Cheapest return flights from Bangkok to Singapore in September from $111

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

Return flights

06 Sep - 08 Sep Thai AirAsia
19 Sep - 22 Sep Scoot direct
11 Sep - 15 Sep Scoot direct
25 Sep - 29 Sep Scoot direct
19 Sep - 21 Sep Scoot direct
05 Sep - 08 Sep Thai Lion Air direct
01 Sep - 08 Sep Thai Lion Air direct
09 Sep - 10 Sep Thai Lion Air direct
16 Sep - 24 Sep Thai Lion Air direct
24 Sep - 29 Sep Thai AirAsia direct
30 Sep - 07 Oct Thai Lion Air direct
25 Sep - 21 Oct Thai Lion Air direct
28 Sep - 05 Oct Thai AirAsia direct
27 Sep - 09 Oct Thai Lion Air direct
30 Sep - 01 Oct Thai AirAsia direct
30 Sep - 08 Oct Thai AirAsia direct
24 Sep - 01 Oct Thai AirAsia direct
24 Sep - 08 Oct Thai AirAsia direct
17 Sep - 01 Oct Thai AirAsia direct
17 Sep - 08 Oct Thai AirAsia direct

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

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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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