Hi there, can any of you good people help me? I'll be travelling from CUN-EWR on United (Business class) with my parents (both wheelchair users) and connecting at EWK to transfer onto DUB. My travel agent has allowed 2 hours for the connecting time, however as we're not US citizens, we're obliged clear US Immigration and Customs first. Given United's not so great record on punctuality, do you think is is allowing enough time? I'm anxious not to miss the connecting flight! With grateful thanks.