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

Currently, July is the cheapest month in which you can book a flight from Kaua'i to Washington, D.C. Dulles Intl Airport (average of $302). Flying from Kaua'i to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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

When flying from Kaua'i to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

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

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

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

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

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Cheap flight deals from Kaua'i to Dulles Intl

Round-trip from	$613 (United Airlines)
One-way from	$226 (United Airlines)

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

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

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Find flight deals from Kaua'i to Dulles Intl

Cheapest flights from Kaua'i to Dulles Intl
Explore the most affordable flight options available from Kaua'i to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2025.

Thu 8/287:40 pmLIH - IAD

1 stop11h 46mUnited Airlines

Mon 9/18:15 amIAD - LIH

1 stop13h 21mUnited Airlines

Deal found 8/12

$613

Sun 9/710:30 pmLIH - IAD

1 stop27h 03mAlaska Airlines

Fri 9/266:09 pmIAD - LIH

1 stop33h 21mAlaska Airlines

Deal found 8/14

$2,090

Best flights from Kaua'i to Dulles Intl
Discover carefully curated flight deals from Kaua'i to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 16, 2025.

Thu 8/287:40 pmLIH - IAD

1 stop11h 46mUnited Airlines

Mon 9/18:15 amIAD - LIH

1 stop13h 21mUnited Airlines

Deal found 8/12

$613

Sun 9/710:30 pmLIH - IAD

1 stop27h 03mAlaska Airlines

Fri 9/266:09 pmIAD - LIH

1 stop33h 21mAlaska Airlines

Deal found 8/14

$2,090

Last-minute flights from Kaua'i to Dulles Intl
Discover last-minute flight deals from Kaua'i to Dulles Intl. Data last updated August 16, 2025 and is based on user searches.

Thu 8/287:40 pmLIH - IAD

1 stop11h 46mUnited Airlines

Mon 9/18:15 amIAD - LIH

1 stop13h 21mUnited Airlines

Deal found 8/12

$613

Sun 9/710:30 pmLIH - IAD

1 stop27h 03mAlaska Airlines

Fri 9/266:09 pmIAD - LIH

1 stop33h 21mAlaska Airlines

Deal found 8/14

$2,090

One-way flights from Kaua'i to Dulles Intl
Search for one-way flight options from Kaua'i to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated August 16, 2025.

Thu 9/1112:57 pmLIH - IAD

1 stop12h 03mUnited Airlines

Deal found 8/14

$226

Thu 9/251:44 pmLIH - IAD

2 stops15h 13mAmerican Airlines

Deal found 8/14

$231

Sun 9/2111:01 amLIH - IAD

2 stops23h 51mAlaska Airlines

Deal found 8/13

$269

Thu 9/1111:01 amLIH - IAD

3 stops31h 14mMultiple Airlines

Deal found 8/14

$280

Thu 9/2512:50 pmLIH - IAD

1 stop13h 25mUnited Airlines

Deal found 8/14

$296

Thu 8/287:40 pmLIH - IAD

1 stop11h 46mUnited Airlines

Deal found 8/14

$307

Sun 10/59:40 pmLIH - IAD

2 stops16h 05mAmerican Airlines

Deal found 8/14

$312

Sun 9/2811:01 amLIH - IAD

2 stops23h 51mAlaska Airlines

Deal found 8/13

$316

Sun 10/512:50 pmLIH - IAD

1 stop13h 25mUnited Airlines

Deal found 8/14

$318

Thu 9/259:07 amLIH - IAD

3 stops21h 48mMultiple Airlines

Deal found 8/13

$326

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LihueWashington, D.C.

LIH - IAD

LIHIAD

Lihue

Thu 8/28

7:40 pm-1:26 pm

1 stop11h 46m

Washington, D.C. Dulles Intl

Mon 9/1

8:15 am-3:36 pm

1 stop13h 21m

$613

LihueWashington, D.C.

LIH - IAD

LIHIAD

Lihue

Sun 9/7

10:30 pm-7:33 am

1 stop27h 03m

Washington, D.C. Dulles Intl

Fri 9/26

6:09 pm-9:30 pm

1 stop33h 21m

$2,090

LihueWashington, D.C.

LIH - IAD

LIHIAD

Lihue

Thu 9/11

12:57 pm-7:00 am

1 stop12h 03m

$226

LihueWashington, D.C.

LIH - IAD

LIHIAD

Lihue

Tue 9/30

12:50 pm-8:15 am

1 stop13h 25m

$226

LihueWashington, D.C.

LIH - IAD

LIHIAD

Lihue

Thu 9/25

12:50 pm-8:15 am

1 stop13h 25m

$226

LihueWashington, D.C.

LIH - IAD

LIHIAD

Lihue

Thu 10/30

5:15 pm-5:13 pm

2 stops17h 58m

$231

LihueWashington, D.C.

LIH - IAD

LIHIAD

Lihue

Thu 9/11

1:44 pm-10:57 am

2 stops15h 13m

$231

LihueWashington, D.C.

LIH - IAD

LIHIAD

Lihue

Tue 9/30

1:44 pm-10:57 am

2 stops15h 13m

$231

LihueWashington, D.C.

LIH - IAD

LIHIAD

Lihue

Thu 9/25

1:44 pm-10:57 am

2 stops15h 13m

$231

LihueWashington, D.C.

LIH - IAD

LIHIAD

Lihue

Thu 10/30

9:40 pm-6:54 pm

2 stops15h 14m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 11 results

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

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

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Kaua'i to Washington, D.C. Dulles Intl Airport, such as 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.

United Airlines

7.4

Good

8,916 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines

7.4

Good

8,916 reviews

United Airlines

7.4

Good

8,916 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Can I find deals for flights from Kaua'i to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Kaua'i to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Kaua'i to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kaua'i to Dulles Intl.
Can I find deals for business class flights from Kaua'i to Dulles Intl?
Yes. Cheapflights offers flight deals from Kaua'i to Dulles Intl 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 Kaua'i to Washington, D.C. Dulles Intl Airport?
Currently, July is the cheapest month in which you can book a flight from Kaua'i to Washington, D.C. Dulles Intl Airport (average of $302). Flying from Kaua'i to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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

Woodbridge

Arlington

Alexandria

Tysons

Silver Spring

Springfield

Fredericksburg

Gaithersburg

Towson

Linthicum Heights

Fairfax

Manassas

Falls Church

Laurel

Rockville

Oxon Hill

National Harbor

Dundalk

Waldorf

Bowie

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Kaua'i to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$559	Average$694	FlexibilityNo cancel fee	On-time69%

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$226+ Cheap flights from Kaua'i to Dulles Intl (IAD)

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Kaua'i to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Kaua'i to Dulles Intl

Keep the following information in mind while searching for Kaua'i to Dulles Intl flight deals. Data was last updated August 16, 2025.

Round-trip from

One-way from

Find flight deals from Kaua'i to Dulles Intl

Cheapest flights from Kaua'i to Dulles IntlExplore the most affordable flight options available from Kaua'i to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2025.

Explore the most affordable flight options available from Kaua'i to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2025.

Cheapflights Fare Finder

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

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

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

Cheapflights Insights

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

Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Kaua'i to Washington, D.C. Dulles Intl Airport, such as 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.

Related info for your journey

Find useful and relevant information for your journey from Kaua'i to Dulles Intl. 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 Kaua'i to Dulles Intl that include hotel bookings?

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

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

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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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 Kaua'i to Dulles Intl

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

Top airline flying from Kaua'i to Dulles Intl

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Kaua'i to Dulles Intl
Explore the most affordable flight options available from Kaua'i to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2025.