Aer Lingus asked the US DOT to dismiss the A4A request. The DOT extended the deadline despite Aer Lingus’ opposition. Aer Lingus has asked the US Department of Transportation to dismiss a request from lobby group Airlines for America regarding the Dublin Airport passenger cap. Aer Lingus opposed the extension, stating no US carrier had been harmed since the complaint was filed on 5 January. The DOT decided to extend the deadline despite Aer Lingus’ request.