Seattle to Melbourne (SEA–MEL) — Airlines, Schedules & Connections

US passport holders must obtain an Electronic Travel Authority (ETA) before boarding. Apply through the Australian ETA app (subclass 601). The ETA costs AUD 20, is valid for 12 months with multiple entries, and allows stays of up to 90 days per visit. Processing is usually instant. Passport must be valid for at least 6 months beyond the date of entry.

Link Light Rail runs from downtown Seattle (Westlake station) to the airport in 38 minutes ($3.50 peak). Trains run every 6–12 minutes during peak hours from 5am to 1am. Ride-shares run $30–50 from downtown; SR-99 and I-5 can be heavily congested southbound during afternoon rush (3–7pm).

Sound Transit 574 express bus serves Tacoma ($2.50–4). Sounder commuter rail connects Tacoma to the airport area via a shuttle.

SkyBus runs to Southern Cross Station in 30–40 minutes (AUD $22–24), operating 24/7. Tickets can be bought on the bus, app, or counter in arrivals. Suburban stops are available on selected services.Taxis from the rank cost AUD $55–75 to the CBD (30–40 min, more in traffic). Uber: AUD $35–55. Rental car desks are in the terminal; the off-airport option (cheaper) requires a shuttle. No suburban train exists yet; the airport is not on Melbourne's rail network. Myki transit cards do not cover MEL.

Melbourne's weather is famously variable. "Four seasons in one day" is a local cliché with real operational meaning. The city sits on Port Phillip Bay in a temperate zone. Summer (December–February) averages 25–30°C but can spike above 40°C during northerly heat events. These extreme heat days occasionally cause ground crew restrictions.

Winter (June–August) is cool at 7–14°C with rain and low cloud. Fog-related delays are occasional but not severe. Thunderstorms are most common October through March. Pack layers year-round. The weather changes rapidly. Disruption risk is low by global standards.