| Ottumwa to Karlovo | 5,458.78 mi (8,785.06 km) |
| Ottumwa to Karnobat | 5,534.01 mi (8,906.13 km) |
| Ottumwa to Kavarna | 5,537.80 mi (8,912.23 km) |
| Ottumwa to Kazanlak | 5,480.67 mi (8,820.29 km) |
| Ottumwa to Knezha | 5,390.68 mi (8,675.47 km) |
| Ottumwa to Kostinbrod | 5,394.47 mi (8,681.57 km) |
| Ottumwa to Kozloduy | 5,364.44 mi (8,633.24 km) |
| Ottumwa to Kyustendil | 5,402.00 mi (8,693.68 km) |
| Ottumwa to Levski | 5,433.54 mi (8,744.43 km) |
| Ottumwa to Lom | 5,345.15 mi (8,602.20 km) |
| Ottumwa to Lovech | 5,430.92 mi (8,740.22 km) |
| Ottumwa to Lukovit | 5,408.58 mi (8,704.27 km) |
| Ottumwa to Lyaskovets | 5,467.02 mi (8,798.31 km) |
| Ottumwa to Mezdra | 5,394.84 mi (8,682.15 km) |
| Ottumwa to Momchilgrad | 5,536.27 mi (8,909.77 km) |
