| South San Francisco to Nasaud | 6,221.22 mi (10,012.09 km) |
| South San Francisco to Navodari | 6,490.76 mi (10,445.87 km) |
| South San Francisco to Negresti-Oas | 6,164.74 mi (9,921.19 km) |
| South San Francisco to Nehoiu | 6,380.35 mi (10,268.19 km) |
| South San Francisco to Ocna Mures | 6,265.48 mi (10,083.32 km) |
| South San Francisco to Odobesti | 6,369.24 mi (10,250.30 km) |
| South San Francisco to Odorheiu Secuiesc | 6,299.87 mi (10,138.67 km) |
| South San Francisco to Oltenita | 6,466.85 mi (10,407.38 km) |
| South San Francisco to Onesti | 6,332.38 mi (10,190.98 km) |
| South San Francisco to Oradea | 6,182.03 mi (9,949.02 km) |
| South San Francisco to Orastie | 6,284.91 mi (10,114.59 km) |
| South San Francisco to Oravita | 6,301.24 mi (10,140.87 km) |
| South San Francisco to Orsova | 6,336.58 mi (10,197.74 km) |
| South San Francisco to Otelu Rosu | 6,286.85 mi (10,117.71 km) |
| South San Francisco to Otopeni | 6,426.15 mi (10,341.89 km) |
