| Texas City to Octeville | 4,838.97 mi (7,787.56 km) |
| Texas City to Oignies | 5,003.85 mi (8,052.92 km) |
| Texas City to Oissel | 4,959.50 mi (7,981.54 km) |
| Texas City to Olivet | 5,035.77 mi (8,104.30 km) |
| Texas City to Ollioules | 5,354.24 mi (8,616.82 km) |
| Texas City to Olonne-sur-Mer | 4,916.08 mi (7,911.66 km) |
| Texas City to Oloron-Sainte-Marie | 5,062.41 mi (8,147.16 km) |
| Texas City to Onet Village | 5,171.12 mi (8,322.11 km) |
| Texas City to Onnaing | 5,030.30 mi (8,095.48 km) |
| Texas City to Orange | 5,275.81 mi (8,490.60 km) |
| Texas City to Orchies | 5,013.66 mi (8,068.70 km) |
| Texas City to Orleans | 5,034.99 mi (8,103.04 km) |
| Texas City to Orly | 5,030.32 mi (8,095.52 km) |
| Texas City to Ormesson-sur-Marne | 5,035.08 mi (8,103.17 km) |
| Texas City to Orsay | 5,023.20 mi (8,084.06 km) |
