AirHint found the following cheapest return flights from Honolulu (HNL) to Singapore (SIN) in December 2025 (see full year).
Return flights
| 16 Dec - 14 Jan | Zipair | ||
| 30 Dec - 06 Jan | Zipair | ||
| 29 Dec - 05 Jan | ANA | ||
| 19 Dec - 25 Dec | Philippine Airlines |
Also check the deals for one-way flights from Honolulu to Singapore in December.
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