Checked Baggage Size Limits by Airline (2026)

Most US airlines allow checked bags up to 62 in (157 cm) combined linear dimensions (length + width + height) and 50 lb (23 kg). Exceeding either limit triggers significant extra fees.

US Airline Checked Bag Size Limits

Delta: Max 62 in linear (157 cm) · 50 lb (23 kg) · 1st bag $35, 2nd bag $45
United: Max 62 in linear · 50 lb · 1st bag $35, 2nd bag $45
American: Max 62 in linear · 50 lb · 1st bag $35, 2nd bag $45
Southwest: Max 62 in linear · 50 lb · First 2 bags FREE
Alaska: Max 62 in linear · 50 lb · 1st bag $35, 2nd bag $45
JetBlue: Max 62 in linear · 50 lb · 1st bag $35, 2nd bag $50
Spirit: Max 62 in linear · 40 lb · checked bag $39–$89+ (buy online)
Frontier: Max 62 in linear · 40 lb · checked bag $29–$89+ (buy online)

Oversize Bag Fees

Bags exceeding 62 in linear but under 115 in (292 cm) are classified as "oversized" and incur a surcharge in addition to your standard checked bag fee.

Delta/United/American/Alaska: $200 oversize fee for bags 63–115 in linear
Southwest: $75 oversize fee for bags over 62 in linear
JetBlue: $150 oversize fee for bags 63–115 in linear
Bags over 115 in: Not accepted as checked baggage on any airline — must ship as cargo

Overweight Bag Fees

51–70 lb (23–32 kg): $100–$200 overweight fee on Delta/United/American/Alaska
71–100 lb (32–45 kg): $200–$400 overweight fee; Southwest does not accept bags over 100 lb
Over 100 lb (45 kg): Not accepted as checked baggage on most airlines

International Airline Limits

British Airways, Lufthansa, Air France: Max 23 kg (50.7 lb) per bag in economy; 32 kg in business class; 158 cm linear
Emirates: 23 kg per piece in economy; 2 pieces allowed; 32 kg in business
Singapore Airlines: 23 kg per piece; 2 pieces in economy on long-haul routes
Japan Airlines / ANA: 23 kg per piece; 2 pieces in economy on transpacific routes