| Sleaford to Ansonia (Connecticut) | 3,353.04 mi (5,396.19 km) |
| Sleaford to Antelope (California) | 5,185.45 mi (8,345.18 km) |
| Sleaford to Anthem (Arizona) | 5,176.89 mi (8,331.40 km) |
| Sleaford to Antioch (California) | 5,241.09 mi (8,434.72 km) |
| Sleaford to Antioch (Illinois) | 3,877.83 mi (6,240.77 km) |
| Sleaford to Apache Junction (Arizona) | 5,183.22 mi (8,341.58 km) |
| Sleaford to Apex (North Carolina) | 3,846.13 mi (6,189.75 km) |
| Sleaford to Apollo Beach (Florida) | 4,387.32 mi (7,060.71 km) |
| Sleaford to Apopka (Florida) | 4,303.68 mi (6,926.11 km) |
| Sleaford to Apple Valley (California) | 5,302.91 mi (8,534.21 km) |
| Sleaford to Apple Valley (Minnesota) | 3,953.63 mi (6,362.75 km) |
| Sleaford to Appleton (Wisconsin) | 3,804.13 mi (6,122.16 km) |
| Sleaford to Arbutus (Maryland) | 3,592.36 mi (5,781.35 km) |
| Sleaford to Arcadia (California) | 5,351.96 mi (8,613.14 km) |
| Sleaford to Arcata (California) | 5,135.48 mi (8,264.75 km) |
