Flight Time from San Francisco (SFO) to Perth (PER)

Non-stop, the SFO–PER sector prices out at 18.01 hours — 14,744 km at 850 km/h plus 40 minutes of taxi, climb and approach. One connection is the realistic worst case for most calendars: expect the total to land near 20.5 hours with a single well-chosen hub, and near 25.5 hours with two.

Past the 9,000 km mark this is an ultra-long-haul sector: the 18.01 hours in the air plus cabin time makes a one-stop routing with a lounge stop worth pricing against the non-stop. Factor the 16-hour shift into recovery plans: eastbound arrivals at Perth generally bite harder than westbound ones.

If fares into PER spike, the airports tabulated below are the first places to check; each row shows the distance back to Perth and the flight time from San Francisco. That leaves SFO → PER as the only sensible air routing, which concentrates fare power in a single search.

None of these nearby fields has a paired calculator page from SFO yet, so use the distance and time columns to estimate any rerouting yourself. Remember the destination is the point: any airport below that adds more than a couple of hours of surface time to reach Perth needs a substantial fare gap to justify.

Leave San Francisco at 10:00 and the local arrival clock in Perth reads about 20:01, which tells you whether day one is recoverable. Daily spend shifts at landing: $192 in Perth against $311 at home in San Francisco, using the dataset's mid-range figures.

On those numbers Perth is the cheaper place to linger — the gap is $119 per day, which over a week funds a second flight. With 16 hours gained eastbound, the 14,744 km out to Perth ends in a serious jet-lag bill — plan a quiet first day.