| Oregon City to Karlovo | 6,035.03 mi (9,712.44 km) |
| Oregon City to Karnobat | 6,076.36 mi (9,778.95 km) |
| Oregon City to Kavarna | 6,048.36 mi (9,733.89 km) |
| Oregon City to Kazanlak | 6,048.08 mi (9,733.44 km) |
| Oregon City to Knezha | 5,966.37 mi (9,601.95 km) |
| Oregon City to Kostinbrod | 5,992.73 mi (9,644.37 km) |
| Oregon City to Kozloduy | 5,941.54 mi (9,561.98 km) |
| Oregon City to Kyustendil | 6,015.72 mi (9,681.37 km) |
| Oregon City to Levski | 5,994.98 mi (9,647.99 km) |
| Oregon City to Lom | 5,929.13 mi (9,542.01 km) |
| Oregon City to Lovech | 6,001.91 mi (9,659.14 km) |
| Oregon City to Lukovit | 5,987.11 mi (9,635.33 km) |
| Oregon City to Lyaskovets | 6,023.03 mi (9,693.13 km) |
| Oregon City to Mezdra | 5,981.16 mi (9,625.75 km) |
| Oregon City to Momchilgrad | 6,117.86 mi (9,845.75 km) |
