Carry-on bags: On trans-Atlantic flights, your carry-on baggage allowance is the same as for standard Economy tickets. For all other Basic Economy tickets, you're allowed one small personal item that fits under the seat in front of you, such as a shoulder bag, purse, laptop bag or other small item that is 9 inches x 10 inches x 17 inches (22 cm x 25 cm x 43 cm) or less. Mobility aids and other assistive devices are also permitted. View our baggage policies. You're not allowed a full-sized carry-on bag unless you're a MileagePlus Premier member or companion traveling on the same reservation, primary cardmember of a qualifying MileagePlus credit card or Star Alliance Gold member. Everyone else who brings a full-sized carry-on bag to the gate will be required to check their bag and pay the applicable checked bag fee plus a $25 gate handling charge.