| Delaware to Zottegem | 4,017.29 mi (6,465.21 km) |
| Delaware to Zulte | 4,001.42 mi (6,439.67 km) |
| Delaware to Zwevegem | 4,001.04 mi (6,439.05 km) |
| Delaware to Zwijndrecht | 4,027.33 mi (6,481.37 km) |
| Delaware to Asenovgrad | 5,184.47 mi (8,343.60 km) |
| Delaware to Aytos | 5,243.54 mi (8,438.66 km) |
| Delaware to Balchik | 5,243.35 mi (8,438.36 km) |
| Delaware to Bankya | 5,086.62 mi (8,186.12 km) |
| Delaware to Bansko | 5,139.04 mi (8,270.49 km) |
| Delaware to Berkovitsa | 5,062.21 mi (8,146.84 km) |
| Delaware to Blagoevgrad | 5,115.66 mi (8,232.86 km) |
| Delaware to Botevgrad | 5,102.84 mi (8,212.22 km) |
| Delaware to Burgas | 5,261.00 mi (8,466.75 km) |
| Delaware to Byala Slatina | 5,083.08 mi (8,180.42 km) |
| Delaware to Chirpan | 5,193.70 mi (8,358.45 km) |
