| Olton to Devnya | 1,490.38 mi (2,398.53 km) |
| Olton to Dimitrovgrad | 1,459.50 mi (2,348.84 km) |
| Olton to Dobrich | 1,487.39 mi (2,393.73 km) |
| Olton to Dospat | 1,420.37 mi (2,285.86 km) |
| Olton to Dupnitsa | 1,351.81 mi (2,175.52 km) |
| Olton to Elhovo | 1,493.26 mi (2,403.17 km) |
| Olton to Etropole | 1,361.96 mi (2,191.87 km) |
| Olton to Gabrovo | 1,413.99 mi (2,275.59 km) |
| Olton to Gorna Oryahovitsa | 1,417.73 mi (2,281.62 km) |
| Olton to Gotse Delchev | 1,407.16 mi (2,264.60 km) |
| Olton to Harmanli | 1,476.55 mi (2,376.28 km) |
| Olton to Haskovo | 1,463.24 mi (2,354.86 km) |
| Olton to Ihtiman | 1,371.74 mi (2,207.59 km) |
| Olton to Isperih | 1,440.41 mi (2,318.12 km) |
| Olton to Kardzhali | 1,467.73 mi (2,362.08 km) |
