Yes, airlines can and often must rebook your flight in 2026, especially during "irregular operations" (IROPS) caused by weather, mechanical issues, or staff shortages. If an airline cancels your flight or causes a significant delay, they are generally required to put you on their next available flight at no extra cost. In 2026, many carriers have automated this process through their apps, where a "rebooking assistant" will present you with alternative options. However, your rights vary by region; for instance, under India's DGCA rules updated in February 2026, passengers have enhanced protections for cancellations, including a 48-hour "look-in" period for fee-free changes on certain bookings. In Europe (EU 261) and North America, airlines have more discretion on "controllable" vs. "uncontrollable" delays, but the overarching principle remains that the airline is responsible for getting you to your destination or providing a full refund if the offered rebooking is not acceptable to you.