| Olean to Devnya | 4,971.28 mi (8,000.50 km) |
| Olean to Dimitrovgrad | 4,948.73 mi (7,964.21 km) |
| Olean to Dobrich | 4,965.32 mi (7,990.91 km) |
| Olean to Dospat | 4,910.39 mi (7,902.51 km) |
| Olean to Dupnitsa | 4,841.81 mi (7,792.14 km) |
| Olean to Elhovo | 4,980.92 mi (8,016.02 km) |
| Olean to Etropole | 4,851.48 mi (7,807.70 km) |
| Olean to Gabrovo | 4,901.76 mi (7,888.62 km) |
| Olean to Gorna Oryahovitsa | 4,903.95 mi (7,892.15 km) |
| Olean to Gotse Delchev | 4,896.92 mi (7,880.82 km) |
| Olean to Harmanli | 4,965.67 mi (7,991.47 km) |
| Olean to Haskovo | 4,952.69 mi (7,970.58 km) |
| Olean to Ihtiman | 4,861.74 mi (7,824.21 km) |
| Olean to Isperih | 4,920.85 mi (7,919.35 km) |
| Olean to Kardzhali | 4,957.62 mi (7,978.52 km) |
