AirHint found the following cheapest return flights from Tunis (TUN) to London (LGW) in September 2026 (see full year).

Return flights

15 Sep - 22 Sep	Nouvelair	direct
17 Sep - 24 Sep	Nouvelair	direct
20 Sep - 27 Sep	Nouvelair	direct
22 Sep - 29 Sep	Nouvelair	direct
10 Sep - 17 Sep	Tunisair	direct
12 Sep - 19 Sep	Tunisair	direct
13 Sep - 20 Sep	Tunisair	direct
19 Sep - 26 Sep	Tunisair	direct
08 Sep - 15 Sep	Nouvelair	direct
14 Sep - 21 Sep	Tunisair	direct

Also check the deals for one-way flights from Tunis 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 Tunis to London in September from $138

Return flights