Quick rules for flying with dry ice in carry-on and checked baggage. Verdicts and conditions across the major aviation regions below.
Maximum 5.5 lbs (2.5 kg) per passenger, in either bag, in packaging that allows CO2 to vent. Airline must be notified in advance for checked.
Up to 2.5 kg per person in carry-on or checked, in packaging designed to allow gas release. Declare with airline at booking.
Up to 2.5 kg per person; vented packaging; declare with airline.
Up to 2.5 kg per person; vented packaging; declare 24–48 hr in advance.
Up to 2.5 kg per person in carry-on or checked, in packaging designed to allow gas release. Must declare with the airline at booking (most Asian carriers require 24–48 hr notice).
Up to 2.5 kg per person; declared, vented packaging. Notify airline at booking.