| Chicago Heights to Oswaldtwistle | 3,811.78 mi (6,134.48 km) |
| Chicago Heights to Oswestry | 3,812.48 mi (6,135.59 km) |
| Chicago Heights to Otley | 3,833.23 mi (6,168.99 km) |
| Chicago Heights to Ovenden | 3,830.89 mi (6,165.22 km) |
| Chicago Heights to Oxford | 3,914.00 mi (6,298.98 km) |
| Chicago Heights to Oxted | 3,977.50 mi (6,401.17 km) |
| Chicago Heights to Padbury | 3,918.91 mi (6,306.87 km) |
| Chicago Heights to Padiham | 3,813.27 mi (6,136.87 km) |
| Chicago Heights to Paignton | 3,864.51 mi (6,219.33 km) |
| Chicago Heights to Paisley | 3,680.10 mi (5,922.55 km) |
| Chicago Heights to Palmers Green | 3,962.07 mi (6,376.34 km) |
| Chicago Heights to Parkstone | 3,919.50 mi (6,307.83 km) |
| Chicago Heights to Partick | 3,683.48 mi (5,927.99 km) |
| Chicago Heights to Patcham | 3,984.56 mi (6,412.52 km) |
| Chicago Heights to Peebles | 3,729.60 mi (6,002.22 km) |
