| Iona to Devnya | 5,870.60 mi (9,447.81 km) |
| Iona to Dimitrovgrad | 5,827.62 mi (9,378.64 km) |
| Iona to Dobrich | 5,869.02 mi (9,445.28 km) |
| Iona to Dospat | 5,778.14 mi (9,299.02 km) |
| Iona to Dupnitsa | 5,710.30 mi (9,189.83 km) |
| Iona to Elhovo | 5,865.78 mi (9,440.05 km) |
| Iona to Etropole | 5,729.86 mi (9,221.33 km) |
| Iona to Gabrovo | 5,787.00 mi (9,313.27 km) |
| Iona to Gorna Oryahovitsa | 5,793.46 mi (9,323.67 km) |
| Iona to Gotse Delchev | 5,761.63 mi (9,272.44 km) |
| Iona to Harmanli | 5,844.97 mi (9,406.58 km) |
| Iona to Haskovo | 5,830.30 mi (9,382.96 km) |
| Iona to Ihtiman | 5,735.39 mi (9,230.22 km) |
| Iona to Isperih | 5,821.12 mi (9,368.19 km) |
| Iona to Kardzhali | 5,831.52 mi (9,384.93 km) |
