Spirit Airlines Carry-On Rules 2026: What You Need to Know

The spirit airlines carry-on baggage policy 2026 allows one free personal item that fits under the seat (18 x 14 x 8 inches). Full-size carry-on bags (22 x 18 x 10 inches) require an additional fee. Prices are lower when purchased during booking. Bags exceeding size limits may incur higher airport or gate charges.