Нам стало ясно, что мы опоздали, ко

Нам стало ясно, что мы опоздали, когда объявили о том, что на наш рейс посадка окончена.

Результаты (английский) 1:

It has become clear to us that we are late, when announced that on our flight landing is over.

Результаты (английский) 2:

It became clear that we were late, when it was announced that our flight landing over.

Результаты (английский) 3:

it has become clear to us that we're too late, when announced that our flight boarding is finished.