| Klamath Falls to Noventa Vicentina | 5,741.87 mi (9,240.65 km) |
| Klamath Falls to Novi di Modena | 5,747.62 mi (9,249.90 km) |
| Klamath Falls to Novi Ligure | 5,697.47 mi (9,169.19 km) |
| Klamath Falls to Nuoro | 5,966.82 mi (9,602.67 km) |
| Klamath Falls to Occhiobello | 5,764.13 mi (9,276.47 km) |
| Klamath Falls to Oderzo | 5,737.92 mi (9,234.28 km) |
| Klamath Falls to Oggiono | 5,654.63 mi (9,100.25 km) |
| Klamath Falls to Olbia | 5,937.32 mi (9,555.19 km) |
| Klamath Falls to Oleggio | 5,645.47 mi (9,085.50 km) |
| Klamath Falls to Olgiate Comasco | 5,644.19 mi (9,083.45 km) |
| Klamath Falls to Olgiate Olona | 5,650.45 mi (9,093.51 km) |
| Klamath Falls to Omegna | 5,623.46 mi (9,050.08 km) |
| Klamath Falls to Opera | 5,673.82 mi (9,131.14 km) |
| Klamath Falls to Oppeano | 5,731.64 mi (9,224.18 km) |
| Klamath Falls to Orbassano | 5,648.38 mi (9,090.19 km) |
