Yes, you can cancel a flight for just one passenger even if multiple people are on the same booking, but the process usually involves "splitting" the reservation (often called "dividing the PNR"). In 2026, most major airlines allow you to do this via their "Manage Booking" portal or by contacting a customer service agent. When you split the booking, the passenger who needs to cancel is moved to a new, unique reservation number, while the remaining passengers stay on the original one. Once separated, the cancellation or refund for that individual passenger can be processed according to their specific fare rules without affecting the travel plans of others in the group. It is important to note that if you are in India, as of February 2026, new DGCA norms allow for fee-free cancellations or name corrections within 24–48 hours of booking for direct website purchases, making it even easier to handle individual changes shortly after a group reservation is made.