Here’s the most efficient way to travel from Beijing Daxing International Airport (PKX) to Beijing South Railway Station (北京南站): 1. Subway + Metro (Fastest Option) Route: Daxing Airport Express Line (大兴机场线) → 草桥站 (Caoqiao Station) → Metro Line 10 → 角门西站 (Jiaomenxi Station) → Metro Line 4 → 北京南站 (Beijing South Railway Station). Details: Daxing Airport Express Line: Duration: 19 minutes (non-stop to Caoqiao Station). Frequency: Every 8–10 minutes during peak hours (6:00–23:00). Fares: Standard: ¥35 (one-way). Business Class: ¥50. Payment: Use Alipay/WeChat QR codes (via the "出行" app) or cash. Metro Transfer: At Caoqiao Station, transfer to Line 10 → 5 stops to Jiaomenxi Station (15 minutes). Transfer to Line 4 (southbound) → 1 stop to Beijing South Railway Station (3 minutes). Total Time: ~50–60 minutes. Cost: ¥35 (airport line) + ¥3 (metro) = ¥38. Why It’s Best: Fastest and most reliable option, avoiding traffic congestion. Direct transfers with clear English signage. Alipay/WeChat payments make it convenient for foreign visitors. 2. Airport Shuttle Bus (Direct but Less Flexible) Route: Daxing Airport → Beijing South Railway Station (direct bus). Details: Frequency: Every 30–60 minutes (5:00–23:00). Duration: 50–70 minutes (subject to traffic). Fare: ¥40. Pickup: Terminal 1, Level 1, Door 20. Drop-off: Beijing South Railway Station (south entrance). Note: Check real-time schedules via the "大兴机场官方" app or at the bus counter. Limited luggage space; ideal for light travelers. 3. Taxi/Ride-Hailing (Most Convenient for Groups) Details: Duration: 40–60 minutes (depending on traffic). Fare: Taxi: ~¥200–250 (including tolls). Ride-hailing (e.g., DiDi): ¥180–220. Pickup: Terminal 1, Level 1, Door 4 or 5 (taxi queue). Tips: Insist on using the meter for taxis. Book via DiDi for fixed fares and English-speaking drivers (select “English” in the app).