| Manassas to Smolyan | 5,044.13 mi (8,117.75 km) |
| Manassas to Sofia | 4,941.77 mi (7,953.02 km) |
| Manassas to Sopot | 5,001.80 mi (8,049.62 km) |
| Manassas to Sozopol | 5,130.46 mi (8,256.67 km) |
| Manassas to Sredets | 5,113.33 mi (8,229.11 km) |
| Manassas to Stamboliyski | 5,014.40 mi (8,069.90 km) |
| Manassas to Stara Zagora | 5,047.36 mi (8,122.94 km) |
| Manassas to Svilengrad | 5,097.82 mi (8,204.15 km) |
| Manassas to Svishtov | 4,985.84 mi (8,023.93 km) |
| Manassas to Targovishte | 5,050.40 mi (8,127.83 km) |
| Manassas to Teteven | 4,971.14 mi (8,000.28 km) |
| Manassas to Troyan | 4,990.78 mi (8,031.89 km) |
| Manassas to Tryavna | 5,023.12 mi (8,083.94 km) |
| Manassas to Tutrakan | 5,017.94 mi (8,075.60 km) |
| Manassas to Varna | 5,104.62 mi (8,215.09 km) |
