Cheap flights from Frederick to Koh Samui

View AU$966 flight on Fri, 3 Apr. 2026Opens in a new window

Popular airlines from Frederick to Koh Samui

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Cheap Flights from Frederick (IAD) to Koh Samui (USM)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, 3 Apr. - Sat, 11 Apr.
IAD
Washington
USM
Koh Samui
AU$1,554 Return, found 2 days ago
AU$1,554
Return
found 2 days ago
Select United flight, departing Fri, 3 Apr. from Washington to Koh Samui, returning Sat, 11 Apr., priced at AU$1,554 found 2 days ago
United
Fri, 3 Apr. - Sat, 11 Apr.
IAD
Washington
USM
Koh Samui
AU$1,581 Return, found 2 days ago
AU$1,581
Return
found 2 days ago
Select United flight, departing Fri, 3 Apr. from Washington to Koh Samui, returning Sat, 11 Apr., priced at AU$1,581 found 2 days ago
Turkish Airlines
Fri, 3 Apr. - Sat, 11 Apr.
IAD
Washington
USM
Koh Samui
AU$1,953 Return, found 2 days ago
AU$1,953
Return
found 2 days ago
Select Turkish Airlines flight, departing Fri, 3 Apr. from Washington to Koh Samui, returning Sat, 11 Apr., priced at AU$1,953 found 2 days ago
Qatar Airways
Fri, 3 Apr. - Sat, 11 Apr.
IAD
Washington
USM
Koh Samui
AU$2,768 Return, found 2 days ago
AU$2,768
Return
found 2 days ago
Select Qatar Airways flight, departing Fri, 3 Apr. from Washington to Koh Samui, returning Sat, 11 Apr., priced at AU$2,768 found 2 days ago
KLM
Fri, 3 Apr. - Sat, 11 Apr.
IAD
Washington
USM
Koh Samui
AU$3,053 Return, found 2 days ago
AU$3,053
Return
found 2 days ago
Select KLM flight, departing Fri, 3 Apr. from Washington to Koh Samui, returning Sat, 11 Apr., priced at AU$3,053 found 2 days ago
Emirates
Fri, 3 Apr. - Sat, 11 Apr.
IAD
Washington
USM
Koh Samui
AU$3,110 Return, found 2 days ago
AU$3,110
Return
found 2 days ago
Select Emirates flight, departing Fri, 3 Apr. from Washington to Koh Samui, returning Sat, 11 Apr., priced at AU$3,110 found 2 days ago
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