| Zollikon to Odessa (Texas) | 5,490.16 mi (8,835.57 km) |
| Zollikon to Ogden (Utah) | 5,317.29 mi (8,557.34 km) |
| Zollikon to Oildale (California) | 5,864.16 mi (9,437.46 km) |
| Zollikon to Ojus (Florida) | 4,864.85 mi (7,829.22 km) |
| Zollikon to Okemos (Michigan) | 4,268.88 mi (6,870.10 km) |
| Zollikon to Oklahoma City (Oklahoma) | 5,120.68 mi (8,240.94 km) |
| Zollikon to Okmulgee (Oklahoma) | 5,055.61 mi (8,136.22 km) |
| Zollikon to Olathe (Kansas) | 4,847.48 mi (7,801.27 km) |
| Zollikon to Old Jamestown (Missouri) | 4,675.77 mi (7,524.93 km) |
| Zollikon to Oldsmar (Florida) | 4,875.29 mi (7,846.02 km) |
| Zollikon to Olean (New York) | 4,057.73 mi (6,530.28 km) |
| Zollikon to Olive Branch (Mississippi) | 4,844.87 mi (7,797.07 km) |
| Zollikon to Olivehurst (California) | 5,724.09 mi (9,212.04 km) |
| Zollikon to Olney (Maryland) | 4,126.68 mi (6,641.25 km) |
| Zollikon to Olympia (Washington) | 5,289.94 mi (8,513.34 km) |
