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

Return flights

04 Sep - 06 Sep	Air India
15 Sep - 22 Sep	Air India
17 Sep - 25 Sep	Air India
17 Sep - 22 Sep	Air India
02 Sep - 17 Sep	Air India
17 Sep - 29 Sep	Air India
14 Sep - 18 Sep	Air India
21 Sep - 24 Sep	Air India
02 Sep - 11 Sep	Air India
17 Sep - 23 Sep	Air India
23 Sep - 08 Oct	Air India
17 Sep - 01 Oct	Air India
21 Sep - 06 Oct	Air India
24 Sep - 03 Oct	Air India
10 Sep - 11 Oct	Air India
25 Sep - 08 Oct	Air India
25 Sep - 02 Oct	Air India
18 Sep - 02 Oct	Air India
23 Sep - 07 Oct	Air India
27 Sep - 06 Oct	Air India

Also check the deals for one-way flights from Tiruchirappalli 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 Tiruchirappalli to Singapore in September from $138

Return flights