Breakdown of L'attesa per il volo è stata lunghissima.
essere
to be
per
for / in order to / because of
lungo
long
il volo
the flight
Questions & Answers about L'attesa per il volo è stata lunghissima.
Why is there an 'h' in lunghissima?
Why does lunghissima end in -a rather than -o?
Adjectives with the -issimo ending still have to match the noun they describe in gender and number. Here, it describes l'attesa (the wait), which is a feminine singular noun, so the absolute superlative must also end in -a.
Why is it è stata and not è stato?
Is attesa a verb in this sentence?
No, here it is used as a noun meaning 'the wait'. You can tell because it has the definite article l' (the) attached to the front of it. It comes from the verb attendere (to wait).