| Lake Oswego to Nasaud | 5,728.71 mi (9,219.46 km) |
| Lake Oswego to Navodari | 5,992.62 mi (9,644.19 km) |
| Lake Oswego to Negresti-Oas | 5,673.57 mi (9,130.73 km) |
| Lake Oswego to Nehoiu | 5,886.24 mi (9,472.99 km) |
| Lake Oswego to Ocna Mures | 5,775.63 mi (9,294.98 km) |
| Lake Oswego to Odobesti | 5,872.79 mi (9,451.34 km) |
| Lake Oswego to Odorheiu Secuiesc | 5,806.73 mi (9,345.03 km) |
| Lake Oswego to Oltenita | 5,973.72 mi (9,613.78 km) |
| Lake Oswego to Onesti | 5,835.94 mi (9,392.04 km) |
| Lake Oswego to Oradea | 5,695.73 mi (9,166.39 km) |
| Lake Oswego to Orastie | 5,797.54 mi (9,330.24 km) |
| Lake Oswego to Oravita | 5,819.11 mi (9,364.96 km) |
| Lake Oswego to Orsova | 5,853.16 mi (9,419.75 km) |
| Lake Oswego to Otelu Rosu | 5,802.16 mi (9,337.68 km) |
| Lake Oswego to Otopeni | 5,933.74 mi (9,549.44 km) |
