| Helsinki to Novi di Modena | 1,203.55 mi (1,936.93 km) |
| Helsinki to Novi Ligure | 1,255.88 mi (2,021.14 km) |
| Helsinki to Nuoro | 1,526.40 mi (2,456.51 km) |
| Helsinki to Occhiobello | 1,188.59 mi (1,912.85 km) |
| Helsinki to Oderzo | 1,116.72 mi (1,797.19 km) |
| Helsinki to Oggiono | 1,180.33 mi (1,899.56 km) |
| Helsinki to Olbia | 1,484.57 mi (2,389.18 km) |
| Helsinki to Oleggio | 1,207.49 mi (1,943.27 km) |
| Helsinki to Olgiate Comasco | 1,188.81 mi (1,913.20 km) |
| Helsinki to Olgiate Olona | 1,199.86 mi (1,930.98 km) |
| Helsinki to Omegna | 1,195.67 mi (1,924.24 km) |
| Helsinki to Opera | 1,207.90 mi (1,943.93 km) |
| Helsinki to Oppeano | 1,172.29 mi (1,886.62 km) |
| Helsinki to Orbassano | 1,268.64 mi (2,041.68 km) |
| Helsinki to Orbetello | 1,354.76 mi (2,180.27 km) |
