| Naugatuck to Orbetello | 4,135.10 mi (6,654.81 km) |
| Naugatuck to Oria | 4,487.50 mi (7,221.94 km) |
| Naugatuck to Oristano | 4,106.59 mi (6,608.92 km) |
| Naugatuck to Orta Nova | 4,372.17 mi (7,036.32 km) |
| Naugatuck to Orte | 4,185.80 mi (6,736.39 km) |
| Naugatuck to Ortona | 4,277.40 mi (6,883.81 km) |
| Naugatuck to Orvieto | 4,164.61 mi (6,702.29 km) |
| Naugatuck to Orzinuovi | 3,979.26 mi (6,404.01 km) |
| Naugatuck to Osimo | 4,196.94 mi (6,754.32 km) |
| Naugatuck to Ospitaletto | 3,980.15 mi (6,405.44 km) |
| Naugatuck to Ostuni | 4,476.28 mi (7,203.88 km) |
| Naugatuck to Ottaviano | 4,336.20 mi (6,978.45 km) |
| Naugatuck to Ovada | 3,948.68 mi (6,354.79 km) |
| Naugatuck to Ozieri | 4,101.47 mi (6,600.68 km) |
| Naugatuck to Paceco | 4,357.34 mi (7,012.45 km) |
