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 airlines that fly from Washington, D.C. Dulles Intl Airport to Kaua'i?

Before booking your flight from Washington, D.C. Dulles Intl Airport to Kaua'i check out the most popular airlines for this route: Alaska Airlines, Delta or United Airlines.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Kaua'i?

Find a great deal and save up to 41% by booking at least 49 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Washington, D.C. Dulles Intl Airport to Kaua'i within the next two weeks, with the cheapest ticket starting at $730.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Kaua'i?

Our data shows that September tends to be the cheapest month to fly to Kaua'i from Washington, D.C. Dulles Intl Airport. Users have commonly found prices around $766 for the month, but tickets can be as low as $446. Due to multiple factors, prepare for potentially higher prices in March.

Can I find deals for flights from Dulles Intl to Kaua'i that include hotel bookings?

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

How can I find direct flights from Dulles Intl to Kaua'i?

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

Can I find deals for business class flights from Dulles Intl to Kaua'i?

Yes. Cheapflights offers flight deals from Dulles Intl 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.

$226+ Cheap Flights from Washington, D.C. Dulles Intl Airport to Kaua'i

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Cheap flight deals from Dulles Intl to Kaua'i

Round-trip from	$450 (Alaska Airlines)
One-way from	$226 (Delta)
Popular in	March
Cheapest in	September
Average price	$833

From Washington, D.C. Dulles Intl to Kaua'i

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One-way flight from Washington, D.C. Dulles Intl to Kaua'i

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Highest demand for flights based on searches. 7% potential increase in price ($64 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Find flight deals from Dulles Intl to Kaua'i

Cheapest flights from Dulles Intl to Kaua'i
Explore the most affordable flight options available from Dulles Intl to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Sun 12/75:51 pmIAD - LIH

1 stop25h 55mAlaska Airlines

Thu 12/1111:00 amLIH - IAD

1 stop25h 25mAlaska Airlines

Deal found 8/13

$450

Wed 11/267:53 amIAD - LIH

1 stop19h 21mAlaska Airlines

Wed 12/310:10 pmLIH - IAD

1 stop14h 45mAlaska Airlines

Deal found 8/12

$451

Wed 10/298:25 amIAD - LIH

1 stop13h 33mUnited Airlines

Tue 11/48:30 pmLIH - IAD

2 stops14h 25mUnited Airlines

Deal found 8/12

$456

Sun 11/97:43 amIAD - LIH

2 stops30h 12mAlaska Airlines

Thu 11/131:15 pmLIH - IAD

2 stops22h 58mAlaska Airlines

Deal found 8/12

$462

Thu 9/256:30 amIAD - LIH

1 stop15h 06mUnited Airlines

Mon 9/297:40 pmLIH - IAD

1 stop11h 48mUnited Airlines

Deal found 8/13

$467

Mon 9/156:15 amIAD - LIH

2 stops17h 06mDelta

Mon 9/228:32 pmLIH - IAD

2 stops15h 50mDelta

Deal found 8/13

$470

Mon 9/87:35 amIAD - LIH

1 stop17h 28mDelta

Mon 9/158:32 pmLIH - IAD

2 stops13h 55mDelta

Deal found 8/13

$492

Sun 9/77:35 amIAD - LIH

1 stop17h 28mDelta

Tue 9/169:40 pmLIH - IAD

1 stop26h 21mDelta

Deal found 8/12

$513

Tue 9/307:35 amIAD - LIH

1 stop17h 24mDelta

Thu 10/99:40 pmLIH - IAD

1 stop21h 00mDelta

Deal found 8/12

$514

Best flights from Dulles Intl to Kaua'i
Discover carefully curated flight deals from Dulles Intl to Kaua'i that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2025.

Wed 10/298:25 amIAD - LIH

1 stop13h 33mUnited Airlines

Tue 11/48:30 pmLIH - IAD

1 stop11h 48mUnited Airlines

Deal found 8/12

$451

Sun 11/97:43 amIAD - LIH

2 stops30h 12mAlaska Airlines

Thu 11/131:15 pmLIH - IAD

2 stops22h 58mAlaska Airlines

Deal found 8/12

$462

Mon 9/156:15 amIAD - LIH

2 stops17h 06mDelta

Mon 9/228:32 pmLIH - IAD

2 stops15h 50mDelta

Deal found 8/13

$470

Thu 9/256:30 amIAD - LIH

1 stop15h 06mUnited Airlines

Mon 9/297:40 pmLIH - IAD

1 stop11h 48mUnited Airlines

Deal found 8/13

$467

Mon 9/87:35 amIAD - LIH

1 stop17h 28mDelta

Mon 9/158:32 pmLIH - IAD

2 stops13h 55mDelta

Deal found 8/13

$492

Sun 9/77:35 amIAD - LIH

1 stop17h 28mDelta

Wed 9/179:40 pmLIH - IAD

1 stop26h 21mDelta

Deal found 8/12

$513

Tue 9/97:35 amIAD - LIH

1 stop17h 28mDelta

Thu 9/189:40 pmLIH - IAD

1 stop26h 21mDelta

Deal found 8/12

$513

Tue 9/97:35 amIAD - LIH

1 stop17h 28mDelta

Tue 9/169:40 pmLIH - IAD

1 stop26h 21mDelta

Deal found 8/12

$513

Last-minute flights from Dulles Intl to Kaua'i
Discover last-minute flight deals from Dulles Intl to Kaua'i. Data last updated August 14, 2025 and is based on user searches.

Thu 8/219:00 amIAD - LIH

1 stop18h 30mAlaska Airlines

Thu 8/2811:01 amLIH - IAD

2 stops23h 46mAlaska Airlines

Deal found 8/13

$678

Thu 8/219:00 amIAD - LIH

1 stop18h 30mAlaska Airlines

Sat 8/3012:28 pmLIH - IAD

2 stops22h 19mAlaska Airlines

Deal found 8/13

$706

Thu 8/216:04 pmIAD - LIH

2 stops24h 08mAmerican Airlines

Thu 8/281:45 pmLIH - IAD

2 stops15h 16mAmerican Airlines

Deal found 8/13

$712

Thu 8/217:00 amIAD - LIH

1 stop34h 47mUnited Airlines

Thu 8/287:40 pmLIH - IAD

1 stop13h 54mUnited Airlines

Deal found 8/13

$814

Thu 8/217:00 amIAD - LIH

1 stop34h 47mUnited Airlines

Sat 8/3012:57 pmLIH - IAD

1 stop13h 11mUnited Airlines

Deal found 8/13

$844

Fri 8/227:35 amIAD - LIH

1 stop17h 28mDelta

Tue 9/28:28 pmLIH - IAD

2 stops14h 02mDelta

Deal found 8/13

$648

Fri 8/2212:35 pmIAD - LIH

1 stop13h 23mUnited Airlines

Mon 9/17:40 pmLIH - IAD

1 stop13h 54mUnited Airlines

Deal found 8/14

$783

Fri 8/228:50 amIAD - LIH

2 stops17h 08mUnited Airlines

Tue 9/27:40 pmLIH - IAD

2 stops14h 12mUnited Airlines

Deal found 8/13

$874

Mon 9/87:35 amIAD - LIH

1 stop17h 28mDelta

Mon 9/158:32 pmLIH - IAD

2 stops13h 55mDelta

Deal found 8/14

$492

Thu 9/117:00 amIAD - LIH

1 stop20h 30mAlaska Airlines

Mon 9/159:07 amLIH - IAD

2 stops16h 26mAlaska Airlines

Deal found 8/14

$532

Thu 9/117:00 amIAD - LIH

1 stop20h 30mAlaska Airlines

Thu 9/189:07 amLIH - IAD

2 stops16h 26mAlaska Airlines

Deal found 8/14

$534

Mon 9/156:15 amIAD - LIH

2 stops17h 06mDelta

Mon 9/228:32 pmLIH - IAD

2 stops16h 07mDelta

Deal found 8/14

$470

One-way flights from Dulles Intl to Kaua'i
Search for one-way flight options from Dulles Intl to Kaua'i. Find affordable one-way fares based on user searches. Data last updated August 14, 2025.

Mon 9/227:35 amIAD - LIH

1 stop17h 24mDelta

Deal found 8/14

$226

Sat 1/315:51 pmIAD - LIH

1 stop25h 55mAlaska Airlines

Deal found 8/14

$231

Thu 9/117:00 amIAD - LIH

1 stop20h 30mAlaska Airlines

Deal found 8/14

$234

Fri 9/267:35 amIAD - LIH

1 stop17h 24mDelta

Deal found 8/13

$264

Thu 9/116:00 amIAD - LIH

2 stops17h 21mDelta

Deal found 8/14

$267

Sun 9/77:14 pmIAD - LIH

2 stops46h 42mMultiple Airlines

Deal found 8/13

$283

Fri 9/2610:17 amIAD - LIH

2 stops17h 13mMultiple Airlines

Deal found 8/13

$299

Mon 9/226:09 pmIAD - LIH

2 stops25h 47mAlaska Airlines

Deal found 8/14

$301

Tue 8/197:35 amIAD - LIH

1 stop17h 28mDelta

Deal found 8/13

$307

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport 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 10/29

8:25 am-3:58 pm

1 stop13h 33m

Lihue

Tue 11/4

8:30 pm-1:18 pm

1 stop11h 48m

$451

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Sun 11/9

7:43 am-8:55 am

2 stops30h 12m

Lihue

Thu 11/13

1:15 pm-5:13 pm

2 stops22h 58m

$462

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Thu 9/25

6:30 am-3:36 pm

1 stop15h 06m

Lihue

Mon 9/29

7:40 pm-1:28 pm

1 stop11h 48m

$467

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Mon 9/15

6:15 am-5:21 pm

2 stops17h 06m

Lihue

Mon 9/22

8:32 pm-6:22 pm

2 stops15h 50m

$470

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Mon 9/8

7:35 am-7:03 pm

1 stop17h 28m

Lihue

Mon 9/15

8:32 pm-4:27 pm

2 stops13h 55m

$492

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Sun 9/7

7:35 am-7:03 pm

1 stop17h 28m

Lihue

Wed 9/17

9:40 pm-6:01 am

1 stop26h 21m

$513

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Tue 9/9

7:35 am-7:03 pm

1 stop17h 28m

Lihue

Thu 9/18

9:40 pm-6:01 am

1 stop26h 21m

$513

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Tue 9/9

7:35 am-7:03 pm

1 stop17h 28m

Lihue

Tue 9/16

9:40 pm-6:01 am

1 stop26h 21m

$513

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Mon 9/22

7:35 am-6:59 pm

1 stop17h 24m

$226

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Mon 9/15

7:00 am-9:30 pm

1 stop20h 30m

$226

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 15 results

Best time to book a flight from Dulles Intl to Kaua'i

Have a flexible travel schedule? Discover the best time to fly to Kaua'i from Dulles Intl 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. Dulles Intl Airport to Kaua'i

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Kaua'i (average of $440). Flying from Washington, D.C. Dulles Intl Airport to Kaua'i in June is currently the most expensive (average of $689). 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 IAD to FUS?

When flying from Washington, D.C. Dulles Intl Airport 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

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Kaua'i, such as Alaska Airlines, Delta, and United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Delta

8.0

Very good

7,980 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

United Airlines

7.4

Good

8,916 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Related info for your journey

Can I find deals for flights from Dulles Intl to Kaua'i that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Kaua'i flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Kaua'i?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Kaua'i.
Can I find deals for business class flights from Dulles Intl to Kaua'i?
Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to Kaua'i?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Kaua'i (average of $440). Flying from Washington, D.C. Dulles Intl Airport to Kaua'i in June is currently the most expensive (average of $689). 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 Dulles Intl to Kaua'i

Top 3 airlines flying from Dulles Intl to Kaua'i

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$455	Average$768	FlexibilityNo cancel fee	On-timeN/A
Alaska Airlines	Cheapest$515	Average$725	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$596	Average$936	FlexibilityNo cancel fee	On-time69%

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$226+ Cheap flights from Dulles Intl (IAD) 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Dulles Intl to Kaua'i

Keep the following information in mind while searching for Dulles Intl to Kaua'i flight deals. Data was last updated August 14, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Dulles Intl to Kaua'i

Cheapest flights from Dulles Intl to Kaua'iExplore the most affordable flight options available from Dulles Intl to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Explore the most affordable flight options available from Dulles Intl to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Dulles Intl to Kaua'i

Have a flexible travel schedule? Discover the best time to fly to Kaua'i from Dulles Intl with our price prediction graph.

Cheapflights Insights

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

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

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

Find hourly flight availability from Dulles Intl 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 August 14, 2025.

Reviews of airlines servicing Kaua'i

Related info for your journey

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

Can I find deals for flights from Dulles Intl to Kaua'i that include hotel bookings?

How can I find direct flights from Dulles Intl to Kaua'i?

Can I find deals for business class flights from Dulles Intl to Kaua'i?

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

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Dulles Intl to Kaua'i

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Cheapest flights from Dulles Intl to Kaua'i
Explore the most affordable flight options available from Dulles Intl to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.