In 2026, what happens to your luggage during a layover depends entirely on your booking type. If you have a "Single PNR" (one ticket for the whole trip) and are flying with partner airlines (like Star Alliance or Oneworld), your bags are typically checked through to your final destination. The ramp agents at the hub airport will scan your bag and move it from the first plane to the second while you wait in the terminal. However, if you are flying an international-to-domestic connection in countries like the U.S., Canada, or India, you must usually pick up your bag at the first port of entry, clear Customs, and then place it back on a "re-check" belt. If you booked two separate tickets on non-partner airlines, you must exit the secure area, collect your bags from the carousel, and check them in again for your second flight. Always check your luggage tag at the first counter; if it shows your final city code, you generally don't need to see it at the layover.