Yes, you can reschedule an international flight in 2026, but the cost depends on your fare class and the timing of the change. Following a major policy shift in late 2025 and early 2026 (including new DGCA rules in India and similar consumer protections in the EU and US), many airlines now offer a 24- to 48-hour "free change" window after booking. Beyond that window, "Basic Economy" tickets are typically non-changeable, whereas "Main Cabin" and above allow changes for a fee plus the fare difference. In 2026, many carriers have moved toward a "Credit for Future Flight" model rather than direct refunds. If you have a medical emergency, most 2026 regulations require airlines to offer a full refund or credit if you provide valid documentation. Always check your specific airline’s app, as 2026 digital interfaces now allow for "one-tap" rescheduling, though you should be prepared for the "fare gap" if the new flight is more expensive.