| Willebroek to Somersworth (New Hampshire) | 3,419.67 mi (5,503.43 km) |
| Willebroek to Somerton (Arizona) | 5,574.60 mi (8,971.45 km) |
| Willebroek to Somerville (Massachusetts) | 3,464.46 mi (5,575.51 km) |
| Willebroek to Somerville (New Jersey) | 3,684.82 mi (5,930.15 km) |
| Willebroek to Sonoma (California) | 5,476.27 mi (8,813.21 km) |
| Willebroek to Soquel (California) | 5,538.57 mi (8,913.47 km) |
| Willebroek to South Bend (Indiana) | 4,090.43 mi (6,582.91 km) |
| Willebroek to South Bradenton (Florida) | 4,639.29 mi (7,466.21 km) |
| Willebroek to South Burlington (Vermont) | 3,462.52 mi (5,572.39 km) |
| Willebroek to South Charleston (West Virginia) | 4,070.94 mi (6,551.55 km) |
| Willebroek to South Daytona (Florida) | 4,487.81 mi (7,222.44 km) |
| Willebroek to South El Monte (California) | 5,596.58 mi (9,006.82 km) |
| Willebroek to South Elgin (Illinois) | 4,152.15 mi (6,682.24 km) |
| Willebroek to South Euclid (Ohio) | 3,915.84 mi (6,301.94 km) |
| Willebroek to South Farmingdale (New York) | 3,631.33 mi (5,844.06 km) |
