Denver to Australia: No Direct Route, ~7,500 Miles Across the Pacific

Transpacific Journey Planning

There are no nonstop flights from Denver (DEN) to any Australian airport. The great-circle distance is approximately 7,500 miles (12,000 km).

Routing	Common Hubs	Total Time
DEN → West Coast → SYD/MEL/BNE	LAX, SFO, SEA	18–22 hrs
DEN → Asia Hub → Australia	DFW (AA/QF), IAH (UA), ORD, Tokyo (NH/JL), Seoul (KE), Singapore (SQ)	20–26 hrs
DEN → East Coast → Middle East → Australia	JFK/EWR → DXB/DOH/AUH	24–30 hrs

Time zones: Denver (MT, UTC-7/-6) → Australia (AEST/AEDT, UTC+10/+11) = 17–18 hr ahead. Lose a day eastbound.
Visa: ETA (subclass 601) or eVisitor for US citizens.
Season: Peak Dec–Feb (Aussie summer); shoulder Sep–Nov, Mar–May better value.
Frequent flyer: Star Alliance (UA → NZ/VA), Oneworld (AA → QF), SkyTeam (DL → VA).

Fly DEN → LAX/SFO/SEA separately (cheap, frequent), then long-haul. Can save $ but adds risk (separate tickets = no protection if misconnect).

Bottom line: It's a haul. Book lie-flat business if possible; hydrate, move, adjust sleep pre-flight.

Canada