AirHint found the following cheapest return flights from London (STN) to Jakarta (CGK) in September 2025 (see full year).

Return flights

10 Sep - 23 Sep	Ryanair
09 Sep - 16 Sep	Ryanair
19 Sep - 29 Sep	Ryanair
16 Sep - 23 Sep	Ryanair
16 Sep - 30 Sep	Ryanair
09 Sep - 30 Sep	Ryanair
02 Sep - 23 Sep	Ryanair
15 Sep - 30 Sep	Ryanair
10 Sep - 17 Sep	Ryanair
13 Sep - 23 Sep	AJet
27 Sep - 13 Oct	Ryanair
21 Sep - 05 Oct	Ryanair
17 Sep - 15 Oct	Ryanair
20 Sep - 04 Oct	Pegasus Airlines
18 Sep - 05 Oct	Ryanair
15 Sep - 04 Oct	Ryanair
19 Sep - 04 Oct	Ryanair
23 Sep - 10 Oct	Ryanair
08 Sep - 02 Oct	Ryanair
20 Sep - 05 Oct	Ryanair

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

Cheap car rent in Jakarta

Cheapest return flights from London to Jakarta in September from 548€

Return flights