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 25/05/26 2 Stopovers (PVG, KMG) MU0552, MU5818, MU9639 29h 55min	Return 07/06/26 2 Stopovers (KMG, PVG) MU9640, MU8580, MU0551 38h 35min	China Eastern Airlines		£469
Best option London Heathrow Chiang Mai	Outbound 25/05/26 1 Stopover (KUL) MH0003, MH0792 20h 40min	Return 07/06/26 1 Stopover (KUL) MH0773, MH0002 23h 20min	Malaysia Airlines		£568
London Heathrow Chiang Mai Please note: transfer for connecting flight	Outbound 31/03/26 1 Stopover (BKK) BR0068, VZ0118 18h 25min	Return 21/04/26 1 Stopover (BKK) VZ0101, BR0067 17h 15min	EVA Airways, Thai Vietjet Air		£1,312
London Heathrow Chiang Mai	Outbound 25/05/26 2 Stopovers (PVG, KMG) MU0552, MU5818, MU9639 29h 55min	Return 07/06/26 2 Stopovers (KMG, PVG) MU9640, MU8580, MU0551 38h 35min	China Eastern Airlines		£474
London Heathrow Chiang Mai	Outbound 25/05/26 2 Stopovers (PVG, KMG) MU0552, MU0748, MU9639 29h 55min	Return 07/06/26 2 Stopovers (KMG, PVG) MU9620, MU0747, MU0551 32h 20min	China Eastern Airlines		£480
London Heathrow Chiang Mai	Outbound 25/05/26 1 Stopover (PVG) MU0552, MU0205 34h 05min	Return 07/06/26 1 Stopover (PVG) MU0206, MU0551 33h 45min	China Eastern Airlines		£518
London Heathrow Chiang Mai	Outbound 26/05/26 2 Stopovers (VIE, BKK) OS0338, OS0007, OS8683 17h 40min	Return 09/06/26 2 Stopovers (BKK, VIE) OS8680, OS0008, OS0331 18h 20min	Austrian Airlines	?	£571
London Heathrow Chiang Mai	Outbound 25/05/26 1 Stopover (KUL) MH0003, MH0792 20h 40min	Return 07/06/26 1 Stopover (KUL) MH0773, MH0002 23h 20min	Malaysia Airlines	?	£592
London Heathrow Chiang Mai	Outbound 25/05/26 2 Stopovers (PKX, HKG) CZ0674, CZ0355, UO0744 39h 40min	Return 07/06/26 2 Stopovers (DMK, BKK, CAN) SL0503, CZ3082, CZ0303 40h 50min	China Southern Airlines, Hong Kong Express Airways	?	£612
London Heathrow Chiang Mai	Outbound 25/05/26 1 Stopover (AUH) EY0062, EY0426 14h 55min	Return 07/06/26 1 Stopover (AUH) EY0427, EY0061 27h 30min	Etihad Airways	?	£658

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	£468.99
Distance	9025 km
Departure airport	Airport London Heathrow (LHR)
Arrival airport	Airport Chiang Mai (CNX)
Destination country	Flights to Thailand

Alternative routes to Thailand

Flight London Heathrow - Bangkok from £258
Flight London Heathrow - Phuket from £378
Flight London Heathrow - Koh Samui from £622

Flight destinations with a similar price

Flight London Heathrow - Johannesburg from £470
Flight London Heathrow - Kolkata from £501
Flight London Heathrow - Amritsar from £425
Flight London Heathrow - Mauritius from £493
Flight London Heathrow - Islamabad from £462
Flight London Heathrow - Denver from £474
Flight London Heathrow - Washington DC from £459
Flight London Heathrow - Atlanta from £448
Flight London Heathrow - Minneapolis from £504
Flight London Heathrow - Halifax from £458