AirHint found the following cheapest one-way flights from Riga (RIX) to London (STN) in September 2025 (see full year).

One-Way flights

25 Sep	Ryanair	direct
30 Sep	Ryanair	direct
27 Sep	Ryanair	direct
24 Sep	Norwegian Air Sweden AOC
22 Sep	Ryanair	direct
20 Sep	Ryanair
21 Sep	Ryanair	direct
13 Sep	Ryanair
26 Sep	Ryanair	direct
17 Sep	Ryanair

Also check the deals for return flights from Riga to London 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.

Book a cheap hotel in London

Cheap car rent in London

Cheapest one-way flights from Riga to London in September from $45

One-Way flights