| Huittinen to Opwijk | 997.04 mi (1,604.59 km) |
| Huittinen to Ostend | 1,017.58 mi (1,637.63 km) |
| Huittinen to Oud-Heverlee | 991.55 mi (1,595.74 km) |
| Huittinen to Oud-Turnhout | 956.67 mi (1,539.61 km) |
| Huittinen to Oudenaarde | 1,019.07 mi (1,640.04 km) |
| Huittinen to Oudenburg | 1,017.60 mi (1,637.66 km) |
| Huittinen to Oupeye | 973.26 mi (1,566.31 km) |
| Huittinen to Overijse | 997.81 mi (1,605.82 km) |
| Huittinen to Overpelt | 950.77 mi (1,530.11 km) |
| Huittinen to Paal | 966.93 mi (1,556.12 km) |
| Huittinen to Peer | 954.44 mi (1,536.03 km) |
| Huittinen to Pepinster | 976.86 mi (1,572.10 km) |
| Huittinen to Peruwelz | 1,037.69 mi (1,670.00 km) |
| Huittinen to Perwez | 999.26 mi (1,608.15 km) |
| Huittinen to Philippeville | 1,029.82 mi (1,657.33 km) |
