Heathrow is a census-designated place and an unincorporated suburban community in Seminole County, Florida, United States. Heathrow is on the I-4 Corridor in Central Florida, 19 miles northeast of Orlando and 38 miles southwest of Daytona Beach. Heathrow comprises a master-planned, private gated residential community of approximately 2,200 homes, and the Heathrow International Business Center, an office park.