| Kirkwall to Devnya | 1,689.23 mi (2,718.55 km) |
| Kirkwall to Dimitrovgrad | 1,691.53 mi (2,722.25 km) |
| Kirkwall to Dobrich | 1,679.11 mi (2,702.26 km) |
| Kirkwall to Dospat | 1,670.87 mi (2,689.00 km) |
| Kirkwall to Dupnitsa | 1,605.16 mi (2,583.25 km) |
| Kirkwall to Elhovo | 1,714.80 mi (2,759.70 km) |
| Kirkwall to Etropole | 1,599.51 mi (2,574.17 km) |
| Kirkwall to Gabrovo | 1,638.25 mi (2,636.51 km) |
| Kirkwall to Gorna Oryahovitsa | 1,635.01 mi (2,631.30 km) |
| Kirkwall to Gotse Delchev | 1,662.82 mi (2,676.04 km) |
| Kirkwall to Harmanli | 1,707.17 mi (2,747.43 km) |
| Kirkwall to Haskovo | 1,697.00 mi (2,731.06 km) |
| Kirkwall to Ihtiman | 1,616.11 mi (2,600.87 km) |
| Kirkwall to Isperih | 1,639.19 mi (2,638.03 km) |
| Kirkwall to Kardzhali | 1,706.76 mi (2,746.77 km) |
