| Moss Bluff to Orbetello | 5,494.44 mi (8,842.45 km) |
| Moss Bluff to Oria | 5,845.08 mi (9,406.75 km) |
| Moss Bluff to Oristano | 5,468.45 mi (8,800.62 km) |
| Moss Bluff to Orta Nova | 5,730.01 mi (9,221.55 km) |
| Moss Bluff to Orte | 5,544.36 mi (8,922.78 km) |
| Moss Bluff to Ortona | 5,634.61 mi (9,068.03 km) |
| Moss Bluff to Orvieto | 5,522.97 mi (8,888.36 km) |
| Moss Bluff to Orzinuovi | 5,334.26 mi (8,584.67 km) |
| Moss Bluff to Osimo | 5,552.82 mi (8,936.40 km) |
| Moss Bluff to Ospitaletto | 5,334.67 mi (8,585.32 km) |
| Moss Bluff to Ostuni | 5,833.52 mi (9,388.14 km) |
| Moss Bluff to Ottaviano | 5,695.61 mi (9,166.20 km) |
| Moss Bluff to Ovada | 5,306.26 mi (8,539.61 km) |
| Moss Bluff to Ozieri | 5,463.18 mi (8,792.14 km) |
| Moss Bluff to Paceco | 5,719.19 mi (9,204.15 km) |
