No, Frontier Airlines strictly enforces a "one personal item only" policy for its most basic fares. On Frontier, your "personal item" must fit entirely within the 14" x 18" x 8" sizer at the gate. If you have both a small backpack and a purse, the gate agent will require you to pack the purse inside the backpack before boarding. If the two items together do not fit in your single personal item or if you cannot combine them, you will be charged a "Carry-on" fee at the gate, which in 2026 can be as high as $99. This is a common "traveler trap" that catches many people off guard. To avoid this, peer-to-peer advice is to ensure your personal item has enough "empty space" to accommodate your purse or laptop bag right before you reach the boarding group. Frontier’s business model relies heavily on these ancillary fees, so their agents are trained to be very meticulous with the "one bag" rule, often checking every passenger in the later boarding groups to ensure no one is "double-carrying" items.