Fears that cliff-edge Brexit could ground flights as there are no historic rules to fall back on, unlike with other businesses
US airlines have told the UK to move faster to ensure passenger and cargo flights to Heathrow, Stansted and other airports will continue without disruption after Britain leaves the EU.
The aviation trade body Airlines for America, whose members include United, American Airlines and FedEx, says the multibillion pound traffic in both directions will be put at risk unless politicians concentrate their minds on the impact Brexit will have on the industry.