| Heswall to Oakley (California) | 5,142.50 mi (8,276.05 km) |
| Heswall to Oakton (Virginia) | 3,519.79 mi (5,664.55 km) |
| Heswall to Oakville (Missouri) | 4,047.03 mi (6,513.06 km) |
| Heswall to Oatfield (Oregon) | 4,740.14 mi (7,628.52 km) |
| Heswall to Ocala (Florida) | 4,190.89 mi (6,744.59 km) |
| Heswall to Ocean Acres (New Jersey) | 3,359.95 mi (5,407.31 km) |
| Heswall to Ocean City (New Jersey) | 3,394.48 mi (5,462.89 km) |
| Heswall to Ocean Pines (Maryland) | 3,457.09 mi (5,563.66 km) |
| Heswall to Ocean Pointe (Hawaii) | 7,065.79 mi (11,371.29 km) |
| Heswall to Ocean Springs (Mississippi) | 4,394.01 mi (7,071.48 km) |
| Heswall to Oceanside (California) | 5,280.94 mi (8,498.85 km) |
| Heswall to Oceanside (New York) | 3,294.06 mi (5,301.27 km) |
| Heswall to Ocoee (Florida) | 4,196.41 mi (6,753.47 km) |
| Heswall to Oconomowoc (Wisconsin) | 3,754.24 mi (6,041.87 km) |
| Heswall to Odenton (Maryland) | 3,487.36 mi (5,612.36 km) |
