| Mortsel to Odessa (Texas) | 5,187.78 mi (8,348.93 km) |
| Mortsel to Ogden (Utah) | 4,997.92 mi (8,043.38 km) |
| Mortsel to Oildale (California) | 5,543.81 mi (8,921.90 km) |
| Mortsel to Ojus (Florida) | 4,616.32 mi (7,429.24 km) |
| Mortsel to Okemos (Michigan) | 3,972.72 mi (6,393.47 km) |
| Mortsel to Oklahoma City (Oklahoma) | 4,819.82 mi (7,756.75 km) |
| Mortsel to Okmulgee (Oklahoma) | 4,756.53 mi (7,654.89 km) |
| Mortsel to Olathe (Kansas) | 4,545.05 mi (7,314.55 km) |
| Mortsel to Old Jamestown (Missouri) | 4,379.15 mi (7,047.56 km) |
| Mortsel to Oldsmar (Florida) | 4,615.36 mi (7,427.70 km) |
| Mortsel to Olean (New York) | 3,770.97 mi (6,068.79 km) |
| Mortsel to Olive Branch (Mississippi) | 4,555.92 mi (7,332.05 km) |
| Mortsel to Olivehurst (California) | 5,401.91 mi (8,693.54 km) |
| Mortsel to Olney (Maryland) | 3,849.44 mi (6,195.07 km) |
| Mortsel to Olympia (Washington) | 4,967.41 mi (7,994.28 km) |
