Solutions include:

This briefing explains that the UK and the EU would still be able to make arrangements which are already extended to non-EU members, such as an ‘air services agreement’ to keep planes flying. This would require flexibility on both sides, but the mutual interests in protecting aviation would be overwhelming.• UK retaining access to the EU’s Single Aviation Market on current terms by immediately re-joining the European Common Aviation Area as an independent member state, and remaining part of the European Aviation Safety Agency• Negotiating a bespoke arrangement, effectively a new free trade agreement (FTA) for aviation only