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Frontier Airlines Carry-On Size & Bag Rules
Frontier Airlines is a US ultra-low-cost carrier. Only a personal item is free on all fares. Carry-on bags require a separate purchase. The airline is strict about enforcing personal item size limits during boarding.
Personal Item
Under the seat
Length
18.0
in
Width
14.0
in
Height
8.0
in
Cabin Bag
Overhead bin
Length
24.0
in
Width
16.0
in
Height
10.0
in
All passengers get 1 free personal item (under the seat). A carry-on bag is not included and must be purchased separately. There is no weight limit for personal items.
Will Your Bag Fit on Frontier Airlines?
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Your bag dimensions
How to Measure
Length — tallest dimension, from floor to top of handle/wheels
Width — widest side, including external pockets
Depth — front to back, at the thickest point
Always measure the full external size — wheels, handles, and pockets count. Manufacturer specs often exclude these.
What is the Squish Score?
Not all bags are rigid boxes. A soft bag that is slightly over the limit can still squeeze into a gate sizer if the material compresses. We rate bags from 1–5:
Top Bags That Fit Frontier Airlines
Bags that fit Frontier Airlines's carry-on limits.
