Ryanair does not provide airside transit in the UK, therefore, passengers willing to transit in the UK need an ETA, as they are required to clear passport control.
Landside transit
Yes, you do need an ETA You must have an ETA if your connection requires you to enter the UK, meaning you will go through passport control. This includes situations like:
- Collecting and re‑checking luggage
- Overnight layovers
- Switching airports
- Leaving the secure area for any reason