Frontier Airlines carry-on size and weight in 2026
Frontier Airlines (USA, IATA code F9) allows cabin bags up to 61 cm long, 40.6 cm wide and 25.4 cm deep; the weight limit is 15.9 kg.
The dimensions include wheels, handles and outer pockets. A soft bag can usually be squeezed a little, but a hard-shell suitcase cannot lose that extra centimetre — and that is exactly when gate staff ask you to pay.
The Frontier Airlines sizer is a double one: besides the main space there is a slot for a small personal item of 46×36×20 cm.
Instead of guessing, open Kalibrator: pick Frontier Airlines, enter the size of your suitcase or bag and see in 3D whether it fits the sizer and where exactly it sticks out.
Source: official Frontier Airlines rules. Data as of 2026-11-03.
Frequently asked questions
What is the Frontier Airlines carry-on size?
Up to 61×40.6×25.4 cm (length × width × depth), including wheels and handles.
How much can Frontier Airlines hand luggage weigh?
Up to 15.9 kg.
Can I bring an extra bag on Frontier Airlines?
Yes, the sizer has a slot for a small personal item of 46×36×20 cm. A small bag or backpack that fits it is checked against that slot.
How do I check whether my suitcase fits?
Open Kalibrator with Frontier Airlines selected and enter three dimensions — the site shows your suitcase in a 3D sizer and tells you where it sticks out.
How accurate is this data?
The allowances come from the airline's official website (link below). Rules change from time to time, so check with the airline before your flight.