AirHint found the following cheapest return flights from London (LHR) to Xi'an (XIY) in August 2025 (see full year).

Return flights

31 Aug - 07 Sep	Air China
27 Aug - 03 Sep	China Southern
27 Aug - 07 Sep	China Eastern
29 Aug - 05 Sep	China Eastern
31 Aug - 19 Sep	Air China
31 Aug - 12 Sep	China Southern
29 Aug - 07 Sep	China Eastern
29 Aug - 12 Sep	China Eastern
31 Aug - 14 Sep	Air China
29 Aug - 16 Sep	China Eastern

Also check the deals for one-way flights from London to Xi'an in August.

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 London to Xi'an in August from $659

Return flights