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Cheapest return flights from Chiang Mai (CNX) to London (LGW), September

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Dates, airline, and price
Dates	Airline	Price
06 Sep 28 Sep	AirAsia
01 Sep 15 Sep	Thai VietJet Air
04 Sep 28 Sep	Nok Air
05 Sep 28 Sep	Thai VietJet Air
14 Sep 27 Sep	Air China
20 Sep 24 Sep	Thai VietJet Air
01 Sep 04 Oct	China Southern
04 Sep 21 Sep	China Southern
17 Sep 30 Oct	Air China
03 Sep 13 Oct	Condor
01 Sep 02 Oct	China Southern

deals for one-way flights from Chiang Mai to London in September.

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Updated Jul 25, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest return flights from Chiang Mai (CNX) to London (LGW), September

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