The 24-hour rule generally applies to all airlines' tickets. If you terminate your flight within 24 hours of creating the reservation, you do not need to pay any expenses, and once you surpass the 24-hour time threshold, you must pay the costs according to the esteemed airlines' protocols. Numerous airlines will allow you to modify your flight without cost, although it relies on your ticket category and the airline's limitations. Certain airlines may possess a protocol that empowers you to adjust your flight without incurring a charge, provided you do so within a specific time period or on the same path. Other airlines may impose a charge for any modifications you make to your flight, irrespective of when you execute them. This information is typically accessible on the esteemed airline's website or by reaching out to the airlines' customer service division. Also, see whether you have travel insurance or credit card perks that will pay the change price.