What do you call a group of buses?

There isn't a commonly accepted collective noun for a group of buses.

However, here are some creative suggestions:

Informal:

* A fleet of buses (most common)

* A line of buses

* A bunch of buses

* A gaggle of buses (playful)

Humorous:

* A route of buses

* A fare of buses

* A stop of buses

Ultimately, you can use any word that fits the context and sounds right to you!