Last-minute walk-up fares‌ ，在出行前短时间内购买的、未提前预订的全价票，通常价格较高。
“Upstart discount airlines” ，新兴的廉价航空公司‌，即在传统航空市场之外兴起、以低成本运营模式提供低价机票的航空公司。
Last-minute walk-up fares to hot vacation destinations, such as US flights to the Caribbean, are up 74% from earlier this month, according to data from Deutsche Bank, while those fares to Hawaii from the mainland were up 21%.
US airlines don’t have to worry about shortages as much as foreign carriers. The United States is the world’s largest oil producer and one of the leading exporters of jet fuel.
Upstart discount airlines, an important supply of cheap seats, have struggled financially since the pandemic. “Financially weaker airlines that may struggle to absorb these combined pressures could default and/or return aircraft early,” Fitch Ratings warned earlier this month.