Live Chat I-70 Community Nearby Traffic I 270 exit 20b a 2024-05-26 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to I-270 Exit 20b A Maryland Heights, MO 4.01 Saint Ann, MO 4.69 Hazelwood, MO 5.19 Interstate highway exits close to I-270 Exit 20b A Exit 20c, i270mo 0.88 Exit 20b a, i270mo 1.71 Exit 232, i70 1.71 Interstate highways close to I-270 Exit 20b A i270mo map 0.88 i70 map 1.71 i64 map 13.30 State roads close to I-270 Exit 20b A MO 180 map 0.73 MO 370 map 2.14 US 67 MO map 2.59