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

Return flights

18 Sep - 21 Sep	Lufthansa
04 Sep - 15 Sep	Air Europa
09 Sep - 30 Sep	SWISS
21 Sep - 12 Oct	SWISS
15 Sep - 24 Sep	Ryanair
22 Sep - 28 Sep	Lufthansa
01 Sep - 15 Sep	Ryanair
20 Sep - 25 Oct	Ryanair
19 Sep - 03 Oct	SWISS
15 Sep - 28 Sep	Ryanair
21 Sep - 03 Oct	SWISS
22 Sep - 27 Sep	Ryanair
02 Sep - 15 Sep	Norwegian Air Sweden AOC
14 Sep - 26 Sep	Ryanair

Also check the deals for one-way flights from Alicante 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 Alicante to Bangkok in September from 592€

Return flights