AirHint found the following cheapest return flights from Riga (RIX) to Singapore (SIN) in December 2025 (see full year).
Return flights
| 08 Dec - 14 Dec | airBaltic | ||
| 16 Dec - 04 Jan | Ryanair | ||
| 23 Dec - 04 Jan | Ryanair | ||
| 27 Dec - 01 Jan | airBaltic |
Also check the deals for one-way flights from Riga to Singapore in December.
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