$212+ 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LIH
Aug 29 — Sep 51
Round-trip
1 adult, Economy
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Find cheap flights from Idaho to Kaua'i 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Idaho to Kaua'i
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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 July 30, 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 July 30, 2026.
This Delta deal was found by Cheapflights users on 7/27. 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 8/2512:23 pm
BOI
- LIH
1 stop10h 53m
Delta
Tue 9/19:55 pm
LIH
- BOI
1 stop8h 00m
Delta
Deal found 7/27![Delta logo]()
$404
This Delta deal was found by Cheapflights users on 7/27. 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 9/2211:10 am
GEG
- LIH
1 stop11h 00m
Delta
Wed 9/309:54 pm
LIH
- GEG
1 stop7h 43m
Delta
Deal found 7/27![Delta logo]()
$404
This Expedia deal was found by Cheapflights users on 7/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:47 pm
BOI
- LIH
1 stop19h 23m
Multiple Airlines
Tue 9/85:35 pm
LIH
- BOI
2 stops12h 21m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$410
This Alaska Airlines deal was found by Cheapflights users on 7/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/221:36 pm
GEG
- LIH
1 stop9h 38m
Multiple Airlines
Wed 9/308:45 pm
LIH
- GEG
2 stops12h 54m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$410
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:23 pm
BOI
- LIH
1 stop10h 53m
Delta
Tue 9/89:54 pm
LIH
- BOI
1 stop9h 43m
Delta
Deal found 7/28![Delta logo]()
$424
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:09 am
GEG
- LIH
1 stop11h 07m
Delta
Tue 8/259:55 pm
LIH
- GEG
1 stop7h 39m
Delta
Deal found 7/28![Delta logo]()
$424
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:16 pm
BOI
- LIH
2 stops11h 41m
Multiple Airlines
Thu 9/179:35 pm
LIH
- BOI
1 stop8h 21m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$430
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:07 am
GEG
- LIH
2 stops13h 06m
Multiple Airlines
Wed 8/2612:47 pm
LIH
- GEG
1 stop8h 12m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$430
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/64:28 pm
BOI
- LIH
2 stops9h 29m
Multiple Airlines
Thu 9/106:00 am
LIH
- BOI
2 stops10h 20m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$435
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/11:15 pm
BOI
- LIH
1 stop10h 08m
Alaska Airlines
Fri 9/49:35 pm
LIH
- BOI
1 stop11h 01m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$437
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:05 am
BOI
- LIH
2 stops13h 15m
Multiple Airlines
Tue 9/158:45 pm
LIH
- BOI
2 stops13h 17m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$442
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:00 am
BOI
- LIH
1 stop9h 20m
Multiple Airlines
Wed 9/98:45 pm
LIH
- BOI
2 stops11h 50m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$443
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 July 30, 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 July 30, 2026.
This Delta deal was found by Cheapflights users on 7/26. 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.
Wed 9/2310:34 am
BOI
- LIH
1 stop12h 36m
Delta
Wed 9/309:54 pm
LIH
- BOI
1 stop8h 00m
Delta
Deal found 7/26![Delta logo]()
$404
This Alaska Airlines deal was found by Cheapflights users on 7/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/221:36 pm
GEG
- LIH
2 stops11h 21m
Multiple Airlines
Wed 9/307:21 pm
LIH
- GEG
2 stops14h 18m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$415
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/210:13 am
BOI
- LIH
1 stop28h 53m
Alaska Airlines
Tue 11/34:50 pm
LIH
- BOI
1 stop25h 31m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$498
This Delta deal was found by Cheapflights users on 7/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2211:10 am
GEG
- LIH
1 stop11h 00m
Delta
Wed 9/309:54 pm
LIH
- GEG
1 stop7h 43m
Delta
Deal found 7/25![Delta logo]()
$404
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/206:00 am
BOI
- LIH
1 stop9h 20m
Multiple Airlines
Thu 9/246:00 am
LIH
- BOI
2 stops10h 20m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$450
This Delta deal was found by Cheapflights users on 7/27. 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 9/2911:10 am
GEG
- LIH
1 stop11h 00m
Delta
Tue 10/139:51 pm
LIH
- GEG
1 stop11h 27m
Delta
Deal found 7/27![Delta logo]()
$459
This Alaska Airlines deal was found by Cheapflights users on 7/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/305:12 am
GEG
- LIH
1 stop9h 08m
Multiple Airlines
Wed 10/147:21 pm
LIH
- GEG
2 stops14h 33m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$465
This Alaska Airlines deal was found by Cheapflights users on 7/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/98:47 am
BOI
- LIH
1 stop16h 11m
Alaska Airlines
Wed 12/1612:21 pm
LIH
- BOI
1 stop8h 38m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$514
This Alaska Airlines deal was found by Cheapflights users on 7/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/285:12 am
GEG
- LIH
1 stop9h 08m
Multiple Airlines
Tue 10/68:03 pm
LIH
- GEG
2 stops12h 36m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$465
This Delta deal was found by Cheapflights users on 7/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2412:23 pm
BOI
- LIH
1 stop10h 53m
Delta
Tue 9/89:54 pm
LIH
- BOI
1 stop13h 22m
Delta
Deal found 7/25![Delta logo]()
$481
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:20 am
BOI
- LIH
2 stops15h 29m
Multiple Airlines
Thu 9/1011:25 am
LIH
- BOI
1 stop8h 30m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$476
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/174:03 pm
IDA
- LIH
1 stop9h 53m
Alaska Airlines
Sun 1/2411:31 pm
LIH
- IDA
1 stop12h 58m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$578
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:35 am
BOI
- LIH
1 stop12h 41m
Delta
Thu 9/39:55 pm
LIH
- BOI
1 stop8h 00m
Delta
Deal found 7/28![Delta logo]()
$482
This Alaska Airlines deal was found by Cheapflights users on 7/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:05 am
BOI
- LIH
2 stops11h 25m
Multiple Airlines
Sat 9/267:21 pm
LIH
- BOI
2 stops13h 14m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$486
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:59 pm
BOI
- LIH
1 stop29h 17m
Delta
Thu 9/109:54 pm
LIH
- BOI
1 stop8h 00m
Delta
Deal found 7/30![Delta logo]()
$503
This Alaska Airlines deal was found by Cheapflights users on 7/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:33 am
SUN
- LIH
1 stop13h 46m
Alaska Airlines
Wed 11/1111:24 pm
LIH
- SUN
1 stop8h 27m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$636
This Alaska Airlines deal was found by Cheapflights users on 7/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/31:53 pm
IDA
- LIH
1 stop11h 26m
Alaska Airlines
Wed 11/411:24 pm
LIH
- IDA
1 stop12h 53m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$665
This Alaska Airlines deal was found by Cheapflights users on 7/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/31:53 pm
IDA
- LIH
1 stop11h 26m
Multiple Airlines
Wed 11/46:00 am
LIH
- IDA
2 stops14h 42m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$561
This Alaska Airlines deal was found by Cheapflights users on 7/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/261:58 pm
IDA
- LIH
1 stop11h 29m
Multiple Airlines
Fri 10/308:45 pm
LIH
- IDA
2 stops14h 35m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$564
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:20 am
SUN
- LIH
1 stop15h 05m
Alaska Airlines
Mon 8/1712:31 pm
LIH
- SUN
1 stop17h 07m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$731
This Alaska Airlines deal was found by Cheapflights users on 7/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:33 am
SUN
- LIH
2 stops10h 57m
Multiple Airlines
Wed 11/1111:24 pm
LIH
- SUN
1 stop8h 27m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$625
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/174:03 pm
IDA
- LIH
1 stop9h 53m
Multiple Airlines
Sun 1/242:17 pm
LIH
- IDA
2 stops29h 22m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$668
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:43 pm
SUN
- LIH
2 stops23h 30m
Multiple Airlines
Mon 8/175:02 pm
LIH
- SUN
2 stops12h 36m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$687
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/196:48 pm
SUN
- LIH
2 stops19h 01m
Multiple Airlines
Wed 1/208:00 pm
LIH
- SUN
2 stops10h 38m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$849
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/124:14 pm
IDA
- LIH
2 stops25h 44m
Multiple Airlines
Sun 8/1610:30 am
LIH
- IDA
2 stops22h 36m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$936
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/129:23 am
LWS
- LIH
1 stop12h 53m
Delta
Sun 8/168:41 pm
LIH
- LWS
2 stops12h 02m
Delta
Deal found 7/28![Delta logo]()
$1,681
Last-minute flights from Idaho to Kaua'iDiscover last-minute flight deals from Idaho to Kaua'i. Data last updated July 30, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to Kaua'i. Data last updated July 30, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:09 am
GEG
- LIH
1 stop11h 07m
Delta
Tue 8/259:55 pm
LIH
- GEG
1 stop7h 39m
Delta
Deal found 7/28![Delta logo]()
$424
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:07 am
GEG
- LIH
2 stops13h 06m
Multiple Airlines
Wed 8/2612:47 pm
LIH
- GEG
1 stop8h 12m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$430
This Delta deal was found by Cheapflights users on 7/27. 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 8/1812:23 pm
BOI
- LIH
1 stop10h 53m
Delta
Mon 8/249:55 pm
LIH
- BOI
1 stop13h 23m
Delta
Deal found 7/27![Delta logo]()
$462
This Gotogate deal was found by Cheapflights users on 7/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:57 am
BOI
- LIH
1 stop8h 58m
Multiple Airlines
Mon 8/245:02 pm
LIH
- BOI
2 stops15h 34m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$468
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:00 am
GEG
- LIH
1 stop8h 55m
Multiple Airlines
Mon 8/313:42 pm
LIH
- GEG
1 stop18h 40m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$472
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:00 am
GEG
- LIH
1 stop8h 55m
Multiple Airlines
Fri 8/289:35 pm
LIH
- GEG
1 stop10h 28m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$479
This Trip.com deal was found by Cheapflights users on 7/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:23 am
BOI
- LIH
2 stops14h 07m
Multiple Airlines
Tue 9/15:35 pm
LIH
- BOI
2 stops12h 17m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$404
This Trip.com deal was found by Cheapflights users on 7/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/232:17 pm
BOI
- LIH
1 stop9h 06m
Alaska Airlines
Tue 9/19:35 pm
LIH
- BOI
1 stop8h 17m
Alaska Airlines
Deal found 7/24![Alaska Airlines logo]()
$417
This Expedia deal was found by Cheapflights users on 7/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:47 pm
BOI
- LIH
1 stop19h 23m
Multiple Airlines
Tue 9/85:35 pm
LIH
- BOI
2 stops12h 21m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$410
This Priceline deal was found by Cheapflights users on 7/25. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:00 am
BOI
- LIH
1 stop9h 20m
Multiple Airlines
Mon 8/313:42 pm
LIH
- BOI
1 stop26h 45m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$458
This Delta deal was found by Cheapflights users on 7/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2412:23 pm
BOI
- LIH
1 stop10h 53m
Delta
Tue 9/89:54 pm
LIH
- BOI
1 stop13h 22m
Delta
Deal found 7/25![Delta logo]()
$481
This Delta deal was found by Cheapflights users on 7/26. 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.
Fri 8/289:25 am
GEG
- LIH
1 stop12h 51m
Delta
Fri 9/119:54 pm
LIH
- GEG
1 stop11h 26m
Delta
Deal found 7/26![Delta logo]()
$481
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 July 30, 2026.
Search for one-way flight options from Idaho to Kaua'i. Find affordable one-way fares based on user searches. Data last updated July 30, 2026.
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:17 pm
BOI
- LIH
1 stop10h 53m
Delta
Deal found 7/28![Delta logo]()
$212
This Priceline deal was found by Cheapflights users on 7/28. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/302:16 pm
BOI
- LIH
2 stops11h 41m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$231
This Alaska Airlines deal was found by Cheapflights users on 7/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/262:01 pm
IDA
- LIH
1 stop10h 13m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$279
This Alaska Airlines deal was found by Cheapflights users on 7/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/263:57 pm
IDA
- LIH
2 stops22h 13m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$283
This Travelocity deal was found by Cheapflights users on 7/25. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/108:23 pm
BOI
- LIH
1 stop18h 45m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$287
This Alaska Airlines deal was found by Cheapflights users on 7/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:04 pm
BOI
- LIH
2 stops19h 39m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$288
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/84:18 pm
BOI
- LIH
1 stop9h 09m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/261:00 pm
GEG
- LIH
1 stop9h 13m
Delta
Deal found 7/28![Delta logo]()
$289
This Expedia deal was found by Cheapflights users on 7/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/410:21 am
SUN
- LIH
1 stop13h 02m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$289
This American Airlines deal was found by Cheapflights users on 7/29. 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 8/287:00 am
IDA
- LIH
2 stops17h 09m
American Airlines
Deal found 7/29![American Airlines logo]()
$295
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/265:00 am
GEG
- LIH
2 stops33h 23m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$300
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Fri 8/287:00 am
IDA
- LIH
1 stop12h 40m
United Airlines
Deal found 7/29![United Airlines logo]()
$312
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 July 30, 2026.
Round-trip from | $404 (Delta) |
|---|---|
One-way from | $212 (Delta) |
Popular in | December |
Cheapest in | January |
Average price | $633 |
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 July 30, 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
BoiseLihue
BOI - LIH
BOILIH
Boise Air Term. Gowen Fld
Wed 9/23
10:34 am-7:10 pm
1 stop12h 36m
Lihue
Wed 9/30
9:54 pm-9:54 am
1 stop8h 00m
$404
Quickest round-trip
SpokaneLihue
GEG - LIH
GEGLIH
Spokane
Tue 9/22
11:10 am-7:10 pm
1 stop11h 00m
Lihue
Wed 9/30
9:54 pm-8:37 am
1 stop7h 43m
$404
SpokaneLihue
GEG - LIH
GEGLIH
Spokane
Tue 9/22
1:36 pm-9:57 pm
2 stops11h 21m
Lihue
Wed 9/30
7:21 pm-12:39 pm
2 stops14h 18m
$415
BoiseLihue
BOI - LIH
BOILIH
Boise Air Term. Gowen Fld
Sun 9/20
6:00 am-11:20 am
1 stop9h 20m
Lihue
Thu 9/24
6:00 am-8:20 pm
2 stops10h 20m
$450
SpokaneLihue
GEG - LIH
GEGLIH
Spokane
Tue 9/29
11:10 am-7:10 pm
1 stop11h 00m
Lihue
Tue 10/13
9:51 pm-12:18 pm
1 stop11h 27m
$459
SpokaneLihue
GEG - LIH
GEGLIH
Spokane
Wed 9/30
5:12 am-11:20 am
1 stop9h 08m
Lihue
Wed 10/14
7:21 pm-12:54 pm
2 stops14h 33m
$465
SpokaneLihue
GEG - LIH
GEGLIH
Spokane
Mon 9/28
5:12 am-11:20 am
1 stop9h 08m
Lihue
Tue 10/6
8:03 pm-11:39 am
2 stops12h 36m
$465
BoiseLihue
BOI - LIH
BOILIH
Boise Air Term. Gowen Fld
Tue 9/1
7:20 am-6:49 pm
2 stops15h 29m
Lihue
Thu 9/10
11:25 am-11:55 pm
1 stop8h 30m
$476
BoiseLihue
BOI - LIH
BOILIH
Boise Air Term. Gowen Fld
Mon 8/24
12:23 pm-7:16 pm
1 stop10h 53m
Lihue
Tue 9/8
9:54 pm-3:16 pm
1 stop13h 22m
$481
BoiseLihue
BOI - LIH
BOILIH
Boise Air Term. Gowen Fld
Thu 8/27
10:35 am-7:16 pm
1 stop12h 41m
Lihue
Thu 9/3
9:55 pm-9:55 am
1 stop8h 00m
$482
Showing 1-10 of 47 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
What is the cheapest month to book a flight from Idaho to Kaua'i?
Currently, January is the cheapest month in which you can book a flight from Idaho to Kaua'i (average of $388). Flying from Idaho to Kaua'i in December is currently the most expensive (average of $945). 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 far ahead should I book a flight from Idaho to Kaua'i?
The best time to book flights from Idaho to Kaua'i is 21 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.
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.
Alternative routes
Complete your trip
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Top destinations
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 July 30, 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 4 airlines flying from Idaho to Kaua'i
Discover the top 4 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 July 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$239 | Average$494 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$348 | Average$619 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$410 | Average$581 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$452 | Average$670 | FlexibilityNo cancel fee | On-time69% |