AirHint found the following cheapest return flights from London (LCY) to Amsterdam (AMS) in September 2026 (see full year).

Return flights

18 Sep - 20 Sep	KLM	direct
24 Sep - 27 Sep	KLM	direct
04 Sep - 06 Sep	KLM	direct
10 Sep - 12 Sep	KLM	direct
18 Sep - 22 Sep	KLM	direct
04 Sep - 07 Sep	KLM	direct
06 Sep - 20 Sep	KLM	direct
03 Sep - 22 Sep	KLM	direct
12 Sep - 19 Sep	KLM	direct
03 Sep - 10 Sep	British Airways	direct
24 Sep - 01 Oct	British Airways	direct
28 Sep - 05 Oct	British Airways	direct
25 Sep - 02 Oct	British Airways	direct
27 Sep - 04 Oct	British Airways	direct
26 Sep - 03 Oct	KLM	direct

Also check the deals for one-way flights from London to Amsterdam 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 Amsterdam in September from $215

Return flights