Distance from San Francisco to Kandahar, Afghanistan: ~7,500 Miles Straight Line, 18.5 Hours by Air

Straight-line (great-circle) distance: ~7,500 miles (12,000 km).

Fastest air route: SFO → (layover, e.g., Dubai, Doha, Istanbul) → Kabul (HKIA) → Kandahar (KDH).

• Total travel time: ~18.5 hours including layovers.
• No direct flights exist between SFO and Kandahar.

Overland travel is impractical due to distance, borders, and conflict zones.