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Ko Phi Phi

$386+ 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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — HKT
May 1 — May 81
Fri 5/1
Fri 5/8
1 adult, Economy
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Cheap 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 1, 2026.

This CrystalTravel deal was found by Cheapflights users on 3/29. 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.
Sun 5/103:10 pm
IAD
-
HKT
1 stop29h 25m
Etihad Airways
Fri 5/153:20 pm
HKT
-
IAD
1 stop29h 25m
Etihad Airways
Deal found 3/29$695
This Gotogate deal was found by Cheapflights users on 3/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/63:10 pm
IAD
-
HKT
1 stop34h 05m
Etihad Airways
Wed 5/209:20 pm
HKT
-
IAD
1 stop23h 25m
Etihad Airways
Deal found 3/30$722
This oojo deal was found by Cheapflights users on 3/31. 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.
Mon 4/202:05 pm
IAD
-
HKT
1 stop30h 45m
Etihad Airways
Mon 4/278:55 am
HKT
-
IAD
1 stop36h 30m
Etihad Airways
Deal found 3/31$725
This Justfly.com deal was found by Cheapflights users on 3/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/53:10 pm
IAD
-
HKT
1 stop34h 05m
Etihad Airways
Mon 5/189:20 pm
HKT
-
IAD
1 stop23h 25m
Etihad Airways
Deal found 3/29$729
This CrystalTravel deal was found by Cheapflights users on 3/28. 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.
Sat 5/93:10 pm
IAD
-
HKT
1 stop21h 45m
Etihad Airways
Fri 5/159:20 pm
HKT
-
IAD
1 stop23h 25m
Etihad Airways
Deal found 3/28$730
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/282:05 pm
IAD
-
HKT
1 stop30h 45m
Etihad Airways
Tue 5/59:20 pm
HKT
-
IAD
1 stop23h 25m
Etihad Airways
Deal found 3/29$731
This Flightnetwork deal was found by Cheapflights users on 3/29. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/133:10 pm
IAD
-
HKT
1 stop29h 25m
Etihad Airways
Wed 5/203:20 pm
HKT
-
IAD
1 stop29h 25m
Etihad Airways
Deal found 3/29$738
This CrystalTravel deal was found by Cheapflights users on 3/30. 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.
Thu 4/162:05 pm
IAD
-
HKT
1 stop30h 45m
Etihad Airways
Mon 4/279:05 pm
HKT
-
IAD
1 stop24h 20m
Etihad Airways
Deal found 3/30$740
This KAYAK deal was found by Cheapflights users on 3/28. 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.
Mon 5/43:10 pm
IAD
-
HKT
1 stop21h 45m
Etihad Airways
Fri 5/153:20 pm
HKT
-
IAD
1 stop29h 25m
Etihad Airways
Deal found 3/28$750
This oojo deal was found by Cheapflights users on 3/30. 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.
Mon 4/62:05 pm
IAD
-
HKT
1 stop41h 25m
Etihad Airways
Mon 4/139:25 am
HKT
-
IAD
1 stop36h 00m
Etihad Airways
Deal found 3/30$751
This oojo deal was found by Cheapflights users on 3/28. 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 5/63:10 pm
IAD
-
HKT
1 stop40h 10m
Etihad Airways
Sat 5/163:20 am
HKT
-
IAD
1 stop41h 25m
Etihad Airways
Deal found 3/28$765
This FlightHub deal was found by Cheapflights users on 3/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/53:10 pm
IAD
-
HKT
1 stop34h 05m
Etihad Airways
Sun 5/179:20 pm
HKT
-
IAD
1 stop23h 25m
Etihad Airways
Deal found 3/28$769

Find 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 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$695
(CrystalTravel)

One-way from

$386
(SmartFares)

Popular in

December

Cheapest in

October

Average price

$1,209
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. 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. 15% potential increase in price ($245 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($84 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 April 1, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Mon 4/20

8:20 pm-7:45 am

1 stop24h 25m

Phuket City

Fri 4/24

9:20 am-4:05 pm

1 stop41h 45m

$1,179

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Tue 4/14

10:55 am-8:00 pm

1 stop22h 05m

Phuket City

Sat 4/25

2:45 pm-8:40 am

2 stops52h 55m

$1,303

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Sat 7/11

1:50 am-9:15 pm

2 stops32h 25m

Phuket City

Sun 7/19

9:55 pm-10:30 pm

2 stops35h 35m

$1,339

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Fri 7/10

1:50 am-6:30 pm

2 stops29h 40m

Phuket City

Sun 7/19

9:55 pm-10:30 pm

2 stops35h 35m

$1,363
Quickest round-trip

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Mon 6/8

3:10 pm-11:40 pm

1 stop21h 30m

Phuket City

Tue 6/16

9:25 am-9:45 am

1 stop35h 20m

$1,621

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Tue 6/2

7:00 am-10:10 pm

2 stops28h 10m

Phuket City

Sat 6/13

11:25 pm-12:25 am

2 stops36h 00m

$1,659

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Sat 6/6

8:05 am-10:10 pm

2 stops27h 05m

Phuket City

Mon 6/15

11:25 pm-12:25 am

2 stops36h 00m

$1,659
Cheapest one-way
Quickest one-way

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Mon 5/18

3:10 pm-11:55 pm

1 stop21h 45m

$440

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Wed 5/20

3:10 pm-6:20 pm

1 stop40h 10m

$450

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Thu 4/9

7:00 am-9:15 pm

2 stops51h 15m

$576

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

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

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Ko Phi Phi (average of $953). Flying from Washington, D.C. Dulles Intl Airport to Ko Phi Phi in June is currently the most expensive (average of $1,196). 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.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Ko Phi Phi?

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 1, 2026.
See what other customers who have flown with Emirates,Delta, andQatar 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
3,551 reviews

Crew

8.3

Food

7.9

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.
Emirates
8.1
Very good
3,551 reviews
Emirates
8.1
Very good
3,551 reviews

Crew

8.3

Food

7.9

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.
Delta
7.9
Good
8,366 reviews
Emirates
8.1
Very good
3,551 reviews

Crew

8.3

Food

7.9

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.
Qatar Airways
7.4
Good
3,732 reviews
Emirates
8.1
Very good
3,551 reviews

Crew

8.3

Food

7.9

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.
Etihad Airways
7.3
Good
1,432 reviews
Emirates
8.1
Very good
3,551 reviews

Crew

8.3

Food

7.9

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.
JetBlue
7.2
Good
2,909 reviews
Emirates
8.1
Very good
3,551 reviews

Crew

8.3

Food

7.9

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.

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 22h 05m. Fly via Qatar Airways, Emirates, or EVA Air 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.

  • 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, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Ko Phi Phi (average of $953). Flying from Washington, D.C. Dulles Intl Airport to Ko Phi Phi in June is currently the most expensive (average of $1,196). 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 7 airlines flying from Dulles Intl to Ko Phi Phi

Discover the top 7 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 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$664Average$1,143FlexibilityNo cancel feeOn-timeN/A
Air IndiaCheapest$955Average$974FlexibilityNo cancel feeOn-timeN/A
Qatar AirwaysCheapest$993Average$1,345FlexibilityNo cancel feeOn-time68%
Etihad AirwaysCheapest$1,028Average$1,225FlexibilityNo cancel feeOn-time75%
EmiratesCheapest$1,086Average$1,240FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$1,261Average$1,854FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$1,571Average$2,218FlexibilityNo cancel feeOn-time62%

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