Cheap flights from Frederick to Koh Samui from CA $1,586

View CA $1,586 flight on Mon, Jun. 8, 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 and start at CA $1,586 for one-way flights and CA $2,813 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Etihad Airways
Mon, Jun. 8 - Mon, Jun. 15
IAD
Washington
USM
Koh Samui
CA $2,813 Roundtrip, found 2 days ago
CA $2,813
Roundtrip
found 2 days ago
Select Etihad Airways flight, departing Mon, Jun. 8 from Washington to Koh Samui, returning Mon, Jun. 15, priced at CA $2,813 found 2 days ago
Etihad Airways
Mon, Jun. 8 - Mon, Jun. 15
IAD
Washington
USM
Koh Samui
CA $2,813 Roundtrip, found 2 days ago
CA $2,813
Roundtrip
found 2 days ago
Select Etihad Airways flight, departing Mon, Jun. 8 from Washington to Koh Samui, returning Mon, Jun. 15, priced at CA $2,813 found 2 days ago
Emirates
Mon, Jun. 8 - Mon, Jun. 15
IAD
Washington
USM
Koh Samui
CA $3,025 Roundtrip, found 2 days ago
CA $3,025
Roundtrip
found 2 days ago
Select Emirates flight, departing Mon, Jun. 8 from Washington to Koh Samui, returning Mon, Jun. 15, priced at CA $3,025 found 2 days ago
Etihad Airways
Mon, Jun. 8 - Mon, Jun. 15
IAD
Washington
USM
Koh Samui
CA $3,055 Roundtrip, found 2 days ago
CA $3,055
Roundtrip
found 2 days ago
Select Etihad Airways flight, departing Mon, Jun. 8 from Washington to Koh Samui, returning Mon, Jun. 15, priced at CA $3,055 found 2 days ago
Ethiopian Airlines
Mon, Jun. 8 - Mon, Jun. 15
IAD
Washington
USM
Koh Samui
CA $3,079 Roundtrip, found 2 days ago
CA $3,079
Roundtrip
found 2 days ago
Select Ethiopian Airlines flight, departing Mon, Jun. 8 from Washington to Koh Samui, returning Mon, Jun. 15, priced at CA $3,079 found 2 days ago
Qatar Airways
Mon, Jun. 8 - Mon, Jun. 15
IAD
Washington
USM
Koh Samui
CA $3,275 Roundtrip, found 2 days ago
CA $3,275
Roundtrip
found 2 days ago
Select Qatar Airways flight, departing Mon, Jun. 8 from Washington to Koh Samui, returning Mon, Jun. 15, priced at CA $3,275 found 2 days ago
Austrian Airlines
Mon, Jun. 8 - Mon, Jun. 15
IAD
Washington
USM
Koh Samui
CA $5,276 Roundtrip, found 2 days ago
CA $5,276
Roundtrip
found 2 days ago
Select Austrian Airlines flight, departing Mon, Jun. 8 from Washington to Koh Samui, returning Mon, Jun. 15, priced at CA $5,276 found 2 days ago
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