AirHint found the following cheapest one-way flights from Xi'an (XIY) to London (LHR) in September 2025 (see full year).

One-Way flights

24 Sep	Loong Air
25 Sep	Thai Lion Air
28 Sep	Thai AirAsia
21 Sep	Shandong Airlines
29 Sep	Thai Lion Air
26 Sep	Shenzhen Airlines
27 Sep	Thai Lion Air
20 Sep	China Southern
30 Sep	Thai Lion Air
19 Sep	Thai AirAsia

Also check the deals for return flights from Xi'an to London in September.

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.

Book a cheap hotel in London

Cheap car rent in London

Cheapest one-way flights from Xi'an to London in September from $453

One-Way flights