| Tromso to Navodari | 1,784.67 mi (2,872.15 km) |
| Tromso to Negresti-Oas | 1,514.73 mi (2,437.72 km) |
| Tromso to Nehoiu | 1,700.25 mi (2,736.28 km) |
| Tromso to Ocna Mures | 1,618.18 mi (2,604.21 km) |
| Tromso to Odobesti | 1,676.02 mi (2,697.29 km) |
| Tromso to Odorheiu Secuiesc | 1,629.30 mi (2,622.10 km) |
| Tromso to Oltenita | 1,788.98 mi (2,879.09 km) |
| Tromso to Onesti | 1,640.58 mi (2,640.26 km) |
| Tromso to Oradea | 1,565.53 mi (2,519.47 km) |
| Tromso to Orastie | 1,653.21 mi (2,660.59 km) |
| Tromso to Oravita | 1,705.30 mi (2,744.41 km) |
| Tromso to Orsova | 1,728.59 mi (2,781.90 km) |
| Tromso to Otelu Rosu | 1,673.75 mi (2,693.63 km) |
| Tromso to Otopeni | 1,754.24 mi (2,823.18 km) |
| Tromso to Ovidiu | 1,787.82 mi (2,877.21 km) |
