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Kaua'i

$129+ 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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIH
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
1 adult, Economy
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Cheap 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 December 8, 2025.

This United Airlines deal was found by Cheapflights users on 12/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:00 amPDX - LIH
1 stop9h 13mUnited Airlines
Tue 12/162:30 pmLIH - PDX
1 stop8h 07mUnited Airlines
Deal found 12/7$397
This American Airlines deal was found by Cheapflights users on 12/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/65:41 amPDX - LIH
1 stop9h 43mAmerican Airlines
Wed 12/1010:44 pmLIH - PDX
1 stop10h 13mAmerican Airlines
Deal found 12/6$427
This Southwest deal was found by Cheapflights users on 12/5. 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 12/105:00 amPDX - LIH
2 stops13h 10mSouthwest
Mon 12/159:10 pmLIH - PDX
1 stop12h 15mSouthwest
Deal found 12/5$432
This American Airlines deal was found by Cheapflights users on 12/5. 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.
Mon 12/85:41 amPDX - LIH
1 stop9h 43mAmerican Airlines
Mon 12/1510:44 pmLIH - PDX
1 stop20h 06mAmerican Airlines
Deal found 12/5$453
This American Airlines deal was found by Cheapflights users on 12/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/105:59 pmPDX - LIH
1 stop21h 25mAmerican Airlines
Mon 12/1510:44 pmLIH - PDX
1 stop12h 50mAmerican Airlines
Deal found 12/8$457
This Southwest deal was found by Cheapflights users on 12/6. 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 12/109:55 amPDX - LIH
1 stop8h 15mSouthwest
Wed 12/178:10 amLIH - PDX
2 stops9h 45mSouthwest
Deal found 12/6$462
This Southwest deal was found by Cheapflights users on 12/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/105:00 amPDX - LIH
2 stops13h 10mSouthwest
Tue 12/169:10 pmLIH - PDX
1 stop12h 15mSouthwest
Deal found 12/7$482
This Alaska Airlines deal was found by Cheapflights users on 12/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:03 amPDX - LIH
Nonstop6h 16mAlaska Airlines
Thu 1/812:29 pmLIH - PDX
Nonstop5h 35mAlaska Airlines
Deal found 12/7$493
This United Airlines deal was found by Cheapflights users on 12/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:00 amPDX - LIH
1 stop9h 13mUnited Airlines
Mon 12/152:30 pmLIH - PDX
1 stop8h 07mUnited Airlines
Deal found 12/6$497
This Delta deal was found by Cheapflights users on 12/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:00 amPDX - LIH
1 stop15h 54mDelta
Thu 1/810:45 pmLIH - PDX
1 stop9h 22mDelta
Deal found 12/7$503

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 December 8, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$302
(American Airlines)

One-way from

$129
(United Airlines)

Popular in

June

Cheapest in

September

Average price

$596

Good round-trip deal

$452 or less

Good one-way deal

$314 or less
Provider with most accurate pricing for Portland-Lihue flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Lihue flights.
Search Deals
From Portland to Kaua'i
Search Deals
One-way flight from Portland to Kaua'i
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($73 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Portland to Kaua'i.
Search Deals
Price to beat on a one-way flight from Portland to Kaua'i.
Search Deals

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 December 8, 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

Wed 3/4

7:35 pm-7:55 pm

1 stop26h 20m

Lihue

Wed 3/11

9:40 pm-6:58 pm

2 stops18h 18m

$345

PortlandLihue

PDX - LIH

PDXLIH

Portland

Tue 3/3

6:00 am-10:18 pm

1 stop18h 18m

Lihue

Wed 3/11

11:27 am-8:03 pm

Nonstop5h 36m

$349

PortlandLihue

PDX - LIH

PDXLIH

Portland

Thu 1/22

5:05 am-1:15 pm

1 stop10h 10m

Lihue

Mon 1/26

9:15 pm-11:45 am

1 stop12h 30m

$357

PortlandLihue

PDX - LIH

PDXLIH

Portland

Tue 4/14

7:00 am-4:10 pm

1 stop12h 10m

Lihue

Tue 4/21

9:10 pm-9:05 am

1 stop8h 55m

$361

PortlandLihue

PDX - LIH

PDXLIH

Portland

Mon 3/2

1:40 pm-10:44 pm

1 stop11h 04m

Lihue

Sun 3/8

11:13 pm-12:33 pm

1 stop10h 20m

$387

PortlandLihue

PDX - LIH

PDXLIH

Portland

Sat 1/31

5:51 pm-11:10 am

1 stop19h 19m

Lihue

Mon 2/9

2:50 pm-11:32 pm

1 stop30h 42m

$400

PortlandLihue

PDX - LIH

PDXLIH

Portland

Tue 2/17

1:36 pm-1:39 pm

2 stops26h 03m

Lihue

Tue 2/24

4:50 pm-1:46 pm

1 stop18h 56m

$404

PortlandLihue

PDX - LIH

PDXLIH

Portland

Tue 3/3

5:45 am-1:10 pm

1 stop9h 25m

Lihue

Tue 3/10

11:13 pm-12:33 pm

1 stop10h 20m

$407

PortlandLihue

PDX - LIH

PDXLIH

Portland

Mon 2/23

6:35 am-4:25 pm

2 stops11h 50m

Lihue

Thu 2/26

8:10 am-10:30 pm

2 stops12h 20m

$407

PortlandLihue

PDX - LIH

PDXLIH

Portland

Wed 3/4

5:35 pm-10:46 am

1 stop19h 11m

Lihue

Tue 3/10

7:45 pm-9:42 am

2 stops10h 57m

$416

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

Showing 1-10 of 22 results
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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 $215). Flying from Portland to Kaua'i in July is currently the most expensive (average of $350). 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 December 8, 2025.

A simple way to save on the total cost of your ticket is to fly from Portland to Kaua'i in the evening. If you’re flexible enough to do this you can expect to save up to 62% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from Portland to Kaua'i?

Use this chart to determine the cheapest time to fly round-trip from Portland to Kaua'i. Price data was last updated on December 6, 2025.

Travelers seeking maximum savings on their Portland to Kaua'i flight should consider departing on Tuesday evenings when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 8, 2025.

The most flights from PDX to zzFUS are scheduled on a Friday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

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 December 8, 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
11,414 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,414 reviews
Alaska Airlines
8.0
Very good
11,414 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Southwest
8.0
Very good
4,252 reviews
Alaska Airlines
8.0
Very good
11,414 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Delta
7.9
Good
8,010 reviews
Alaska Airlines
8.0
Very good
11,414 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Hawaiian Airlines
7.8
Good
2,818 reviews
Alaska Airlines
8.0
Very good
11,414 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
United Airlines
7.4
Good
9,078 reviews
Alaska Airlines
8.0
Very good
11,414 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

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.

  • How long is the flight from Portland to Kaua'i?

    A quick flight from Portland to Kaua'i can take about 10h 10m. Southwest provides one of the quickest options available for as low as $357. The distance between Portland and Kaua'i is about 2628 mi. This flight may include one or multiple stops.

  • 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 United Airlines ($115), Southwest ($128), and Delta ($148).

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

    Looking at all options, your cheapest flight can be booked for $304. While the most popular route (Portland - Lihue) can be booked for $287 on average, our data indicates $552 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 $215). Flying from Portland to Kaua'i in July is currently the most expensive (average of $350). 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.
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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 December 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$237Average$399FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$257Average$561FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$295Average$518FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$297Average$580FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$310Average$463FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$322Average$583FlexibilityNo cancel feeOn-time75%

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