Yes, a 12-year-old can travel alone on a plane in India in 2026, but they fall into a "transition" category between a child and an adult. Major Indian carriers like IndiGo and Air India typically classify children aged 5 to 12 as "Unaccompanied Minors" (UM). For a 12-year-old, the "Flying Solo" service is mandatory on some airlines and optional on others; for instance, IndiGo requires the UM service for those up to age 12, while Air India considers passengers 12 to 17 as "Young Passengers" who can fly alone but may request assistance. If the UM service is used, a fee of approximately ₹5,000 for domestic flights is charged, and an airline staff member will escort the child through security and boarding. Parents must arrive at the airport at least 2 hours early to sign the necessary indemnity forms. By the time a child turns 13 in 2026, they are generally allowed to fly as an adult on most Indian domestic routes without mandatory supervision, though a notarized consent letter is still recommended.