AirHint found the following cheapest return flights from Frankfurt (FRA) to Tallinn (TLL) in September 2025 (see full year).

Return flights

16 Sep - 23 Sep	Ryanair
30 Sep - 03 Oct	Ryanair
23 Sep - 26 Sep	Ryanair
03 Sep - 10 Sep	Ryanair
15 Sep - 22 Sep	Ryanair
30 Sep - 04 Oct	Ryanair
17 Sep - 22 Sep	Ryanair
08 Sep - 26 Sep	Ryanair
15 Sep - 02 Oct	Ryanair
17 Sep - 20 Sep	Ryanair
10 Sep - 21 Sep	Ryanair
06 Sep - 09 Sep	Ryanair
22 Sep - 28 Sep	Ryanair
25 Sep - 01 Oct	airBaltic
25 Sep - 01 Oct	Lufthansa	direct
15 Sep - 02 Oct	Lufthansa	direct
30 Sep - 04 Oct	Lufthansa	direct
30 Sep - 03 Oct	Lufthansa	direct

Also check the deals for one-way flights from Frankfurt to Tallinn 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 Frankfurt to Tallinn in September from $180

Return flights