AirHint found the following cheapest return flights from Edinburgh (EDI) to Bangkok (BKK) in September 2025 (see full year).

Return flights

17 Sep - 29 Oct	Pegasus Airlines
22 Sep - 04 Oct	SWISS
21 Sep - 05 Oct	SWISS
09 Sep - 23 Sep	Austrian Airlines
16 Sep - 31 Oct	Pegasus Airlines
11 Sep - 30 Sep	Austrian Airlines
11 Sep - 25 Sep	Austrian Airlines
09 Sep - 30 Sep	Austrian Airlines
16 Sep - 23 Sep	SWISS
02 Sep - 30 Sep	SWISS
27 Sep - 10 Oct	SWISS
03 Sep - 02 Oct	SWISS
16 Sep - 14 Oct	SWISS
11 Sep - 21 Oct	SWISS
02 Sep - 02 Oct	SWISS
15 Sep - 03 Oct	SWISS
01 Sep - 30 Sep	SWISS
12 Sep - 29 Sep	Ryanair
12 Sep - 21 Sep	Ryanair
12 Sep - 22 Sep	Ryanair

Also check the deals for one-way flights from Edinburgh to Bangkok in September.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Edinburgh to Bangkok in September from $597

Return flights