| Potomac to San Dona di Piave | 4,360.43 mi (7,017.44 km) |
| Potomac to San Donato Milanese | 4,227.29 mi (6,803.16 km) |
| Potomac to San Felice Circeo | 4,537.37 mi (7,302.20 km) |
| Potomac to San Felice sul Panaro | 4,326.65 mi (6,963.07 km) |
| Potomac to San Ferdinando di Puglia | 4,665.55 mi (7,508.48 km) |
| Potomac to San Gavino Monreale | 4,402.53 mi (7,085.18 km) |
| Potomac to San Gennaro Vesuviano | 4,614.42 mi (7,426.20 km) |
| Potomac to San Giorgio a Cremano | 4,606.82 mi (7,413.96 km) |
| Potomac to San Giorgio del Sannio | 4,620.98 mi (7,436.76 km) |
| Potomac to San Giorgio di Piano | 4,343.39 mi (6,990.00 km) |
| Potomac to San Giorgio Ionico | 4,754.58 mi (7,651.75 km) |
| Potomac to San Giovanni in Fiore | 4,770.88 mi (7,677.99 km) |
| Potomac to San Giovanni in Marignano | 4,424.87 mi (7,121.13 km) |
| Potomac to San Giovanni in Persiceto | 4,335.18 mi (6,976.80 km) |
| Potomac to San Giovanni la Punta | 4,763.49 mi (7,666.10 km) |
