This is the 6063rd most frequent German word.
corendon
"Corendon" is not a German word. It may refer to a name or brand.
In this sentence, 'Corendon' is used to refer to the company providing travel booking services.
Wir haben unseren Urlaub mit Corendon gebucht.
We booked our vacation with Corendon.
Here, 'Corendon' acts as an adjective describing the flights operated by the Corendon company.
Die Corendon-Flüge sind meistens zuverlässig.
Corendon flights are mostly reliable.
The word 'Corendon' here serves as the proper noun name of a company.