$170+ 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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LIH
Jul 11 — Jul 181
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 June 11, 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 June 11, 2026.
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 12/910:38 am
BOI
- LIH
1 stop12h 44m
Delta
Wed 12/1610:45 pm
LIH
- BOI
1 stop12h 37m
Delta
Deal found 6/8![Delta logo]()
$340
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:17 am
GEG
- LIH
1 stop12h 44m
Delta
Tue 10/69:45 pm
LIH
- GEG
1 stop9h 53m
Delta
Deal found 6/11![Delta logo]()
$340
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/811:30 am
BOI
- LIH
2 stops11h 52m
Delta
Mon 11/1610:45 pm
LIH
- BOI
1 stop12h 37m
Delta
Deal found 6/11![Delta logo]()
$346
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:05 am
GEG
- LIH
2 stops13h 35m
Delta
Wed 9/309:50 pm
LIH
- GEG
1 stop9h 40m
Delta
Deal found 6/10![Delta logo]()
$378
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1010:23 am
BOI
- LIH
1 stop12h 57m
Delta
Thu 9/179:50 pm
LIH
- BOI
1 stop13h 22m
Delta
Deal found 6/10![Delta logo]()
$390
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:10 am
GEG
- LIH
1 stop13h 12m
Delta
Tue 10/209:45 pm
LIH
- GEG
1 stop7h 57m
Delta
Deal found 6/11![Delta logo]()
$395
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/252:17 pm
BOI
- LIH
1 stop9h 06m
Alaska Airlines
Wed 8/269:35 pm
LIH
- BOI
1 stop8h 17m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$398
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:20 am
GEG
- LIH
1 stop14h 20m
Delta
Wed 10/149:45 pm
LIH
- GEG
1 stop7h 57m
Delta
Deal found 6/11![Delta logo]()
$401
This Alaska Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” 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 8/257:05 am
BOI
- LIH
2 stops12h 37m
Multiple Airlines
Wed 8/269:35 pm
LIH
- BOI
1 stop11h 01m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$404
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:59 am
GEG
- LIH
1 stop10h 24m
Alaska Airlines
Wed 8/269:35 pm
LIH
- GEG
1 stop10h 26m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2010:35 am
BOI
- LIH
1 stop12h 26m
Delta
Sat 9/269:50 pm
LIH
- BOI
1 stop8h 04m
Delta
Deal found 6/10![Delta logo]()
$410
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:12 am
GEG
- LIH
2 stops12h 18m
Multiple Airlines
Wed 8/269:35 pm
LIH
- GEG
1 stop10h 26m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$410
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 June 11, 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 June 11, 2026.
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/82:35 pm
BOI
- LIH
1 stop8h 47m
Delta
Mon 11/1610:45 pm
LIH
- BOI
1 stop10h 21m
Delta
Deal found 6/11![Delta logo]()
$340
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:59 am
GEG
- LIH
1 stop10h 24m
Alaska Airlines
Wed 8/269:35 pm
LIH
- GEG
1 stop10h 26m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$404
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:12 am
GEG
- LIH
2 stops12h 18m
Multiple Airlines
Wed 8/269:35 pm
LIH
- GEG
1 stop10h 26m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$410
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:17 am
GEG
- LIH
1 stop12h 44m
Delta
Tue 10/69:45 pm
LIH
- GEG
1 stop9h 53m
Delta
Deal found 6/11![Delta logo]()
$340
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:05 am
GEG
- LIH
2 stops13h 35m
Delta
Wed 9/309:50 pm
LIH
- GEG
1 stop9h 40m
Delta
Deal found 6/10![Delta logo]()
$378
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:00 am
BOI
- LIH
2 stops11h 58m
Multiple Airlines
Wed 8/266:00 am
LIH
- BOI
2 stops13h 00m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$461
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:10 am
GEG
- LIH
1 stop13h 12m
Delta
Thu 10/229:45 pm
LIH
- GEG
1 stop12h 17m
Delta
Deal found 6/10![Delta logo]()
$395
This Alaska Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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
Wed 9/23:42 pm
LIH
- BOI
1 stop26h 45m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$506
This Alaska Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” 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 9/225:12 am
GEG
- LIH
2 stops11h 46m
Multiple Airlines
Wed 9/308:12 am
LIH
- GEG
2 stops11h 13m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$461
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:20 am
GEG
- LIH
1 stop14h 20m
Delta
Wed 10/149:45 pm
LIH
- GEG
1 stop7h 57m
Delta
Deal found 6/11![Delta logo]()
$401
This Alaska Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 9/12:17 pm
BOI
- LIH
1 stop9h 06m
Multiple Airlines
Wed 9/26:00 am
LIH
- BOI
2 stops13h 00m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$464
This Delta deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” 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 9/208:25 am
BOI
- LIH
2 stops13h 15m
Delta
Sat 9/269:50 pm
LIH
- BOI
1 stop9h 44m
Delta
Deal found 6/9![Delta logo]()
$416
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/284:27 pm
BOI
- LIH
1 stop8h 58m
Multiple Airlines
Mon 8/108:45 pm
LIH
- BOI
2 stops13h 22m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$485
This Alaska Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 10/2711:53 am
SUN
- LIH
1 stop13h 37m
Alaska Airlines
Wed 10/2810:31 pm
LIH
- SUN
1 stop8h 40m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$613
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:05 am
BOI
- LIH
2 stops13h 15m
Multiple Airlines
Thu 10/86:30 pm
LIH
- BOI
2 stops11h 27m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$510
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/210:35 am
BOI
- LIH
1 stop12h 26m
Delta
Thu 10/89:45 pm
LIH
- BOI
1 stop8h 20m
Delta
Deal found 6/10![Delta logo]()
$483
This Alaska Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 9/2310:28 am
SUN
- LIH
2 stops12h 21m
Multiple Airlines
Mon 10/510:31 pm
LIH
- SUN
1 stop8h 40m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$524
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/282:01 pm
IDA
- LIH
1 stop10h 13m
Alaska Airlines
Tue 9/299:35 pm
LIH
- IDA
1 stop13h 45m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$730
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 7/1312:20 pm
BOI
- LIH
1 stop10h 38m
Delta
Tue 7/219:55 pm
LIH
- BOI
1 stop7h 58m
Delta
Deal found 6/8![Delta logo]()
$518
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/283:57 pm
IDA
- LIH
2 stops22h 13m
Multiple Airlines
Tue 9/2912:35 pm
LIH
- IDA
2 stops20h 49m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$525
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:53 am
SUN
- LIH
2 stops25h 59m
Multiple Airlines
Wed 10/2810:31 pm
LIH
- SUN
1 stop8h 40m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$564
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 9/237:20 am
SUN
- LIH
2 stops14h 20m
Delta
Fri 10/99:45 pm
LIH
- SUN
2 stops11h 00m
Delta
Deal found 6/8![Delta logo]()
$611
This Alaska Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 9/2510:28 am
SUN
- LIH
2 stops13h 44m
Multiple Airlines
Tue 10/610:31 pm
LIH
- SUN
1 stop8h 40m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$578
Last-minute flights from Idaho to Kaua'iDiscover last-minute flight deals from Idaho to Kaua'i. Data last updated June 11, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to Kaua'i. Data last updated June 11, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1110:36 am
BOI
- LIH
1 stop12h 26m
Delta
Mon 6/159:55 pm
LIH
- BOI
1 stop8h 01m
Delta
Deal found 6/8![Delta logo]()
$498
This Expedia deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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.
Wed 7/85:00 am
GEG
- LIH
1 stop9h 08m
Multiple Airlines
Wed 7/1512:31 pm
LIH
- GEG
1 stop8h 28m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$518
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2710:35 am
BOI
- LIH
1 stop12h 23m
Delta
Thu 8/69:55 pm
LIH
- BOI
1 stop13h 23m
Delta
Deal found 6/10![Delta logo]()
$429
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/274:27 pm
BOI
- LIH
1 stop8h 58m
Alaska Airlines
Tue 8/410:28 pm
LIH
- BOI
1 stop10h 19m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$458
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2712:20 pm
BOI
- LIH
1 stop10h 38m
Delta
Mon 8/109:55 pm
LIH
- BOI
1 stop13h 23m
Delta
Deal found 6/10![Delta logo]()
$461
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/274:27 pm
BOI
- LIH
1 stop8h 58m
Alaska Airlines
Wed 8/510:28 pm
LIH
- BOI
1 stop9h 58m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$479
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/274:27 pm
BOI
- LIH
1 stop8h 58m
Multiple Airlines
Thu 8/65:02 pm
LIH
- BOI
2 stops12h 35m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$485
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2712:20 pm
BOI
- LIH
1 stop10h 38m
Delta
Fri 8/79:55 pm
LIH
- BOI
1 stop13h 23m
Delta
Deal found 6/10![Delta logo]()
$491
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:00 am
BOI
- LIH
2 stops16h 58m
Delta
Thu 8/69:55 pm
LIH
- BOI
1 stop13h 23m
Delta
Deal found 6/10![Delta logo]()
$468
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:23 am
BOI
- LIH
2 stops12h 50m
Multiple Airlines
Tue 8/410:28 pm
LIH
- BOI
1 stop10h 19m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$464
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/3112:20 pm
BOI
- LIH
1 stop10h 38m
Delta
Thu 8/69:55 pm
LIH
- BOI
1 stop13h 23m
Delta
Deal found 6/10![Delta logo]()
$483
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/314:27 pm
BOI
- LIH
1 stop8h 58m
Alaska Airlines
Tue 8/410:28 pm
LIH
- BOI
1 stop10h 19m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$512
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 June 11, 2026.
Search for one-way flight options from Idaho to Kaua'i. Find affordable one-way fares based on user searches. Data last updated June 11, 2026.
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 8/1012:23 pm
BOI
- LIH
1 stop10h 53m
Delta
Deal found 6/8![Delta logo]()
$170
This Delta deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” 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 11/158:45 am
BOI
- LIH
2 stops14h 37m
Delta
Deal found 6/9![Delta logo]()
$176
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 8/106:00 am
BOI
- LIH
2 stops14h 10m
Southwest
Deal found 6/8![Southwest logo]()
$205
This Priceline deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/711:59 am
GEG
- LIH
1 stop10h 24m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$239
This Priceline deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/75:12 am
GEG
- LIH
2 stops11h 46m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$245
This Delta deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” 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 6/2910:36 am
BOI
- LIH
1 stop12h 26m
Delta
Deal found 6/9![Delta logo]()
$249
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 7/2312:20 pm
BOI
- LIH
1 stop10h 38m
Delta
Deal found 6/8![Delta logo]()
$259
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 8/31:00 pm
GEG
- LIH
1 stop9h 16m
Delta
Deal found 6/8![Delta logo]()
$259
This Kiwi.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 7/236:23 am
BOI
- LIH
2 stops10h 43m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$261
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 11/2510:50 am
BOI
- LIH
1 stop8h 25m
Southwest
Deal found 6/8![Southwest logo]()
$270
This Alaska Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 stops10h 00m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$294
This Southwest deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” 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 8/35:00 am
GEG
- LIH
2 stops16h 05m
Southwest
Deal found 6/8![Southwest logo]()
$298
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 June 11, 2026.
Round-trip from | $340 (Delta) |
|---|---|
One-way from | $170 (Delta) |
Popular in | December |
Cheapest in | January |
Average price | $673 |
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 June 11, 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
Sun 11/8
2:35 pm-8:22 pm
1 stop8h 47m
Lihue
Mon 11/16
10:45 pm-12:06 pm
1 stop10h 21m
$340
SpokaneLihue
GEG - LIH
GEGLIH
Spokane
Mon 9/28
9:17 am-7:01 pm
1 stop12h 44m
Lihue
Tue 10/6
9:45 pm-10:38 am
1 stop9h 53m
$340
SpokaneLihue
GEG - LIH
GEGLIH
Spokane
Tue 9/22
7:05 am-5:40 pm
2 stops13h 35m
Lihue
Wed 9/30
9:50 pm-10:30 am
1 stop9h 40m
$378
SpokaneLihue
GEG - LIH
GEGLIH
Spokane
Thu 10/15
9:10 am-7:22 pm
1 stop13h 12m
Lihue
Thu 10/22
9:45 pm-1:02 pm
1 stop12h 17m
$395
SpokaneLihue
GEG - LIH
GEGLIH
Spokane
Wed 9/30
6:20 am-5:40 pm
1 stop14h 20m
Lihue
Wed 10/14
9:45 pm-8:42 am
1 stop7h 57m
$401
SpokaneLihue
GEG - LIH
GEGLIH
Spokane
Mon 8/24
11:59 am-7:23 pm
1 stop10h 24m
Lihue
Wed 8/26
9:35 pm-11:01 am
1 stop10h 26m
$404
SpokaneLihue
GEG - LIH
GEGLIH
Spokane
Mon 8/24
5:12 am-2:30 pm
2 stops12h 18m
Lihue
Wed 8/26
9:35 pm-11:01 am
1 stop10h 26m
$410
BoiseLihue
BOI - LIH
BOILIH
Boise Air Term. Gowen Fld
Sun 9/20
8:25 am-5:40 pm
2 stops13h 15m
Lihue
Sat 9/26
9:50 pm-11:34 am
1 stop9h 44m
$416
BoiseLihue
BOI - LIH
BOILIH
Boise Air Term. Gowen Fld
Tue 8/25
6:00 am-1:58 pm
2 stops11h 58m
Lihue
Wed 8/26
6:00 am-11:00 pm
2 stops13h 00m
$461
SpokaneLihue
GEG - LIH
GEGLIH
Spokane
Tue 9/22
5:12 am-1:58 pm
2 stops11h 46m
Lihue
Wed 9/30
8:12 am-10:25 pm
2 stops11h 13m
$461
Showing 1-10 of 39 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
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, 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 August is currently the most expensive (average of $447). 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 23 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.
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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 June 11, 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 June 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$227 | Average$668 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$239 | Average$498 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$379 | Average$627 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$410 | Average$581 | FlexibilityNo cancel fee | On-time63% |