| Schwarzenbek to Olympia Heights (Florida) | 4,839.68 mi (7,788.71 km) |
| Schwarzenbek to Omaha (Nebraska) | 4,576.49 mi (7,365.15 km) |
| Schwarzenbek to On Top of the World Designated Place (Florida) | 4,735.19 mi (7,620.55 km) |
| Schwarzenbek to Onalaska (Wisconsin) | 4,279.25 mi (6,886.79 km) |
| Schwarzenbek to Oneida (New York) | 3,777.34 mi (6,079.04 km) |
| Schwarzenbek to Oneonta (New York) | 3,784.91 mi (6,091.22 km) |
| Schwarzenbek to Ontario (California) | 5,638.42 mi (9,074.16 km) |
| Schwarzenbek to Ontario (Oregon) | 5,017.90 mi (8,075.52 km) |
| Schwarzenbek to Opa-locka (Florida) | 4,826.99 mi (7,768.28 km) |
| Schwarzenbek to Opelika (Alabama) | 4,663.50 mi (7,505.18 km) |
| Schwarzenbek to Opelousas (Louisiana) | 5,025.07 mi (8,087.07 km) |
| Schwarzenbek to Orange (California) | 5,658.59 mi (9,106.63 km) |
| Schwarzenbek to Orange (Texas) | 5,107.72 mi (8,220.09 km) |
| Schwarzenbek to Orange City (Florida) | 4,705.69 mi (7,573.08 km) |
| Schwarzenbek to Orangeburg (South Carolina) | 4,450.14 mi (7,161.81 km) |
