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

Return flights

24 Sep - 07 Oct	Ryanair
19 Sep - 30 Sep	Ryanair
26 Sep - 30 Sep	Ryanair
30 Sep - 07 Oct	Ryanair
26 Sep - 29 Sep	Ryanair
19 Sep - 22 Sep	Ryanair
25 Sep - 29 Sep	Ryanair
13 Sep - 25 Sep	Ryanair
09 Sep - 12 Sep	Ryanair
28 Sep - 01 Oct	Ryanair
09 Sep - 10 Sep	Ryanair
09 Sep - 24 Sep	Ryanair
20 Sep - 21 Sep	Ryanair
30 Sep - 12 Oct	Ryanair
28 Sep - 03 Oct	Ryanair
30 Sep - 05 Oct	Ryanair
22 Sep - 04 Oct	Ryanair
28 Sep - 12 Oct	airBaltic
30 Sep - 07 Oct	Lufthansa	direct
22 Sep - 04 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 $154

Return flights