Happened a few times before as well. The last one I know of was 2 years ago, found in Donegal, Ireland and eventually flown to the Canary Islands.

(source: https://www.irishtimes.com/life-and-style/travel/europe/aer-lingus-to-fly-endangered-turtle-washed-up-on-irish-beach-to-the-canary-islands-1.4674614)