Cheap flights from Chicago to Koh Samui

View AU$893 flight on Mon, 8 Sep. 2025Opens in a new window

Popular airlines from Chicago to Koh Samui

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Cheap Flights from Chicago (CHI) 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.

EVA Airways
Mon., 8 Sep. - Fri., 12 Sep.
ORD
Chicago
USM
Koh Samui
AU$1,936 Return, found 1 day ago
AU$1,936
Return
found 1 day ago
Select EVA Airways flight, departing Mon., 8 Sep. from Chicago to Koh Samui, returning Fri., 12 Sep., priced at AU$1,936 found 1 day ago
United
Thu., 8 May - Thu., 15 May
ORD
Chicago
USM
Koh Samui
AU$1,975 Return, found 4 days ago
AU$1,975
Return
found 4 days ago
Select United flight, departing Thu., 8 May from Chicago to Koh Samui, returning Thu., 15 May, priced at AU$1,975 found 4 days ago
United
Tue., 1 Apr. - Mon., 14 Apr.
ORD
Chicago
USM
Koh Samui
AU$1,976 Return, found 23 hours ago
AU$1,976
Return
found 23 hours ago
Select United flight, departing Tue., 1 Apr. from Chicago to Koh Samui, returning Mon., 14 Apr., priced at AU$1,976 found 23 hours ago
Cathay Pacific
Mon., 31 Mar. - Mon., 14 Apr.
ORD
Chicago
USM
Koh Samui
AU$2,419 Return, found 23 hours ago
AU$2,419
Return
found 23 hours ago
Select Cathay Pacific flight, departing Mon., 31 Mar. from Chicago to Koh Samui, returning Mon., 14 Apr., priced at AU$2,419 found 23 hours ago
Japan Airlines
Mon., 8 Sep. - Fri., 12 Sep.
ORD
Chicago
USM
Koh Samui
AU$2,570 Return, found 1 day ago
AU$2,570
Return
found 1 day ago
Select Japan Airlines flight, departing Mon., 8 Sep. from Chicago to Koh Samui, returning Fri., 12 Sep., priced at AU$2,570 found 1 day ago
Qatar Airways
Mon., 8 Sep. - Fri., 12 Sep.
ORD
Chicago
USM
Koh Samui
AU$2,750 Return, found 1 day ago
AU$2,750
Return
found 1 day ago
Select Qatar Airways flight, departing Mon., 8 Sep. from Chicago to Koh Samui, returning Fri., 12 Sep., priced at AU$2,750 found 1 day ago
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