From time crunch and flight delays to waiting lines and cumbersome carry-on luggage, airplane travel can stress even the most nomadic traveler. It’s easy to let the hassle get the best of people, but knowing how to manage airline obstacles will help relieve the tension and get you to your destination with minimal stress. Sharon Schweitzer, an international etiquette expert, author, and the founder of Access to Culture, who is also a frequent international flyer, offers some advice on the most common air travel issues and how to resolve them.