A Frontier Airlines airplane taxis past a Spirit Airlines aircraft at Indianapolis International Airport in Indianapolis, Indiana. Southwest Airlines , for example, last month offered one-way fares of $29 for flights early in the morning or at night, just one example of airline discounting for off-peak periods. Airlines have scheduled a record 259.8 million seats for domestic flights in the fourth quarter, up nearly 8% from last year, on 1.86 million flights, up 6% from 2022, according to aviation-data firm Cirium. United Airlines said it expects to fly 5.9 million passengers from Nov. 17 to Nov. 29, up 13% from last year and 5% more than 2019. That means they could increase their inventory of cheaper basic economy fares during weaker demand periods, or raise fares when demand is high for premium seats.

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Persons: Luke Sharrett, Ryan Green, Scott Keyes, airfare, Bob Jordan, Jordan, Barry Biffle, we're, Hopper, that's, Biffle, Henry Harteveldt Organizations: Frontier, Spirit Airlines, Indianapolis International Airport, Bloomberg, Getty, Texas — Airlines, Southwest Airlines, Skift Aviation, Airlines, JetBlue Airways, Budget, JetBlue, Frontier Airlines, . Frontier Airlines, CNBC, Delta Air Lines, United Airlines, American Airlines, Southwest, Atmosphere Research Locations: Indianapolis , Indiana, Texas, Miramar , Florida, Orlando, Vegas