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).

What are the most popular routes from Washington, D.C. to Kaua'i?

The most popular flight routes from Washington, D.C. to Kaua'i are Washington, D.C. Dulles Intl - Lihue, Baltimore/Washington - Lihue and Washington, D.C. Reagan-National - Lihue.

What are the most popular airlines that fly from Washington, D.C. to Kaua'i?

United Airlines, American Airlines and Alaska Airlines are the most popular airlines when flying from Washington, D.C. to Kaua'i.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. to Kaua'i as you normally would.

Can I find deals for flights from Washington, D.C. to Kaua'i that include hotel bookings?

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

How can I find direct flights from Washington, D.C. to Kaua'i?

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

Can I find deals for business class flights from Washington, D.C. to Kaua'i?

Yes. Cheapflights offers flight deals from Washington, D.C. 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 Washington, D.C. to Kaua'i

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Find flight deals from Washington, D.C. to Kaua'i

Popular in	December
Cheapest in	January
Average price	$665

Highest demand for flights based on searches. 2% potential increase in price ($17 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($33 potential savings vs. average RT price).

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Everything you need to know about your flight from Washington, D.C. to Kaua'i

How far ahead should I book a flight from Washington, D.C. to Kaua'i?

The price you pay for your flight from Washington, D.C. to Kaua'i may vary depending on when you book. For the best chance of a lower fare, look to book 85 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 Washington, D.C. to Kaua'i?

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Kaua'i (average of $608). Flying from Washington, D.C. to Kaua'i in December is currently the most expensive (average of $1,150). 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.

Reviews of airlines servicing Kaua'i

Read reviews from past customers who have flown Alaska Airlines,Delta, andUnited Airlines from Washington, D.C. to Kaua'i. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

7.9

Good

12,976 reviews

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

7.9

Good

12,976 reviews

Alaska Airlines

7.9

Good

12,976 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

Delta

7.8

Good

8,608 reviews

Alaska Airlines

7.9

Good

12,976 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

United Airlines

7.4

Good

10,248 reviews

Alaska Airlines

7.9

Good

12,976 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

American Airlines

7.0

Good

12,098 reviews

Alaska Airlines

7.9

Good

12,976 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

Related info for your journey

What are the most popular routes from Washington, D.C. to Kaua'i?
The most popular flight routes from Washington, D.C. to Kaua'i are Washington, D.C. Dulles Intl - Lihue, Baltimore/Washington - Lihue and Washington, D.C. Reagan-National - Lihue.
Can I find deals for flights from Washington, D.C. to Kaua'i that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Kaua'i flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Kaua'i?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Kaua'i.
Can I find deals for business class flights from Washington, D.C. to Kaua'i?
Yes. Cheapflights offers flight deals from Washington, D.C. 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 Washington, D.C. to Kaua'i?
Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Kaua'i (average of $608). Flying from Washington, D.C. to Kaua'i in December is currently the most expensive (average of $1,150). 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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Alternative routes for Washington, D.C. to Kaua'i

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Top 5 airlines flying from Washington, D.C. to Kaua'i

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$228	Average$509	FlexibilityNo cancel fee	On-timeN/A
Alaska Airlines	Cheapest$270	Average$828	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$494	Average$900	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$583	Average$834	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$607	Average$846	FlexibilityNo cancel fee	On-time63%

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Find cheap flights from Washington, D.C. 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 Washington, D.C. to Kaua'i

Popular in

Cheapest in

Average price

Cheapflights Insights

How far ahead should I book a flight from Washington, D.C. to Kaua'i?

The price you pay for your flight from Washington, D.C. to Kaua'i may vary depending on when you book. For the best chance of a lower fare, look to book 85 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 Washington, D.C. to Kaua'i?

Reviews of airlines servicing Kaua'i

Read reviews from past customers who have flown Alaska Airlines,Delta, andUnited Airlines from Washington, D.C. to Kaua'i. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What are the most popular routes from Washington, D.C. to Kaua'i?

Can I find deals for flights from Washington, D.C. to Kaua'i that include hotel bookings?

How can I find direct flights from Washington, D.C. to Kaua'i?

Can I find deals for business class flights from Washington, D.C. to Kaua'i?

What is the cheapest month to book a flight from Washington, D.C. 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 Washington, D.C. 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 Washington, D.C. to Kaua'i by cabin class

Find flights from Washington, D.C. to Kaua'i, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Washington, D.C. and Kaua'i flights

Browse other Washington, D.C. and Kaua'i flight options. Last updated on September 26, 2026.

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Cheap flights from Washington, D.C. (WAS) to Kaua'i

Find cheap flights from Washington, D.C. 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 Washington, D.C. to Kaua'i

Popular in

Cheapest in

Average price

Cheapflights Insights

How far ahead should I book a flight from Washington, D.C. to Kaua'i?

The price you pay for your flight from Washington, D.C. to Kaua'i may vary depending on when you book. For the best chance of a lower fare, look to book 85 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 Washington, D.C. to Kaua'i?

Reviews of airlines servicing Kaua'i

Read reviews from past customers who have flown Alaska Airlines,Delta, andUnited Airlines from Washington, D.C. to Kaua'i. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What are the most popular routes from Washington, D.C. to Kaua'i?

Can I find deals for flights from Washington, D.C. to Kaua'i that include hotel bookings?

How can I find direct flights from Washington, D.C. to Kaua'i?

Can I find deals for business class flights from Washington, D.C. to Kaua'i?

What is the cheapest month to book a flight from Washington, D.C. 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 Washington, D.C. 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 Washington, D.C. to Kaua'i by cabin class

Find flights from Washington, D.C. to Kaua'i, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Washington, D.C. and Kaua'i flights

Browse other Washington, D.C. and Kaua'i flight options. Last updated on September 26, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Washington, D.C. to Kaua'i flights

Consider these flights traveling from Washington, D.C. to Kaua'i.

Top 5 airlines flying from Washington, D.C. to Kaua'i

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