AirHint found the following cheapest return flights from Hamburg (HAM) to Innsbruck (INN) in September 2025 (see full year).

Return flights

08 Sep - 12 Sep	Austrian Airlines
04 Sep - 07 Sep	Austrian Airlines
18 Sep - 24 Sep	Austrian Airlines
04 Sep - 09 Sep	Austrian Airlines
14 Sep - 20 Sep	Austrian Airlines
14 Sep - 19 Sep	Austrian Airlines
17 Sep - 24 Sep	Austrian Airlines
10 Sep - 14 Sep	Austrian Airlines
15 Sep - 22 Sep	Austrian Airlines
08 Sep - 15 Sep	Austrian Airlines
28 Sep - 04 Oct	Austrian Airlines

Also check the deals for one-way flights from Hamburg to Innsbruck 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 Hamburg to Innsbruck in September from 281€

Return flights