| Upminster to Ansonia (Connecticut) | 3,410.18 mi (5,488.15 km) |
| Upminster to Antelope (California) | 5,276.98 mi (8,492.48 km) |
| Upminster to Anthem (Arizona) | 5,259.57 mi (8,464.46 km) |
| Upminster to Antioch (California) | 5,332.52 mi (8,581.86 km) |
| Upminster to Antioch (Illinois) | 3,949.40 mi (6,355.94 km) |
| Upminster to Apache Junction (Arizona) | 5,265.15 mi (8,473.45 km) |
| Upminster to Apex (North Carolina) | 3,900.96 mi (6,277.99 km) |
| Upminster to Apollo Beach (Florida) | 4,435.98 mi (7,139.01 km) |
| Upminster to Apopka (Florida) | 4,352.47 mi (7,004.63 km) |
| Upminster to Apple Valley (California) | 5,389.68 mi (8,673.85 km) |
| Upminster to Apple Valley (Minnesota) | 4,031.42 mi (6,487.95 km) |
| Upminster to Appleton (Wisconsin) | 3,878.00 mi (6,241.03 km) |
| Upminster to Arbutus (Maryland) | 3,649.86 mi (5,873.88 km) |
| Upminster to Arcadia (California) | 5,439.07 mi (8,753.34 km) |
| Upminster to Arcata (California) | 5,229.40 mi (8,415.91 km) |
