| Barth to Odessa (Texas) | 5,341.51 mi (8,596.33 km) |
| Barth to Ogden (Utah) | 5,068.87 mi (8,157.57 km) |
| Barth to Oildale (California) | 5,602.03 mi (9,015.60 km) |
| Barth to Ojus (Florida) | 4,889.40 mi (7,868.74 km) |
| Barth to Okemos (Michigan) | 4,154.27 mi (6,685.65 km) |
| Barth to Oklahoma City (Oklahoma) | 4,980.94 mi (8,016.04 km) |
| Barth to Okmulgee (Oklahoma) | 4,923.70 mi (7,923.94 km) |
| Barth to Olathe (Kansas) | 4,702.85 mi (7,568.51 km) |
| Barth to Old Jamestown (Missouri) | 4,556.31 mi (7,332.67 km) |
| Barth to Oldsmar (Florida) | 4,870.53 mi (7,838.37 km) |
| Barth to Olean (New York) | 3,978.78 mi (6,403.24 km) |
| Barth to Olive Branch (Mississippi) | 4,752.58 mi (7,648.54 km) |
| Barth to Olivehurst (California) | 5,434.78 mi (8,746.44 km) |
| Barth to Olney (Maryland) | 4,077.74 mi (6,562.48 km) |
| Barth to Olympia (Washington) | 4,966.05 mi (7,992.08 km) |
