| Chicago Heights to Yuncos | 4,195.96 mi (6,752.74 km) |
| Chicago Heights to Zafra | 4,139.20 mi (6,661.41 km) |
| Chicago Heights to Zamora | 4,060.94 mi (6,535.44 km) |
| Chicago Heights to Zaragoza | 4,271.72 mi (6,874.67 km) |
| Chicago Heights to Zarautz | 4,157.19 mi (6,690.35 km) |
| Chicago Heights to Zuera | 4,267.86 mi (6,868.46 km) |
| Chicago Heights to Zumaia | 4,152.80 mi (6,683.28 km) |
| Chicago Heights to Zumarraga | 4,157.74 mi (6,691.23 km) |
| Chicago Heights to Longyearbyen | 3,602.75 mi (5,798.07 km) |
| Chicago Heights to Ahus | 4,316.12 mi (6,946.12 km) |
| Chicago Heights to Akersberga | 4,296.86 mi (6,915.12 km) |
| Chicago Heights to Alingsas | 4,184.67 mi (6,734.58 km) |
| Chicago Heights to Almhult | 4,286.82 mi (6,898.96 km) |
| Chicago Heights to Alta | 4,302.88 mi (6,924.81 km) |
| Chicago Heights to Amal | 4,148.81 mi (6,676.86 km) |
