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

Return flights

16 Sep - 23 Sep	Air India
15 Sep - 23 Sep	Air India
17 Sep - 02 Oct	Air India
17 Sep - 24 Sep	Air India
18 Sep - 23 Sep	Air India
11 Sep - 30 Oct	IndiGo
25 Sep - 27 Sep	Air India
08 Sep - 11 Sep	IndiGo
28 Sep - 03 Oct	Air India
21 Sep - 28 Sep	Air India
26 Sep - 03 Oct	Air India
16 Sep - 17 Sep	Air India
10 Sep - 17 Sep	IndiGo
08 Sep - 15 Sep	IndiGo
19 Sep - 03 Oct	Air India
25 Sep - 02 Oct	Air India
16 Sep - 20 Oct	Air India
16 Sep - 02 Oct	Air India
10 Sep - 10 Oct	IndiGo
13 Sep - 08 Oct	Air India

Also check the deals for one-way flights from Amritsar 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 Amritsar to London in September from $607

Return flights