Ko Phi Phi

$706+ 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — HKT
May 3 — May 101
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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 April 28, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,043
(Cathay Pacific)

One-way from

$706
(FlightHub)

Popular in

July

Cheapest in

October

Average price

$1,278
Provider with most accurate pricing for Washington, D.C. (WAS)-Phuket City flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Phuket City flights.
From Washington, D.C. Dulles Intl to Ko Phi Phi
One-way flight from Washington, D.C. Dulles Intl to Ko Phi Phi
Highest demand for flights based on searches. 17% potential increase in price ($297 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($50 potential savings vs. average RT price).
Average for round-trip flights in April 2025

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 April 28, 2025.

This CrystalTravel deal was found by Cheapflights users on 4/28. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/199:25 pmIAD - HKT
1 stop30h 20mTurkish Airlines
Thu 11/2710:25 pmHKT - IAD
1 stop33h 05mTurkish Airlines
Deal found 4/28$990
This oojo deal was found by Cheapflights users on 4/28. 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 10/2210:05 pmIAD - HKT
1 stop38h 30mEtihad Airways
Sat 11/12:50 amHKT - IAD
1 stop25h 15mEtihad Airways
Deal found 4/28$1,012
This Cathay Pacific deal was found by Cheapflights users on 4/28. 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 4/307:00 amIAD - HKT
2 stops47h 20mMultiple Airlines
Wed 5/146:20 pmHKT - IAD
2 stops32h 54mMultiple Airlines
Deal found 4/28$1,043
This oojo deal was found by Cheapflights users on 4/28. 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 9/179:00 pmIAD - HKT
1 stop23h 50mQatar Airways
Mon 9/227:10 pmHKT - IAD
2 stops31h 30mQatar Airways
Deal found 4/28$1,075
This Booking.com deal was found by Cheapflights users on 4/28. 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.
Sat 8/301:30 pmIAD - HKT
2 stops39h 15mIndiGo
Sat 9/131:30 pmHKT - IAD
2 stops41h 15mIndiGo
Deal found 4/28$1,141
This Gurufare deal was found by Cheapflights users on 4/28. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2811:00 amIAD - HKT
1 stop21h 30mAir India
Mon 6/99:25 amHKT - IAD
1 stop33h 15mAir India
Deal found 4/28$1,149
This oojo deal was found by Cheapflights users on 4/28. 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.
Sun 8/3110:55 amIAD - HKT
1 stop22h 05mEmirates
Wed 9/37:55 pmHKT - IAD
1 stop23h 45mEmirates
Deal found 4/28$1,240
This JetBlue deal was found by Cheapflights users on 4/27. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/198:05 pmIAD - HKT
1 stop22h 45mJetBlue
Sat 11/2912:50 amHKT - IAD
1 stop27h 05mJetBlue
Deal found 4/27$1,345
This oojo deal was found by Cheapflights users on 4/28. 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 7/3111:00 amIAD - HKT
2 stops35h 45mMalaysia Airlines
Thu 8/72:05 pmHKT - IAD
2 stops29h 35mMalaysia Airlines
Deal found 4/28$1,466
This Booking.com deal was found by Cheapflights users on 4/28. 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.
Mon 12/16:10 pmIAD - HKT
2 stops31h 35mSAUDIA
Wed 12/313:20 pmHKT - IAD
2 stops35h 25mSAUDIA
Deal found 4/28$1,638
This KAYAK deal was found by Cheapflights users on 4/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/137:59 pmIAD - HKT
2 stops50h 06mSingapore Airlines
Sun 7/273:05 pmHKT - IAD
2 stops36h 20mSingapore Airlines
Deal found 4/28$1,670
This Delta deal was found by Cheapflights users on 4/27. 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.
Thu 12/2511:50 amIAD - HKT
1 stop45h 50mDelta
Mon 1/511:20 pmHKT - IAD
2 stops29h 16mDelta
Deal found 4/27$1,942

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 April 28, 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

Tue 5/6

7:00 am-10:50 am

2 stops40h 50m

Phuket City

Tue 5/13

11:50 am-5:22 pm

2 stops40h 32m

$1,043

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Fri 5/16

10:05 pm-7:40 am

1 stop22h 35m

Phuket City

Sun 6/1

9:10 am-4:10 pm

1 stop42h 00m

$1,112

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Tue 5/6

9:00 pm-7:50 am

1 stop23h 50m

Phuket City

Tue 5/13

12:55 pm-8:40 am

2 stops30h 45m

$1,129

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Wed 5/28

11:00 am-7:30 pm

1 stop21h 30m

Phuket City

Mon 6/9

9:25 am-7:40 am

1 stop33h 15m

$1,149

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Mon 7/14

1:30 pm-3:45 pm

2 stops39h 15m

Phuket City

Mon 7/21

1:30 pm-7:45 pm

2 stops41h 15m

$1,200

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Wed 6/18

1:30 pm-3:20 pm

1 stop38h 50m

Phuket City

Fri 6/27

10:15 pm-11:45 am

1 stop24h 30m

$1,283

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Mon 7/14

10:55 am-8:00 pm

1 stop22h 05m

Phuket City

Mon 7/21

5:30 pm-8:40 am

2 stops50h 10m

$1,433

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Fri 7/25

9:00 pm-9:45 am

2 stops49h 45m

Phuket City

Fri 8/1

2:05 pm-8:40 am

2 stops29h 35m

$1,522

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Sun 7/13

7:59 pm-9:05 am

2 stops50h 06m

Phuket City

Sun 7/27

3:05 pm-4:25 pm

2 stops36h 20m

$1,670

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Wed 7/2

12:13 pm-10:00 pm

2 stops46h 47m

Phuket City

Mon 7/14

12:20 am-7:37 pm

2 stops30h 17m

$3,470

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

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 April 25, 2025.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Ko Phi Phi is 49 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, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Ko Phi Phi (average of $1,104). Flying from Washington, D.C. Dulles Intl 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.

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 April 28, 2025.

When flying from Washington, D.C. Dulles Intl 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 28, 2025.
To help decide which airline to fly from Washington, D.C. to Ko Phi Phi, see what other customers have to say about Singapore Airlines, Emirates and KLM. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.1

Entertainment

8.0

Food

7.7

Crew

8.6

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Overall

8.1

Entertainment

8.0

Food

7.7

Crew

8.6

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Overall

8.1

Entertainment

8.0

Food

7.7

Crew

8.6

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Overall

8.1

Entertainment

8.0

Food

7.7

Crew

8.6

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Overall

8.1

Entertainment

8.0

Food

7.7

Crew

8.6

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Overall

8.1

Entertainment

8.0

Food

7.7

Crew

8.6

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

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.
  • 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 Air India, which is currently one of the cheapest options available, starting at $706. IndiGo flights start at $777 while deals on Etihad Airways start at $912 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, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Ko Phi Phi (average of $1,104). Flying from Washington, D.C. Dulles Intl 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

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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 April 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$954Average$1,140FlexibilityNo cancel feeOn-time77%
Etihad AirwaysCheapest$993Average$1,133FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$1,080Average$1,441FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,134Average$1,352FlexibilityNo cancel feeOn-time75%
Alaska AirlinesCheapest$1,191Average$1,194FlexibilityNo cancel feeOn-time75%

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