AirHint found the following cheapest return flights from Newark (EWR) to Singapore (SIN) in December 2025 (see full year).
Return flights
| 27 Dec - 12 Jan | United | ||
| 27 Dec - 22 Jan | Hawaiian Airlines | ||
| 31 Dec - 07 Jan | Air Canada | ||
| 30 Dec - 20 Jan | SWISS | ||
| 29 Dec - 16 Jan | Alaska Airlines | ||
| 30 Dec - 06 Jan | Air India | ||
| 30 Dec - 18 Jan | SWISS |
Also check the deals for one-way flights from Newark to Singapore in December.
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