AirHint found the following cheapest return flights from London (LHR) to Denpasar (DPS) in September 2025 (see full year).

Return flights

21 Sep - 22 Oct	China Southern
21 Sep - 19 Oct	China Southern
21 Sep - 21 Oct	China Southern
23 Sep - 23 Oct	China Southern
23 Sep - 17 Oct	China Southern
29 Sep - 20 Oct	China Eastern
24 Sep - 14 Oct	China Eastern
28 Sep - 21 Oct	China Eastern
24 Sep - 15 Oct	China Eastern
23 Sep - 22 Oct	China Southern
23 Sep - 30 Sep	Air India
23 Sep - 27 Sep	Air India
23 Sep - 26 Sep	Air India
21 Sep - 29 Sep	Shenzhen Airlines
25 Sep - 29 Sep	Air India
26 Sep - 30 Sep	Air India
26 Sep - 29 Sep	Air India
21 Sep - 28 Sep	Shenzhen Airlines
22 Sep - 26 Sep	Air India
22 Sep - 28 Sep	Shenzhen Airlines

Also check the deals for one-way flights from London to Denpasar 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.

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Cheapest return flights from London to Denpasar in September from 564€

Return flights