Route notes
Why this routing works
This routing builds a long multi-stop arc from Cairns through Perth and Dublin to the USA, then returns to Cairns after a second San Francisco stop. The sequence keeps the trip moving in one direction across three countries, with the outbound path broken into manageable stays before the longest stop in Aspen.
San Francisco works as the gateway on both sides of Aspen, creating a simple domestic turn within the broader international ticket. That setup avoids forcing a direct return from Aspen to Australia and instead reconnects the itinerary through the same long-haul hub used on arrival in the United States.
Timing is spread across 25 weeks, with 10 nights in Perth, 16 in Dublin, 6 in San Francisco, 137 in Aspen, and 4 more nights in San Francisco before the final leg to Cairns. In economy, that kind of pacing suits a trip built around one extended stay supported by shorter stopovers at either end.