1. Cagliari Airport → Cagliari City (ARST Bus 420 or 820)
- Route: Departs from outside Arrivals (look for ARST signs).
- Destination: Cagliari Central Station (Piazza Matteotti) or Via Roma (city center).
- Frequency: Every 15–30 mins (6:00 AM–11:30 PM).
- Duration: ~10–15 mins.
- Cost: ~€1.30 (buy ticket at airport kiosk or onboard).
2. Cagliari → Costa Rei (ARST Line 103)
- Departure: From Via Roma (near Piazza Matteotti) or Cagliari Central Station.
- Schedule: Limited! Only 2–3 daily departures (e.g., 8:00 AM, 1:30 PM, 5:30 PM). Confirm timetables here.
- Duration: ~1.5–2 hours (direct, no transfers).
- Cost: ~€5 one-way (buy ticket at tobacconists/newsstands or onboard).