| Ashton to Odessa (Texas) | 4,867.75 mi (7,833.89 km) |
| Ashton to Ogden (Utah) | 4,685.54 mi (7,540.64 km) |
| Ashton to Oildale (California) | 5,233.11 mi (8,421.88 km) |
| Ashton to Ojus (Florida) | 4,315.36 mi (6,944.90 km) |
| Ashton to Okemos (Michigan) | 3,653.23 mi (5,879.31 km) |
| Ashton to Oklahoma City (Oklahoma) | 4,499.82 mi (7,241.76 km) |
| Ashton to Okmulgee (Oklahoma) | 4,436.64 mi (7,140.08 km) |
| Ashton to Olathe (Kansas) | 4,225.02 mi (6,799.51 km) |
| Ashton to Old Jamestown (Missouri) | 4,059.55 mi (6,533.21 km) |
| Ashton to Oldsmar (Florida) | 4,308.49 mi (6,933.84 km) |
| Ashton to Olean (New York) | 3,453.71 mi (5,558.20 km) |
| Ashton to Olive Branch (Mississippi) | 4,237.82 mi (6,820.11 km) |
| Ashton to Olivehurst (California) | 5,096.89 mi (8,202.65 km) |
| Ashton to Olney (Maryland) | 3,535.46 mi (5,689.78 km) |
| Ashton to Olympia (Washington) | 4,672.67 mi (7,519.93 km) |
