| Geldern to Oakley (California) | 5,502.80 mi (8,855.90 km) |
| Geldern to Oakton (Virginia) | 3,935.83 mi (6,334.11 km) |
| Geldern to Oakville (Missouri) | 4,457.42 mi (7,173.52 km) |
| Geldern to Oatfield (Oregon) | 5,082.35 mi (8,179.25 km) |
| Geldern to Ocala (Florida) | 4,606.47 mi (7,413.40 km) |
| Geldern to Ocean Acres (New Jersey) | 3,776.14 mi (6,077.11 km) |
| Geldern to Ocean City (New Jersey) | 3,810.68 mi (6,132.70 km) |
| Geldern to Ocean Pines (Maryland) | 3,873.29 mi (6,233.46 km) |
| Geldern to Ocean Pointe (Hawaii) | 7,315.83 mi (11,773.68 km) |
| Geldern to Ocean Springs (Mississippi) | 4,809.82 mi (7,740.66 km) |
| Geldern to Oceanside (California) | 5,660.09 mi (9,109.04 km) |
| Geldern to Oceanside (New York) | 3,710.21 mi (5,971.01 km) |
| Geldern to Ocoee (Florida) | 4,611.58 mi (7,421.62 km) |
| Geldern to Oconomowoc (Wisconsin) | 4,160.92 mi (6,696.36 km) |
| Geldern to Odenton (Maryland) | 3,903.45 mi (6,281.99 km) |
