Spirit
Spirit provides one free personal item, but a carry on bag could cost anywhere between $15-35 at booking.
Carry on measurement
22 x 18 x10 inches
Metric
56 x 46 x 25 cm
Cost
Depends on your flight. Cost calculator linked below.
https://www.spirit.com/OptionalServices

Personal item measurements
18 x 14 x 8 inches
Metric
45 x 35 x 20 cm

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