AirHint found the following cheapest return flights from Mumbai (BOM) to Singapore (SIN) in September 2026 (see full year).

Return flights

17 Sep - 21 Sep	Air India	direct
04 Sep - 12 Sep	Singapore Airlines	direct
18 Sep - 27 Sep	SriLankan Airlines
12 Sep - 25 Sep	Singapore Airlines	direct
26 Sep - 30 Sep	SriLankan Airlines
26 Sep - 30 Sep	Singapore Airlines	direct
16 Sep - 30 Sep	Air India Express
16 Sep - 25 Sep	Air India Express
04 Sep - 07 Sep	Air India Express
04 Sep - 25 Sep	Air India Express

Also check the deals for one-way flights from Mumbai to Singapore 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 Mumbai to Singapore in September from 174€

Return flights