| Ithaca to Popovo | 4,824.12 mi (7,763.68 km) |
| Ithaca to Provadia | 4,877.64 mi (7,849.80 km) |
| Ithaca to Radnevo | 4,859.11 mi (7,819.98 km) |
| Ithaca to Radomir | 4,730.41 mi (7,612.86 km) |
| Ithaca to Rakitovo | 4,800.10 mi (7,725.01 km) |
| Ithaca to Rakovski | 4,821.64 mi (7,759.67 km) |
| Ithaca to Razgrad | 4,826.88 mi (7,768.12 km) |
| Ithaca to Razlog | 4,779.86 mi (7,692.44 km) |
| Ithaca to Ruse | 4,792.46 mi (7,712.72 km) |
| Ithaca to Samokov | 4,763.70 mi (7,666.43 km) |
| Ithaca to Sandanski | 4,786.16 mi (7,702.58 km) |
| Ithaca to Sevlievo | 4,795.02 mi (7,716.84 km) |
| Ithaca to Shumen | 4,854.00 mi (7,811.76 km) |
| Ithaca to Silistra | 4,829.23 mi (7,771.89 km) |
| Ithaca to Sliven | 4,857.63 mi (7,817.60 km) |
