Question 1

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

Accepted Answer

The Portland to Kaua'i flight path was viewed by 2 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

Question 2

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

Accepted Answer

The cheapest airlines for a one-way flight from Portland to Kaua'i are United Airlines ($129), Southwest ($183), and Alaska Airlines ($224).

Question 3

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

Accepted Answer

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 17 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Question 4

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

Accepted Answer

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 $717). 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.

Question 5

E

Accepted Answer

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.

Question 6

E

Accepted Answer

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).

Question 7

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

Accepted Answer

Looking at all options, your cheapest flight can be booked for $681. While the most popular route (Portland - Lihue) can be booked for $416 on average, our data indicates $710 when flying from Portland to Kaua'i.

Question 8

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

Accepted Answer

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

Question 9

What is the cheapest time of day to fly from PDX to FUS?

Accepted Answer

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.

Question 10

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

Accepted Answer

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.

Question 11

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

Accepted Answer

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

Question 12

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

Accepted Answer

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.

Question 13

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

Accepted Answer

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.

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Popular in	December
Cheapest in	January
Average price	$625
Good round-trip deal	$681 or less

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$216	Average$446	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$255	Average$486	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$277	Average$560	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$306	Average$506	FlexibilityNo cancel fee	On-time63%
Alaska Airlines	Cheapest$395	Average$616	FlexibilityNo cancel fee	On-time75%
JetBlue	Cheapest$569	Average$574	FlexibilityNo cancel fee	On-time62%

Cheap flights from Portland (PDX) to Kaua'i

Find cheap flights from Portland to Kaua'i with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Portland to Kaua'i

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Good round-trip deal

Cheapflights Insights

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 17 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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?

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 a feel of what it's like to fly with Alaska Airlines,Southwest, 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.

Related info for your journey

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

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

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.

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 October 31, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Top 6 airlines flying from Portland to Kaua'i

100% Free

Book with Flexibility

Travel Smart