Here is the 2026 benchmark for cost of laying fiber optic cable per foot by method: Open trench (lawn/field): $0. 80 per ft – fastest, lowest cost. Directional boring (road crossing, driveway): $3. This guide provides clear cost estimates, price ranges. Anyone with experience in the field would first answer, “It depends,” listing factors affecting expenditures that include labor, underground vs. aerial, what region of the country, and rural vs. These fibers are thin strands, often as small as a human hair, that transmit data as pulses of light. The Fiber Broadband Association has partnered with Cartesian to research the cost of deploying fiber and provide insight on how these costs are evolving over time.