Airlines expand international flights as travelers shift to spring and fall

Short summary

Rising summer temperatures and peak-season overcrowding are driving American travelers toward spring and fall shoulder seasons to avoid crowds. Airlines are expanding international flight capacity year-round to meet this demand shift, particularly long-haul routes where margins exceed domestic flights. The trend reflects how climate and consumer behavior are reshaping traditional travel seasonality.

• •Heat and crowding drive travelers away from summer peaks
• •Airlines expand year-round international flights for higher margins
• •Travel seasonality is flattening across the calendar

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