AirHint found the following cheapest return flights from Chiang Mai (CNX) to London (LHR) in July 2026 (see full year).

Return flights

14 Jul - 15 Aug	Malaysia Airlines
19 Jul - 01 Aug	Malaysia Airlines
24 Jul - 31 Jul	Malaysia Airlines
24 Jul - 01 Aug	Malaysia Airlines

Also check the deals for one-way flights from Chiang Mai to London in July.

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.

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Cheapest return flights from Chiang Mai to London in July from $1074

Return flights