After the aircraft landed in Montréal and authorities completed the required screening and immigration procedures, the remaining passengers continued their journey to Detroit aboard the same aircraft. Travel experts say situations involving international travel restrictions and emergency entry rule changes can occasionally create delays, diversions, and additional screening procedures for travelers flying between Europe, North America, and regions affected by public health advisories. Aviation analysts also note that airlines and border authorities often make rapid operational decisions during evolving public health situations to comply with international travel regulations and protect passenger safety.