American Airlines vs Southwest Carry-On Size

Southwest allows larger carry-ons (24×16×10 vs 22×14×9) and always includes them free. American's Basic Economy excludes carry-ons entirely.

• Southwest max size: 24×16×10 inches — always free ✅
• American max size: 22×14×9 inches — free on Main Cabin+, excluded on Basic Economy ❌
• Southwest: 2 free checked bags on all fares
• American: $35 first bag, $45 second bag

See also: American carry-on size · Southwest carry-on size · American vs Southwest baggage fees