Yes, it often costs significantly more to check a bag at the gate in 2026, particularly with Low-Cost Carriers (LCCs) like Spirit, Frontier, or Ryanair. These airlines use "escalating pricing," where the cheapest rate is online at the time of booking, and the most expensive is at the boarding gate. For example, a bag that costs $40 online might cost $99 or more if it is "force-checked" at the gate because it exceeds size limits. Even on legacy carriers like American Airlines, paying for your bag online or via the app usually saves you $5 to $10 compared to paying at the airport counter. For 2026 travelers, the "ultimate cost" of a gate-check isn't just financial; it often means your bag is "last on, last off," causing delays at your destination. A high-value strategy is to measure your bag at home to ensure it fits the sizer, avoiding these "punitive" gate-check fees entirely.