| Ponta Delgada to Oerlinghausen | 1,922.11 mi (3,093.34 km) |
| Ponta Delgada to Oestrich-Winkel | 1,857.52 mi (2,989.40 km) |
| Ponta Delgada to Offenburg | 1,831.25 mi (2,947.11 km) |
| Ponta Delgada to Oftersheim | 1,872.99 mi (3,014.28 km) |
| Ponta Delgada to Ohrdruf | 1,987.87 mi (3,199.17 km) |
| Ponta Delgada to Ohringen | 1,910.98 mi (3,075.43 km) |
| Ponta Delgada to Olbernhau | 2,097.12 mi (3,374.99 km) |
| Ponta Delgada to Olching | 1,981.56 mi (3,189.01 km) |
| Ponta Delgada to Oldenburg | 1,929.76 mi (3,105.65 km) |
| Ponta Delgada to Oldenburg in Holstein | 2,059.07 mi (3,313.76 km) |
| Ponta Delgada to Olfen | 1,864.67 mi (3,000.89 km) |
| Ponta Delgada to Olpe | 1,868.91 mi (3,007.72 km) |
| Ponta Delgada to Olsberg | 1,902.38 mi (3,061.58 km) |
| Ponta Delgada to Oranienburg | 2,122.44 mi (3,415.73 km) |
| Ponta Delgada to Ortenberg | 1,908.77 mi (3,071.86 km) |
