AirHint found the following cheapest one-way flights from London (LGW) to Tallinn (TLL) in September 2025 (see full year).

One-Way flights

10 Sep	Ryanair
03 Sep	Ryanair
04 Sep	airBaltic	direct
23 Sep	airBaltic	direct
25 Sep	airBaltic	direct
27 Sep	airBaltic	direct
01 Sep	easyJet
29 Sep	Norwegian Air Sweden AOC
22 Sep	airBaltic
26 Sep	airBaltic

Also check the deals for return flights from London 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 one-way flights from London to Tallinn in September from $86

One-Way flights