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Frontier Personal Item & Carry-On Size

Personal item and carry-on limits for Frontier, in inches and centimeters, with a checker to test your own bag.

Last verified Source: Frontier baggage page

The short answer

Your personal item can be up to 18 × 14 × 8 in (46 × 36 × 20 cm) and must fit under the seat in front of you.

Frontier’s carry-on limit is 24 × 16 × 10 in (61 × 41 × 25 cm), including wheels and handles, and up to 35 lb / 16 kg. A carry-on is not included in the base fare: About $59–$99, cheapest at booking, highest at the gate.

Frontier Basic fare: The basic fare includes only the personal item. A carry-on is included in the Economy, Premium and Business bundles; the Business bundle also includes two checked bags up to 50 lb.

Frontier size limits

Drawn to scale. All measurements include wheels, handles and pockets.

Personal item

Under the seat in front
Frontier personal item size limit: 18 × 14 × 8 in (46 × 36 × 20 cm)
Maximum size
18 × 14 × 8 in46 × 36 × 20 cm
Weight
35 lb (16 kg)
Cost
Free on every fare

Carry-on bag

Overhead bin
Frontier carry-on bag size limit: 24 × 16 × 10 in (61 × 41 × 25 cm)
Maximum size
24 × 16 × 10 in61 × 41 × 25 cm
Weight
35 lb (16 kg)
Cost
About $59–$99, cheapest at booking, highest at the gate

Will your bag fit Frontier?

Bag type
Your bag’s outside size, wheels and handles included
Measure your bag at its widest points. Most carry-on bags are 21–22.5 in tall with wheels.

Frontier Basic fare

The basic fare includes only the personal item. A carry-on is included in the Economy, Premium and Business bundles; the Business bundle also includes two checked bags up to 50 lb.

Rules to know

  • The free personal item is 18 × 14 × 8 in, the same size Spirit used, and is size-checked at boarding.
  • Bags are cheapest when added at booking, more in My Trips, and most expensive at the airport and the gate.
  • If bins are full, a paid carry-on is gate-checked at no extra cost.
  • Elite Gold and higher get a free carry-on; Platinum and Diamond also get checked bags.
  • The 51–99 lb overweight fee rose to $129 for bookings from April 4, 2026.

Bringing more? See Frontier Checked Bag Size & Weight Limit and the full Frontier Airlines Baggage Fees & Policy.

Bags that fit Frontier

Frontier compared with similar airlines

Frontier carry-on size compared
AirlineCarry-onPersonal itemCarry-on weight
Frontier24 × 16 × 10 inPaid61 × 41 × 25 cm18 × 14 × 8 in46 × 36 × 20 cm35 lb16 kg
Allegiant22 × 16 × 10 inPaid55 × 40 × 25 cm18 × 14 × 8 in45 × 35 × 20 cmNo limit
Sun Country24 × 16 × 11 inPaid61 × 41 × 28 cm17 × 13 × 9 in43 × 33 × 23 cm35 lb16 kg
Breeze Airways22 × 14 × 9 inPaid56 × 36 × 23 cm17 × 13 × 8 in43 × 33 × 20 cm35 lb16 kg

Every airline in one chart: Personal Item Size by Airline (Master Chart).

Frequently asked questions

What is the Frontier carry-on size limit?
24 × 16 × 10 in (61 × 41 × 25 cm) including wheels and handles. Weight limit: 35 lb / 16 kg.
What size personal item is allowed on Frontier?
Up to 18 × 14 × 8 in (46 × 36 × 20 cm). It must fit under the seat in front of you.
Is a carry-on free on Frontier?
No. About $59–$99, cheapest at booking, highest at the gate The personal item is free.
Is a backpack a personal item on Frontier?
Yes, if it fits within 18 × 14 × 8 in. A large travel backpack may count as your carry-on instead. More on backpacks.

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