Singapore Airlines vs Cathay Pacific — carry-on baggage compared | CabinPax

Carry-on rules side by side: maximum dimensions, weight allowance, personal item. Data updated April 2026.

• Singapore Airlines: Somme L+l+H <= 115cm · 7 kg
• Cathay Pacific: 56x36x23 cm · 7 kg

Same family, same broad approach. The contrast between Singapore Airlines and Cathay Pacific plays out on points of detail, where every centimetre tips the balance for one passenger or another.