How Much Can a Checked Bag Weigh for Frontier Airlines? 2026 Baggage Guide Planning to fly with Frontier Airlines? Know the latest checked baggage weight limit before you travel. In 2026, Frontier's standard checked bag may weigh up to 40 lbs (18 kg) and must not exceed 62 linear inches. Bags weighing 41–50 lbs incur overweight fees, while heavier bags may face higher charges or be rejected. Learn Frontier baggage rules, fees, size restrictions, and smart packing tips to avoid extra costs and enjoy a smoother travel experience. visit us:https://thejerseyflights.com/blog/what-is-the-cheapest-day-to-book-a-flight/