Southwest Baggage Weight Limit Per Bag: Size, Weight & Fees (2026) Looking for the Southwest baggage weight limit per bag? Learn the maximum checked bag weight, carry-on size restrictions, baggage dimensions, overweight charges, and important luggage rules before you fly. This updated 2026 guide from TheJerseyFlights covers everything travelers need to know, including baggage fees, Business Select baggage benefits, and practical packing tips for domestic and international trips. visit us:https://thejerseyflights.com/airlines/southwest-airlines-flights-wn