Many travel companies are offering fee waivers and flexible cancellation policies as coronavirus cases continue to rise. NBC 5 Responds compiled a list of travel companies and their current policies amid the spread of COVID-19. American United Delta Southwest Korean Air Alaska Porter Allegiant Frontier Spirit JetBlue Hawaiian Sun Country Marriott Hilton VRBO Airbnb Expedia Travelocity Orbitz Avalon Waterways Carnival…