Frontier Airlines applies variable pricing for baggage based on the time of payment and the weight of your bags. Carry-on fees start at $30, while checked bags range between $30 and $55 depending on when they’re added. Extra charges apply for oversized or overweight baggage. Pre-paying for baggage during the booking process offers the best savings. For exact fees on your flight, check Frontier’s official baggage calculator or log into your booking and add bags early to avoid higher airport fees.
