AirHint found the following cheapest one-way flights from Chiang Mai (CNX) to Singapore (SIN) in December 2025 (see full year).
One-Way flights
| 03 Dec | Thai AirAsia | ||
| 05 Dec | Thai AirAsia | ||
| 06 Dec | Thai AirAsia | ||
| 17 Dec | Thai AirAsia | ||
| 09 Dec | Thai AirAsia | ||
| 18 Dec | Thai AirAsia | ||
| 14 Dec | Thai AirAsia | ||
| 08 Dec | Nok Air | ||
| 15 Dec | Thai AirAsia | ||
| 01 Dec | Thai VietJet Air |
Also check the deals for return flights from Chiang Mai to Singapore in December.
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