Cheap flights from Washington, D.C. (WAS) to Koh Samui (USM)

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How to find the cheapest flight from
Washington, D.C. (WAS) to Koh Samui (USM)

All the information you need to plan the best WAS to USM flight in 2022: compare Washington, D.C. to Koh Samui flight prices with the expected peak season, weather and rainfall in Koh Samui.
WAS - USM
Price
$869 - $1,620
USM
Temperature
80.6 - 84.2 °F
USM
Rainfall
2.3 - 19.3 inches

Popular in

August

High demand for flights, 28% potential price rise

Cheapest in

January

Best time to find cheap flights, 26% potential price drop

Average price

$1,010

Average for round-trip flights in July 2022

Round-trip from

$869

From Washington, D.C. (WAS) to Ko Samui

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Washington, D.C. to Koh Samui?

Flights from Washington, D.C. to Koh Samui are found to be more expensive on Saturday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Koh Samui.

When is the cheapest time to fly from Washington, D.C. to Koh Samui (WAS - USM)?

One of the essential ways to save on airfare from Washington, D.C. to Koh Samui is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 22% on airfare.

Cheap flights from Washington, D.C. to Koh Samui in July, August 2022

The best prices found for WAS to USM flights for July, August
13 Aug - 20 Aug
$2,288pp
IAD
Washington, D.C. Dulles Intl
Qatar Airways
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Qatar Airways
   
2 STOPS
IAD
Washington, D.C. Dulles Intl
29 Jul - 18 Aug
$2,456pp
IAD
Washington, D.C. Dulles Intl
Multiple Airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
   
2 STOPS
IAD
Washington, D.C. Dulles Intl
13 Aug - 20 Aug
$2,467pp
IAD
Washington, D.C. Dulles Intl
Multiple Airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
     
3 STOPS
IAD
Washington, D.C. Dulles Intl

Washington, D.C. to Koh Samui 2022 flight deals

Cheap flights to Koh Samui from Washington, D.C. found for this year
16 Nov - 23 Nov
$1,489pp
IAD
Washington, D.C. Dulles Intl
Multiple Airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
   
2 STOPS
IAD
Washington, D.C. Dulles Intl
16 Nov - 23 Nov
$1,889pp
IAD
Washington, D.C. Dulles Intl
Multiple Airlines
     
3 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
   
2 STOPS
IAD
Washington, D.C. Dulles Intl
21 Dec - 28 Dec
$2,185pp
IAD
Washington, D.C. Dulles Intl
Multiple Airlines
     
3 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
     
3 STOPS
IAD
Washington, D.C. Dulles Intl

One-way flights to Ko Samui from Washington, D.C.

The cheapest one-way flights from Washington, D.C. to Koh Samui
4:40 pm - 6:25 am
Qatar Airways
2 Stops
50h 45m
IAD - USM
Qatar Airways
$1,295
oojo
5:00 pm - 6:00 am
Multiple Airlines
2 Stops
26h 00m
BWI - USM
Multiple Airlines
$3,046
Kiwi.com
7:00 am - 6:00 am
Multiple Airlines
3 Stops
36h 00m
IAD - USM
Multiple Airlines
$1,159
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Washington, D.C.</span> to <span class="emphasized">Koh Samui</span> flights.

Flight FAQs

From Washington, D.C. to Koh Samui

What airport do you fly into for flights to Koh Samui from Washington, D.C.?

For a flight from Washington, D.C. to Koh Samui, you will be flying into Ko Samui. Ko Samui (USM) is just 2.1 mi from the center of the city. Ko Samui is the only Koh Samui airport and it handles 0 inbound flights from Washington, D.C. per day. 1 airline has flights to Ko Samui from Washington, D.C. on a regular basis.

Which airlines flying from Washington, D.C. to Ko Samui have flexible changes due to COVID-19?

Qatar Airways is one of the carriers that may have flexible change policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Washington, D.C. to Koh Samui for under $1,500 on Cheapflights?

Yes, there are multiple flights from Washington, D.C. to Koh Samui for under $1,500. The cheapest flight booked recently is on Emirates for just $1,489, but on average you can expect to pay $3,541.

What are the cheapest airlines flying from Washington, D.C. to Koh Samui round-trip?

According to our current data, Emirates ($1,489), Qatar Airways ($2,288), and Etihad Airways ($11,008) offers the cheapest pricing from Washington, D.C. to Koh Samui.

What are the most popular routes from Washington, D.C. to Koh Samui?

The most popular flight routes from Washington, D.C. to Koh Samui are Washington, D.C. Dulles Intl - Ko Samui, Washington, D.C. Reagan-National - Ko Samui and Baltimore/Washington - Ko Samui.

COVID Restrictions

View COVID Travel Restrictions for Koh Samui, Thailand

Do I need a COVID test to fly to Koh Samui from Washington, D.C.?

Information is based on travel restrictions from Washington, D.C. to Ko Samui

Most visitors from Washington, D.C. can enter Ko Samui without restrictions.

COVID-19 testing requirements
Visitors from Washington, D.C. are not required to present a negative COVID-19 PCR test or antigen result upon entering Ko Samui.

Quarantine requirements
Visitors from Washington, D.C. are not required to quarantine after entering Ko Samui.

Do I need a test to fly back to Washington, D.C. from Koh Samui?

Returning to Washington, D.C. from Ko Samui

COVID-19 testing requirements
Visitors from Ko Samui are not required to present a negative COVID-19 PCR test or antigen result upon entering Washington, D.C..

Quarantine requirements
Visitors from Ko Samui are not required to quarantine after entering Washington, D.C..

Hide COVID Travel Restrictions for Koh Samui, Thailand

Destination information for Koh Samui

Things to know before you go - useful duration and weather info for your trip from Washington, D.C. to Koh Samui.
Today's exchange rate
$1 = ฿35.65
Average temperature for July in Koh Samui
89.6 °F
Avg rainfall for July in Koh Samui
3.6 ″

Airports servicing Washington, D.C.

Reagan-National (DCA)

Airports servicing Koh Samui

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