We’ve Explained it once, and we’ll say it as over and over as is critical—the greater demand, the higher the fare (even for first class). Looking into alternate airports can considerably reduced prices, especially when flying from or into a more compact hub with less flights. . 來自 Cambridge English Corpus https://businessflightshop.co.uk/blog/how-to-find-the-best-first-class-flight-before-your-next-trip/