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Je suis allé à Paris via Bruxelles.
I went to Paris via Brussels.
By way of; through the medium or agency of; by means of
Il a voyagé en Europe via le train.
He traveled through Europe by train.
Often used to indicate a route or method of travel or communication.
'Via' is often used to describe a route or method of travel, such as 'via le train' (by train).
From Latin 'via' meaning 'road' or 'way'
In French, 'via' is commonly used to indicate a route or method, similar to its use in English.