people working at Heathrow, people who collected people at Heathrow, people who have been using Flightradar to see what’s happening- it’s reported everywhere. Although clearly it’s being ‘hushed’ as well. Take a look- there are plenty of sources.
If you’re still in doubt check Heathrow & Gatwick live arrivals. It’s very enlightening/ bewildering.
we have flights in from Rome, New York, Zurich etc and that’s on a Sunday night. So you want to take the dog for a walk? Get back inside. You want to fly in from the new coronavirus epicentre and head off on a train/ bus/ taxi into London? Step this way my friend.
Arrivals | Heathrow