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

Return flights

20 Sep - 27 Sep	Ryanair	direct
13 Sep - 22 Sep	Ryanair	direct
20 Sep - 22 Sep	Ryanair	direct
13 Sep - 20 Sep	Ryanair	direct
21 Sep - 28 Sep	Ryanair	direct
21 Sep - 22 Sep	Ryanair	direct
20 Sep - 21 Sep	Ryanair	direct
13 Sep - 11 Oct	Ryanair	direct
19 Sep - 21 Sep	Wizz Air
19 Sep - 22 Sep	Wizz Air
15 Sep - 16 Sep	Ryanair
29 Sep - 03 Oct	Wizz Air
30 Sep - 04 Oct	Ryanair
23 Sep - 09 Oct	Ryanair
28 Sep - 02 Oct	Ryanair
18 Sep - 21 Oct	Wizz Air
26 Sep - 03 Oct	Ryanair
27 Sep - 04 Oct	Ryanair
24 Sep - 01 Oct	Wizz Air
27 Sep - 01 Oct	Ryanair

Also check the deals for one-way flights from Sandefjord 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 Sandefjord to London in September from $36

Return flights