| The Dalles to Noventa Vicentina | 5,526.71 mi (8,894.39 km) |
| The Dalles to Novi di Modena | 5,533.47 mi (8,905.26 km) |
| The Dalles to Novi Ligure | 5,485.70 mi (8,828.38 km) |
| The Dalles to Nuoro | 5,759.05 mi (9,268.29 km) |
| The Dalles to Occhiobello | 5,549.25 mi (8,930.66 km) |
| The Dalles to Oderzo | 5,521.36 mi (8,885.78 km) |
| The Dalles to Oggiono | 5,441.24 mi (8,756.83 km) |
| The Dalles to Olbia | 5,728.70 mi (9,219.46 km) |
| The Dalles to Oleggio | 5,433.00 mi (8,743.57 km) |
| The Dalles to Olgiate Comasco | 5,431.20 mi (8,740.67 km) |
| The Dalles to Olgiate Olona | 5,437.68 mi (8,751.11 km) |
| The Dalles to Omegna | 5,410.95 mi (8,708.08 km) |
| The Dalles to Opera | 5,460.96 mi (8,788.57 km) |
| The Dalles to Oppeano | 5,516.82 mi (8,878.47 km) |
| The Dalles to Orbassano | 5,437.70 mi (8,751.14 km) |
