| Barmstedt to Odessa (Texas) | 5,270.14 mi (8,481.48 km) |
| Barmstedt to Ogden (Utah) | 5,020.55 mi (8,079.80 km) |
| Barmstedt to Oildale (California) | 5,558.02 mi (8,944.77 km) |
| Barmstedt to Ojus (Florida) | 4,786.82 mi (7,703.64 km) |
| Barmstedt to Okemos (Michigan) | 4,074.18 mi (6,556.76 km) |
| Barmstedt to Oklahoma City (Oklahoma) | 4,907.20 mi (7,897.37 km) |
| Barmstedt to Okmulgee (Oklahoma) | 4,848.27 mi (7,802.54 km) |
| Barmstedt to Olathe (Kansas) | 4,629.73 mi (7,450.83 km) |
| Barmstedt to Old Jamestown (Missouri) | 4,477.82 mi (7,206.36 km) |
| Barmstedt to Oldsmar (Florida) | 4,772.28 mi (7,680.24 km) |
| Barmstedt to Olean (New York) | 3,891.66 mi (6,263.02 km) |
| Barmstedt to Olive Branch (Mississippi) | 4,669.13 mi (7,514.24 km) |
| Barmstedt to Olivehurst (California) | 5,398.04 mi (8,687.31 km) |
| Barmstedt to Olney (Maryland) | 3,985.51 mi (6,414.06 km) |
| Barmstedt to Olympia (Washington) | 4,938.99 mi (7,948.53 km) |
