| Borehamwood to Odessa (Texas) | 4,995.34 mi (8,039.23 km) |
| Borehamwood to Ogden (Utah) | 4,826.37 mi (7,767.30 km) |
| Borehamwood to Oildale (California) | 5,374.87 mi (8,650.01 km) |
| Borehamwood to Ojus (Florida) | 4,409.44 mi (7,096.31 km) |
| Borehamwood to Okemos (Michigan) | 3,776.36 mi (6,077.46 km) |
| Borehamwood to Oklahoma City (Oklahoma) | 4,626.33 mi (7,445.36 km) |
| Borehamwood to Okmulgee (Oklahoma) | 4,561.93 mi (7,341.72 km) |
| Borehamwood to Olathe (Kansas) | 4,352.58 mi (7,004.80 km) |
| Borehamwood to Old Jamestown (Missouri) | 4,183.10 mi (6,732.05 km) |
| Borehamwood to Oldsmar (Florida) | 4,409.24 mi (7,095.99 km) |
| Borehamwood to Olean (New York) | 3,570.43 mi (5,746.05 km) |
| Borehamwood to Olive Branch (Mississippi) | 4,356.37 mi (7,010.90 km) |
| Borehamwood to Olivehurst (California) | 5,241.12 mi (8,434.78 km) |
| Borehamwood to Olney (Maryland) | 3,646.07 mi (5,867.78 km) |
| Borehamwood to Olympia (Washington) | 4,819.37 mi (7,756.02 km) |
