How long is the flight from The Big Island to Kaua'i?

Departing from The Big Island to Kaua'i will take you 4h 30m. The distance from The Big Island to Kaua'i is about 318 mi.

What are the cheapest airlines to fly from The Big Island to Kaua'i one-way?

The cheapest airlines for a one-way flight from The Big Island to Kaua'i are Southwest ($54), Alaska Airlines ($80), and Hawaiian Airlines ($80).

Weekly flight availability from The Big Island to Kaua'i

The most flights from zzFUI to zzFUS are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

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.

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).

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

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

How can I find direct flights from The Big Island to Kaua'i?

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

Can I find deals for business class flights from The Big Island to Kaua'i?

Yes. Cheapflights offers flight deals from The Big Island 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.

Find Cheap Flights from The Big Island to Kaua'i

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Find flight deals from The Big Island to Kaua'i

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$149 (Southwest)
One-way from	$75 (Southwest)
Popular in	June
Cheapest in	March
Average price	$270
Good round-trip deal	$190 or less
Good one-way deal	$120 or less

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From The Big Island to Kaua'i

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One-way flight from The Big Island to Kaua'i

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Highest demand for flights based on searches. 21% potential increase in price ($57 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).

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Average for round-trip flights in July 2026

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Price to beat on a round-trip flight from The Big Island to Kaua'i.

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Price to beat on a one-way flight from The Big Island to Kaua'i.

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Cheapflights Insights

Everything you need to know about your flight from The Big Island to Kaua'i

Prices

Airlines

What is the cheapest month to book a flight from The Big Island to Kaua'i?

Currently, January is the cheapest month in which you can book a flight from The Big Island to Kaua'i (average of $175). Flying from The Big Island to Kaua'i in July is currently the most expensive (average of $268). 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 FUI to FUS?

When flying from The Big Island 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

Peruse reviews from past customers who have flown with Southwest and Alaska Airlines from The Big Island to Kaua'i to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,228 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Southwest

8.0

Very good

4,228 reviews

Southwest

8.0

Very good

4,228 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Alaska Airlines

7.9

Good

12,727 reviews

Southwest

8.0

Very good

4,228 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Related info for your journey

How long is the flight from The Big Island to Kaua'i?
Departing from The Big Island to Kaua'i will take you 4h 30m. The distance from The Big Island to Kaua'i is about 318 mi.
What are the cheapest airlines to fly from The Big Island to Kaua'i one-way?
The cheapest airlines for a one-way flight from The Big Island to Kaua'i are Southwest ($54), Alaska Airlines ($80), and Hawaiian Airlines ($80).
Can I find deals for flights from The Big Island to Kaua'i that include hotel bookings?
Yes. In addition to deals on The Big Island to Kaua'i flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from The Big Island to Kaua'i?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from The Big Island to Kaua'i.
Can I find deals for business class flights from The Big Island to Kaua'i?
Yes. Cheapflights offers flight deals from The Big Island 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 The Big Island to Kaua'i?
Currently, January is the cheapest month in which you can book a flight from The Big Island to Kaua'i (average of $175). Flying from The Big Island to Kaua'i in July is currently the most expensive (average of $268). 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.

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Top 2 airlines flying from The Big Island to Kaua'i

Airline	Cheapest	Average	Flexibility	On-time
Southwest	Cheapest$128	Average$180	FlexibilityNo cancel fee	On-time63%
Alaska Airlines	Cheapest$160	Average$180	FlexibilityNo cancel fee	On-time75%

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Cheap flights from The Big Island to Kaua'i

Find cheap flights from The Big Island 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 The Big Island to Kaua'i

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

Cheapflights Insights

What is the cheapest month to book a flight from The Big Island to Kaua'i?

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

When flying from The Big Island 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 The Big Island to Kaua'i

The most flights from zzFUI to zzFUS are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 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 July 29, 2026.

Peruse reviews from past customers who have flown with Southwest and Alaska Airlines from The Big Island to Kaua'i to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from The Big Island to Kaua'i?

What are the cheapest airlines to fly from The Big Island to Kaua'i one-way?

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

How can I find direct flights from The Big Island to Kaua'i?

Can I find deals for business class flights from The Big Island to Kaua'i?

What is the cheapest month to book a flight from The Big Island to Kaua'i?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for The Big Island 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 The Big Island to Kaua'i by cabin class

Find flights from The Big Island to Kaua'i, based on your preferred cabin class, be it economy, premium economy, business, or first class.

The Big Island and Kaua'i flights

Browse other The Big Island and Kaua'i flight options. Last updated on July 29, 2026.

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Top 2 airlines flying from The Big Island to Kaua'i

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