In Europe, to refer to the English language, they'll show a British flag and any recordings in English will be with a British accent.
In Asia, in pre-recorded messages, it's a mixed bag — sometimes American accent, sometimes British.
On the plane today in Shanghai China Southern Air played English instructions in one of the huskiest American accents I've ever heard. The kind I'd expect to hear from someone just in from hunting and ready to sink his teeth into some deer.
Startlingly reassuring, I must say. Eloquent in a way that's totally un-British!