Cheap flights from Bath to Koh Samui

View AU$869 flight on Fri, 16 Jan. 2026Opens in a new window

Popular airlines from Bath 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 35% 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 Bath (BRS) 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.

Swiss International Air Lines
Mon, 10 Nov. - Mon, 24 Nov.
LHR
London
USM
Koh Samui
AU$1,390 Return, found 3 days ago
AU$1,390
Return
found 3 days ago
Select Swiss International Air Lines flight, departing Mon, 10 Nov. from London to Koh Samui, returning Mon, 24 Nov., priced at AU$1,390 found 3 days ago
Swiss International Air Lines
Mon, 22 Sep. - Tue, 30 Sep.
LHR
London
USM
Koh Samui
AU$1,444 Return, found 3 days ago
AU$1,444
Return
found 3 days ago
Select Swiss International Air Lines flight, departing Mon, 22 Sep. from London to Koh Samui, returning Tue, 30 Sep., priced at AU$1,444 found 3 days ago
Singapore Airlines
Thu, 13 Nov. - Thu, 20 Nov.
LHR
London
USM
Koh Samui
AU$1,581 Return, found 2 days ago
AU$1,581
Return
found 2 days ago
Select Singapore Airlines flight, departing Thu, 13 Nov. from London to Koh Samui, returning Thu, 20 Nov., priced at AU$1,581 found 2 days ago
Air France
Thu, 13 Nov. - Thu, 20 Nov.
LHR
London
USM
Koh Samui
AU$1,646 Return, found 2 days ago
AU$1,646
Return
found 2 days ago
Select Air France flight, departing Thu, 13 Nov. from London to Koh Samui, returning Thu, 20 Nov., priced at AU$1,646 found 2 days ago
Austrian Airlines
Mon, 22 Sep. - Tue, 30 Sep.
LHR
London
USM
Koh Samui
AU$1,716 Return, found 3 days ago
AU$1,716
Return
found 3 days ago
Select Austrian Airlines flight, departing Mon, 22 Sep. from London to Koh Samui, returning Tue, 30 Sep., priced at AU$1,716 found 3 days ago
KLM
Fri, 28 Nov. - Mon, 8 Dec.
BRS
Bristol
USM
Koh Samui
AU$1,717 Return, found 4 days ago
AU$1,717
Return
found 4 days ago
Select KLM flight, departing Fri, 28 Nov. from Bristol to Koh Samui, returning Mon, 8 Dec., priced at AU$1,717 found 4 days ago
*Available to Expedia members.