$166+ Cheap flights from Portland (PDX) 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIH
Aug 25 — Sep 11
Round-trip
1 adult, Economy
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Find cheap flights from Portland 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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Kaua'i
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Cheapest flights from Portland to Kaua'iExplore the most affordable flight options available from Portland to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 26, 2026.
Explore the most affordable flight options available from Portland to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 26, 2026.
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2510:55 am
PDX
- LIH
1 stop8h 15m
Southwest
Tue 9/299:25 pm
LIH
- PDX
1 stop11h 25m
Southwest
Deal found 7/24![Southwest logo]()
$426
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:50 am
PDX
- LIH
Nonstop6h 19m
Alaska Airlines
Tue 11/1012:18 pm
LIH
- PDX
Nonstop5h 31m
Alaska Airlines
Deal found 7/24![Alaska Airlines logo]()
$427
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.
Tue 8/258:20 am
PDX
- LIH
Nonstop6h 00m
Multiple Airlines
Fri 8/283:42 pm
LIH
- PDX
1 stop14h 25m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$428
This Alaska Airlines deal was found by Cheapflights users on 7/21. 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 11/65:50 pm
PDX
- LIH
1 stop18h 06m
Multiple Airlines
Fri 11/131:24 pm
LIH
- PDX
1 stop18h 26m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$431
This CheapOair deal was found by Cheapflights users on 7/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:33 pm
PDX
- LIH
1 stop17h 56m
Alaska Airlines
Thu 11/512:18 pm
LIH
- PDX
Nonstop5h 31m
Alaska Airlines
Deal found 7/21![Alaska Airlines logo]()
$432
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/125:53 pm
PDX
- LIH
1 stop18h 49m
Multiple Airlines
Mon 9/149:26 am
LIH
- PDX
1 stop17h 48m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$433
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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.
Wed 10/218:12 am
PDX
- LIH
Nonstop5h 56m
Multiple Airlines
Sun 10/2512:42 pm
LIH
- PDX
1 stop22h 08m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$435
This Alaska Airlines deal was found by Cheapflights users on 7/21. 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.
Thu 10/13:00 pm
PDX
- LIH
1 stop8h 14m
Multiple Airlines
Thu 10/2912:23 pm
LIH
- PDX
Nonstop5h 24m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$436
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.
Tue 9/222:45 pm
PDX
- LIH
1 stop25h 26m
Multiple Airlines
Sun 9/279:26 am
LIH
- PDX
1 stop17h 48m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$438
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/258:12 am
PDX
- LIH
1 stop27h 42m
Multiple Airlines
Wed 9/309:26 am
LIH
- PDX
1 stop17h 48m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$439
This Alaska Airlines deal was found by Cheapflights users on 7/23. 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.
Mon 11/27:50 am
PDX
- LIH
Nonstop6h 19m
Multiple Airlines
Wed 11/118:45 pm
LIH
- PDX
2 stops10h 50m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$440
Best flights from Portland to Kaua'iDiscover carefully curated flight deals from Portland to Kaua'i that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 26, 2026.
Discover carefully curated flight deals from Portland to Kaua'i that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 26, 2026.
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.
Thu 9/38:20 am
PDX
- LIH
Nonstop6h 00m
Multiple Airlines
Tue 9/89:26 am
LIH
- PDX
1 stop17h 48m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$462
This Hawaiian 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/125:35 pm
PDX
- LIH
1 stop7h 22m
Alaska Airlines
Thu 9/1711:25 am
LIH
- PDX
Nonstop5h 25m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$462
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:05 am
PDX
- LIH
1 stop9h 30m
Southwest
Fri 8/219:25 pm
LIH
- PDX
1 stop8h 40m
Southwest
Deal found 7/25![Southwest logo]()
$468
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.
Fri 9/412:25 pm
PDX
- LIH
1 stop9h 51m
Delta
Fri 9/119:54 pm
LIH
- PDX
2 stops15h 43m
Delta
Deal found 7/25![Delta logo]()
$504
This United Airlines deal was found by Cheapflights users on 7/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:15 am
PDX
- LIH
2 stops11h 59m
United Airlines
Sat 9/510:00 pm
LIH
- PDX
2 stops11h 00m
United Airlines
Deal found 7/21![United Airlines logo]()
$517
This Alaska Airlines deal was found by Cheapflights users on 7/21. 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.
Sat 8/295:53 pm
PDX
- LIH
1 stop18h 49m
Multiple Airlines
Sat 9/59:26 am
LIH
- PDX
1 stop17h 48m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$463
This Southwest deal was found by Cheapflights users on 7/23. 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.
Sun 10/116:00 am
PDX
- LIH
1 stop8h 00m
Southwest
Fri 10/168:20 am
LIH
- PDX
2 stops12h 05m
Southwest
Deal found 7/23![Southwest logo]()
$473
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.
Fri 9/42:45 pm
PDX
- LIH
1 stop27h 28m
Multiple Airlines
Fri 9/1111:25 am
LIH
- PDX
Nonstop5h 25m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$473
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/75:15 am
PDX
- LIH
2 stops12h 00m
Southwest
Mon 9/148:25 pm
LIH
- PDX
2 stops16h 00m
Southwest
Deal found 7/26![Southwest logo]()
$489
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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 9/77:12 am
PDX
- LIH
1 stop11h 01m
Multiple Airlines
Sun 9/138:45 pm
LIH
- PDX
2 stops10h 24m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$497
This Alaska Airlines deal was found by Cheapflights users on 7/21. 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.
Thu 10/88:12 am
PDX
- LIH
Nonstop5h 56m
Multiple Airlines
Tue 10/1312:42 pm
LIH
- PDX
1 stop22h 08m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$523
Last-minute flights from Portland to Kaua'iDiscover last-minute flight deals from Portland to Kaua'i. Data last updated July 26, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Kaua'i. Data last updated July 26, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 7/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/119:45 pm
PDX
- LIH
1 stop14h 58m
Multiple Airlines
Tue 8/181:06 pm
LIH
- PDX
1 stop17h 38m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$450
This Alaska Airlines deal was found by Cheapflights users on 7/21. 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.
Sat 8/155:33 pm
PDX
- LIH
1 stop19h 43m
Multiple Airlines
Fri 8/2111:25 am
LIH
- PDX
Nonstop5h 25m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$447
This American Airlines deal was found by Cheapflights users on 7/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:35 am
PDX
- LIH
1 stop16h 34m
American Airlines
Fri 8/219:00 pm
LIH
- PDX
1 stop16h 51m
American Airlines
Deal found 7/21![American Airlines logo]()
$444
This Southwest deal was found by Cheapflights users on 7/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/167:20 am
PDX
- LIH
1 stop11h 55m
Southwest
Fri 8/218:20 am
LIH
- PDX
2 stops10h 50m
Southwest
Deal found 7/21![Southwest logo]()
$452
This Southwest deal was found by Cheapflights users on 7/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:50 am
PDX
- LIH
2 stops13h 20m
Southwest
Tue 8/258:25 pm
LIH
- PDX
2 stops16h 00m
Southwest
Deal found 7/21![Southwest logo]()
$442
This CheapOair deal was found by Cheapflights users on 7/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:20 am
PDX
- LIH
Nonstop6h 00m
Multiple Airlines
Sun 8/309:26 am
LIH
- PDX
1 stop17h 54m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$432
This Delta deal was found by Cheapflights users on 7/20. 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.
Thu 8/2012:25 pm
PDX
- LIH
1 stop9h 51m
Delta
Sun 8/309:55 pm
LIH
- PDX
1 stop7h 41m
Delta
Deal found 7/20![Delta logo]()
$446
This Southwest deal was found by Cheapflights users on 7/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:05 am
PDX
- LIH
2 stops13h 10m
Southwest
Wed 8/266:15 am
LIH
- PDX
2 stops12h 05m
Southwest
Deal found 7/21![Southwest logo]()
$441
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.
Tue 8/258:20 am
PDX
- LIH
Nonstop6h 00m
Multiple Airlines
Fri 8/283:42 pm
LIH
- PDX
1 stop14h 25m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$428
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:20 am
PDX
- LIH
Nonstop6h 00m
Alaska Airlines
Mon 8/3111:25 am
LIH
- PDX
Nonstop5h 25m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$427
This Expedia deal was found by Cheapflights users on 7/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:12 am
PDX
- LIH
1 stop11h 01m
Multiple Airlines
Sun 8/3010:31 am
LIH
- PDX
1 stop16h 49m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$437
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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.
Sat 8/295:53 pm
PDX
- LIH
1 stop18h 49m
Multiple Airlines
Sat 9/59:26 am
LIH
- PDX
1 stop17h 48m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$449
One-way flights from Portland to Kaua'iSearch for one-way flight options from Portland to Kaua'i. Find affordable one-way fares based on user searches. Data last updated July 26, 2026.
Search for one-way flight options from Portland to Kaua'i. Find affordable one-way fares based on user searches. Data last updated July 26, 2026.
This United Airlines deal was found by Cheapflights users on 7/22. 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 8/185:30 am
PDX
- LIH
1 stop9h 29m
United Airlines
Deal found 7/22![United Airlines logo]()
$166
This United Airlines deal was found by Cheapflights users on 7/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/201:03 pm
PDX
- LIH
1 stop9h 41m
United Airlines
Deal found 7/20![United Airlines logo]()
$168
This Southwest deal was found by Cheapflights users on 7/23. 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.
Tue 11/107:20 am
PDX
- LIH
2 stops16h 10m
Southwest
Deal found 7/23![Southwest logo]()
$172
This Southwest deal was found by Cheapflights users on 7/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/167:20 am
PDX
- LIH
1 stop11h 55m
Southwest
Deal found 7/22![Southwest logo]()
$176
This United Airlines deal was found by Cheapflights users on 7/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:30 am
PDX
- LIH
1 stop9h 29m
United Airlines
Deal found 7/20![United Airlines logo]()
$187
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:20 am
PDX
- LIH
1 stop11h 55m
Southwest
Deal found 7/24![Southwest logo]()
$198
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:50 am
PDX
- LIH
1 stop11h 20m
Southwest
Deal found 7/24![Southwest logo]()
$202
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:12 am
PDX
- LIH
1 stop12h 18m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$204
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2910:47 am
PDX
- LIH
1 stop9h 52m
Delta
Deal found 7/24![Delta logo]()
$208
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:30 pm
PDX
- LIH
1 stop17h 00m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$209
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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 9/222:45 pm
PDX
- LIH
1 stop25h 26m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$210
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:20 am
PDX
- LIH
2 stops16h 10m
Southwest
Deal found 7/24![Southwest logo]()
$214
Find flight deals from Portland to Kaua'i
Keep the following information in mind while searching for Portland to Kaua'i flight deals. Data was last updated July 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $426 (Southwest) |
One-way from | $166 (United Airlines) |
Popular in | June |
Cheapest in | January |
Average price | $658 |
Good round-trip deal | $658 or less |
Good one-way deal | $364 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland 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 26, 2026.
Use the filters below to find and compare flights from Portland to Kaua'i that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandLihue
PDX - LIH
PDXLIH
Portland
Thu 9/3
8:20 am-11:20 am
Nonstop6h 00m
Lihue
Tue 9/8
9:26 am-6:14 am
1 stop17h 48m
$462
Quickest round-trip
PortlandLihue
PDX - LIH
PDXLIH
Portland
Sat 9/12
5:35 pm-9:57 pm
1 stop7h 22m
Lihue
Thu 9/17
11:25 am-7:50 pm
Nonstop5h 25m
$462
PortlandLihue
PDX - LIH
PDXLIH
Portland
Sat 8/29
5:53 pm-9:42 am
1 stop18h 49m
Lihue
Sat 9/5
9:26 am-6:14 am
1 stop17h 48m
$463
PortlandLihue
PDX - LIH
PDXLIH
Portland
Sun 8/16
6:05 am-12:35 pm
1 stop9h 30m
Lihue
Fri 8/21
9:25 pm-9:05 am
1 stop8h 40m
$468
PortlandLihue
PDX - LIH
PDXLIH
Portland
Sun 10/11
6:00 am-11:00 am
1 stop8h 00m
Lihue
Fri 10/16
8:20 am-11:25 pm
2 stops12h 05m
$473
PortlandLihue
PDX - LIH
PDXLIH
Portland
Fri 9/4
2:45 pm-3:13 pm
1 stop27h 28m
Lihue
Fri 9/11
11:25 am-7:50 pm
Nonstop5h 25m
$473
PortlandLihue
PDX - LIH
PDXLIH
Portland
Mon 9/7
5:15 am-2:15 pm
2 stops12h 00m
Lihue
Mon 9/14
8:25 pm-3:25 pm
2 stops16h 00m
$489
PortlandLihue
PDX - LIH
PDXLIH
Portland
Mon 9/7
7:12 am-3:13 pm
1 stop11h 01m
Lihue
Sun 9/13
8:45 pm-10:09 am
2 stops10h 24m
$497
PortlandLihue
PDX - LIH
PDXLIH
Portland
Fri 9/4
12:25 pm-7:16 pm
1 stop9h 51m
Lihue
Fri 9/11
9:54 pm-4:37 pm
2 stops15h 43m
$504
PortlandLihue
PDX - LIH
PDXLIH
Portland
Sat 8/29
11:15 am-8:14 pm
2 stops11h 59m
Lihue
Sat 9/5
10:00 pm-12:00 pm
2 stops11h 00m
$517
Showing 1-10 of 23 resultsSorted by cheapest first
Best time to book a flight from Portland to Kaua'i
Have a flexible travel schedule? Discover the best time to fly to Kaua'i from Portland with our price prediction graph.
PDX-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 Portland to Kaua'i
PDX-zzFUS
PDX-LIH
What is the cheapest month to book a flight from Portland to Kaua'i?
Currently, January is the cheapest month in which you can book a flight from Portland to Kaua'i (average of $417). Flying from Portland to Kaua'i in June is currently the most expensive (average of $713). 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.
What is the cheapest time of day to fly from PDX to FUS?
Find hourly flight availability from Portland to Kaua'i. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 26, 2026.
When flying from Portland to Kaua'i, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Portland to Kaua'i
Explore weekly flight availability from Portland to Kaua'i. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 26, 2026.
The most flights from PDX to zzFUS are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).
How far ahead should I book a flight from Portland to Kaua'i?
The price you pay for your flight from Portland to Kaua'i may vary depending on when you book. For the best chance of a lower fare, look to book 21 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Reviews of airlines servicing Kaua'i
Get insights into the airlines that provide service to Kaua'i. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kaua'i. Reviews last updated July 26, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta from Portland to Kaua'i by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Portland to Kaua'i. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Portland 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 Portland to Kaua'i by cabin class
Find flights from Portland to Kaua'i, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and Kaua'i flights
Browse other Portland and Kaua'i flight options. Last updated on July 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 7 airlines flying from Portland to Kaua'i
Discover the top 7 airlines that operate flights from Portland 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 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$200 | Average$403 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$216 | Average$442 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$217 | Average$433 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$252 | Average$418 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$282 | Average$478 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$357 | Average$585 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$569 | Average$569 | FlexibilityNo cancel fee | On-time62% |