AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Singapore (SIN) in December 2025 (see full year).
Return flights
| 21 Dec - 30 Dec | Breeze Airways | ||
| 23 Dec - 30 Dec | Air France | ||
| 19 Dec - 28 Dec | Frontier Airlines | ||
| 15 Dec - 05 Jan | United | ||
| 25 Dec - 03 Jan | Frontier Airlines |
Also check the deals for one-way flights from Raleigh-durham to Singapore in December.
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