| Trofaiach to Odessa (Texas) | 5,722.33 mi (9,209.21 km) |
| Trofaiach to Ogden (Utah) | 5,504.76 mi (8,859.05 km) |
| Trofaiach to Oildale (California) | 6,045.37 mi (9,729.09 km) |
| Trofaiach to Ojus (Florida) | 5,146.26 mi (8,282.11 km) |
| Trofaiach to Okemos (Michigan) | 4,510.85 mi (7,259.51 km) |
| Trofaiach to Oklahoma City (Oklahoma) | 5,355.49 mi (8,618.82 km) |
| Trofaiach to Okmulgee (Oklahoma) | 5,293.17 mi (8,518.54 km) |
| Trofaiach to Olathe (Kansas) | 5,079.88 mi (8,175.28 km) |
| Trofaiach to Old Jamestown (Missouri) | 4,916.98 mi (7,913.12 km) |
| Trofaiach to Oldsmar (Florida) | 5,150.32 mi (8,288.64 km) |
| Trofaiach to Olean (New York) | 4,310.89 mi (6,937.71 km) |
| Trofaiach to Olive Branch (Mississippi) | 5,095.59 mi (8,200.55 km) |
| Trofaiach to Olivehurst (California) | 5,889.93 mi (9,478.92 km) |
| Trofaiach to Olney (Maryland) | 4,388.87 mi (7,063.21 km) |
| Trofaiach to Olympia (Washington) | 5,434.02 mi (8,745.21 km) |
