Cheap flights from Chicago to Koh Samui Islands from CA $735

View CA $735 flight on Mon, Nov. 10, 2025Opens in a new window

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Cheap flights from Chicago (CHI) to Koh Samui Islands (USM)

Prices were available within the past 7 days and start at CA $735 for one-way flights and CA $1,627 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

EVA Airways
Mon, Nov. 10 - Mon, Nov. 17
ORD
Chicago
USM
Koh Samui
CA $1,627 Roundtrip, found 2 days ago
CA $1,627
Roundtrip
found 2 days ago
Select EVA Airways flight, departing Mon, Nov. 10 from Chicago to Koh Samui, returning Mon, Nov. 17, priced at CA $1,627 found 2 days ago
Japan Airlines
Mon, Nov. 10 - Mon, Nov. 17
ORD
Chicago
USM
Koh Samui
CA $1,999 Roundtrip, found 2 days ago
CA $1,999
Roundtrip
found 2 days ago
Select Japan Airlines flight, departing Mon, Nov. 10 from Chicago to Koh Samui, returning Mon, Nov. 17, priced at CA $1,999 found 2 days ago
Japan Airlines
Mon, Nov. 10 - Mon, Nov. 17
ORD
Chicago
USM
Koh Samui
CA $2,003 Roundtrip, found 2 days ago
CA $2,003
Roundtrip
found 2 days ago
Select Japan Airlines flight, departing Mon, Nov. 10 from Chicago to Koh Samui, returning Mon, Nov. 17, priced at CA $2,003 found 2 days ago
Japan Airlines
Mon, Nov. 10 - Mon, Nov. 17
ORD
Chicago
USM
Koh Samui
CA $2,005 Roundtrip, found 2 days ago
CA $2,005
Roundtrip
found 2 days ago
Select Japan Airlines flight, departing Mon, Nov. 10 from Chicago to Koh Samui, returning Mon, Nov. 17, priced at CA $2,005 found 2 days ago
Japan Airlines
Mon, Nov. 10 - Mon, Nov. 17
ORD
Chicago
USM
Koh Samui
CA $2,013 Roundtrip, found 2 days ago
CA $2,013
Roundtrip
found 2 days ago
Select Japan Airlines flight, departing Mon, Nov. 10 from Chicago to Koh Samui, returning Mon, Nov. 17, priced at CA $2,013 found 2 days ago
Japan Airlines
Mon, Nov. 10 - Mon, Nov. 17
ORD
Chicago
USM
Koh Samui
CA $2,017 Roundtrip, found 2 days ago
CA $2,017
Roundtrip
found 2 days ago
Select Japan Airlines flight, departing Mon, Nov. 10 from Chicago to Koh Samui, returning Mon, Nov. 17, priced at CA $2,017 found 2 days ago
Japan Airlines
Mon, Nov. 10 - Mon, Nov. 17
ORD
Chicago
USM
Koh Samui
CA $2,019 Roundtrip, found 2 days ago
CA $2,019
Roundtrip
found 2 days ago
Select Japan Airlines flight, departing Mon, Nov. 10 from Chicago to Koh Samui, returning Mon, Nov. 17, priced at CA $2,019 found 2 days ago
Japan Airlines
Mon, Nov. 10 - Mon, Nov. 17
ORD
Chicago
USM
Koh Samui
CA $2,031 Roundtrip, found 2 days ago
CA $2,031
Roundtrip
found 2 days ago
Select Japan Airlines flight, departing Mon, Nov. 10 from Chicago to Koh Samui, returning Mon, Nov. 17, priced at CA $2,031 found 2 days ago
British Airways
Mon, Nov. 10 - Mon, Nov. 17
ORD
Chicago
USM
Koh Samui
CA $2,794 Roundtrip, found 2 days ago
CA $2,794
Roundtrip
found 2 days ago
Select British Airways flight, departing Mon, Nov. 10 from Chicago to Koh Samui, returning Mon, Nov. 17, priced at CA $2,794 found 2 days ago
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