AirHint found the following cheapest return flights from Madrid (MAD) to Singapore (SIN) in September 2026 (see full year).
Return flights
| 04 Sep - 17 Sep | SWISS | ||
| 07 Sep - 13 Sep | Finnair | ||
| 16 Sep - 21 Sep | Finnair | ||
| 21 Sep - 30 Sep | Finnair | ||
| 01 Sep - 13 Sep | Finnair | ||
| 14 Sep - 20 Sep | Etihad Airways | ||
| 11 Sep - 26 Sep | SWISS | ||
| 15 Sep - 09 Oct | Finnair |
Also check the deals for one-way flights from Madrid to Singapore in September.
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