In 2026, the estimated costs for major U.S. bullet train projects have reached record levels due to engineering challenges and inflation. The California High-Speed Rail project, which aims to connect San Francisco to Los Angeles, is currently projected to cost between $100 billion and $128 billion for the full Phase 1 system. The initial "Central Valley" segment alone has seen its budget grow significantly. Meanwhile, the Texas Central project (Dallas to Houston) is estimated at over $30 billion, though its funding remains a mix of private investment and federal support. For passengers, a ticket on these high-speed lines is expected to be competitive with regional airfares; early projections for a one-way trip between SF and LA suggest a price point around $80 to $100 in today's value, aimed at attracting business travelers who value the 3-hour travel time over a 6-hour drive. While the "cost of construction" is massive, these projects are being built with the goal of providing a sustainable, high-capacity alternative to highway expansion and short-haul flights.