Cheap Flights from Basel to Koh Samui

View €591 flight on Sat, 20 Sep 2025Opens in a new window

Popular airlines from Basel to Koh Samui

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 15% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Basel to Koh Samui (null-USM)

Prices were available within the past 7 days and start at €591 for one-way flights and €774 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air France
Sat, 20 Sep - Tue, 14 Oct
ZRH
Zürich
USM
Koh Samui
€774 Return, found 4 days ago
€774
Return
found 4 days ago
Select Air France flight, departing Sat, 20 Sep from Zürich to Koh Samui, returning Tue, 14 Oct, priced at €774 found 4 days ago
Air France
Sat, 20 Sep - Tue, 14 Oct
ZRH
Zürich
USM
Koh Samui
€782 Return, found 4 days ago
€782
Return
found 4 days ago
Select Air France flight, departing Sat, 20 Sep from Zürich to Koh Samui, returning Tue, 14 Oct, priced at €782 found 4 days ago
KLM
Sat, 20 Sep - Tue, 14 Oct
ZRH
Zürich
USM
Koh Samui
€937 Return, found 4 days ago
€937
Return
found 4 days ago
Select KLM flight, departing Sat, 20 Sep from Zürich to Koh Samui, returning Tue, 14 Oct, priced at €937 found 4 days ago
Thai Airways International
Sat, 20 Sep - Tue, 14 Oct
ZRH
Zürich
USM
Koh Samui
€970 Return, found 4 days ago
€970
Return
found 4 days ago
Select Thai Airways International flight, departing Sat, 20 Sep from Zürich to Koh Samui, returning Tue, 14 Oct, priced at €970 found 4 days ago
Austrian Airlines
Sat, 20 Sep - Tue, 14 Oct
ZRH
Zürich
USM
Koh Samui
€1,004 Return, found 4 days ago
€1,004
Return
found 4 days ago
Select Austrian Airlines flight, departing Sat, 20 Sep from Zürich to Koh Samui, returning Tue, 14 Oct, priced at €1,004 found 4 days ago
Lufthansa
Sat, 20 Sep - Tue, 14 Oct
ZRH
Zürich
USM
Koh Samui
€1,020 Return, found 4 days ago
€1,020
Return
found 4 days ago
Select Lufthansa flight, departing Sat, 20 Sep from Zürich to Koh Samui, returning Tue, 14 Oct, priced at €1,020 found 4 days ago
*Available to Expedia members.