| Prospect Heights to Kloten | 4,427.79 mi (7,125.84 km) |
| Prospect Heights to Koniz | 4,402.48 mi (7,085.11 km) |
| Prospect Heights to Kreuzlingen | 4,442.78 mi (7,149.96 km) |
| Prospect Heights to Kriens | 4,432.76 mi (7,133.83 km) |
| Prospect Heights to Kusnacht | 4,433.07 mi (7,134.34 km) |
| Prospect Heights to Kussnacht | 4,437.22 mi (7,141.01 km) |
| Prospect Heights to La Chaux-de-Fonds | 4,373.57 mi (7,038.58 km) |
| Prospect Heights to La Tour-de-Peilz | 4,400.55 mi (7,082.00 km) |
| Prospect Heights to Lachen | 4,448.61 mi (7,159.34 km) |
| Prospect Heights to Landecy | 4,381.35 mi (7,051.11 km) |
| Prospect Heights to Landquart | 4,484.05 mi (7,216.38 km) |
| Prospect Heights to Langenthal | 4,406.22 mi (7,091.13 km) |
| Prospect Heights to Langnau | 4,417.05 mi (7,108.55 km) |
| Prospect Heights to Lausanne | 4,388.67 mi (7,062.88 km) |
| Prospect Heights to Le Grand-Saconnex | 4,379.42 mi (7,048.00 km) |
