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

A quick flight from Washington, D.C. to Kaua'i can take about 13h 49m. Delta provides one of the quickest options available for as low as $445. There are 4854 mi between Washington, D.C. and Kaua'i. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines to fly from Washington, D.C. to Kaua'i one-way?

The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $216. However, be on the lookout for offers from United Airlines and Alaska Airlines, as they are both options that can get you from Washington, D.C. to Kaua'i for a low price.

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, Washington, D.C. Reagan-National - Lihue and Baltimore/Washington - Lihue.

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

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

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.

$175+ Flights from Washington, D.C. to Kaua'i

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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

Cheapest flights from Washington, D.C. to Kaua'i
Explore the most affordable flight options available from Washington, D.C. to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 9, 2025.

Wed 12/107:15 amIAD - LIH

1 stop17h 55mDelta

Sun 12/1410:55 pmLIH - IAD

2 stops14h 26mDelta

Deal found 12/6

$659

Wed 12/108:17 amIAD - LIH

1 stop13h 41mUnited Airlines

Sun 12/142:15 pmLIH - IAD

1 stop11h 36mUnited Airlines

Deal found 12/6

$683

Thu 12/118:17 amIAD - LIH

1 stop13h 41mUnited Airlines

Fri 12/268:30 pmLIH - IAD

1 stop11h 46mUnited Airlines

Deal found 12/7

$733

Thu 12/116:10 amDCA - LIH

2 stops17h 23mDelta

Fri 12/2610:43 pmLIH - DCA

1 stop12h 06mDelta

Deal found 12/7

$733

Thu 12/116:03 amIAD - LIH

2 stops17h 30mDelta

Fri 12/262:15 pmLIH - IAD

2 stops14h 31mDelta

Deal found 12/7

$739

Thu 12/117:00 amDCA - LIH

1 stop13h 48mAmerican Airlines

Fri 12/2610:45 pmLIH - DCA

1 stop11h 59mAmerican Airlines

Deal found 12/7

$743

Tue 12/306:20 amIAD - LIH

1 stop15h 44mUnited Airlines

Wed 12/312:29 pmLIH - IAD

1 stop11h 51mUnited Airlines

Deal found 12/6

$748

Fri 12/126:03 amIAD - LIH

2 stops17h 30mDelta

Fri 12/262:15 pmLIH - IAD

2 stops14h 31mDelta

Deal found 12/7

$769

Fri 12/126:10 amDCA - LIH

2 stops17h 23mDelta

Fri 12/2610:43 pmLIH - DCA

1 stop12h 06mDelta

Deal found 12/7

$824

Wed 12/246:20 amIAD - LIH

1 stop15h 44mUnited Airlines

Wed 12/312:29 pmLIH - IAD

1 stop11h 51mUnited Airlines

Deal found 12/6

$825

Tue 12/236:20 amIAD - LIH

1 stop15h 44mUnited Airlines

Wed 12/318:30 pmLIH - IAD

1 stop11h 46mUnited Airlines

Deal found 12/8

$841

Fri 12/126:15 amBWI - LIH

2 stops15h 00mSouthwest

Fri 12/269:10 pmLIH - BWI

1 stop12h 00mSouthwest

Deal found 12/7

$858

Best flights from Washington, D.C. to Kaua'i
Discover carefully curated flight deals from Washington, D.C. to Kaua'i that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 9, 2025.

Wed 1/77:30 amIAD - LIH

1 stop17h 25mDelta

Wed 1/149:31 pmLIH - IAD

2 stops20h 39mDelta

Deal found 12/8

$411

Sun 2/15:26 pmIAD - LIH

1 stop25h 19mAlaska Airlines

Tue 2/1010:25 amLIH - IAD

1 stop25h 39mAlaska Airlines

Deal found 12/6

$444

Wed 1/78:15 amIAD - LIH

1 stop13h 49mUnited Airlines

Wed 1/148:30 pmLIH - IAD

1 stop11h 47mUnited Airlines

Deal found 12/8

$445

Fri 1/98:40 amDCA - LIH

1 stop12h 57mAmerican Airlines

Tue 1/1311:00 pmLIH - DCA

1 stop11h 36mAmerican Airlines

Deal found 12/6

$475

Sun 2/19:59 amDCA - LIH

1 stop32h 16mAlaska Airlines

Tue 2/102:30 pmLIH - DCA

1 stop24h 30mAlaska Airlines

Deal found 12/6

$444

Wed 1/216:30 amDCA - LIH

2 stops15h 34mUnited Airlines

Wed 1/288:30 pmLIH - DCA

1 stop13h 29mUnited Airlines

Deal found 12/7

$447

Thu 1/86:05 amDCA - LIH

2 stops17h 16mDelta

Tue 1/139:31 pmLIH - DCA

1 stop13h 02mDelta

Deal found 12/7

$450

Thu 1/86:05 amDCA - LIH

2 stops17h 16mDelta

Mon 1/129:31 pmLIH - DCA

1 stop13h 02mDelta

Deal found 12/7

$450

Wed 1/75:26 pmIAD - LIH

2 stops26h 30mAlaska Airlines

Wed 1/1411:38 amLIH - IAD

2 stops24h 26mAlaska Airlines

Deal found 12/8

$456

Sun 2/16:00 amBWI - LIH

2 stops15h 37mAmerican Airlines

Tue 2/1010:10 pmLIH - BWI

2 stops14h 42mAmerican Airlines

Deal found 12/8

$540

Thu 1/86:05 amDCA - LIH

2 stops17h 16mDelta

Wed 1/1410:45 pmLIH - DCA

1 stop11h 35mDelta

Deal found 12/7

$450

Mon 3/25:00 pmDCA - LIH

1 stop34h 18mAlaska Airlines

Wed 3/49:00 pmLIH - DCA

2 stops15h 59mAlaska Airlines

Deal found 12/8

$470

Thu 1/86:00 amIAD - LIH

2 stops17h 21mDelta

Wed 1/149:31 pmLIH - IAD

2 stops14h 15mDelta

Deal found 12/7

$456

Thu 1/86:05 amDCA - LIH

2 stops17h 16mDelta

Thu 1/159:31 pmLIH - DCA

2 stops16h 11mDelta

Deal found 12/7

$456

Mon 3/26:46 pmBWI - LIH

1 stop32h 32mAlaska Airlines

Wed 3/411:19 pmLIH - BWI

1 stop13h 27mAlaska Airlines

Deal found 12/8

$536

Tue 1/68:20 amBWI - LIH

1 stop13h 44mUnited Airlines

Tue 1/138:30 pmLIH - BWI

1 stop13h 34mUnited Airlines

Deal found 12/7

$651

Thu 1/86:05 amDCA - LIH

2 stops17h 16mDelta

Sun 1/1110:45 pmLIH - DCA

1 stop11h 35mDelta

Deal found 12/7

$480

Mon 3/28:00 amBWI - LIH

1 stop14h 04mUnited Airlines

Wed 3/48:40 pmLIH - BWI

2 stops14h 18mUnited Airlines

Deal found 12/7

$674

Sun 2/17:14 pmBWI - LIH

1 stop32h 27mAlaska Airlines

Tue 2/105:25 pmLIH - BWI

2 stops19h 49mAlaska Airlines

Deal found 12/6

$601

Fri 2/208:00 amBWI - LIH

2 stops19h 44mUnited Airlines

Mon 2/2311:59 pmLIH - BWI

1 stop12h 21mUnited Airlines

Deal found 12/6

$678

Sun 2/17:22 amBWI - LIH

2 stops17h 32mDelta

Tue 2/1010:35 pmLIH - BWI

2 stops20h 09mDelta

Deal found 12/6

$540

Wed 1/76:00 amBWI - LIH

2 stops17h 21mDelta

Wed 1/149:31 pmLIH - BWI

2 stops13h 07mDelta

Deal found 12/7

$577

Fri 1/306:00 amBWI - LIH

2 stops17h 31mDelta

Thu 2/59:20 pmLIH - BWI

2 stops14h 18mDelta

Deal found 12/6

$614

Mon 1/56:05 amBWI - LIH

2 stops17h 16mDelta

Mon 1/1210:45 pmLIH - BWI

2 stops16h 43mDelta

Deal found 12/7

$664

Last-minute flights from Washington, D.C. to Kaua'i
Discover last-minute flight deals from Washington, D.C. to Kaua'i. Data last updated December 9, 2025 and is based on user searches.

Wed 1/77:30 amIAD - LIH

1 stop17h 25mDelta

Wed 1/149:31 pmLIH - IAD

2 stops20h 39mDelta

Deal found 12/8

$411

Wed 1/78:15 amIAD - LIH

1 stop13h 49mUnited Airlines

Wed 1/148:30 pmLIH - IAD

1 stop11h 47mUnited Airlines

Deal found 12/8

$445

Wed 1/77:30 amIAD - LIH

1 stop17h 25mDelta

Fri 1/169:31 pmLIH - IAD

2 stops14h 15mDelta

Deal found 12/7

$480

Thu 1/86:05 amDCA - LIH

2 stops17h 16mDelta

Tue 1/139:31 pmLIH - DCA

1 stop13h 02mDelta

Deal found 12/7

$450

Thu 1/86:00 amIAD - LIH

2 stops17h 21mDelta

Tue 1/139:31 pmLIH - IAD

2 stops14h 46mDelta

Deal found 12/7

$456

Thu 1/86:05 amDCA - LIH

2 stops17h 16mDelta

Wed 1/149:31 pmLIH - DCA

2 stops15h 58mDelta

Deal found 12/7

$456

Fri 1/98:40 amDCA - LIH

1 stop12h 57mAmerican Airlines

Tue 1/1311:00 pmLIH - DCA

1 stop11h 36mAmerican Airlines

Deal found 12/6

$475

Fri 1/96:59 amDCA - LIH

2 stops16h 22mDelta

Thu 1/159:31 pmLIH - DCA

1 stop13h 02mDelta

Deal found 12/7

$480

Fri 1/96:00 amIAD - LIH

2 stops17h 21mDelta

Tue 1/139:31 pmLIH - IAD

2 stops14h 15mDelta

Deal found 12/6

$486

Wed 1/218:59 amDCA - LIH

1 stop33h 04mAlaska Airlines

Wed 1/282:30 pmLIH - DCA

1 stop24h 30mAlaska Airlines

Deal found 12/7

$444

Wed 1/216:30 amDCA - LIH

2 stops15h 34mUnited Airlines

Wed 1/288:30 pmLIH - DCA

1 stop13h 29mUnited Airlines

Deal found 12/7

$447

Tue 1/279:54 amDCA - LIH

2 stops15h 01mDelta

Mon 2/29:20 pmLIH - DCA

1 stop13h 00mDelta

Deal found 12/9

$431

One-way flights from Washington, D.C. to Kaua'i
Search for one-way flight options from Washington, D.C. to Kaua'i. Find affordable one-way fares based on user searches. Data last updated December 9, 2025.

Tue 2/242:00 pmDCA - LIH

3 stops28h 49mMultiple Airlines

Deal found 12/9

$175

Wed 1/78:59 amDCA - LIH

3 stops33h 50mMultiple Airlines

Deal found 12/7

$191

Tue 2/247:05 amBWI - LIH

2 stops17h 50mDelta

Deal found 12/9

$217

Wed 1/77:30 amIAD - LIH

1 stop17h 25mDelta

Deal found 12/7

$223

Tue 2/248:30 amDCA - LIH

1 stop14h 02mAmerican Airlines

Deal found 12/9

$223

Tue 2/246:00 amIAD - LIH

2 stops17h 31mDelta

Deal found 12/9

$228

Tue 1/66:57 pmDCA - LIH

2 stops23h 52mAlaska Airlines

Deal found 12/7

$228

Tue 1/136:00 amIAD - LIH

3 stops37h 56mMultiple Airlines

Deal found 12/9

$233

Fri 1/95:41 pmIAD - LIH

3 stops49h 08mMultiple Airlines

Deal found 12/7

$242

Sun 1/117:30 amIAD - LIH

1 stop17h 25mDelta

Deal found 12/9

$243

Wed 1/72:05 pmBWI - LIH

3 stops30h 07mMultiple Airlines

Deal found 12/7

$244

Wed 1/146:00 amIAD - LIH

2 stops36h 15mMultiple Airlines

Deal found 12/9

$249

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

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$411 (Delta)
One-way from	$175 (Kiwi.com)
Popular in	December
Cheapest in	September
Average price	$1,188

Provider with most accurate pricing for Washington, D.C. (WAS)-Lihue flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Lihue flights.

Search Deals

From Washington, D.C. (WAS) to Kaua'i

Search Deals

One-way flight from Washington, D.C. (WAS) to Kaua'i

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($43 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Kaua'i that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Wed 1/7

7:30 am-7:55 pm

1 stop17h 25m

Lihue

Wed 1/14

9:31 pm-11:10 pm

2 stops20h 39m

$411

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Sun 2/1

5:26 pm-1:45 pm

1 stop25h 19m

Lihue

Tue 2/10

10:25 am-5:04 pm

1 stop25h 39m

$444

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Sun 2/1

9:59 am-1:15 pm

1 stop32h 16m

Lihue

Tue 2/10

2:30 pm-8:00 pm

1 stop24h 30m

$444

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Wed 1/7

8:15 am-5:04 pm

1 stop13h 49m

Lihue

Wed 1/14

8:30 pm-1:17 pm

1 stop11h 47m

$445

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Wed 1/21

6:30 am-5:04 pm

2 stops15h 34m

Lihue

Wed 1/28

8:30 pm-2:59 pm

1 stop13h 29m

$447

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Thu 1/8

6:05 am-6:21 pm

2 stops17h 16m

Lihue

Tue 1/13

9:31 pm-3:33 pm

1 stop13h 02m

$450

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Thu 1/8

6:05 am-6:21 pm

2 stops17h 16m

Lihue

Mon 1/12

9:31 pm-3:33 pm

1 stop13h 02m

$450

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Thu 1/8

6:05 am-6:21 pm

2 stops17h 16m

Lihue

Wed 1/14

10:45 pm-3:20 pm

1 stop11h 35m

$450

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Wed 1/7

5:26 pm-2:56 pm

2 stops26h 30m

Lihue

Wed 1/14

11:38 am-5:04 pm

2 stops24h 26m

$456

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Thu 1/8

6:00 am-6:21 pm

2 stops17h 21m

Lihue

Wed 1/14

9:31 pm-4:46 pm

2 stops14h 15m

$456

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 54 results

...

Best time to book a flight from Washington, D.C. to Kaua'i

Have a flexible travel schedule? Discover the best time to fly to Kaua'i from Washington, D.C. 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 Washington, D.C. to Kaua'i

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 $247). Flying from Washington, D.C. to Kaua'i in March is currently the most expensive (average of $691). 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 WAS to FUS?

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to Kaua'i in the morning. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight in the evening.

Reviews of airlines servicing Kaua'i

Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta 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

8.0

Very good

11,423 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

8.0

Very good

11,423 reviews

Alaska Airlines

8.0

Very good

11,423 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

Southwest

7.9

Good

4,253 reviews

Alaska Airlines

8.0

Very good

11,423 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

Delta

7.9

Good

8,007 reviews

Alaska Airlines

8.0

Very good

11,423 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

United Airlines

7.4

Good

9,092 reviews

Alaska Airlines

8.0

Very good

11,423 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

American Airlines

7.2

Good

11,048 reviews

Alaska Airlines

8.0

Very good

11,423 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

Related info for your journey

How long is the flight from Washington, D.C. to Kaua'i?
A quick flight from Washington, D.C. to Kaua'i can take about 13h 49m. Delta provides one of the quickest options available for as low as $445. There are 4854 mi between Washington, D.C. and Kaua'i. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines to fly from Washington, D.C. to Kaua'i one-way?
The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $216. However, be on the lookout for offers from United Airlines and Alaska Airlines, as they are both options that can get you from Washington, D.C. to Kaua'i for a low price.
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, Washington, D.C. Reagan-National - Lihue and Baltimore/Washington - 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 $247). Flying from Washington, D.C. to Kaua'i in March is currently the most expensive (average of $691). 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 Washington, D.C. to Kaua'i

Dulles Intl to Honolulu flights

Reagan-National to Honolulu flights

Dulles Intl to Kahului flights

Dulles Intl to Kailua-Kona flights

Reagan-National to Kahului flights

Dulles Intl to Lihue flights

Reagan-National to Kailua-Kona flights

Reagan-National to Lihue flights

Dulles Intl to Hilo flights

Reagan-National to Hilo flights

Dulles Intl to Kapalua flights

Dulles Intl to Waimea (Big Island) flights

Dulles Intl to Hana flights

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

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$406	Average$669	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$499	Average$890	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$504	Average$710	FlexibilityNo cancel fee	On-time71%
Alaska Airlines	Cheapest$515	Average$723	FlexibilityNo cancel fee	On-time75%
Southwest	Cheapest$671	Average$813	FlexibilityNo cancel fee	On-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$175+ Cheap flights from Washington, D.C. (WAS) 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.

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

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

Cheapest flights from Washington, D.C. to Kaua'iExplore the most affordable flight options available from Washington, D.C. to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 9, 2025.

Explore the most affordable flight options available from Washington, D.C. to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 9, 2025.

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

Keep the following information in mind while searching for Washington, D.C. to Kaua'i flight deals. Data was last updated December 9, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Kaua'i that are best for you.

Best time to book a flight from Washington, D.C. to Kaua'i

Have a flexible travel schedule? Discover the best time to fly to Kaua'i from Washington, D.C. with our price prediction graph.

Cheapflights Insights

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

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

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

Find hourly flight availability from Washington, D.C. 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 December 9, 2025.

Reviews of airlines servicing Kaua'i

Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta 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

Find useful and relevant information for your journey from Washington, D.C. to Kaua'i. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

What are the cheapest airlines to fly from Washington, D.C. to Kaua'i one-way?

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.

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Washington, D.C. to Kaua'i
Explore the most affordable flight options available from Washington, D.C. to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 9, 2025.