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

Return flights

24 Sep - 30 Oct	SWISS
18 Sep - 25 Sep	Royal Jordanian
11 Sep - 18 Sep	Royal Jordanian
16 Sep - 23 Sep	Royal Jordanian
20 Sep - 27 Sep	Royal Jordanian
25 Sep - 02 Oct	Royal Jordanian
15 Sep - 02 Oct	Royal Jordanian
18 Sep - 21 Sep	Oman Air
23 Sep - 30 Sep	Oman Air
26 Sep - 02 Oct	Oman Air
28 Sep - 12 Oct	Oman Air
27 Sep - 03 Oct	Oman Air
22 Sep - 07 Oct	Oman Air
28 Sep - 09 Oct	Oman Air
28 Sep - 31 Oct	Oman Air
25 Sep - 27 Oct	Oman Air
13 Sep - 20 Sep	Royal Jordanian
17 Sep - 30 Sep	Lufthansa
18 Sep - 30 Sep	Lufthansa
17 Sep - 23 Sep	Lufthansa

Also check the deals for one-way flights from Mumbai 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.

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Cheapest return flights from Mumbai to London in September from $290

Return flights