I used: are you travelling a lot? which I believe is a fair translation. As an Australian I just wouldn't say 'you all' - it is an Americanism ergo not correct English, at least outside the USA.
I could also use 'very much' as carli1195 stated below, rather than 'a lot'.
'A lot' is more American................regrettably the sad American influence on Australian English. But definitely NO 'you all'.
I answered 'are you travelling much?' which is perfectly correct English when addressing two or more people. As an Australian I object to the enforced usage of Americanisms such as 'you all' on speakers of the Queen's English! Using 'a lot' in this instance is also not the only acceptable answer: 'much' is a better alternative.