How long is the flight from Washington, D.C. to Kaua'i?

On average, it takes 17h 57m to fly from Washington, D.C. to Kaua'i if you fly out of Washington, D.C. (the most popular airport in Washington, D.C.) and into Incheon Intl Airport (the most popular airport in Kaua'i). If you’re flying out of Baltimore and into Incheon Intl Airport, then the flight time is around 19h 25m.

What is the cheapest airline that flies from Washington, D.C. to Kaua'i?

Delta, Alaska Airlines, and United Airlines are the most popular carriers operating from Washington, D.C. to Kaua'i

What airlines fly to Kaua'i?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Kaua'i from Washington, D.C. according to our data. United Airlines is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Kaua'i. Keep in mind that there are 5 different airlines that fly to Kaua'i on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Washington, D.C. to Kaua'i?

Prices for flights from Washington, D.C. to Kaua'i refresh daily.

How many operators does momondo search for flights from Washington, D.C. to Kaua'i?

The number of operators available for flights from Washington, D.C. to Kaua'i is 5 as of May 2025.

How old do you have to be to fly from Washington, D.C. to Kaua'i?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Kaua'i.

What documentation or ID do you need to fly to Kaua'i?

The travel and health documents required for your trip to Kaua'i can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Kaua'i. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$268 Cheap Flights from Washington, D.C. to Kaua'i in 2025

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

Round-trip

One-way

Last minute

Cheap round-trip flights

These are some of the best round-trip flight deals from Washington, D.C. to Kaua'i that have been recently found on momondo from popular airlines, departing in the coming months.

7:00 am - 8:31 pmBWI-LIH

19h 31m2 stops

11:00 am - 5:33 amLIH-BWI

12h 33m1 stop

$522Alaska Airlines

Find Deal

Tue, Sep 16 - Wed, Sep 24

8:10 am - 5:11 pmBWI-LIH

15h 01m2 stops

9:26 pm - 6:53 pmLIH-BWI

15h 27m2 stops

$528Delta

Find Deal

Fri, Aug 22 - Tue, Sep 2

7:29 am - 1:56 pmDCA-LIH

12h 27m1 stop

11:03 pm - 4:21 pmLIH-DCA

11h 18m1 stop

$535American Airlines

Find Deal

Wed, Aug 27 - Wed, Sep 17

9:00 am - 9:30 pmIAD-LIH

18h 30m1 stop

11:00 am - 7:32 amLIH-IAD

14h 32m1 stop

$535Alaska Airlines

Find Deal

Tue, Sep 16 - Wed, Sep 24

8:30 am - 3:36 pmBWI-LIH

13h 06m1 stop

7:40 pm - 3:14 pmLIH-BWI

13h 34m1 stop

$537United Airlines

Find Deal

Tue, Sep 16 - Wed, Sep 24

6:15 am - 3:36 pmBWI-LIH

15h 21m2 stops

12:57 pm - 9:55 amLIH-BWI

14h 58m2 stops

$548United Airlines

Find Deal

Tue, Sep 16 - Tue, Sep 23

7:29 am - 1:56 pmDCA-LIH

12h 27m1 stop

11:03 pm - 4:21 pmLIH-DCA

11h 18m1 stop

$560American Airlines

Find Deal

Wed, Aug 27 - Wed, Sep 17

8:30 am - 6:10 pmBWI-LIH

15h 40m2 stops

6:15 am - 5:00 amLIH-BWI

16h 45m2 stops

$608Southwest

Find Deal

Sat, Sep 13 - Sat, Sep 27

6:05 am - 2:40 pmBWI-LIH

14h 35m2 stops

6:15 am - 5:00 amLIH-BWI

16h 45m2 stops

$618Southwest

Find Deal

Tue, Sep 16 - Sat, Sep 27

8:10 am - 7:38 pmBWI-LIH

17h 28m2 stops

11:00 am - 5:33 amLIH-BWI

12h 33m1 stop

$3,064

Find Deal

Wed, Aug 13 - Fri, Aug 22

Alaska Airlines flights from Washington, D.C. to Kaua'i

Our best Alaska Airlines deals on Washington, D.C. to Kaua'i flight tickets

Alaska Airlines

Sep 16

BWI7:00 amBaltimore/Washington

19h 31m

2 stops

LIH8:31 pmLihue

Sep 24

LIH11:00 amLihue

12h 33m

1 stop

BWI5:33 amBaltimore/Washington

$522

Find similar

Alaska Airlines

Sep 16

IAD9:00 amWashington, D.C. Dulles Intl

18h 30m

1 stop

LIH9:30 pmLihue

Sep 24

LIH11:00 amLihue

14h 32m

1 stop

IAD7:32 amWashington, D.C. Dulles Intl

$535

Find similar

Alaska Airlines

Sep 16

IAD9:00 amWashington, D.C. Dulles Intl

17h 31m

2 stops

LIH8:31 pmLihue

Sep 23

LIH12:48 pmLihue

12h 44m

1 stop

IAD7:32 amWashington, D.C. Dulles Intl

$540

Find similar

Delta flights from Washington, D.C. to Kaua'i

Our best Delta deals on Washington, D.C. to Kaua'i flight tickets

Delta

Aug 22

BWI8:10 amBaltimore/Washington

15h 01m

2 stops

LIH5:11 pmLihue

Sep 2

LIH9:26 pmLihue

15h 27m

2 stops

BWI6:53 pmBaltimore/Washington

$528

Find similar

Delta

Aug 27

DCA7:30 amWashington, D.C. Reagan-National

15h 41m

2 stops

LIH5:11 pmLihue

Sep 17

LIH9:45 pmLihue

11h 50m

1 stop

DCA3:35 pmWashington, D.C. Reagan-National

$540

Find similar

Delta

Aug 27

DCA9:00 amWashington, D.C. Reagan-National

16h 16m

2 stops

LIH7:16 pmLihue

Sep 17

LIH9:26 pmLihue

16h 48m

2 stops

DCA8:14 pmWashington, D.C. Reagan-National

$546

Find similar

How to get the cheapest flight ticket from Washington, D.C. to Kaua'i

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

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

In general, September is the cheapest month to fly from Washington, D.C. to Kaua'i. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $615. The month of December is another great option to travel to Kaua'i, with average flight prices from Washington, D.C. averaging around $668.

What is the cheapest day to depart on your flight to Kaua'i?

According to our data, Wednesday is the cheapest day to fly to Kaua'i from Washington, D.C.. The lowest ticket price found for a Wednesday departure recently was $751. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $1,072. These prices are subject to change though, so be sure to set up a Price Alert for flights to Kaua'i.

What is the cheapest time of day to depart on your flight to Kaua'i?

The cheapest time of day to fly to Kaua'i is in the afternoon when flights can be purchased for as low as $785. In contrast, the most expensive time of day to depart to Kaua'i is at noon when prices are around $1,137.

Cheap Washington, D.C. to Kaua'i flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Kaua'i

Best Price Found	$268
Fastest flight time	12h 27m
Direct flights	None
Airports in Kaua'i	1 airport

The best one-way flight to Kaua'i from Washington, D.C. in the past 72 hours is $268. The best round-trip flight deal from Washington, D.C. to Kaua'i found on momondo in the last 72 hours is $522.

The fastest flight from Washington, D.C. to Kaua'i takes 12h 27m

There are no direct flights from Washington, D.C. to Kaua'i. Popular non-direct routes for this connection are Washington, D.C. Reagan-National Airport - Lihue Airport, Baltimore/Washington Airport - Lihue Airport and Washington, D.C. Dulles Intl Airport - Lihue Airport.

There is 1 airport near Kaua'i: Lihue (LIH)

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When did momondo last update prices for flights from Washington, D.C. to Kaua'i?
Prices for flights from Washington, D.C. to Kaua'i refresh daily.
How many operators does momondo search for flights from Washington, D.C. to Kaua'i?
The number of operators available for flights from Washington, D.C. to Kaua'i is 5 as of May 2025.
How old do you have to be to fly from Washington, D.C. to Kaua'i?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Kaua'i.
What documentation or ID do you need to fly to Kaua'i?
The travel and health documents required for your trip to Kaua'i can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Kaua'i. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Washington, D.C. to Kaua'i?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Washington, D.C. to Kaua'i is Airbus A320neo (16.00% of total bookings). The next most popular plane models are Boeing 777 (13.13%), Boeing 737 MAX 8 (6.69%), and Boeing 737-900 (5.79%).

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

Compare and see reviews for airlines that fly from Washington, D.C. to Kaua'i with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $406	Free Cancellation	Rating 8.0 7,934 reviews	Search Delta flights
Alaska Airlines	PriceFrom $437	Free Cancellation	Rating 8.0 9,972 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $484	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $561	Free Cancellation	Rating 7.4 8,696 reviews	Search United Airlines flights
Southwest	PriceFrom $628	Free Cancellation	Rating 8.0 4,293 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Kaua'i?

It is quick and easy to find Washington, D.C. to Kaua'i flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Kaua'i that suits you.

Can I find flights from Washington, D.C. to Kaua'i with flexible booking policies on momondo?

Yes. All flights to Kaua'i from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington, D.C. to Kaua'i?

momondo helps you find the best flight between Washington, D.C. and Kaua'i by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington, D.C. to Kaua'i right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington, D.C. to Kaua'i now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Kaua'i and let you know when they change.