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

Return flights

22 Sep - 02 Oct	SWISS
28 Sep - 02 Oct	Air France
21 Sep - 25 Sep	Air France
17 Sep - 24 Sep	Air France
16 Sep - 27 Sep	Air France
08 Sep - 18 Sep	Air France
30 Sep - 07 Oct	SWISS
22 Sep - 27 Sep	Air France
22 Sep - 26 Sep	SWISS
18 Sep - 23 Sep	SWISS
17 Sep - 30 Sep	Air France
23 Sep - 01 Oct	SWISS
29 Sep - 02 Oct	Eurowings
09 Sep - 13 Sep	Air France
10 Sep - 17 Sep	Air France
19 Sep - 03 Oct	Air France
29 Sep - 09 Oct	Eurowings
29 Sep - 06 Oct	Eurowings	direct
29 Sep - 04 Oct	Eurowings
30 Sep - 06 Oct	SWISS

Also check the deals for one-way flights from Hannover to Lisbon 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 Hannover to Lisbon in September from $243

Return flights