AirHint found the following cheapest return flights from Singapore (SIN) to Lisbon (LIS) in June 2026 (see full year).
Return flights
| 26 Jun - 07 Jul | Finnair | ||
| 11 Jun - 14 Jun | Finnair | ||
| 16 Jun - 20 Jun | Etihad Airways | ||
| 06 Jun - 20 Jun | KLM | ||
| 21 Jun - 29 Jun | SWISS | ||
| 11 Jun - 24 Jun | KLM |
Also check the deals for one-way flights from Singapore to Lisbon in June.
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