| Somerville to Odenton (Maryland) | 372.03 mi (598.72 km) |
| Somerville to Odessa (Texas) | 1,854.51 mi (2,984.55 km) |
| Somerville to Ogden (Utah) | 2,085.72 mi (3,356.64 km) |
| Somerville to Oildale (California) | 2,586.39 mi (4,162.39 km) |
| Somerville to Ojus (Florida) | 1,246.19 mi (2,005.55 km) |
| Somerville to Okemos (Michigan) | 677.26 mi (1,089.94 km) |
| Somerville to Oklahoma City (Oklahoma) | 1,490.87 mi (2,399.32 km) |
| Somerville to Okmulgee (Oklahoma) | 1,410.72 mi (2,270.33 km) |
| Somerville to Olathe (Kansas) | 1,262.65 mi (2,032.04 km) |
| Somerville to Old Jamestown (Missouri) | 1,033.18 mi (1,662.74 km) |
| Somerville to Oldsmar (Florida) | 1,184.07 mi (1,905.58 km) |
| Somerville to Olean (New York) | 375.49 mi (604.30 km) |
| Somerville to Olive Branch (Mississippi) | 1,130.56 mi (1,819.46 km) |
| Somerville to Olivehurst (California) | 2,612.53 mi (4,204.46 km) |
| Somerville to Olney (Maryland) | 384.35 mi (618.54 km) |
