| Hockley to Nasaud | 1,103.26 mi (1,775.53 km) |
| Hockley to Navodari | 1,378.23 mi (2,218.05 km) |
| Hockley to Negresti-Oas | 1,045.07 mi (1,681.88 km) |
| Hockley to Nehoiu | 1,244.61 mi (2,003.00 km) |
| Hockley to Ocna Mures | 1,107.06 mi (1,781.64 km) |
| Hockley to Odobesti | 1,263.09 mi (2,032.74 km) |
| Hockley to Odorheiu Secuiesc | 1,170.56 mi (1,883.84 km) |
| Hockley to Oltenita | 1,303.76 mi (2,098.21 km) |
| Hockley to Onesti | 1,234.70 mi (1,987.06 km) |
| Hockley to Oradea | 1,003.85 mi (1,615.55 km) |
| Hockley to Orastie | 1,097.03 mi (1,765.49 km) |
| Hockley to Oravita | 1,063.00 mi (1,710.74 km) |
| Hockley to Orsova | 1,104.04 mi (1,776.78 km) |
| Hockley to Otelu Rosu | 1,073.16 mi (1,727.08 km) |
| Hockley to Otopeni | 1,263.00 mi (2,032.60 km) |
