How Much Can a Checked Bag Weigh for Frontier Airlines? 2026 Baggage Guide Wondering how much a checked bag can weigh on Frontier Airlines? Frontier allows standard checked bags up to 40 lbs (18 kg) and a maximum size of 62 linear inches. Bags weighing 41–50 lbs are subject to overweight fees, while heavier bags may incur higher charges or be refused. Learn Frontier's latest baggage rules, weight limits, fees, and packing tips to avoid extra costs and travel smoothly. Read the complete Frontier Airlines baggage guide before your next flight visit us: https://thejerseyflights.com/airlines/frontier-airlines-flights-f9