AirHint found the following cheapest return flights from Chiang Rai (CEI) to Singapore (SIN) in January 2026 (see full year).
Return flights
| 17 Jan - 19 Jan | Scoot | direct | |
| 12 Jan - 16 Jan | Thai AirAsia | ||
| 12 Jan - 16 Jan | Scoot | direct |
Also check the deals for one-way flights from Chiang Rai to Singapore in January.
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