According to the FAA, about 25% of all flights nationwide are delayed, with busy airports seeing even higher percentages. The agency says that its antiquated radar-based air traffic control system is one of the primary causes of the delays. The FAA is seeking $15 billion to $22 billion by 2025 to build a satellite-based system that can better handle the traffic demand. Funding the new system is problematic, and the FAA has proposed an increase in fuel tax for general aviation aircraft, and for airlines to pay a 50-cent-per-mile user fee for using the airspace and $105 per landing at major airports.

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