And there is no logical reason why it should be so, and not the other way round, which is why it is confusing (as with 12 a.m. and p.m. to denote noon or midnight). It is by convention only that in a round trip the origin is taken as vantage point to define which flight is in- and outbound. If the convention had taken the perspective of the destination (i.e. where the round trip goes to and returns from), it would be the other way round. (On a return/round trip from London to Dublin, the flight from London to Dublin is both going out of London and in to Dublin, and the return is going out of Dublin and in to London, so it is not clear which one should be considered in- and which outbound, if one does not know the convention. I personally would be inclined to consider the destination -- where it is I am taking a trip to -- as more important, and hence the flight there as inbound, and the flight back as outbound, but that's not how it works in common usage -- it's the other way round)., I think the most useful way to consider this, for someone who has booked a return flight from A to B (and back), is that the first flight, going from A to B, is the outbound, and the flight returning from B to A is the inbound (which leaves out the confusing bit about a speaker's location; you could be in Paris and book a return flight from Sidney to Hong Kong, and the fact you are in Paris , Another 'factor' outside of Etsy's control for the most part the new rules for the EU, tariff codes, packaging, USPS limiting shipping to Australia (perhaps some buyer confusion about getting their orders from Australia) it all impacts on sales..