Our cheapest offers for flights from London Heathrow to Chiang Mai

Here you can compare cheap flights from London Heathrow (LHR) to Chiang Mai (CNX) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Chiang Mai. Prices and availability may change at any time.

	Outbound	Return	Airlines	Baggage	Price
London Heathrow Chiang Mai	Outbound 09/02/26 2 Stopovers (PVG, SHA, KMG) MU0552, MU5804, MU7609 28h 40min	Return -	China Eastern Airlines		£287
London Heathrow Chiang Mai	Outbound 31/01/26 2 Stopovers (PVG, KMG) MU0552, MU5816, MU9639 29h 05min	Return 03/02/26 2 Stopovers (KMG, PVG) MU9620, MU5819, MU0551 32h 05min	China Eastern Airlines		£467
Best option London Heathrow Chiang Mai	Outbound 22/01/26 1 Stopover (PEK) CA0938, CA0823 18h 25min	Return 09/02/26 1 Stopover (PEK) CA0824, CA0937 25h 45min	Air China	?	£494
London Heathrow Chiang Mai Please note: transfer for connecting flight	Outbound 07/02/26 1 Stopover (AUH) EY0062, EY0426 14h 15min	Return 23/02/26 1 Stopover (BKK) FD4097, TG0910 19h 25min	Etihad Airways		£874
London Heathrow Chiang Mai	Outbound 31/01/26 2 Stopovers (PVG, KMG) MU0552, MU5816, MU9639 29h 05min	Return 03/02/26 2 Stopovers (KMG, PVG) MU9620, MU5819, MU0551 32h 05min	China Eastern Airlines		£468
London Heathrow Chiang Mai	Outbound 22/01/26 1 Stopover (PEK) CA0856, CA0823 21h 10min	Return 09/02/26 1 Stopover (PEK) CA0824, CA0855 23h 50min	Air China	?	£495
London Heathrow Chiang Mai	Outbound 31/01/26 1 Stopover (PEK) CA0856, CA0823 21h 10min	Return 03/02/26 1 Stopover (PEK) CA0824, CA0855 23h 50min	Air China		£530
London Heathrow Chiang Mai	Outbound 22/01/26 1 Stopover (PEK) CA0938, CA0823 18h 25min	Return 09/02/26 1 Stopover (PEK) CA0824, CA0855 23h 50min	Air China	?	£538
London Heathrow Chiang Mai	Outbound 31/01/26 2 Stopovers (PVG, KMG) MU0552, MU5818, MU9639 29h 05min	Return 03/02/26 2 Stopovers (KMG, PVG) MU9620, MU0747, MU0551 32h 05min	China Eastern Airlines	?	£561
London Heathrow Chiang Mai	Outbound 31/01/26 1 Stopover (PVG) MU0552, MU0205 34h 20min	Return 03/02/26 1 Stopover (PVG) MU7260, MU0551 25h 10min	China Eastern Airlines	?	£597

Tips and tricks to help you find cheap flights from London Heathrow to Chiang Mai

Important flight information

Flight information: London Heathrow - Chiang Mai

Cheapest outbound flight from	286,48 £
Outbound and return from	466,99 £
Distance	9025 km
Departure airport	Airport London Heathrow (LHR)
Arrival airport	Airport Chiang Mai (CNX)
Destination country	Flights to Thailand

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