| Gloucester Point to Olivares | 3,766.65 mi (6,061.84 km) |
| Gloucester Point to Olivenza | 3,685.40 mi (5,931.07 km) |
| Gloucester Point to Olot | 4,056.91 mi (6,528.97 km) |
| Gloucester Point to Onate | 3,803.95 mi (6,121.87 km) |
| Gloucester Point to Onda | 3,988.00 mi (6,418.06 km) |
| Gloucester Point to Onteniente | 4,003.52 mi (6,443.05 km) |
| Gloucester Point to Orihuela | 4,007.95 mi (6,450.18 km) |
| Gloucester Point to Osuna | 3,824.65 mi (6,155.18 km) |
| Gloucester Point to Ourense | 3,560.24 mi (5,729.65 km) |
| Gloucester Point to Oviedo | 3,634.00 mi (5,848.35 km) |
| Gloucester Point to Paiporta | 3,995.54 mi (6,430.21 km) |
| Gloucester Point to Pajara | 3,611.23 mi (5,811.72 km) |
| Gloucester Point to Palafolls | 4,083.68 mi (6,572.05 km) |
| Gloucester Point to Palafrugell | 4,095.96 mi (6,591.80 km) |
| Gloucester Point to Palamos | 4,096.40 mi (6,592.52 km) |
