| Millbrae to Oerlinghausen | 5,582.75 mi (8,984.57 km) |
| Millbrae to Oestrich-Winkel | 5,673.13 mi (9,130.01 km) |
| Millbrae to Offenburg | 5,755.36 mi (9,262.35 km) |
| Millbrae to Oftersheim | 5,723.56 mi (9,211.18 km) |
| Millbrae to Ohrdruf | 5,698.94 mi (9,171.56 km) |
| Millbrae to Ohringen | 5,757.68 mi (9,266.09 km) |
| Millbrae to Olbernhau | 5,772.90 mi (9,290.58 km) |
| Millbrae to Olching | 5,862.16 mi (9,434.23 km) |
| Millbrae to Oldenburg | 5,506.62 mi (8,862.05 km) |
| Millbrae to Oldenburg in Holstein | 5,508.00 mi (8,864.28 km) |
| Millbrae to Olfen | 5,562.94 mi (8,952.68 km) |
| Millbrae to Olpe | 5,613.02 mi (9,033.28 km) |
| Millbrae to Olsberg | 5,611.90 mi (9,031.48 km) |
| Millbrae to Oranienburg | 5,650.90 mi (9,094.24 km) |
| Millbrae to Ortenberg | 5,681.75 mi (9,143.89 km) |
