We have prepared for you the list of the cheapest deals for Ryanair flight from London (STN) to Kos (KGS) by the month of departure.
Cheapest flights for August 2025
| Departure date | Cheapest price | |
|---|---|---|
| 21 Aug 2025 | 47 € | Book Now |
| 28 Aug 2025 | 59 € | Book Now |
| 25 Aug 2025 | 65 € | Book Now |
| 18 Aug 2025 | 77 € | Book Now |
| 14 Aug 2025 | 106 € | Book Now |
Cheapest flights for September 2025
| Departure date | Cheapest price | |
|---|---|---|
| 29 Sep 2025 | 40 € | Book Now |
| 22 Sep 2025 | 56 € | Book Now |
| 25 Sep 2025 | 59 € | Book Now |
| 01 Sep 2025 | 62 € | Book Now |
| 15 Sep 2025 | 67 € | Book Now |
Cheapest flights for October 2025
| Departure date | Cheapest price | |
|---|---|---|
| 20 Oct 2025 | 40 € | Book Now |
| 09 Oct 2025 | 56 € | Book Now |
| 23 Oct 2025 | 56 € | Book Now |
| 02 Oct 2025 | 58 € | Book Now |
| 13 Oct 2025 | 58 € | Book Now |
The deals are updated by AirHint regularly. Please keep in mind that the price may go up as tickets are purchased by other travellers. Only the cheapest one-way flights are offered. Book fast to secure these cheap Ryanair prices.
Find us on social media