I am asking this because flying isn't my favorite thing in the world. My wife and I are going to Buenos Aires over Xmas. I am debating between the two airlines listed above. A couple people have told me that Aerolineas Argentinas isn't so great. I would just like a few other opinions. In addition, the Aerolineas plane is a Airbus 340, and the LAN plane is a 767-300. I would prefer to be on a newer plane. Can anyone tell me which model is newer? Finally is there any way to check the safety record of various airlines? Lastly, one of the flights leaves in the morning and get in in the evening, and one of the flights leaves in the evening and get in the following morning. Are night time flights generally more turbulent? Thanks in advance for anyone who answers my silly questions.