| Idaho Falls to Devnya | 5,946.73 mi (9,570.34 km) |
| Idaho Falls to Dimitrovgrad | 5,969.37 mi (9,606.77 km) |
| Idaho Falls to Dobrich | 5,931.68 mi (9,546.12 km) |
| Idaho Falls to Dospat | 5,956.73 mi (9,586.43 km) |
| Idaho Falls to Dupnitsa | 5,892.76 mi (9,483.48 km) |
| Idaho Falls to Elhovo | 5,986.36 mi (9,634.12 km) |
| Idaho Falls to Etropole | 5,881.83 mi (9,465.89 km) |
| Idaho Falls to Gabrovo | 5,913.54 mi (9,516.93 km) |
| Idaho Falls to Gorna Oryahovitsa | 5,906.60 mi (9,505.75 km) |
| Idaho Falls to Gotse Delchev | 5,950.38 mi (9,576.21 km) |
| Idaho Falls to Harmanli | 5,983.93 mi (9,630.20 km) |
| Idaho Falls to Haskovo | 5,975.56 mi (9,616.74 km) |
| Idaho Falls to Ihtiman | 5,900.69 mi (9,496.25 km) |
| Idaho Falls to Isperih | 5,898.86 mi (9,493.30 km) |
| Idaho Falls to Kardzhali | 5,987.55 mi (9,636.04 km) |
