Originally Posted by
stewlevine
Sounds like they told you the countdown is based on arrival. So, since we land on Friday July 2, even though we leave on Thursday July 1; it sounds as though we need to have our test in the US no earlier than Tuesday June 29.
For UK arrivals, the test should be taken within the 3 days prior to
departure of your sector to the UK - if your direct flight departs the US on Thursday, your COVID test can be taken from Monday notwithstanding your flight only arrives in the UK on the Friday.