What is CityFlyer Express?

A UK based friend is flying soon to Europe on something called "CityFlyer Express" on a cheap £91 round trip ticket.

She says it has a flight nuimber of BA 8191 ... so maybe the BA prefix means it is a British Airways "Shuttle" type flight?

My question is, I owe her a favour. If it is a BA flight, and if these planes have a business class cabin, I'd like to use my points to upgrade her seats as a surprise.

Does anyone know this airline, and whether it has a business class, and whether BA points (or QF points) can be used to upgrade it? One of the British FT'ers might be able to assist?


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~ Glen ~