Flights to Koh Samui from West Chicago

View ฿21,590 flight on Thu, 15 Jan 2026Opens in a new window

Popular airlines from West Chicago to Koh Samui

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Cheap Flights from West Chicago (CHI) to Koh Samui (USM)

Prices were available within the past 7 days and start at ฿21,590 for one-way flights and ฿41,300 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, 10 Aug - Sun, 17 Aug
ORD
Chicago
USM
Koh Samui
฿41,300 Return, found 1 day ago
฿41,300
Return
found 1 day ago
Select United flight, departing Sun, 10 Aug from Chicago to Koh Samui, returning Sun, 17 Aug, priced at ฿41,300 found 1 day ago
United
Tue, 5 Aug - Tue, 12 Aug
ORD
Chicago
USM
Koh Samui
฿42,565 Return, found 2 days ago
฿42,565
Return
found 2 days ago
Select United flight, departing Tue, 5 Aug from Chicago to Koh Samui, returning Tue, 12 Aug, priced at ฿42,565 found 2 days ago
EVA Airways
Tue, 5 Aug - Tue, 12 Aug
ORD
Chicago
USM
Koh Samui
฿54,815 Return, found 2 days ago
฿54,815
Return
found 2 days ago
Select EVA Airways flight, departing Tue, 5 Aug from Chicago to Koh Samui, returning Tue, 12 Aug, priced at ฿54,815 found 2 days ago
Qatar Airways
Tue, 5 Aug - Tue, 12 Aug
ORD
Chicago
USM
Koh Samui
฿81,150 Return, found 2 days ago
฿81,150
Return
found 2 days ago
Select Qatar Airways flight, departing Tue, 5 Aug from Chicago to Koh Samui, returning Tue, 12 Aug, priced at ฿81,150 found 2 days ago
Turkish Airlines
Wed, 6 Aug - Wed, 13 Aug
ORD
Chicago
USM
Koh Samui
฿101,870 Return, found 5 days ago
฿101,870
Return
found 5 days ago
Select Turkish Airlines flight, departing Wed, 6 Aug from Chicago to Koh Samui, returning Wed, 13 Aug, priced at ฿101,870 found 5 days ago
Etihad Airways
Sun, 10 Aug - Sun, 17 Aug
ORD
Chicago
USM
Koh Samui
฿122,830 Return, found 1 day ago
฿122,830
Return
found 1 day ago
Select Etihad Airways flight, departing Sun, 10 Aug from Chicago to Koh Samui, returning Sun, 17 Aug, priced at ฿122,830 found 1 day ago
*Available to Expedia members.