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).

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

To save up to 41% on this flight, we recommend booking at least 49 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Washington, D.C. Reagan-National Airport to Kaua'i from $730 1-2 weeks out and tickets from $730 for flights departing within the next 72 hours.

What is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Kaua'i?

September can be a great time to fly to Kaua'i from Washington, D.C. Reagan-National Airport with a flight ticket averaging about $766. Cheapflights users have found deals in the month of September for as cheap as $446. The most expensive prices can be found in the month of March.

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

When flying from Washington, D.C. Reagan-National 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.

Can I find deals for flights from Reagan-National to Kaua'i that include hotel bookings?

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

How can I find direct flights from Reagan-National to Kaua'i?

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

Can I find deals for business class flights from Reagan-National to Kaua'i?

Yes. Cheapflights offers flight deals from Reagan-National 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.

$239+ Flights from Washington, D.C. Reagan-National Airport to Kaua'i

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Cheap flight deals from Reagan-National to Kaua'i

Round-trip from	$502 (Delta)
One-way from	$239 (Delta)
Popular in	March
Cheapest in	September
Average price	$833

From Washington, D.C. Reagan-National to Kaua'i

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One-way flight from Washington, D.C. Reagan-National 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 Reagan-National to Kaua'i

Cheapest flights from Reagan-National to Kaua'i
Explore the most affordable flight options available from Reagan-National to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2025.

Fri 10/317:59 amDCA - LIH

2 stops17h 06mDelta

Mon 11/1010:45 pmLIH - DCA

1 stop11h 50mDelta

Deal found 8/20

$502

Wed 11/269:59 amDCA - LIH

1 stop32h 04mAlaska Airlines

Wed 12/32:53 pmLIH - DCA

1 stop25h 09mAlaska Airlines

Deal found 8/21

$520

Mon 9/156:10 amDCA - LIH

2 stops17h 11mDelta

Mon 9/229:40 pmLIH - DCA

1 stop11h 50mDelta

Deal found 8/20

$530

Wed 10/156:59 pmDCA - LIH

2 stops24h 33mAlaska Airlines

Wed 10/226:49 pmLIH - DCA

2 stops19h 40mAlaska Airlines

Deal found 8/21

$532

Wed 8/276:05 amDCA - LIH

2 stops17h 13mDelta

Wed 9/179:40 pmLIH - DCA

1 stop11h 50mDelta

Deal found 8/21

$545

Sun 9/79:40 amDCA - LIH

2 stops15h 23mDelta

Thu 9/188:32 pmLIH - DCA

2 stops15h 28mDelta

Deal found 8/20

$551

Thu 9/185:00 amDCA - LIH

2 stops15h 27mAmerican Airlines

Thu 9/259:40 pmLIH - DCA

1 stop12h 39mAmerican Airlines

Deal found 8/21

$561

Best flights from Reagan-National to Kaua'i
Discover carefully curated flight deals from Reagan-National to Kaua'i that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 21, 2025.

Fri 10/317:59 amDCA - LIH

2 stops17h 06mDelta

Mon 11/1010:45 pmLIH - DCA

1 stop11h 50mDelta

Deal found 8/20

$502

Wed 11/269:59 amDCA - LIH

1 stop32h 04mAlaska Airlines

Wed 12/32:53 pmLIH - DCA

1 stop25h 09mAlaska Airlines

Deal found 8/20

$520

Mon 9/156:10 amDCA - LIH

2 stops17h 11mDelta

Mon 9/229:40 pmLIH - DCA

1 stop11h 50mDelta

Deal found 8/20

$530

Wed 10/156:59 pmDCA - LIH

2 stops24h 33mAlaska Airlines

Wed 10/226:49 pmLIH - DCA

2 stops19h 40mAlaska Airlines

Deal found 8/21

$532

Mon 9/86:30 amDCA - LIH

2 stops16h 48mDelta

Mon 9/159:40 pmLIH - DCA

1 stop11h 50mDelta

Deal found 8/20

$545

Last-minute flights from Reagan-National to Kaua'i
Discover last-minute flight deals from Reagan-National to Kaua'i. Data last updated August 21, 2025 and is based on user searches.

Wed 8/276:59 amDCA - LIH

2 stops16h 19mDelta

Wed 9/179:40 pmLIH - DCA

1 stop11h 50mDelta

Deal found 8/20

$545

Thu 9/47:29 amDCA - LIH

1 stop12h 58mAmerican Airlines

Mon 9/89:40 pmLIH - DCA

1 stop12h 39mAmerican Airlines

Deal found 8/20

$613

Thu 9/46:00 amDCA - LIH

2 stops15h 36mUnited Airlines

Mon 9/811:10 pmLIH - DCA

1 stop11h 44mUnited Airlines

Deal found 8/20

$618

Sun 9/79:40 amDCA - LIH

2 stops15h 23mDelta

Thu 9/188:32 pmLIH - DCA

2 stops15h 28mDelta

Deal found 8/20

$551

Mon 9/156:10 amDCA - LIH

2 stops17h 11mDelta

Mon 9/229:40 pmLIH - DCA

1 stop11h 50mDelta

Deal found 8/20

$530

Thu 9/185:00 amDCA - LIH

2 stops15h 27mAmerican Airlines

Thu 9/259:40 pmLIH - DCA

1 stop12h 39mAmerican Airlines

Deal found 8/21

$561

Sun 9/286:00 amDCA - LIH

2 stops17h 21mDelta

Fri 10/39:40 pmLIH - DCA

1 stop11h 50mDelta

Deal found 8/20

$590

One-way flights from Reagan-National to Kaua'i
Search for one-way flight options from Reagan-National to Kaua'i. Find affordable one-way fares based on user searches. Data last updated August 21, 2025.

Mon 9/226:10 amDCA - LIH

2 stops17h 11mDelta

Deal found 8/20

$239

Thu 9/256:25 amDCA - LIH

2 stops15h 11mUnited Airlines

Deal found 8/20

$276

Mon 9/86:30 amDCA - LIH

2 stops16h 48mDelta

Deal found 8/21

$312

Fri 9/266:10 amDCA - LIH

2 stops17h 11mDelta

Deal found 8/20

$327

Fri 9/261:00 pmDCA - LIH

2 stops28h 56mMultiple Airlines

Deal found 8/20

$332

Thu 9/256:00 pmDCA - LIH

3 stops25h 56mMultiple Airlines

Deal found 8/20

$361

Mon 9/227:29 amDCA - LIH

1 stop12h 58mAmerican Airlines

Deal found 8/21

$362

Mon 9/88:59 amDCA - LIH

1 stop32h 57mAlaska Airlines

Deal found 8/20

$372

Thu 9/255:30 pmDCA - LIH

1 stop24h 44mAmerican Airlines

Deal found 8/20

$385

Fri 9/268:59 amDCA - LIH

1 stop32h 57mAlaska Airlines

Deal found 8/20

$389

Mon 9/85:30 pmDCA - LIH

1 stop24h 44mAmerican Airlines

Deal found 8/21

$390

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Fri 10/31

7:59 am-7:05 pm

2 stops17h 06m

Lihue

Mon 11/10

10:45 pm-3:35 pm

1 stop11h 50m

$502

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Wed 11/26

9:59 am-1:03 pm

1 stop32h 04m

Lihue

Wed 12/3

2:53 pm-9:02 pm

1 stop25h 09m

$520

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Mon 9/15

6:10 am-5:21 pm

2 stops17h 11m

Lihue

Mon 9/22

9:40 pm-3:30 pm

1 stop11h 50m

$530

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Wed 10/15

6:59 pm-1:32 pm

2 stops24h 33m

Lihue

Wed 10/22

6:49 pm-8:29 pm

2 stops19h 40m

$532

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Mon 9/8

6:30 am-5:18 pm

2 stops16h 48m

Lihue

Mon 9/15

9:40 pm-3:30 pm

1 stop11h 50m

$545

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Mon 9/22

6:10 am-5:21 pm

2 stops17h 11m

$239

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Thu 9/25

6:25 am-3:36 pm

2 stops15h 11m

$276

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Mon 9/8

6:30 am-5:18 pm

2 stops16h 48m

$312

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Fri 9/26

6:10 am-5:21 pm

2 stops17h 11m

$327

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Fri 9/26

1:00 pm-11:56 am

2 stops28h 56m

$332

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

Showing 1-10 of 13 results

Best time to book a flight from Reagan-National to Kaua'i

Have a flexible travel schedule? Discover the best time to fly to Kaua'i from Reagan-National 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. Reagan-National Airport to Kaua'i

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Kaua'i (average of $440). Flying from Washington, D.C. Reagan-National 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.

Reviews of airlines servicing Kaua'i

Get a feel of what it's like to fly with Delta and American Airlines from Washington, D.C. Reagan-National Airport to Kaua'i by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,981 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,981 reviews

Delta

8.0

Very good

7,981 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,981 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

How long is the flight from Washington, D.C. Reagan-National Airport to Kaua'i?
For as low as $502, Delta can have you in Kaua'i from Washington, D.C. Reagan-National Airport in 17h 06m. The distance from Washington, D.C. Reagan-National Airport to Kaua'i is about 4878 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
Can I find deals for flights from Reagan-National to Kaua'i that include hotel bookings?
Yes. In addition to deals on Reagan-National to Kaua'i flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Reagan-National to Kaua'i?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Kaua'i.
Can I find deals for business class flights from Reagan-National to Kaua'i?
Yes. Cheapflights offers flight deals from Reagan-National 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. Reagan-National Airport to Kaua'i?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Kaua'i (average of $440). Flying from Washington, D.C. Reagan-National 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 Reagan-National to Kaua'i

Top 2 airlines flying from Reagan-National to Kaua'i

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$484	Average$732	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$489	Average$660	FlexibilityNo cancel fee	On-timeN/A

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$239+ Cheap flights from Reagan-National (DCA) 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.

Find cheap flights from Reagan-National to Kaua'i with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Reagan-National to Kaua'i

Keep the following information in mind while searching for Reagan-National to Kaua'i flight deals. Data was last updated August 21, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Reagan-National to Kaua'i

Cheapest flights from Reagan-National to Kaua'iExplore the most affordable flight options available from Reagan-National to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2025.

Explore the most affordable flight options available from Reagan-National to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Reagan-National to Kaua'i

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

Cheapflights Insights

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

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

Reviews of airlines servicing Kaua'i

Get a feel of what it's like to fly with Delta and American Airlines from Washington, D.C. Reagan-National Airport to Kaua'i by reading reviews from past customers. You can also see how each airline stacks up 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 Reagan-National 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. Reagan-National Airport to Kaua'i?

Can I find deals for flights from Reagan-National to Kaua'i that include hotel bookings?

How can I find direct flights from Reagan-National to Kaua'i?

Can I find deals for business class flights from Reagan-National to Kaua'i?

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

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

Top 2 airlines flying from Reagan-National to Kaua'i

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Cheapest flights from Reagan-National to Kaua'i
Explore the most affordable flight options available from Reagan-National to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2025.