What is the ruling on traveling on foreign airlines where there is frequent consumption of alcohol, screening of films, and serving of non-halal food?

If an airplane free of Munkarat (forbidden things) is available, it is not permissible to choose an airplane that contains them. One must advise the father and warn him of Allah's punishment. If you are compelled to travel on an airplane that has Munkarat, you must distance yourselves from the forbidden things within it, such as lowering your gaze from forbidden sights and being meticulous about food and drinks.