| Fort Wayne to Nuth | 4,138.08 mi (6,659.59 km) |
| Fort Wayne to Oegstgeest | 4,042.71 mi (6,506.11 km) |
| Fort Wayne to Oirschot | 4,096.42 mi (6,592.55 km) |
| Fort Wayne to Oisterwijk | 4,089.89 mi (6,582.04 km) |
| Fort Wayne to Oldebroek | 4,087.30 mi (6,577.88 km) |
| Fort Wayne to Oldenzaal | 4,129.88 mi (6,646.40 km) |
| Fort Wayne to Ommen | 4,104.14 mi (6,604.97 km) |
| Fort Wayne to Oosterend | 4,075.14 mi (6,558.31 km) |
| Fort Wayne to Oosterhout | 4,074.98 mi (6,558.05 km) |
| Fort Wayne to Oosterwolde | 4,083.80 mi (6,572.25 km) |
| Fort Wayne to Oostzaan | 4,050.15 mi (6,518.09 km) |
| Fort Wayne to Opmeer | 4,043.99 mi (6,508.17 km) |
| Fort Wayne to Oss | 4,095.70 mi (6,591.39 km) |
| Fort Wayne to Oud-Beijerland | 4,052.08 mi (6,521.19 km) |
| Fort Wayne to Oudenbosch | 4,064.17 mi (6,540.65 km) |
