| Santa Ursula to Oerlinghausen | 2,077.98 mi (3,344.18 km) |
| Santa Ursula to Oestrich-Winkel | 1,967.02 mi (3,165.61 km) |
| Santa Ursula to Offenburg | 1,897.94 mi (3,054.44 km) |
| Santa Ursula to Oftersheim | 1,959.78 mi (3,153.96 km) |
| Santa Ursula to Ohrdruf | 2,096.71 mi (3,374.32 km) |
| Santa Ursula to Ohringen | 1,985.32 mi (3,195.07 km) |
| Santa Ursula to Olbernhau | 2,183.05 mi (3,513.27 km) |
| Santa Ursula to Olching | 2,014.18 mi (3,241.50 km) |
| Santa Ursula to Oldenburg | 2,119.32 mi (3,410.72 km) |
| Santa Ursula to Oldenburg in Holstein | 2,253.70 mi (3,626.97 km) |
| Santa Ursula to Olfen | 2,025.94 mi (3,260.44 km) |
| Santa Ursula to Olpe | 2,007.52 mi (3,230.79 km) |
| Santa Ursula to Olsberg | 2,043.86 mi (3,289.28 km) |
| Santa Ursula to Oranienburg | 2,262.07 mi (3,640.45 km) |
| Santa Ursula to Ortenberg | 2,018.68 mi (3,248.75 km) |
