AirHint found the following cheapest return flights from Trondheim (TRD) to London (LGW) in December 2025 (see full year).

Return flights

30 Dec - 06 Jan	Norwegian
28 Dec - 01 Jan	Norwegian
28 Dec - 15 Jan	Norwegian
28 Dec - 08 Jan	Norwegian
28 Dec - 11 Jan	Norwegian
28 Dec - 02 Jan	Norwegian
28 Dec - 18 Jan	Norwegian
31 Dec - 07 Jan	Scandinavian Airlines
28 Dec - 05 Jan	Norwegian
27 Dec - 04 Jan	Norwegian
28 Dec - 30 Dec	Norwegian
29 Dec - 31 Dec	Norwegian
29 Dec - 30 Dec	Norwegian
30 Dec - 31 Dec	Norwegian
27 Dec - 31 Dec	Norwegian
27 Dec - 30 Dec	Norwegian
27 Dec - 28 Dec	Norwegian

Also check the deals for one-way flights from Trondheim to London in December.

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 Trondheim to London in December from 365€

Return flights