
Lihue
Mon 5/18
10:26 pm-11:03 am
1 stop8h 37m
$504
SpokaneLihue
GEG - LIH
GEGLIH
Spokane
Mon 5/4
1:34 pm-8:29 pm
2 stops9h 55m
Lihue
Tue 5/5
10:26 pm-10:38 am
1 stop9h 12m
$504
BoiseLihue
BOI - LIH
BOILIH
Boise Air Term. Gowen Fld
Sun 5/10
6:00 am-4:32 pm
2 stops14h 32m
Lihue
Sun 5/17
3:40 pm-10:43 pm
1 stop27h 03m
$505
SpokaneLihue
GEG - LIH
GEGLIH
Spokane
Fri 5/29
6:00 am-4:22 pm
2 stops13h 22m
Lihue
Fri 6/5
3:45 pm-2:40 pm
1 stop19h 55m
$505
Showing 1-10 of 41 resultsSorted by cheapest first
Best time to book a flight from Idaho to Kaua'i
Have a flexible travel schedule? Discover the best time to fly to Kaua'i from Idaho with our price prediction graph.
BOI-LIH
GEG-LIH
IDA-LIH
SUN-LIH
LWS-LIH
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 Idaho to Kaua'i
USID-zzFUS
BOI-LIH
GEG-LIH
IDA-LIH
SUN-LIH
How far ahead should I book a flight from Idaho to Kaua'i?
The best time to book flights from Idaho to Kaua'i is 24 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Idaho to Kaua'i?
Currently, February is the cheapest month in which you can book a flight from Idaho to Kaua'i (average of $163). Flying from Idaho to Kaua'i in September is currently the most expensive (average of $421). 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.
Related info for your journey
Find useful and relevant information for your journey from Idaho to Kaua'i. 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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Complete your trip
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Alternative routes for Idaho to Kaua'i
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Kaua'i by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Idaho to Kaua'i by cabin class
Find flights from Idaho to Kaua'i, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Idaho and Kaua'i flights
Browse other Idaho and Kaua'i flight options. Last updated on April 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Kaua'i
Find the right flight back to Idaho after your stay in Kaua'i
Idaho to Kaua'i flights
Consider these flights traveling from Idaho to Kaua'i.
Top 5 airlines flying from Idaho to Kaua'i
Discover the top 5 airlines that operate flights from Idaho to Kaua'i. 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 April 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$227 | Average$668 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$229 | Average$482 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$240 | Average$643 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$379 | Average$664 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$410 | Average$581 | FlexibilityNo cancel fee | On-time63% |