Quick rules for flying with peanut butter in carry-on and checked baggage. Verdicts and conditions across the major aviation regions below.
Yes, the famous one — peanut butter is a gel/spread per TSA. Max 3.4 oz (100 ml) in carry-on. Full-size jars must be checked.
Gel / spread — ≤ 100 ml in carry-on liquids bag; full-size jars in checked.
Spread — ≤ 100 ml in carry-on, full-size in checked.
Spread — ≤ 100 ml in carry-on, full-size in checked. Commercial sealed jars unrestricted; declare any food on LATAM arrival cards.
Counts as a gel / spread — ≤ 100 ml in carry-on liquids bag; full-size jars in checked. Same as international baseline.
Gel / spread — ≤ 100 ml in carry-on. Full-size in checked. Australia + NZ biosecurity: declare on arrival, but commercial peanut butter generally permitted.