<s>[INST] What is historically the most luxurious airline that flies within the continental United States? [/INST] In the past, many people have regarded Braniff International Airways as offering an luxurious travel experience.</s>\ <s>[INST] Is it still the most luxurious? [/INST] Braniff operations were ceased at the end of December 1989, while operating only a limited Boeing 727. Today, American Airlines holds the most comfortable and luxurious planes and cabins in the US.</s>