AirHint found the following cheapest return flights from Singapore (SIN) to Haikou (HAK) in May 2026 (see full year).
Return flights
| 18 May - 23 May | Scoot | direct | |
| 30 May - 04 Jun | Scoot | direct |
Also check the deals for one-way flights from Singapore to Haikou in May.
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