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Kaua'i

$139+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIH
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap 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 August 14, 2025.

Round-trip from

$297
(Delta)

One-way from

$149
(Delta)

Popular in

June

Cheapest in

January

Average price

$518

Good round-trip deal

$597 or less
From Portland to Kaua'i
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One-way flight from Portland to Kaua'i
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Highest demand for flights based on searches. 13% potential increase in price ($84 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Portland to Kaua'i.
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Find flight deals from Portland to Kaua'i

Cheapest flights from Portland to Kaua'i
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 August 14, 2025.

This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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 12/81:37 pmPDX - LIH
1 stop8h 45mDelta
Mon 12/1510:45 pmLIH - PDX
1 stop9h 39mDelta
Deal found 8/14$297
This Hawaiian Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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.
Tue 12/27:15 amPDX - LIH
Nonstop6h 40mHawaiian Airlines
Tue 12/1612:55 pmLIH - PDX
Nonstop5h 42mHawaiian Airlines
Deal found 8/12$298
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/47:15 amPDX - LIH
2 stops13h 03mDelta
Wed 9/109:40 pmLIH - PDX
1 stop7h 57mDelta
Deal found 8/12$302
This Hawaiian Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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.
Wed 10/2210:40 amPDX - LIH
1 stop9h 51mHawaiian Airlines
Mon 12/1512:55 pmLIH - PDX
Nonstop5h 42mHawaiian Airlines
Deal found 8/13$303
This Delta deal was found by Cheapflights users on 8/11. 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.
Tue 10/281:30 pmPDX - LIH
1 stop8h 35mDelta
Sun 11/910:45 pmLIH - PDX
1 stop7h 53mDelta
Deal found 8/11$307
This Alaska Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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 12/29:50 pmPDX - LIH
1 stop16h 13mAlaska Airlines
Tue 12/1612:55 pmLIH - PDX
Nonstop5h 42mAlaska Airlines
Deal found 8/14$309
This Alaska Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 12/910:50 amPDX - LIH
1 stop27h 13mAlaska Airlines
Tue 12/1612:55 pmLIH - PDX
Nonstop5h 42mAlaska Airlines
Deal found 8/13$311
This Alaska Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 11/288:03 amPDX - LIH
Nonstop6h 17mAlaska Airlines
Wed 12/31:35 pmLIH - PDX
1 stop14h 25mAlaska Airlines
Deal found 8/12$313
This Alaska Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 12/102:45 pmPDX - LIH
1 stop9h 30mAlaska Airlines
Wed 12/171:05 pmLIH - PDX
1 stop8h 14mAlaska Airlines
Deal found 8/12$317
This Alaska Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/1710:40 amPDX - LIH
1 stop10h 20mAlaska Airlines
Sun 9/2111:01 amLIH - PDX
1 stop16h 00mAlaska Airlines
Deal found 8/12$318

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 August 14, 2025.
Use the filters below to find and compare flights from Portland to Kaua'i that are best for you.

Fly from

Portland

Fly to

Kaua'i

Route

Depart

Return

Price

PortlandLihue

PDX - LIH

PDXLIH

Portland

Tue 12/9

1:37 pm-8:22 pm

1 stop8h 45m

Lihue

Tue 12/16

10:45 pm-8:38 am

1 stop7h 53m

$297

PortlandLihue

PDX - LIH

PDXLIH

Portland

Tue 11/4

9:55 am-4:10 pm

1 stop8h 15m

Lihue

Thu 11/13

10:00 am-10:40 pm

1 stop10h 40m

$297

PortlandLihue

PDX - LIH

PDXLIH

Portland

Wed 9/3

1:36 pm-7:03 pm

1 stop8h 27m

Lihue

Thu 9/4

9:40 pm-10:34 am

1 stop9h 54m

$297

PortlandLihue

PDX - LIH

PDXLIH

Portland

Wed 9/3

11:14 am-7:03 pm

1 stop10h 49m

Lihue

Mon 9/8

8:28 pm-9:12 am

1 stop9h 44m

$297

PortlandLihue

PDX - LIH

PDXLIH

Portland

Mon 12/8

1:37 pm-8:22 pm

1 stop8h 45m

Lihue

Wed 12/17

10:45 pm-10:24 am

1 stop9h 39m

$297

PortlandLihue

PDX - LIH

PDXLIH

Portland

Tue 12/9

1:37 pm-8:22 pm

1 stop8h 45m

Lihue

Wed 12/17

10:45 pm-10:24 am

1 stop9h 39m

$297

PortlandLihue

PDX - LIH

PDXLIH

Portland

Tue 10/28

10:23 am-4:53 pm

1 stop9h 30m

Lihue

Tue 11/4

9:30 pm-9:28 am

1 stop9h 58m

$297

PortlandLihue

PDX - LIH

PDXLIH

Portland

Thu 9/11

1:40 pm-6:59 pm

1 stop8h 19m

Lihue

Thu 9/18

9:40 pm-10:27 am

1 stop9h 47m

$297

PortlandLihue

PDX - LIH

PDXLIH

Portland

Tue 12/9

1:37 pm-8:22 pm

1 stop8h 45m

Lihue

Mon 12/15

10:45 pm-10:24 am

1 stop9h 39m

$297

PortlandLihue

PDX - LIH

PDXLIH

Portland

Tue 9/16

1:40 pm-6:59 pm

1 stop8h 19m

$139

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 18 results
1
2

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.
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

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 $440). Flying from Portland to Kaua'i in June is currently the most expensive (average of $689). 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 August 14, 2025.

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.

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 August 14, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Southwest
8.0
Very good
4,244 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Hawaiian Airlines
7.8
Good
2,656 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
United Airlines
7.4
Good
8,916 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

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.

  • What airport do you fly from for flights from Portland to Kaua'i?

    Located just 6.0 mi from the city center, Portland (PDX) is the airport most travelers will use when flying to Kaua'i from Portland.

  • How popular is this Portland to Kaua'i flight route?

    The Portland to Kaua'i flight path was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Portland to Kaua'i one-way?

    The cheapest airlines for a one-way flight from Portland to Kaua'i are Delta ($149), Hawaiian Airlines ($164), and Alaska Airlines ($169).

  • What are the cheapest flights from Portland to Kaua'i?

    Looking at all options, your cheapest flight can be booked for $567. While the most popular route (Portland - Lihue) can be booked for $277 on average our data indicates $1,265 when flying from Portland to Kaua'i.

  • Can I find deals for flights from Portland to Kaua'i that include hotel bookings?

    Yes. In addition to deals on Portland to Kaua'i flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Kaua'i?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Kaua'i.

  • Can I find deals for business class flights from Portland to Kaua'i?

    Yes. Cheapflights offers flight deals from Portland to Kaua'i by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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 $440). Flying from Portland to Kaua'i in June is currently the most expensive (average of $689). 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.

See more FAQs

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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.
Portland to Honolulu flights
Portland to Kahului flights
Portland to Kailua-Kona flights
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Eugene to Honolulu flights
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Portland to Hilo flights
Redmond to Kahului flights
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Portland to Waimea (Big Island) flights
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Yakima to Lihue flights

Top 6 airlines flying from Portland to Kaua'i

Discover the top 6 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$242Average$530FlexibilityNo cancel feeOn-time85%
DeltaCheapest$242Average$372FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$268Average$514FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$286Average$582FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$294Average$432FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$329Average$595FlexibilityNo cancel feeOn-time75%

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