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

Return flights

17 Sep - 21 Sep	Ryanair
30 Sep - 15 Oct	easyJet
10 Sep - 17 Sep	Ryanair
18 Sep - 25 Sep	Ryanair
12 Sep - 17 Sep	Wizz Air
11 Sep - 14 Sep	Ryanair
15 Sep - 21 Sep	Wizz Air
19 Sep - 21 Sep	easyJet
11 Sep - 27 Sep	Ryanair
12 Sep - 14 Sep	Wizz Air
23 Sep - 25 Sep	Ryanair
16 Sep - 01 Oct	Ryanair
28 Sep - 07 Oct	TAP

Also check the deals for one-way flights from Lisbon 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 Lisbon to Sandefjord in September from $167

Return flights