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

Return flights

01 Sep - 10 Sep	IndiGo
16 Sep - 19 Sep	IndiGo
29 Sep - 06 Oct	IndiGo
23 Sep - 30 Sep	Air India
04 Sep - 12 Sep	Air India
07 Sep - 11 Sep	Air India
18 Sep - 25 Sep	Air India
15 Sep - 19 Sep	Air India
22 Sep - 26 Sep	Air India
01 Sep - 17 Sep	Air India
04 Sep - 07 Sep	IndiGo

Also check the deals for one-way flights from Muscat 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 Muscat to Singapore in September from 230€

Return flights