| Spello to Oakley (California) | 6,152.59 mi (9,901.64 km) |
| Spello to Oakton (Virginia) | 4,466.05 mi (7,187.41 km) |
| Spello to Oakville (Missouri) | 5,032.15 mi (8,098.46 km) |
| Spello to Oatfield (Oregon) | 5,738.93 mi (9,235.91 km) |
| Spello to Ocala (Florida) | 5,100.20 mi (8,207.98 km) |
| Spello to Ocean Acres (New Jersey) | 4,300.04 mi (6,920.25 km) |
| Spello to Ocean City (New Jersey) | 4,332.76 mi (6,972.90 km) |
| Spello to Ocean Pines (Maryland) | 4,391.85 mi (7,068.00 km) |
| Spello to Ocean Pointe (Hawaii) | 7,954.61 mi (12,801.71 km) |
| Spello to Ocean Springs (Mississippi) | 5,341.09 mi (8,595.65 km) |
| Spello to Oceanside (California) | 6,295.84 mi (10,132.18 km) |
| Spello to Oceanside (New York) | 4,237.46 mi (6,819.53 km) |
| Spello to Ocoee (Florida) | 5,098.72 mi (8,205.59 km) |
| Spello to Oconomowoc (Wisconsin) | 4,750.11 mi (7,644.56 km) |
| Spello to Odenton (Maryland) | 4,432.40 mi (7,133.26 km) |
