| Estoril to Popovo | 1,870.18 mi (3,009.76 km) |
| Estoril to Provadia | 1,931.07 mi (3,107.75 km) |
| Estoril to Radnevo | 1,859.27 mi (2,992.20 km) |
| Estoril to Radomir | 1,706.40 mi (2,746.18 km) |
| Estoril to Rakitovo | 1,766.30 mi (2,842.58 km) |
| Estoril to Rakovski | 1,809.98 mi (2,912.89 km) |
| Estoril to Razgrad | 1,883.87 mi (3,031.79 km) |
| Estoril to Razlog | 1,735.14 mi (2,792.44 km) |
| Estoril to Ruse | 1,855.13 mi (2,985.55 km) |
| Estoril to Samokov | 1,737.86 mi (2,796.82 km) |
| Estoril to Sandanski | 1,727.19 mi (2,779.65 km) |
| Estoril to Sevlievo | 1,814.75 mi (2,920.55 km) |
| Estoril to Shumen | 1,905.55 mi (3,066.68 km) |
| Estoril to Silistra | 1,919.57 mi (3,089.25 km) |
| Estoril to Sliven | 1,877.72 mi (3,021.90 km) |
