| Gretna to Norwich | 4,658.43 mi (7,497.02 km) |
| Gretna to Nottingham | 4,554.69 mi (7,330.06 km) |
| Gretna to Nuneaton | 4,551.40 mi (7,324.77 km) |
| Gretna to Oadby | 4,565.36 mi (7,347.23 km) |
| Gretna to Oakengates | 4,508.50 mi (7,255.73 km) |
| Gretna to Oakham | 4,577.40 mi (7,366.61 km) |
| Gretna to Oldbury | 4,529.88 mi (7,290.15 km) |
| Gretna to Oldham | 4,504.12 mi (7,248.67 km) |
| Gretna to Ollerton | 4,554.45 mi (7,329.68 km) |
| Gretna to Olton | 4,539.73 mi (7,305.99 km) |
| Gretna to Omagh | 4,282.81 mi (6,892.52 km) |
| Gretna to Ormesby | 4,519.42 mi (7,273.30 km) |
| Gretna to Ormskirk | 4,473.46 mi (7,199.34 km) |
| Gretna to Orpington | 4,640.39 mi (7,467.99 km) |
| Gretna to Ossett | 4,522.27 mi (7,277.90 km) |
