| Festus to Hutchinson (Minnesota) | 504.03 mi (811.16 km) |
| Festus to Hutto (Texas) | 668.13 mi (1,075.26 km) |
| Festus to Hyattsville (Maryland) | 727.77 mi (1,171.24 km) |
| Festus to Hybla Valley (Virginia) | 721.11 mi (1,160.52 km) |
| Festus to Idaho Falls (Idaho) | 1,183.40 mi (1,904.50 km) |
| Festus to Idylwood (Virginia) | 714.32 mi (1,149.59 km) |
| Festus to Ilchester (Maryland) | 737.91 mi (1,187.55 km) |
| Festus to Immokalee (Florida) | 967.96 mi (1,557.77 km) |
| Festus to Imperial (California) | 1,457.85 mi (2,346.18 km) |
| Festus to Imperial Beach (California) | 1,548.17 mi (2,491.53 km) |
| Festus to Independence (Kentucky) | 320.47 mi (515.75 km) |
| Festus to Independence (Missouri) | 220.88 mi (355.48 km) |
| Festus to Indian Trail (North Carolina) | 583.03 mi (938.30 km) |
| Festus to Indiana (Pennsylvania) | 622.72 mi (1,002.17 km) |
| Festus to Indianapolis (Indiana) | 252.95 mi (407.09 km) |
