I wouldn't quite draw that conclusion yet from the announcement, but - as a UK resident - I can't recall another example where all flights into the country from a particular destination have been stopped. We do tend to act with caution here compared to many other countries, but nonetheless this action might well be described as unprecedented.

The official announcement from the UK Foreign & Commonwealth Office/Prime Minister's Office/Department for Transport is a little more balanced: https://www.gov.uk/government/news/s...harm-el-sheikh