UK Passenger Locator Form

fifeken

onashoestring said:

For some having the peace of mind of having a printed copy in case you phone battery goes flat is reassuring.
This was particularly important when there were long (4 hours +) queues at airports last year - however from my experience, I don’t think this it is an issue recently.

Agred, printed as main copy and electronic as backup every time.  Watching check-in queues shows you producing and checking paper copies is usually much more efficient, and the check-in queue has got to be one of the worst parts of any journey.