| Dundalk to Norwich | 3,658.81 mi (5,888.28 km) |
| Dundalk to Nottingham | 3,554.75 mi (5,720.82 km) |
| Dundalk to Nuneaton | 3,550.60 mi (5,714.13 km) |
| Dundalk to Oadby | 3,564.81 mi (5,737.01 km) |
| Dundalk to Oakengates | 3,507.68 mi (5,645.06 km) |
| Dundalk to Oakham | 3,577.10 mi (5,756.78 km) |
| Dundalk to Oldbury | 3,528.88 mi (5,679.19 km) |
| Dundalk to Oldham | 3,504.98 mi (5,640.73 km) |
| Dundalk to Ollerton | 3,555.03 mi (5,721.26 km) |
| Dundalk to Olton | 3,538.69 mi (5,694.96 km) |
| Dundalk to Omagh | 3,284.26 mi (5,285.51 km) |
| Dundalk to Ormesby | 3,522.93 mi (5,669.61 km) |
| Dundalk to Ormskirk | 3,474.10 mi (5,591.03 km) |
| Dundalk to Orpington | 3,638.36 mi (5,855.37 km) |
| Dundalk to Ossett | 3,523.62 mi (5,670.72 km) |
