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 ($139), Alaska Airlines ($164), and United Airlines ($243).

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

Looking at all options, your cheapest flight can be booked for $159. While the most popular route (Portland - Lihue) can be booked for $327 on average our data indicates $503 when flying from Portland to Kaua'i.

What are the most popular airlines that fly from Portland to Kaua'i?

Before booking your flight from Portland to Kaua'i check out the most popular airlines for this route: American Airlines, Alaska Airlines or Delta.

How far in advance should I book a flight from Portland to Kaua'i?

To save up to 74% on this flight, we recommend booking at least 41 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Portland to Kaua'i from $472 1-2 weeks out and tickets from $494 for flights departing within the next 72 hours.

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

Our data shows that January tends to be the cheapest month to fly to Kaua'i from Portland. Users have commonly found prices around $534 for the month, but tickets can be as low as $208. Due to multiple factors, prepare for potentially higher prices in June.

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.

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.

$139+ Flights from Portland to Kaua'i

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Cheap flight deals from Portland to Kaua'i

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$321 (United Airlines)
One-way from	$139 (Delta)
Popular in	June
Cheapest in	January
Average price	$536
Good round-trip deal	$389 or less
Good one-way deal	$159 or less

Provider with most accurate pricing for Portland-Lihue flight deals.

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Provider most trusted by Cheapflights users for Portland-Lihue flights.

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From Portland to Kaua'i

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One-way flight from Portland to Kaua'i

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($74 potential increase over avg. RT price).

Search Deals

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 May 2025

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Price to beat on a round-trip flight from Portland to Kaua'i.

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Price to beat on a one-way 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 May 1, 2025.

Mon 6/21:25 pmPDX - LIH

1 stop9h 30mUnited Airlines

Mon 6/910:58 pmLIH - PDX

1 stop10h 24mUnited Airlines

Deal found 5/1

$321

Wed 5/1411:25 amPDX - LIH

1 stop10h 35mDelta

Wed 5/219:45 pmLIH - PDX

1 stop10h 00mDelta

Deal found 4/30

$327

Tue 5/275:33 pmPDX - LIH

1 stop15h 42mAlaska Airlines

Wed 6/41:00 pmLIH - PDX

1 stop17h 40mAlaska Airlines

Deal found 4/30

$343

Wed 5/147:24 amPDX - LIH

Nonstop6h 15mHawaiian Airlines

Wed 5/2110:50 amLIH - PDX

1 stop10h 09mHawaiian Airlines

Deal found 4/30

$458

Wed 4/305:45 amPDX - LIH

1 stop13h 15mSouthwest

Mon 9/1510:00 amLIH - PDX

1 stop9h 10mSouthwest

Deal found 4/29

$476

Best flights from Portland to Kaua'i
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 May 1, 2025.

Mon 6/21:25 pmPDX - LIH

1 stop9h 30mUnited Airlines

Mon 6/910:58 pmLIH - PDX

1 stop10h 24mUnited Airlines

Deal found 5/1

$321

Wed 5/1411:25 amPDX - LIH

1 stop10h 35mDelta

Wed 5/219:45 pmLIH - PDX

1 stop10h 00mDelta

Deal found 4/30

$327

Tue 5/275:33 pmPDX - LIH

1 stop15h 42mAlaska Airlines

Wed 6/41:00 pmLIH - PDX

1 stop17h 40mAlaska Airlines

Deal found 4/30

$343

Wed 5/287:13 amPDX - LIH

Nonstop6h 08mHawaiian Airlines

Mon 6/211:21 amLIH - PDX

Nonstop5h 41mHawaiian Airlines

Deal found 5/1

$448

Mon 9/152:00 pmPDX - LIH

1 stop25h 11mAmerican Airlines

Sat 9/2011:03 pmLIH - PDX

1 stop21h 02mAmerican Airlines

Deal found 4/30

$465

Mon 9/155:00 amPDX - LIH

2 stops12h 45mSouthwest

Sat 9/206:15 amLIH - PDX

2 stops12h 55mSouthwest

Deal found 4/30

$593

Last-minute flights from Portland to Kaua'i
Discover last-minute flight deals from Portland to Kaua'i. Data last updated May 1, 2025 and is based on user searches.

Wed 4/305:45 amPDX - LIH

1 stop13h 15mSouthwest

Mon 9/1510:00 amLIH - PDX

1 stop9h 10mSouthwest

Deal found 4/29

$476

Wed 4/305:53 pmPDX - LIH

2 stops29h 29mAmerican Airlines

Wed 5/146:39 pmLIH - PDX

2 stops13h 46mAmerican Airlines

Deal found 4/30

$1,043

Wed 5/77:24 amPDX - LIH

Nonstop6h 15mHawaiian Airlines

Mon 5/121:55 pmLIH - PDX

Nonstop5h 28mHawaiian Airlines

Deal found 4/30

$768

Thu 5/85:20 amPDX - LIH

2 stops12h 05mSouthwest

Thu 5/158:15 amLIH - PDX

2 stops11h 00mSouthwest

Deal found 4/30

$567

Fri 5/96:00 amPDX - LIH

1 stop8h 47mUnited Airlines

Mon 5/121:20 pmLIH - PDX

1 stop8h 11mUnited Airlines

Deal found 4/30

$407

Sat 5/101:21 pmPDX - LIH

1 stop8h 39mDelta

Wed 5/219:45 pmLIH - PDX

1 stop10h 00mDelta

Deal found 4/30

$357

Sat 5/105:30 pmPDX - LIH

1 stop19h 00mAlaska Airlines

Wed 5/2111:21 amLIH - PDX

Nonstop5h 41mAlaska Airlines

Deal found 4/30

$564

Wed 5/1411:25 amPDX - LIH

1 stop10h 35mDelta

Wed 5/219:45 pmLIH - PDX

1 stop10h 00mDelta

Deal found 4/30

$327

Wed 5/147:24 amPDX - LIH

Nonstop6h 15mHawaiian Airlines

Wed 5/2110:50 amLIH - PDX

1 stop10h 09mHawaiian Airlines

Deal found 4/30

$458

Tue 5/275:33 pmPDX - LIH

1 stop15h 42mAlaska Airlines

Wed 6/41:00 pmLIH - PDX

1 stop17h 40mAlaska Airlines

Deal found 4/30

$343

One-way flights from Portland to Kaua'i
Search for one-way flight options from Portland to Kaua'i. Find affordable one-way fares based on user searches. Data last updated May 1, 2025.

Wed 5/2811:25 amPDX - LIH

1 stop10h 35mDelta

Deal found 4/30

$139

Wed 5/287:13 amPDX - LIH

Nonstop6h 08mAlaska Airlines

Deal found 4/30

$164

Sat 8/169:59 amPDX - LIH

2 stops13h 26mUnited Airlines

Deal found 5/1

$243

Fri 5/1610:45 amPDX - LIH

2 stops13h 35mSouthwest

Deal found 4/30

$286

Cheapflights Fare Finder

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

Price

PortlandLihue

PDX - LIH

PDXLIH

Portland

Mon 6/2

1:25 pm-7:55 pm

1 stop9h 30m

Lihue

Mon 6/9

10:58 pm-12:22 pm

1 stop10h 24m

$321

PortlandLihue

PDX - LIH

PDXLIH

Portland

Wed 5/14

11:25 am-7:00 pm

1 stop10h 35m

Lihue

Wed 5/21

9:45 pm-10:45 am

1 stop10h 00m

$327

PortlandLihue

PDX - LIH

PDXLIH

Portland

Tue 5/27

5:33 pm-6:15 am

1 stop15h 42m

Lihue

Wed 6/4

1:00 pm-9:40 am

1 stop17h 40m

$343

PortlandLihue

PDX - LIH

PDXLIH

Portland

Wed 5/14

7:24 am-10:39 am

Nonstop6h 15m

Lihue

Wed 5/21

10:50 am-11:59 pm

1 stop10h 09m

$458

PortlandLihue

PDX - LIH

PDXLIH

Portland

Thu 5/8

5:20 am-2:25 pm

2 stops12h 05m

Lihue

Thu 5/15

8:15 am-10:15 pm

2 stops11h 00m

$567

PortlandLihue

PDX - LIH

PDXLIH

Portland

Thu 6/19

3:00 pm-12:04 pm

1 stop24h 04m

Lihue

Tue 6/24

1:34 pm-2:25 pm

1 stop21h 51m

$687

PortlandLihue

PDX - LIH

PDXLIH

Portland

Wed 5/28

11:25 am-7:00 pm

1 stop10h 35m

$139

PortlandLihue

PDX - LIH

PDXLIH

Portland

Wed 5/28

7:13 am-10:21 am

Nonstop6h 08m

$164

PortlandLihue

PDX - LIH

PDXLIH

Portland

Fri 5/9

6:00 am-11:47 am

1 stop8h 47m

$269

PortlandLihue

PDX - LIH

PDXLIH

Portland

Fri 5/16

10:45 am-9:20 pm

2 stops13h 35m

$286

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 11 results

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 $678). 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?

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.

Rainfall in Kaua'i by month

In terms of precipitation, rainfall in Kaua'i ranges from 2.2 - 6.7 inches per month. January is typically the wettest month, when rainfall can reach 6.7 in. June is typically the driest time to visit Kaua'i when rainfall is around 2.2 in.

Temperature in Kaua'i by month

If weather is an important factor for your trip to Kaua'i, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

Reviews of airlines servicing Kaua'i

Read through reviews of airlines operating flights from Portland to Kaua'i, such as Alaska Airlines, Southwest and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,972 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

9,972 reviews

Alaska Airlines

8.0

Very good

9,972 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Southwest

8.0

Very good

4,293 reviews

Alaska Airlines

8.0

Very good

9,972 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,934 reviews

Alaska Airlines

8.0

Very good

9,972 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Hawaiian Airlines

7.9

Good

2,409 reviews

Alaska Airlines

8.0

Very good

9,972 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,696 reviews

Alaska Airlines

8.0

Very good

9,972 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

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.
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 ($139), Alaska Airlines ($164), and United Airlines ($243).
What are the cheapest flights from Portland to Kaua'i?
Looking at all options, your cheapest flight can be booked for $159. While the most popular route (Portland - Lihue) can be booked for $327 on average our data indicates $503 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 $678). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Portland to Kaua'i

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Yakima to Lihue flights

Top 6 airlines flying from Portland to Kaua'i

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$243	Average$391	FlexibilityNo cancel fee	On-timeN/A
Hawaiian Airlines	Cheapest$251	Average$551	FlexibilityNo cancel fee	On-time85%
Southwest	Cheapest$285	Average$563	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$289	Average$497	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$294	Average$432	FlexibilityNo cancel fee	On-time71%
Alaska Airlines	Cheapest$329	Average$591	FlexibilityNo cancel fee	On-time75%

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$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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.

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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 May 1, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Portland to Kaua'i

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 May 1, 2025.

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 May 1, 2025.

Cheapflights Fare Finder

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

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.

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?

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 May 1, 2025.

Rainfall in Kaua'i by month

Plan your trip to Kaua'i by taking into account the average rainfall totals by month.

Temperature in Kaua'i by month

Plan your trip to Kaua'i by taking into account the average temperature totals by month.

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 May 1, 2025.

Read through reviews of airlines operating flights from Portland to Kaua'i, such as Alaska Airlines, Southwest and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

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

What is the cheapest month to book a flight from Portland to Kaua'i?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Kaua'i

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Portland to Kaua'i

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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 May 1, 2025.