| Sunnyvale to Oerlinghausen | 5,586.15 mi (8,990.04 km) |
| Sunnyvale to Oestrich-Winkel | 5,675.84 mi (9,134.38 km) |
| Sunnyvale to Offenburg | 5,757.64 mi (9,266.02 km) |
| Sunnyvale to Oftersheim | 5,726.24 mi (9,215.49 km) |
| Sunnyvale to Ohrdruf | 5,702.50 mi (9,177.28 km) |
| Sunnyvale to Ohringen | 5,760.53 mi (9,270.67 km) |
| Sunnyvale to Olbernhau | 5,777.01 mi (9,297.20 km) |
| Sunnyvale to Olching | 5,865.17 mi (9,439.08 km) |
| Sunnyvale to Oldenburg | 5,510.24 mi (8,867.88 km) |
| Sunnyvale to Oldenburg in Holstein | 5,512.50 mi (8,871.51 km) |
| Sunnyvale to Olfen | 5,565.99 mi (8,957.59 km) |
| Sunnyvale to Olpe | 5,615.97 mi (9,038.04 km) |
| Sunnyvale to Olsberg | 5,615.09 mi (9,036.61 km) |
| Sunnyvale to Oranienburg | 5,655.51 mi (9,101.66 km) |
| Sunnyvale to Ortenberg | 5,684.80 mi (9,148.80 km) |
