| Tournai to Navodari | 1,248.34 mi (2,009.01 km) |
| Tournai to Negresti-Oas | 920.42 mi (1,481.28 km) |
| Tournai to Nehoiu | 1,114.97 mi (1,794.38 km) |
| Tournai to Ocna Mures | 977.85 mi (1,573.70 km) |
| Tournai to Odobesti | 1,135.23 mi (1,826.98 km) |
| Tournai to Odorheiu Secuiesc | 1,042.54 mi (1,677.80 km) |
| Tournai to Oltenita | 1,171.69 mi (1,885.65 km) |
| Tournai to Onesti | 1,107.94 mi (1,783.06 km) |
| Tournai to Oradea | 874.81 mi (1,407.87 km) |
| Tournai to Orastie | 965.73 mi (1,554.19 km) |
| Tournai to Oravita | 928.63 mi (1,494.49 km) |
| Tournai to Orsova | 969.67 mi (1,560.53 km) |
| Tournai to Otelu Rosu | 940.31 mi (1,513.28 km) |
| Tournai to Otopeni | 1,131.35 mi (1,820.74 km) |
| Tournai to Ovidiu | 1,247.78 mi (2,008.10 km) |
