Just a little heads up about taxes when checking in at SCL on a xONEx: normally it is no big deal and nobody blinks an eyelid, but today is the second time it happens to me that the AA agent does not find the SCL tax (ZQ, I think) in my paper ticket (pretty much illegible anyway). Fortunately, in both cases I had with me a tax sheet AA printed separately, so in the end I didn't have to double pay the tax (it took some talking though). So, when flying out of SCL it pays, I think, to have some tax sheet proving the tax has been paid.