Carry-on baggage — United States airlines

With 16 identified carriers, United States ranks among the most active aviation markets globally. Airlines coexist across all segments, from premium long-haul to budget domestic, with carry-on policies that can diverge sharply.

On numbers, 7 of those 16 airlines belong to the low-cost segment — meaning carry-on choices can shape the bottom line as much as the ticket itself. Observed median sits around 115 cm dimensional sum and 15.88 kg, but that average hides extremes.

United States airlines

• American Airlines — 56x36x23 cm
• Southwest Airlines — 61x41x25 cm
• Spirit Airlines — 56x46x25 cm
• United Airlines — 23x35x56 cm
• Alaska Airlines — 56x36x23 cm
• Allegiant Air — 55x40x25 cm
• Avelo Airlines — 55x35x22 cm
• Breeze Airways — 56x36x23 cm, 15.9 kg
• Delta Air Lines — 56x35x23 cm
• Frontier Airlines — 40.64x25.4x60.96 cm, 15.88 kg
• Hawaiian Airlines — 56x36x23 cm, 11 kg
• JetBlue — 55.88x35.56x22.86 cm
• JetBlue Airways — 55.88x35.56x22.86 cm
• Silver Airways — 56x36x23 cm, 5 kg
• Spirit — 56x46x25 cm
• Sun Country Airlines — 61x41x28 cm, 16 kg