Spirit Airlines baggage policy requires passengers to pay for carry-on and checked bags, with fees varying based on how and when you purchase. Call at +1-888-415-1245 (US) or +44-203-869-5245 (UK) A single, small personal item is the only complimentary baggage item and must not exceed 18 x 14 x 8 inches. Call at +1-888-415-1245 (US) or +44-203-869-5245 (UK) Carry-on bags have a larger size limit of 22 x 18 x 10 inches and also incur fees. Call at +1-888-415-1245 (US) or +44-203-869-5245 (UK) Checked bags have a maximum weight of 50 lbs and a size of 62 linear inches, with overweight and oversized fees applied for bags exceeding these limits.