Act as a seasoned SEO content writer with 10 years of experience in travel and hospitality industries. Your goal is to create a detailed guide on how businesses can optimize their content for Google's Flight Search to increase visibility and drive traffic. Include strategies such as [STRUCTURED DATA MARKUP], [KEYWORD RESEARCH FOR FLIGHT-RELATED QUERIES], and [OPTIMIZING LANDING PAGES FOR USER INTENT]. Explain how each strategy contributes to better rankings and user engagement. Provide examples of effective meta descriptions, titles, and schema markup tailored for flight search results. Ensure the guide is actionable, easy to follow, and incorporates the latest Google algorithm updates.