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Ko Phi Phi

$412+ Cheap flights from Dulles Intl (IAD) 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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — HKT
dic. 3 — dic. 101
mié. 12/3
mié. 12/10
1 adult, Economy
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Find flight deals from Dulles Intl to Ko Phi Phi

Cheapest flights from Dulles Intl to Ko Phi Phi
Explore the most affordable flight options available from Dulles Intl to Ko Phi Phi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 3, 2025.

This Booking.com deal was found by Cheapflights users on 11/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/29:15 pmIAD - HKT
2 stops36h 30mIndiGo
jue. 12/1111:05 amHKT - IAD
2 stops44h 15mIndiGo
Deal found 11/2$866
This IEagle deal was found by Cheapflights users on 11/3. 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.
mié. 12/310:40 amIAD - HKT
1 stop20h 15mQatar Airways
mié. 12/1010:30 pmHKT - IAD
2 stops29h 25mQatar Airways
Deal found 11/3$929
This Booking.com deal was found by Cheapflights users on 11/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/291:30 pmIAD - HKT
2 stops44h 15mIndiGo
sáb. 12/611:05 amHKT - IAD
2 stops44h 15mIndiGo
Deal found 11/1$944
This FlightHub deal was found by Cheapflights users on 11/3. 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.
mié. 12/310:40 amIAD - HKT
1 stop20h 15mQatar Airways
jue. 12/1111:20 pmHKT - IAD
2 stops52h 35mQatar Airways
Deal found 11/3$951
This oojo deal was found by Cheapflights users on 11/1. 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.
mié. 11/191:30 pmIAD - HKT
1 stop38h 20mTurkish Airlines
mar. 12/1610:25 pmHKT - IAD
1 stop25h 20mTurkish Airlines
Deal found 11/1$978
This Booking.com deal was found by Cheapflights users on 11/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/21:30 pmIAD - HKT
2 stops44h 15mMultiple Airlines
jue. 12/116:25 pmHKT - IAD
1 stop36h 05mMultiple Airlines
Deal found 11/2$983
This oojo deal was found by Cheapflights users on 11/2. 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.
mié. 11/191:30 pmIAD - HKT
1 stop38h 20mTurkish Airlines
jue. 11/2710:25 pmHKT - IAD
1 stop25h 20mTurkish Airlines
Deal found 11/2$1,001
This Booking.com deal was found by Cheapflights users on 11/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/291:30 pmIAD - HKT
2 stops44h 15mIndiGo
vie. 12/511:05 amHKT - IAD
2 stops44h 15mIndiGo
Deal found 11/3$1,016
This oojo deal was found by Cheapflights users on 11/2. 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.
vie. 11/141:30 pmIAD - HKT
1 stop38h 20mTurkish Airlines
vie. 11/2110:25 pmHKT - IAD
1 stop25h 20mTurkish Airlines
Deal found 11/2$1,017

Cheap flight deals from Dulles Intl to Ko Phi Phi

Keep the following information in mind while searching for Dulles Intl to Ko Phi Phi flight deals. Data was last updated noviembre 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$866
(Booking.com)

One-way from

$412
(Booking.com)

Popular in

December

Cheapest in

October

Average price

$1,203
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.
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From Washington, D.C. Dulles Intl to Ko Phi Phi
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Ko Phi Phi
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($217 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($77 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 noviembre 3, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Ko Phi Phi that are best for you.

Fly from

Dulles Intl

Fly to

Ko Phi Phi

Route

Depart

Return

Price

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

jue. 1/22

2:35 pm-5:55 pm

1 stop39h 20m

Phuket City

jue. 1/29

3:10 am-9:05 am

1 stop41h 55m

$1,024

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

dom. 3/8

3:35 pm-6:15 am

1 stop27h 40m

Phuket City

mar. 3/10

12:25 am-10:05 am

1 stop44h 40m

$1,042

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

mar. 1/13

8:05 pm-5:50 am

1 stop21h 45m

Phuket City

mar. 1/20

8:30 pm-3:55 pm

1 stop31h 25m

$1,066

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

lun. 4/6

5:10 pm-10:50 am

2 stops30h 40m

Phuket City

vie. 4/17

6:20 pm-4:07 pm

2 stops56h 47m

$1,072

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

sáb. 3/21

7:59 pm-10:10 pm

2 stops63h 11m

Phuket City

mié. 4/1

11:25 pm-2:51 pm

2 stops26h 26m

$1,098

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

dom. 4/19

3:35 pm-11:40 pm

1 stop21h 05m

Phuket City

jue. 4/23

2:25 am-9:45 am

1 stop42h 20m

$1,139

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

jue. 4/2

7:00 am-10:10 pm

2 stops28h 10m

Phuket City

sáb. 4/11

11:25 pm-6:42 pm

2 stops30h 17m

$1,162

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

dom. 4/19

7:00 am-10:10 pm

2 stops28h 10m

Phuket City

vie. 4/24

11:25 pm-1:59 pm

2 stops25h 34m

$1,183

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

dom. 3/8

12:50 pm-10:10 pm

1 stop46h 20m

Phuket City

mié. 3/11

11:40 pm-11:02 pm

2 stops34h 22m

$1,183

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

dom. 4/19

7:50 pm-10:10 pm

2 stops39h 20m

Phuket City

vie. 4/24

11:25 pm-1:59 pm

2 stops25h 34m

$1,187

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 18 results
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Best time to book a flight from Dulles Intl to Ko Phi Phi

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

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Ko Phi Phi?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Ko Phi Phi. Price data was last updated on October 31, 2025.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Ko Phi Phi is 10 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Ko Phi Phi?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Ko Phi Phi (average of $956). Flying from Washington, D.C. Dulles Intl Airport to Ko Phi Phi in December is currently the most expensive (average of $1,131). 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 K33?

Find hourly flight availability from Dulles Intl 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 noviembre 3, 2025.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Ko Phi Phi in the evening. Doing so could potentially save you 22% on the flight price compared to flying in the morning, which is usually more expensive.

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 noviembre 3, 2025.
See what other customers who have flown with Emirates, Qatar Airways, and Etihad Airways from Washington, D.C. Dulles Intl Airport to Ko Phi Phi have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,400 reviews

Overall

8.1

Boarding

8.1

Entertainment

8.2

Crew

8.3

Food

7.9

Comfort

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.1
Very good
3,400 reviews
Emirates
8.1
Very good
3,400 reviews

Overall

8.1

Boarding

8.1

Entertainment

8.2

Crew

8.3

Food

7.9

Comfort

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Qatar Airways
7.4
Good
3,659 reviews
Emirates
8.1
Very good
3,400 reviews

Overall

8.1

Boarding

8.1

Entertainment

8.2

Crew

8.3

Food

7.9

Comfort

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Etihad Airways
7.4
Good
1,284 reviews
Emirates
8.1
Very good
3,400 reviews

Overall

8.1

Boarding

8.1

Entertainment

8.2

Crew

8.3

Food

7.9

Comfort

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Turkish Airlines
7.3
Good
4,038 reviews
Emirates
8.1
Very good
3,400 reviews

Overall

8.1

Boarding

8.1

Entertainment

8.2

Crew

8.3

Food

7.9

Comfort

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Air India
5.5
Fair
2,940 reviews
Emirates
8.1
Very good
3,400 reviews

Overall

8.1

Boarding

8.1

Entertainment

8.2

Crew

8.3

Food

7.9

Comfort

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl Airport to Ko Phi Phi?

    There are many flights that can get you from Washington, D.C. Dulles Intl Airport to Ko Phi Phi in 21h 45m. Fly via Etihad Airways, Qatar Airways, or Cathay Pacific to get the fastest option. The distance between Washington, D.C. Dulles Intl Airport and Ko Phi Phi is about 9167 mi. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with IndiGo, which is currently one of the cheapest options available, starting at $412. Etihad Airways flights start at $533 while deals on Qatar Airways start at $594 one-way.

  • Can I find deals for flights from Dulles Intl to Ko Phi Phi that include hotel bookings?

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

  • How can I find direct flights from Dulles Intl 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 Dulles Intl to Ko Phi Phi.

  • Can I find deals for business class flights from Dulles Intl to Ko Phi Phi?

    Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to Ko Phi Phi?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Ko Phi Phi (average of $956). Flying from Washington, D.C. Dulles Intl Airport to Ko Phi Phi in December is currently the most expensive (average of $1,131). 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

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Top 5 airlines flying from Dulles Intl to Ko Phi Phi

Discover the top 5 airlines that operate flights from Dulles Intl to Ko Phi Phi. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated noviembre 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$928Average$1,041FlexibilityNo cancel feeOn-time77%
Air IndiaCheapest$955Average$1,081FlexibilityNo cancel feeOn-timeN/A
Qatar AirwaysCheapest$993Average$1,296FlexibilityNo cancel feeOn-time68%
Etihad AirwaysCheapest$1,005Average$1,146FlexibilityNo cancel feeOn-time75%
EmiratesCheapest$1,166Average$1,290FlexibilityNo cancel feeOn-time75%

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