Heathrow has said its project to build a third runway has been delayed by "at least 12 months" after the aviation regulator rejected its spending plans.
The Civil Aviation Authority (CAA) has refused Heathrow's request to lift spending from £650m to £2.4bn before it even gets planning consent.
The CAA is concerned passengers will end up shouldering the cost if Heathrow does not win permission to expand.
[BBC News]