| Portland to Coswig | 5,196.25 mi (8,362.55 km) |
| Portland to Cottbus | 5,244.34 mi (8,439.95 km) |
| Portland to Crailsheim | 5,304.44 mi (8,536.68 km) |
| Portland to Cremlingen | 5,135.35 mi (8,264.54 km) |
| Portland to Crimmitschau | 5,258.52 mi (8,462.76 km) |
| Portland to Cuxhaven | 4,997.65 mi (8,042.94 km) |
| Portland to Dachau | 5,388.42 mi (8,671.83 km) |
| Portland to Dallgow-Doberitz | 5,170.90 mi (8,321.76 km) |
| Portland to Damme | 5,063.49 mi (8,148.91 km) |
| Portland to Darmstadt | 5,227.33 mi (8,412.58 km) |
| Portland to Dassel | 5,139.53 mi (8,271.27 km) |
| Portland to Datteln | 5,093.04 mi (8,196.45 km) |
| Portland to Dautphe | 5,167.73 mi (8,316.65 km) |
| Portland to Deggendorf | 5,389.90 mi (8,674.20 km) |
| Portland to Delbruck | 5,115.58 mi (8,232.73 km) |
