| Upper Grand Lagoon to Oswaldtwistle | 4,306.15 mi (6,930.08 km) |
| Upper Grand Lagoon to Oswestry | 4,294.59 mi (6,911.48 km) |
| Upper Grand Lagoon to Otley | 4,331.27 mi (6,970.50 km) |
| Upper Grand Lagoon to Ovenden | 4,326.54 mi (6,962.90 km) |
| Upper Grand Lagoon to Oxford | 4,387.72 mi (7,061.36 km) |
| Upper Grand Lagoon to Oxted | 4,449.05 mi (7,160.06 km) |
| Upper Grand Lagoon to Padbury | 4,396.10 mi (7,074.83 km) |
| Upper Grand Lagoon to Padiham | 4,308.49 mi (6,933.84 km) |
| Upper Grand Lagoon to Paignton | 4,315.59 mi (6,945.27 km) |
| Upper Grand Lagoon to Paisley | 4,195.00 mi (6,751.20 km) |
| Upper Grand Lagoon to Palmers Green | 4,437.54 mi (7,141.53 km) |
| Upper Grand Lagoon to Parkstone | 4,378.72 mi (7,046.86 km) |
| Upper Grand Lagoon to Partick | 4,198.90 mi (6,757.47 km) |
| Upper Grand Lagoon to Patcham | 4,451.05 mi (7,163.28 km) |
| Upper Grand Lagoon to Peebles | 4,244.76 mi (6,831.28 km) |
