HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ko Phi Phi

$515+ Cheap flights from Reagan-National (DCA) to Ko Phi Phi, Thailand

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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — HKT
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Reagan-National to Ko Phi Phi 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 Reagan-National to Ko Phi Phi

Keep the following information in mind while searching for Reagan-National to Ko Phi Phi flight deals. Data was last updated April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,051
(WhyPayMore)

One-way from

$515
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$1,298
Provider with most accurate pricing for Washington, D.C. (WAS)-Phuket City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Phuket City flights.
Search Deals
From Washington, D.C. Reagan-National to Ko Phi Phi
Search Deals
One-way flight from Washington, D.C. Reagan-National to Ko Phi Phi
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Reagan-National to Ko Phi Phi

Cheapest flights from Reagan-National to Ko Phi Phi
Explore the most affordable flight options available from Reagan-National to Ko Phi Phi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This WhyPayMore deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/266:59 pmDCA - HKT
2 stops28h 51mCathay Pacific
Sun 5/2511:50 amHKT - DCA
2 stops56h 39mCathay Pacific
Deal found 4/17$1,051
This FlightHub deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/179:00 amDCA - HKT
2 stops37h 05mSingapore Airlines
Mon 9/223:05 pmHKT - DCA
2 stops40h 54mSingapore Airlines
Deal found 4/17$1,194
This Cathay Pacific deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/196:35 pmDCA - HKT
2 stops35h 00mMultiple Airlines
Thu 11/2712:20 pmHKT - DCA
2 stops33h 09mMultiple Airlines
Deal found 4/17$1,229
This FlightHub deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/226:44 pmDCA - HKT
2 stops26h 06mQatar Airways
Sun 11/28:30 pmHKT - DCA
2 stops36h 00mQatar Airways
Deal found 4/17$1,340
This Expedia deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/257:15 amDCA - HKT
2 stops50h 25mKorean Air
Mon 1/511:20 pmHKT - DCA
2 stops30h 46mKorean Air
Deal found 4/17$1,802
This Delta deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/316:10 amDCA - HKT
2 stops28h 30mDelta
Mon 11/1011:20 pmHKT - DCA
2 stops24h 32mDelta
Deal found 4/17$1,847
This American Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/232:54 pmDCA - HKT
2 stops27h 56mAmerican Airlines
Sat 1/312:50 amHKT - DCA
2 stops30h 05mAmerican Airlines
Deal found 4/17$4,018

Cheapflights Fare Finder

Customize your flight search to find flights from Reagan-National to Ko Phi Phi 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, Cheapflights users made 2,558,603 searches. Data last updated April 17, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Ko Phi Phi that are best for you.

Fly from

Reagan-National

Fly to

Ko Phi Phi

Route

Depart

Return

Price

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Sat 4/26

6:59 pm-10:50 am

2 stops28h 51m

Phuket City

Sun 5/25

11:50 am-9:29 am

2 stops56h 39m

$1,051

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Tue 5/6

11:55 am-10:50 am

2 stops35h 55m

Phuket City

Mon 5/12

6:20 pm-5:32 pm

2 stops34h 12m

$1,256

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Tue 4/29

3:59 pm-7:50 am

2 stops28h 51m

Phuket City

Wed 5/7

9:20 am-8:00 pm

2 stops45h 40m

$1,344

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Sun 7/13

9:59 am-2:10 pm

3 stops41h 11m

Phuket City

Sun 7/27

9:55 am-9:42 pm

2 stops46h 47m

$1,808

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Tue 7/1

6:05 am-10:10 pm

2 stops29h 05m

Phuket City

Fri 7/11

11:25 pm-11:28 pm

2 stops35h 03m

$2,247

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Fri 5/9

7:59 am-10:10 pm

2 stops27h 11m

Phuket City

Sat 5/17

11:25 pm-6:07 pm

2 stops29h 42m

$2,802

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Tue 4/22

6:00 pm-10:50 am

3 stops53h 50m

$515

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Tue 4/22

11:54 am-10:50 am

2 stops35h 56m

$529

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Tue 4/22

12:30 pm-7:50 am

2 stops32h 20m

$815

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Sun 5/11

8:59 am-5:10 pm

3 stops45h 11m

$1,207

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 11 results
1
2

Best time to book a flight from Reagan-National to Ko Phi Phi

Have a flexible travel schedule? Discover the best time to fly to Ko Phi Phi 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 Ko Phi Phi

What is the cheapest time of day to fly from DCA to K33?

Find hourly flight availability from Reagan-National to Ko Phi Phi. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

When flying from Washington, D.C. Reagan-National Airport to Ko Phi Phi, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Ko Phi Phi by month

Plan your trip to Ko Phi Phi by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ko Phi Phi ranges from 1.2 - 16.1 inches per month. September is typically the wettest month, when rainfall can reach 16.1 in. January is typically the driest time to visit Ko Phi Phi when rainfall is around 1.2 in.

Temperature in Ko Phi Phi by month

Plan your trip to Ko Phi Phi by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ko Phi Phi, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).

Reviews of airlines servicing Ko Phi Phi

Get insights into the airlines that provide service to Ko Phi Phi. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ko Phi Phi. Reviews last updated April 17, 2025.
Singapore Airlines
8.1
Very good
1,288 reviews

Entertainment

8.0

Comfort

7.9

Crew

8.6

Overall

8.1

Food

7.7

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.
Singapore Airlines
8.1
Very good
1,288 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Entertainment

8.0

Comfort

7.9

Crew

8.6

Overall

8.1

Food

7.7

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.
Delta
8.0
Very good
7,916 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Entertainment

8.0

Comfort

7.9

Crew

8.6

Overall

8.1

Food

7.7

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.
Cathay Pacific
7.5
Good
849 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Entertainment

8.0

Comfort

7.9

Crew

8.6

Overall

8.1

Food

7.7

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.
Qatar Airways
7.4
Good
3,554 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Entertainment

8.0

Comfort

7.9

Crew

8.6

Overall

8.1

Food

7.7

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Ko Phi Phi. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Ko Phi Phi one-way?

    For one-way options, check prices for Cathay Pacific. According to our data, you can fly for as low as $529. Users have also found prices from $815 and $1,207 on Qatar Airways and Singapore Airlines, respectively.

  • Can I find deals for flights from Reagan-National to Ko Phi Phi that include hotel bookings?

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

  • How can I find direct flights from Reagan-National to Ko Phi Phi?

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

  • Can I find deals for business class flights from Reagan-National to Ko Phi Phi?

    Yes. Cheapflights offers flight deals from Reagan-National to Ko Phi Phi 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 Ko Phi Phi?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Ko Phi Phi (average of $1,104). Flying from Washington, D.C. Reagan-National Airport to Ko Phi Phi in December is currently the most expensive (average of $1,759). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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.