AirHint found the following cheapest return flights from London (LGW) to Tromso (TOS) in June 2026 (see full year).

Return flights

01 Jun - 08 Jun	Norwegian
06 Jun - 13 Jun	Norwegian
30 Jun - 08 Jul	Norwegian
24 Jun - 08 Jul	Norwegian
29 Jun - 06 Jul	Norwegian
27 Jun - 01 Jul	Norwegian
30 Jun - 19 Jul	Norwegian
30 Jun - 13 Jul	Norwegian
30 Jun - 12 Jul	Norwegian
27 Jun - 04 Jul	Norwegian
18 Jun - 23 Jun	Norwegian
19 Jun - 23 Jun	Norwegian Air Sweden AOC
25 Jun - 02 Jul	Norwegian
24 Jun - 13 Jul	Norwegian
17 Jun - 22 Jun	Norwegian
15 Jun - 25 Jun	Norwegian
19 Jun - 22 Jun	Norwegian
25 Jun - 28 Jun	Norwegian
30 Jun - 30 Jun	Norwegian
18 Jun - 21 Jun	Norwegian

Also check the deals for one-way flights from London to Tromso in June.

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 London to Tromso in June from 246€

Return flights