| Marshalltown to Ayamonte | 4,365.39 mi (7,025.41 km) |
| Marshalltown to Azcoitia | 4,359.31 mi (7,015.63 km) |
| Marshalltown to Azpeitia | 4,361.10 mi (7,018.52 km) |
| Marshalltown to Azuqueca de Henares | 4,419.26 mi (7,112.11 km) |
| Marshalltown to Badajoz | 4,320.28 mi (6,952.82 km) |
| Marshalltown to Badalona | 4,618.63 mi (7,432.96 km) |
| Marshalltown to Baena | 4,488.66 mi (7,223.80 km) |
| Marshalltown to Baeza | 4,512.09 mi (7,261.51 km) |
| Marshalltown to Bailen | 4,494.76 mi (7,233.62 km) |
| Marshalltown to Balaguer | 4,544.47 mi (7,313.62 km) |
| Marshalltown to Banolas | 4,612.57 mi (7,423.21 km) |
| Marshalltown to Baranain | 4,400.93 mi (7,082.61 km) |
| Marshalltown to Barbadanes | 4,152.40 mi (6,682.65 km) |
| Marshalltown to Barbastro | 4,506.17 mi (7,251.99 km) |
| Marshalltown to Barcelona | 4,618.36 mi (7,432.53 km) |
