AirHint found the following cheapest return flights from Amsterdam (AMS) to Singapore (SIN) in August 2025 (see full year).

Return flights

20 Aug - 23 Sep	IndiGo
22 Aug - 25 Sep	IndiGo
22 Aug - 11 Sep	IndiGo
14 Aug - 11 Sep	Air India
25 Aug - 09 Sep	IndiGo
18 Aug - 01 Sep	Air India
14 Aug - 14 Sep	Air India
28 Aug - 04 Sep	Air India
14 Aug - 08 Sep	Air India
18 Aug - 15 Sep	Air India
14 Aug - 31 Aug	Air India
21 Aug - 27 Aug	Air India
21 Aug - 31 Aug	Air India
17 Aug - 31 Aug	Air India
20 Aug - 27 Aug	Air India
13 Aug - 20 Aug	IndiGo
07 Aug - 14 Aug	Air India
17 Aug - 26 Aug	Air India
08 Aug - 14 Aug	Air India
19 Aug - 26 Aug	Air India

Also check the deals for one-way flights from Amsterdam to Singapore in August.

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 Amsterdam to Singapore in August from 554€

Return flights