| Aarau to Olympia Heights (Florida) | 4,859.18 mi (7,820.09 km) |
| Aarau to Omaha (Nebraska) | 4,754.20 mi (7,651.14 km) |
| Aarau to On Top of the World Designated Place (Florida) | 4,783.48 mi (7,698.27 km) |
| Aarau to Onalaska (Wisconsin) | 4,450.75 mi (7,162.79 km) |
| Aarau to Oneida (New York) | 3,880.22 mi (6,244.61 km) |
| Aarau to Oneonta (New York) | 3,880.99 mi (6,245.84 km) |
| Aarau to Ontario (California) | 5,881.18 mi (9,464.85 km) |
| Aarau to Ontario (Oregon) | 5,290.55 mi (8,514.31 km) |
| Aarau to Opa-locka (Florida) | 4,847.00 mi (7,800.49 km) |
| Aarau to Opelika (Alabama) | 4,746.98 mi (7,639.53 km) |
| Aarau to Opelousas (Louisiana) | 5,130.72 mi (8,257.09 km) |
| Aarau to Orange (California) | 5,901.56 mi (9,497.65 km) |
| Aarau to Orange (Texas) | 5,219.82 mi (8,400.49 km) |
| Aarau to Orange City (Florida) | 4,747.87 mi (7,640.96 km) |
| Aarau to Orangeburg (South Carolina) | 4,516.14 mi (7,268.02 km) |
