| Drogheda to Oakley (California) | 5,026.44 mi (8,089.27 km) |
| Drogheda to Oakton (Virginia) | 3,383.66 mi (5,445.48 km) |
| Drogheda to Oakville (Missouri) | 3,913.27 mi (6,297.80 km) |
| Drogheda to Oatfield (Oregon) | 4,630.74 mi (7,452.46 km) |
| Drogheda to Ocala (Florida) | 4,054.71 mi (6,525.42 km) |
| Drogheda to Ocean Acres (New Jersey) | 3,223.71 mi (5,188.06 km) |
| Drogheda to Ocean City (New Jersey) | 3,258.23 mi (5,243.62 km) |
| Drogheda to Ocean Pines (Maryland) | 3,320.83 mi (5,344.35 km) |
| Drogheda to Ocean Pointe (Hawaii) | 6,984.51 mi (11,240.49 km) |
| Drogheda to Ocean Springs (Mississippi) | 4,258.01 mi (6,852.60 km) |
| Drogheda to Oceanside (California) | 5,158.22 mi (8,301.36 km) |
| Drogheda to Oceanside (New York) | 3,157.86 mi (5,082.08 km) |
| Drogheda to Ocoee (Florida) | 4,060.33 mi (6,534.47 km) |
| Drogheda to Oconomowoc (Wisconsin) | 3,621.98 mi (5,829.01 km) |
| Drogheda to Odenton (Maryland) | 3,351.21 mi (5,393.24 km) |
