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 17/06/25 2 Stopovers (PKX, CAN) CZ0674, CZ3110, CZ8327 31h 25min	Return 01/07/25 1 Stopover (CAN) CZ8328, CZ0303 37h 30min	China Southern Airlines		£643
London Heathrow Chiang Mai Pay attention to transfer at connecting flight	Outbound 30/06/25 2 Stopovers (DEL, BKK) AI0162, AI2336, FD9162 23h 05min	Return 18/07/25 2 Stopovers (BKK, DEL) FD4121, AI2303, AI0161 20h 10min	Air India, Thai AirAsia		£656
Best option London Heathrow Chiang Mai	Outbound 25/06/25 1 Stopover (PEK) CA0938, CA0823 19h 25min	Return 05/07/25 1 Stopover (PEK) CA0824, CA0937 24h 40min	Air China		£676
London Heathrow Chiang Mai	Outbound 17/06/25 2 Stopovers (PKX, CAN) CZ0674, CZ3110, CZ8327 31h 25min	Return 01/07/25 1 Stopover (CAN) CZ3034, CZ0303 30h 10min	China Southern Airlines		£644
London Heathrow Chiang Mai	Outbound 17/06/25 1 Stopover (CAN) CZ0304, CZ3033 37h 40min	Return 01/07/25 1 Stopover (CAN) CZ3034, CZ0303 30h 10min	China Southern Airlines	?	£693
London Heathrow Chiang Mai	Outbound 09/10/25 1 Stopover (KUL) MH0001, MH0792 34h 05min	Return 14/10/25 1 Stopover (KUL) MH0793, MH0004 31h 55min	Malaysia Airlines		£707
London Heathrow Chiang Mai	Outbound 25/06/25 2 Stopovers (AUH, BKK) EY0062, EY0402, FD4118 22h 10min	Return 05/07/25 2 Stopovers (BKK, AUH) FD4117, EY0401, EY0063 20h 25min	Etihad Airways, Thai AirAsia		£727
London Heathrow Chiang Mai	Outbound 17/06/25 1 Stopover (CAN) CZ0304, CZ8327 30h 15min	Return 01/07/25 1 Stopover (CAN) CZ8328, CZ0303 37h 30min	China Southern Airlines		£733
London Heathrow Chiang Mai	Outbound 09/10/25 1 Stopover (KUL) MH0001, MH0792 34h 05min	Return 14/10/25 1 Stopover (KUL) MH0793, MH0004 31h 55min	Malaysia Airlines		£756
London Heathrow Chiang Mai	Outbound 09/10/25 1 Stopover (KUL) MH0001, MH0792 34h 05min	Return 14/10/25 1 Stopover (KUL) MH0793, MH0004 31h 55min	Malaysia Airlines	?	£757

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

Important flight information

Flight information: London Heathrow - Chiang Mai

Outbound and return from	642,99 £
Distance	9025 km
Departure airport	Airport London Heathrow (LHR)
Arrival airport	Airport Chiang Mai (CNX)
Destination country	Flights to Thailand

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Flight London Heathrow - Bangkok from 454 £
Flight London Heathrow - Phuket from 583 £

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