Frontier Airlines: carry-on size limits

This page lists Frontier Airlines's own rules that we have reviewed. They apply when Frontier Airlines operates the flight. Security screening (TSA) and dangerous goods (FAA) rules apply on top of them; each item page lists all three.

Most recent review on this page: 2026-10-27.

Frontier Airlines carry-on and personal item size

Limits are shown in the units the airline uses. Fitting the size does not mean the bag is free: fare inclusion is shown separately.

Carry-on bag

Length24 in
Width16 in
Height10 in
Length + width + heightNot checked yet
Weight35 lb
Number of bagsNot checked yet

Source: Frontier Airlines: Bag Options. Reviewed on 2026-10-27.

Checked bag

LengthNot checked yet
WidthNot checked yet
HeightNot checked yet
Length + width + height62 in
Weight40 lb
Number of bagsNot checked yet

Source: Frontier Airlines: Bag Options. Reviewed on 2026-10-27.

Personal item

Length18 in
Width14 in
Height8 in
Length + width + heightNot checked yet
WeightNot checked yet
Number of bagsNot checked yet

Source: Frontier Airlines: Bag Options. Reviewed on 2026-10-27.

Check your bag's size against Frontier Airlines's limits

Check an item for a Frontier Airlines flight

The item checker combines Frontier Airlines's rules with the security screening and dangerous goods rules for your item. For batteries, the Wh calculator works out the watt-hour rating.

Official sources

This page lists rules as the official sources state them, for travel departing the United States. It is not a decision about your item: security officers and your airline make the final call, and rules can change after the review dates shown. Destination customs and quarantine rules are not checked. See the terms and disclaimer.