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Cheap flights from Washington, D.C. to Kaua'i from $229

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Kaua'i departing on 10/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. to Kaua'i

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:26 pm - 1:15 pmBWI-LIH
21h 49m1 stop
Multiple Airlines Logo
7:59 pm - 7:19 pmLIH-BWI
18h 20m2 stops
$430Multiple Airlines
Find Deal
Mon, Jan 12 - Wed, Jan 21
Multiple Airlines Logo
8:26 pm - 1:15 pmBWI-LIH
21h 49m1 stop
Multiple Airlines Logo
2:30 pm - 7:19 pmLIH-BWI
23h 49m1 stop
$443Multiple Airlines
Find Deal
Mon, Jan 12 - Wed, Jan 21
Alaska Airlines Logo
8:59 am - 1:53 pmDCA-LIH
33h 54m1 stop
Alaska Airlines Logo
2:53 pm - 9:02 pmLIH-DCA
25h 09m1 stop
$446Alaska Airlines
Find Deal
Wed, Dec 3 - Thu, Dec 11
Alaska Airlines Logo
8:59 am - 1:08 pmDCA-LIH
33h 09m1 stop
Alaska Airlines Logo
2:30 pm - 8:00 pmLIH-DCA
24h 30m1 stop
$456Alaska Airlines
Find Deal
Mon, Jan 12 - Wed, Jan 21
United Airlines Logo
8:25 am - 3:58 pmIAD-LIH
13h 33m1 stop
United Airlines Logo
8:30 pm - 1:18 pmLIH-IAD
11h 48m1 stop
$457United Airlines
Find Deal
Tue, Oct 28 - Tue, Nov 4
United Airlines Logo
6:30 am - 3:58 pmIAD-LIH
15h 28m2 stops
United Airlines Logo
8:30 pm - 1:18 pmLIH-IAD
11h 48m1 stop
$462United Airlines
Find Deal
Tue, Oct 28 - Tue, Nov 4
Delta Logo
7:45 am - 4:53 pmDCA-LIH
15h 08m2 stops
Delta Logo
10:40 pm - 3:28 pmLIH-DCA
11h 48m1 stop
$462Delta
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Tue, Oct 28 - Tue, Nov 4
American Airlines Logo
7:00 am - 3:59 pmDCA-LIH
13h 59m1 stop
American Airlines Logo
10:39 pm - 6:44 pmLIH-DCA
15h 05m2 stops
$463American Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
Delta Logo
7:15 am - 8:04 pmIAD-LIH
17h 49m1 stop
Delta Logo
10:55 pm - 9:32 pmLIH-IAD
17h 37m2 stops
$466Delta
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Sun, Nov 9 - Thu, Nov 13
American Airlines Logo
6:00 am - 4:37 pmDCA-LIH
15h 37m2 stops
American Airlines Logo
10:20 pm - 6:44 pmLIH-DCA
15h 24m2 stops
$472American Airlines
Find Deal
Sun, Jan 11 - Tue, Jan 20

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

Our best United Airlines deals on Washington, D.C. to Kaua'i flight tickets
United Airlines
Oct 28
IAD8:25 amWashington, D.C. Dulles Intl
13h 33m
1 stop
LIH3:58 pmLihue
Nov 4
LIH8:30 pmLihue
11h 48m
1 stop
IAD1:18 pmWashington, D.C. Dulles Intl
$457
Find similar
United Airlines
Oct 28
IAD6:30 amWashington, D.C. Dulles Intl
15h 28m
2 stops
LIH3:58 pmLihue
Nov 4
LIH8:30 pmLihue
11h 48m
1 stop
IAD1:18 pmWashington, D.C. Dulles Intl
$462
Find similar
United Airlines
Oct 28
BWI8:15 amBaltimore/Washington
13h 43m
1 stop
LIH3:58 pmLihue
Nov 4
LIH8:30 pmLihue
13h 40m
1 stop
BWI3:10 pmBaltimore/Washington
$465
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
Oct 28
DCA7:45 amWashington, D.C. Reagan-National
15h 08m
2 stops
LIH4:53 pmLihue
Nov 4
LIH10:40 pmLihue
11h 48m
1 stop
DCA3:28 pmWashington, D.C. Reagan-National
$462
Find similar
Delta
Nov 9
IAD7:15 amWashington, D.C. Dulles Intl
17h 49m
1 stop
LIH8:04 pmLihue
Nov 13
LIH10:55 pmLihue
17h 37m
2 stops
IAD9:32 pmWashington, D.C. Dulles Intl
$466
Find similar
Delta
Nov 9
BWI7:15 amBaltimore/Washington
17h 49m
2 stops
LIH8:04 pmLihue
Nov 13
LIH10:55 pmLihue
18h 17m
2 stops
BWI10:12 pmBaltimore/Washington
$476
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Kaua'i that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 2, 2025.
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

BaltimoreLihue

BWI - LIH

BWILIH

Baltimore/Washington

Mon 1/12

8:26 pm-1:15 pm

1 stop21h 49m

Lihue

Wed 1/21

7:59 pm-7:19 pm

2 stops18h 20m

$430

BaltimoreLihue

BWI - LIH

BWILIH

Baltimore/Washington

Mon 1/12

8:26 pm-1:15 pm

1 stop21h 49m

Lihue

Wed 1/21

2:30 pm-7:19 pm

1 stop23h 49m

$443

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Wed 12/3

8:59 am-1:53 pm

1 stop33h 54m

Lihue

Thu 12/11

2:53 pm-9:02 pm

1 stop25h 09m

$446

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Mon 1/12

8:59 am-1:08 pm

1 stop33h 09m

Lihue

Wed 1/21

2:30 pm-8:00 pm

1 stop24h 30m

$456

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Tue 10/28

8:25 am-3:58 pm

1 stop13h 33m

Lihue

Tue 11/4

8:30 pm-1:18 pm

1 stop11h 48m

$457

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Tue 10/28

6:30 am-3:58 pm

2 stops15h 28m

Lihue

Tue 11/4

8:30 pm-1:18 pm

1 stop11h 48m

$462

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Tue 10/28

7:45 am-4:53 pm

2 stops15h 08m

Lihue

Tue 11/4

10:40 pm-3:28 pm

1 stop11h 48m

$462

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Tue 11/11

7:00 am-3:59 pm

1 stop13h 59m

Lihue

Tue 11/18

10:39 pm-6:44 pm

2 stops15h 05m

$463

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Sun 11/9

7:15 am-8:04 pm

1 stop17h 49m

Lihue

Thu 11/13

10:55 pm-9:32 pm

2 stops17h 37m

$466

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Sun 1/11

6:00 am-4:37 pm

2 stops15h 37m

Lihue

Tue 1/20

10:20 pm-6:44 pm

2 stops15h 24m

$472

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Kaua'i from

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

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 $630. The month of December is another great option to travel to Kaua'i, with average flight prices from Washington, D.C. averaging around $675.

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.

How far in advance should I book a flight to Kaua'i?

You are more likely to see cheaper flights to Kaua'i from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Kaua'i for around $826 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kaua'i from Washington, D.C. for as low as $604 on momondo.

Can stopping save me money on Washington, D.C. to Kaua'i flights?

No. A direct flight is the cheapest option for a flight between Washington, D.C. to Kaua'i.

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

Direct flights

None
There are no direct flights from Washington, D.C. to Kaua'i. There are no popular flight routes from Washington, D.C. to Kaua'i.
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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?

  • 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?

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
DeltaPriceFrom $406Free CancellationRating
7.9
7,962 reviews
Search Delta flights
American AirlinesPriceFrom $484Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $499Free CancellationRating
7.4
8,933 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $515Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $671Free CancellationRating
8.0
4,248 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.

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