Latam is quite strict regarding latam carry on bag size. Their allowed dimensions for a Latam Carry On Bag Size are 22 x 14 x 9 inches (56 x 36 x 23 cm) including the wheels and handles. If your bag exceeds those dimensions, even if just slightly, they will require you to check the bag instead of carrying it on. It's important to measure your bag to be sure it complies with the size restrictions.

Follow these steps for Latam baggage flight booking:
  • Visit LATAM's Website: Go to LATAM Airlines website.
  • Log In/Create Account: Log in or create an account.
  • Book Flight: Search, select, and book your flight.
  • Add Baggage: Include baggage during the booking process.
  • Review & Pay: Check fees, review booking, and make payment.
  • Receive Confirmation: Get an email with flight and baggage details.
  • Check Allowances: Confirm baggage allowances.
  • Save Itinerary: Save or print your itinerary.
  • Arrive Early: Arrive at the airport early and drop off checked baggage.

For more information call the helpline at 1 (866) 435-9526 or 1 (844) 902-4930 (OTA-Skip Waiting). Or read the blog on the Airlinespetpolicy site.