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

Return flights

08 Sep - 12 Sep	transavia	direct
26 Sep - 28 Sep	transavia	direct
11 Sep - 18 Sep	transavia	direct
08 Sep - 11 Sep	transavia	direct
18 Sep - 26 Sep	transavia	direct
21 Sep - 25 Sep	transavia	direct
15 Sep - 22 Sep	transavia	direct
19 Sep - 22 Sep	transavia	direct
08 Sep - 15 Sep	transavia	direct
21 Sep - 28 Sep	transavia	direct
29 Sep - 05 Oct	transavia	direct
30 Sep - 03 Oct	transavia
26 Sep - 01 Oct	transavia

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

Book a cheap hotel in London

Cheap car rent in London

Cheapest return flights from Rotterdam to London in September from 113€

Return flights