In 2026, airline policies regarding changes have become significantly more passenger-friendly, but the "cutoff" is strictly enforced. Most major carriers allow you to change your flight up until roughly 1 to 2 hours before the scheduled departure, provided you have not yet checked in your bags. A major industry shift occurred on March 26, 2026, when several global regulators (including India's DGCA) introduced a mandatory 48-hour "look-in" window. This allows passengers who booked at least 7 to 15 days in advance to amend or cancel their tickets without any penalty (paying only the fare difference). Outside of this window, if you hold a "flexible" or "standard" economy ticket, you can usually change it via the airline's app mid-journey. However, if you are a "no-show" (missing the flight without notifying the airline before the gate closes), you generally forfeit the ticket value entirely. For the best flexibility, always attempt to make changes at least 24 hours in advance to avoid the higher fees associated with "same-day" changes.