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

Return flights

01 Sep - 30 Sep	Wizz Air Malta
12 Sep - 15 Sep	Ryanair
04 Sep - 08 Sep	Ryanair
05 Sep - 08 Sep	Ryanair
19 Sep - 21 Sep	Ryanair
11 Sep - 15 Sep	Ryanair
19 Sep - 22 Sep	Ryanair
17 Sep - 21 Sep	Ryanair
22 Sep - 29 Sep	Wizz Air
18 Sep - 21 Sep	Ryanair
29 Sep - 05 Oct	Wizz Air
25 Sep - 05 Oct	Ryanair
29 Sep - 01 Oct	British Airways
27 Sep - 02 Oct	LOT
26 Sep - 03 Oct	LOT
27 Sep - 03 Oct	LOT

Also check the deals for one-way flights from Frankfurt to Sandefjord 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 Frankfurt to Sandefjord in September from 105€

Return flights