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Ko Phi Phi

$431+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — HKT
Aug 25 — Sep 11
Tue 8/25
Tue 9/1
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 July 26, 2026.

This Gotogate deal was found by Cheapflights users on 7/24. 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.
Tue 10/203:10 pm
IAD
-
HKT
1 stop28h 30m
Etihad Airways
Sun 11/12:40 am
HKT
-
IAD
1 stop42h 25m
Etihad Airways
Deal found 7/24$910
This Gotogate deal was found by Cheapflights users on 7/24. 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.
Sun 9/133:10 pm
IAD
-
HKT
1 stop28h 30m
Etihad Airways
Tue 9/223:20 pm
HKT
-
IAD
1 stop29h 25m
Etihad Airways
Deal found 7/24$911
This Gotogate deal was found by Cheapflights users on 7/23. 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.
Thu 9/33:10 pm
IAD
-
HKT
1 stop40h 10m
Etihad Airways
Mon 9/149:20 pm
HKT
-
IAD
1 stop23h 25m
Etihad Airways
Deal found 7/23$913
This oojo deal was found by Cheapflights users on 7/25. 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 10/203:10 pm
IAD
-
HKT
1 stop21h 40m
Etihad Airways
Fri 10/309:05 am
HKT
-
IAD
1 stop36h 00m
Etihad Airways
Deal found 7/25$914
This oojo deal was found by Cheapflights users on 7/22. 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 10/209:00 pm
IAD
-
HKT
1 stop23h 45m
Qatar Airways
Fri 10/3011:55 pm
HKT
-
IAD
1 stop28h 00m
Qatar Airways
Deal found 7/22$927
This oojo deal was found by Cheapflights users on 7/22. 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 8/239:00 pm
IAD
-
HKT
1 stop23h 45m
Qatar Airways
Fri 9/119:20 am
HKT
-
IAD
1 stop34h 25m
Qatar Airways
Deal found 7/22$930
This Etihad Airways deal was found by Cheapflights users on 7/25. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/153:10 pm
IAD
-
HKT
1 stop28h 30m
Etihad Airways
Wed 9/303:20 pm
HKT
-
IAD
1 stop29h 25m
Etihad Airways
Deal found 7/25$939
This FlightHub deal was found by Cheapflights users on 7/21. 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.
Mon 8/249:00 pm
IAD
-
HKT
1 stop23h 45m
Qatar Airways
Fri 9/118:30 pm
HKT
-
IAD
1 stop30h 10m
Qatar Airways
Deal found 7/21$941
This Justfly.com deal was found by Cheapflights users on 7/23. 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.
Mon 9/289:00 pm
IAD
-
HKT
1 stop23h 45m
JetBlue
Mon 10/59:20 am
HKT
-
IAD
1 stop34h 25m
JetBlue
Deal found 7/23$943
This deal was found by Cheapflights users on 7/23. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/283:10 pm
IAD
-
HKT
1 stop21h 40m
Etihad Airways
Mon 10/59:20 pm
HKT
-
IAD
1 stop23h 25m
Etihad Airways
Deal found 7/23$956

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 July 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$910
(Gotogate)

One-way from

$431
(eDestinos)

Popular in

December

Cheapest in

March

Average price

$1,921
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. 17% potential increase in price ($307 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($80 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 26, 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

Sat 10/24

3:10 pm-11:50 pm

1 stop21h 40m

Phuket City

Sat 10/31

2:40 am-10:05 am

1 stop42h 25m

$999
Quickest round-trip

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Tue 9/15

9:00 pm-7:45 am

1 stop23h 45m

Phuket City

Wed 9/30

9:55 pm-3:40 pm

2 stops28h 45m

$1,055

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Tue 8/18

9:00 pm-7:45 am

1 stop23h 45m

Phuket City

Fri 8/28

9:20 am-3:40 pm

1 stop41h 20m

$1,121

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Sun 9/20

9:00 pm-7:45 am

1 stop23h 45m

Phuket City

Thu 9/24

8:30 pm-3:40 pm

1 stop30h 10m

$1,139

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Tue 9/8

10:55 am-6:30 pm

2 stops44h 35m

Phuket City

Tue 9/15

7:55 pm-8:40 am

1 stop23h 45m

$1,300

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Mon 9/14

10:05 pm-2:05 pm

3 stops29h 00m

Phuket City

Tue 9/29

7:35 am-4:45 pm

2 stops44h 10m

$1,325
Cheapest one-way

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Mon 8/31

3:10 pm-6:20 pm

1 stop40h 10m

$431
Quickest one-way

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Sat 9/5

3:10 pm-11:50 pm

1 stop21h 40m

$470

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Tue 9/1

3:10 pm-11:50 pm

1 stop21h 40m

$483

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Thu 9/3

3:10 pm-6:40 am

1 stop28h 30m

$483

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Showing 1-10 of 15 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

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

Airfare is below average for this route at the moment.
Washington, D.C. Dulles Intl Airport to Ko Phi Phi flights typically cost between $1,551 and $1,846 in October.
The cheapest round-trip price found within the last 5 days was $910 on Etihad Airways (Oct 20-Nov 1).

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 July 26, 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
3,636 reviews

Food

7.9

Crew

8.4

Overall

8.1

Boarding

8.1

Entertainment

8.2

Comfort

8.0

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
3,636 reviews
Emirates
8.1
Very good
3,636 reviews

Food

7.9

Crew

8.4

Overall

8.1

Boarding

8.1

Entertainment

8.2

Comfort

8.0

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
7.8
Good
8,487 reviews
Emirates
8.1
Very good
3,636 reviews

Food

7.9

Crew

8.4

Overall

8.1

Boarding

8.1

Entertainment

8.2

Comfort

8.0

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
7.3
Good
3,747 reviews
Emirates
8.1
Very good
3,636 reviews

Food

7.9

Crew

8.4

Overall

8.1

Boarding

8.1

Entertainment

8.2

Comfort

8.0

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
1,486 reviews
Emirates
8.1
Very good
3,636 reviews

Food

7.9

Crew

8.4

Overall

8.1

Boarding

8.1

Entertainment

8.2

Comfort

8.0

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
7.1
Good
3,025 reviews
Emirates
8.1
Very good
3,636 reviews

Food

7.9

Crew

8.4

Overall

8.1

Boarding

8.1

Entertainment

8.2

Comfort

8.0

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 21h 40m. Fly via Etihad Airways, Qatar Airways, or Alaska Airlines 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.

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.

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 July 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$993Average$1,337FlexibilityNo cancel feeOn-time68%
Etihad AirwaysCheapest$996Average$1,445FlexibilityNo cancel feeOn-time75%
EmiratesCheapest$1,137Average$1,265FlexibilityNo cancel feeOn-time75%
DeltaCheapest$1,137Average$1,143FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$1,675Average$2,218FlexibilityNo cancel feeOn-time62%

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