Cheapest one-way flights from Chiang Mai to London in September from $411
AirHint found the following cheapest one-way flights from Chiang Mai (CNX) to London (LGW) in September 2025 (see full year).
One-Way flights
| 30 Sep | AirAsia | ||
| 17 Sep | HK Express | ||
| 07 Sep | Thai AirAsia | ||
| 16 Sep | Thai VietJet Air | ||
| 10 Sep | Thai AirAsia | ||
| 11 Sep | Thai VietJet Air | ||
| 14 Sep | Thai AirAsia |
Also check the deals for return flights from Chiang Mai to London in September.
The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
