Cheapest return flights from Chiang Mai to London in May from 784€
AirHint found the following cheapest return flights from Chiang Mai (CNX) to London (LHR) in May 2025 (see full year).
Return flights
| 27 May - 02 Jun | China Southern | ||
| 12 May - 18 May | Air China |
Also check the deals for one-way flights from Chiang Mai to London in May.
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.
