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Ko Phi Phi

$550+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — HKT
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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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 August 18, 2025.

Round-trip from

$1,012
(Ovago)

One-way from

$550
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$1,315
From Washington, D.C. Reagan-National to Ko Phi Phi
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One-way flight from Washington, D.C. Reagan-National to Ko Phi Phi
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Highest demand for flights based on searches. 8% potential increase in price ($116 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($52 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 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 August 18, 2025.

This oojo deal was found by Cheapflights users on 8/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/199:48 amDCA - HKT
2 stops37h 32mCathay Pacific
Wed 11/2612:20 pmHKT - DCA
2 stops42h 36mCathay Pacific
Deal found 8/18$1,012
This Ovago deal was found by Cheapflights users on 8/16. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1911:55 amDCA - HKT
2 stops41h 40mCathay Pacific
Tue 12/1612:20 pmHKT - DCA
2 stops42h 34mCathay Pacific
Deal found 8/16$1,017
This Cathay Pacific deal was found by Cheapflights users on 8/17. 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 9/175:30 pmDCA - HKT
2 stops30h 20mMultiple Airlines
Mon 9/226:20 pmHKT - DCA
2 stops34h 39mMultiple Airlines
Deal found 8/17$1,022
This oojo deal was found by Cheapflights users on 8/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/219:59 amDCA - HKT
2 stops37h 51mCathay Pacific
Thu 10/3012:20 pmHKT - DCA
2 stops44h 55mCathay Pacific
Deal found 8/18$1,055
This Cathay Pacific deal was found by Cheapflights users on 8/15. 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.
Mon 9/85:20 pmDCA - HKT
2 stops30h 30mMultiple Airlines
Fri 9/126:20 pmHKT - DCA
2 stops33h 02mMultiple Airlines
Deal found 8/15$1,065
This Korean Air deal was found by Cheapflights users on 8/16. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/318:00 amDCA - HKT
2 stops27h 10mKorean Air
Sun 9/711:25 pmHKT - DCA
2 stops26h 42mKorean Air
Deal found 8/16$1,074
This Ovago deal was found by Cheapflights users on 8/17. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1911:55 amDCA - HKT
2 stops35h 25mCathay Pacific
Thu 11/2712:20 pmHKT - DCA
2 stops42h 36mCathay Pacific
Deal found 8/17$1,145
This oojo deal was found by Cheapflights users on 8/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/251:33 pmDCA - HKT
2 stops34h 17mCathay Pacific
Sat 10/411:50 amHKT - DCA
2 stops46h 17mCathay Pacific
Deal found 8/17$1,205
This Ovago deal was found by Cheapflights users on 8/16. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2412:25 pmDCA - HKT
2 stops41h 55mCathay Pacific
Sat 10/411:50 amHKT - DCA
2 stops46h 17mCathay Pacific
Deal found 8/16$1,225
This IEagle deal was found by Cheapflights users on 8/16. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/167:35 pmDCA - HKT
2 stops28h 15mCathay Pacific
Sun 9/212:45 pmHKT - DCA
3 stops40h 13mCathay Pacific
Deal found 8/16$1,244

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 August 18, 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

Tue 9/16

7:35 pm-10:50 am

2 stops28h 15m

Phuket City

Sun 9/21

11:50 am-7:58 pm

2 stops43h 08m

$1,012

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Wed 9/17

5:30 pm-10:50 am

2 stops30h 20m

Phuket City

Mon 9/22

6:20 pm-5:59 pm

2 stops34h 39m

$1,022

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Mon 8/25

6:59 pm-10:50 am

2 stops28h 51m

Phuket City

Wed 9/3

6:20 pm-4:22 pm

2 stops33h 02m

$1,022

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Tue 10/21

9:59 am-10:50 am

2 stops37h 51m

Phuket City

Thu 10/30

12:20 pm-10:15 pm

2 stops44h 55m

$1,055

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Mon 9/8

5:20 pm-10:50 am

2 stops30h 30m

Phuket City

Fri 9/12

6:20 pm-4:22 pm

2 stops33h 02m

$1,065

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Sun 8/31

8:00 am-10:10 pm

2 stops27h 10m

Phuket City

Sun 9/7

11:25 pm-3:07 pm

2 stops26h 42m

$1,074

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Fri 10/31

9:59 am-2:05 pm

2 stops41h 06m

Phuket City

Fri 11/7

6:00 pm-9:59 pm

2 stops39h 59m

$1,074

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Thu 9/25

1:33 pm-10:50 am

2 stops34h 17m

Phuket City

Sat 10/4

11:50 am-11:07 pm

2 stops46h 17m

$1,205

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Mon 9/15

1:00 pm-10:50 am

3 stops34h 50m

$550

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Mon 9/15

5:30 pm-5:20 pm

2 stops36h 50m

$569

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 15 results
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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 August 18, 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.

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.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Ko Phi Phi?

    Departing from Washington, D.C. Reagan-National Airport to Ko Phi Phi will take you 28h 15m. Airlines will cover a distance of 9172 mi.

  • 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 $1,089). Flying from Washington, D.C. Reagan-National Airport to Ko Phi Phi in December is currently the most expensive (average of $1,743). 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

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