| Isabela to Oberkirch | 4,592.87 mi (7,391.51 km) |
| Isabela to Obernburg am Main | 4,637.75 mi (7,463.74 km) |
| Isabela to Obernkirchen | 4,632.56 mi (7,455.38 km) |
| Isabela to Oberschleissheim | 4,753.49 mi (7,650.01 km) |
| Isabela to Oberstdorf | 4,698.06 mi (7,560.80 km) |
| Isabela to Obertraubling | 4,776.98 mi (7,687.80 km) |
| Isabela to Obertshausen | 4,623.57 mi (7,440.92 km) |
| Isabela to Oberursel | 4,611.98 mi (7,422.26 km) |
| Isabela to Ochsenfurt | 4,679.56 mi (7,531.03 km) |
| Isabela to Ochsenhausen | 4,679.89 mi (7,531.55 km) |
| Isabela to Ochtrup | 4,551.01 mi (7,324.14 km) |
| Isabela to Odenthal | 4,547.35 mi (7,318.25 km) |
| Isabela to Oelde | 4,591.76 mi (7,389.72 km) |
| Isabela to Oelsnitz | 4,769.50 mi (7,675.77 km) |
| Isabela to Oer-Erkenschwick | 4,553.29 mi (7,327.81 km) |
