For London Heathrow, this is subject to availability, providing you have arrived at least 3 hours before your scheduled time of departure you can still book a last minute appointment

For our other testing locations tests must be booked in advance online and you must be in receipt of an email confirmation for your booking before arriving at these testing centres. 

Tests can be booked at 

We are currently experiencing extremely high demand for pre departure LAMP tests.  We continue our best endeavours to deliver test results within our estimated 90 - 120 minute timeframe however, where possible we strongly recommend that passengers book a test the day prior to travelling to prevent any unavoidable delay. Normal T & C’s apply.