Boston Logan International Airport liquids and security rules

What this means at Boston Logan International Airport

• Massport's wording: 'The TSA's 3-1-1 rule applies to liquids in carry-on baggage. Liquids must be in containers of 3.4 ounces (100 milliliters) or less, all placed in one quart-sized, clear, plastic zip-top bag.'
• Massport also states: 'Laptop computers must be removed from bags and placed in a bin for screening.'
• On travelling with children, Massport states: 'Medications, baby formula and food, breast milk, and juice are allowed in reasonable quantities exceeding 3.4 oz (100ml) and are not required to be in a zip-top bag'.
• TSA PreCheck lanes are available at checkpoints in all terminals (A, B, C and E); CLEAR is available in Terminals A and B only.
• Massport recommends arriving two hours before domestic departures and three hours before international departures.
• CAUTION - the Massport page also says 'outer garments and shoes must come off'. That is out of date: DHS/TSA ended the shoes-off requirement for most passengers on 8 July 2025.
• Massport notes that from 1 February 2026 travellers without acceptable ID can pay a $45 fee to use TSA ConfirmID.
• The page does not mention CT or 3-D scanners, so whether liquids may stay in the bag at any Logan lane is not stated.
• Solid food is generally fine through security; liquid and gel foods are subject to 3-1-1 (Massport).

Source: Security Information at Boston Logan Airport | Massport. Checked 20 September 2026.

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