Does Frontier have a carry-on weight limit?

Yes. Carry-ons on Frontier can weigh up to 35 lb (15.9 kg).

What is the Frontier personal item size?

18 × 14 × 8 in (46 × 36 × 20 cm). Free on every fare; must fit under the seat.

Will a standard 22 × 14 × 9 in carry-on fit on Frontier?

Yes. A 22 × 14 × 9 in bag (56 × 36 × 23 cm) fits within Frontier's 24 × 16 × 10 in (61 × 41 × 25 cm) limit, as long as it weighs no more than 35 lb (15.9 kg).

What is the Frontier carry-on size in centimeters?

61 × 41 × 25 cm, which is 24 × 16 × 10 in. Airlines measure the outside of the bag, wheels and handles included.

Can I bring a carry-on and a personal item on Frontier?

Only the personal item is free on Basic; the carry-on is an add-on or comes with higher fares. Free on every fare; must fit under the seat.

What happens if my carry-on is too big on Frontier?

Gate agents can make you check it, and checking a bag at the gate usually costs more than adding it when you book. Frontier also checks weight: the limit is 35 lb (15.9 kg). Measure your packed bag, wheels and handles included, before you go.

Which airports does Frontier fly from?

Frontier flies from Denver (DEN), Atlanta (ATL), Austin (AUS), Baltimore (BWI), Boise (BOI), Boston (BOS), Buffalo (BUF), Burbank (BUR), Charlotte (CLT), Chicago (ORD), plus 53 more airports we cover. Each has an airport guide with transit, lounges and parking.

Does a backpack count as a personal item on Frontier?

Yes, if it fits within 18 × 14 × 8 in (46 × 36 × 20 cm). A typical small backpack or daypack, under-seat rolling bag, laptop backpack and large tote fit, but a weekender duffel (2 in too long, 2 in too deep) doesn't.

2026 carry-on & personal item rules

Frontier Airlines carry-on size

Frontier Airlines's carry-on baggage size limit is 24 × 16 × 10 in (61 × 41 × 25 cm), with a 35 lb (15.9 kg) weight limit. A carry-on costs extra on the Basic fare (bundles include one). Prices vary by route and date: roughly $25–$79 online, up to $100 at the gate.

Verified Oct 17, 2026By Steven MoHow we check Report a correction

Carry-on

24 × 16 × 10 in

61 × 41 × 25 cm

Weight limit

35 lb

15.9 kg

Personal item

18 × 14 × 8 in

46 × 36 × 20 cm

Carry-on on cheapest fare

Costs extra

Basic includes only a personal item

Quick answer

Frontier Airlines allows a carry-on up to 24 × 16 × 10 in (61 × 41 × 25 cm) and 35 lb, plus a personal item up to 18 × 14 × 8 in. The cheapest fare includes only the personal item; the carry-on costs extra.

Carry-on: 24 × 16 × 10 in (61 × 41 × 25 cm)
Weight limit: 35 lb (15.9 kg)
Personal item: 18 × 14 × 8 in (46 × 36 × 20 cm)
Cheapest fare: Costs extra on the cheapest fare
Standard 22 × 14 × 9 in bag: Fits
Checked bag: the first checked bag on Frontier costs $29–$63 if you pay online ($79–$92 at the airport) and the second $59–$86.

Frontier bag sizes, drawn to scale

Carry-on: 24 × 16 × 10 in (61 × 41 × 25 cm), wheels and handles includedPersonal item: 18 × 14 × 8 in (46 × 36 × 20 cm)

Will my bag fit on Frontier?

Measure your packed bag, including wheels and handles.

LengthinWidthinDepthin

Weight (optional)lb

As a carry-on

Fits

Fits, but costs extra on the cheapest fare

Limit: 24 × 16 × 10 in (61 × 41 × 25 cm), 35 lb (15.9 kg)

As a personal item

Too big

4 in too long, 1 in too deep

Limit: 18 × 14 × 8 in (46 × 36 × 20 cm)

Check this bag against every airline

Will my bag fit as a personal item on Frontier?

Typical sizes of everyday bags, checked against Frontier's 18 × 14 × 8 in personal item limit. Measure your own bag, or use the checker above.

Small backpack or daypack16 × 12 × 6 inFits
Under-seat rolling bag16 × 13 × 8 inFits
Laptop backpack18 × 12 × 8 inFits
Large tote18 × 14 × 6 inFits
Weekender duffel20 × 11 × 10 inToo big: 2 in too long, 2 in too deep

Frontier carry-on rules by fare

Basic

The Basic fare includes only a personal item. Add a carry-on when you book; it costs the most at the gate.

Higher fares

Bundles and higher fares add the carry-on; otherwise you buy it separately.

Checked bags

On all Frontier flights, the first checked bag on Frontier costs $29–$63 if you pay online ($79–$92 at the airport) and the second $59–$86. All Frontier bag fees

Tips for flying Frontier

•Measure your packed bag, wheels and handles included; many suitcases sold as "22-inch" are taller with the wheels.
•Weigh your bag at home: Frontier has a 35 lb (15.9 kg) carry-on limit.
•Add the carry-on when you book. It usually costs more later and the most at the gate.

How Frontier compares

Carry-on rules at other U.S. airlines.

Airline	Carry-on	Weight	Personal item	Carry-on on cheapest fare
Frontier Airlines	24 × 16 × 10 in61 × 41 × 25 cm	35 lb	18 × 14 × 8 in	Costs extra
American Airlines	22 × 14 × 9 in56 × 36 × 23 cm	—	18 × 14 × 8 in	Included
Delta Air Lines	22 × 14 × 9 in56 × 36 × 23 cm	—	Must fit under seat	Included
United Airlines	22 × 14 × 9 in56 × 36 × 23 cm	—	17 × 10 × 9 in	Not on some basic fares
Southwest Airlines	24 × 16 × 10 in61 × 41 × 25 cm	—	16.25 × 13.5 × 8 in	Included
Alaska Airlines	22 × 14 × 9 in56 × 36 × 23 cm	—	Must fit under seat	Included
JetBlue	22 × 14 × 9 in56 × 36 × 23 cm	—	17 × 13 × 8 in	Included
Hawaiian Airlines	22 × 14 × 9 in56 × 36 × 23 cm	25 lb	Must fit under seat	Included
Allegiant Air	22 × 16 × 10 in56 × 41 × 25 cm	—	7 × 15 × 16 in	Costs extra
Sun Country Airlines	24 × 16 × 11 in61 × 41 × 28 cm	35 lb	17 × 13 × 9 in	Costs extra
Breeze Airways	22 × 14 × 9 in56 × 36 × 23 cm	35 lb	17 × 13 × 8 in	Costs extra
Avelo Airlines	22 × 14 × 9 in56 × 36 × 23 cm	—	17 × 13 × 9 in	Costs extra

Frontier Airlines
Carry-on
24 × 16 × 10 in (61 × 41 × 25 cm)
Weight
35 lb
Personal item
18 × 14 × 8 in
Cheapest fare
Costs extra
American Airlines
Carry-on
22 × 14 × 9 in (56 × 36 × 23 cm)
Weight
—
Personal item
18 × 14 × 8 in
Cheapest fare
Included
Delta Air Lines
Carry-on
22 × 14 × 9 in (56 × 36 × 23 cm)
Weight
—
Personal item
Must fit under seat
Cheapest fare
Included
United Airlines
Carry-on
22 × 14 × 9 in (56 × 36 × 23 cm)
Weight
—
Personal item
17 × 10 × 9 in
Cheapest fare
Not on some basic fares
Southwest Airlines
Carry-on
24 × 16 × 10 in (61 × 41 × 25 cm)
Weight
—
Personal item
16.25 × 13.5 × 8 in
Cheapest fare
Included
Alaska Airlines
Carry-on
22 × 14 × 9 in (56 × 36 × 23 cm)
Weight
—
Personal item
Must fit under seat
Cheapest fare
Included
JetBlue
Carry-on
22 × 14 × 9 in (56 × 36 × 23 cm)
Weight
—
Personal item
17 × 13 × 8 in
Cheapest fare
Included
Hawaiian Airlines
Carry-on
22 × 14 × 9 in (56 × 36 × 23 cm)
Weight
25 lb
Personal item
Must fit under seat
Cheapest fare
Included
Allegiant Air
Carry-on
22 × 16 × 10 in (56 × 41 × 25 cm)
Weight
—
Personal item
7 × 15 × 16 in
Cheapest fare
Costs extra
Sun Country Airlines
Carry-on
24 × 16 × 11 in (61 × 41 × 28 cm)
Weight
35 lb
Personal item
17 × 13 × 9 in
Cheapest fare
Costs extra
Breeze Airways
Carry-on
22 × 14 × 9 in (56 × 36 × 23 cm)
Weight
35 lb
Personal item
17 × 13 × 8 in
Cheapest fare
Costs extra
Avelo Airlines
Carry-on
22 × 14 × 9 in (56 × 36 × 23 cm)
Weight
—
Personal item
17 × 13 × 9 in
Cheapest fare
Costs extra

Head-to-head comparisons

Frontier vs American Frontier vs Delta Frontier vs United Frontier vs Southwest Frontier vs Alaska Frontier vs JetBlue Frontier vs Hawaiian Frontier vs Allegiant Frontier vs Sun Country Frontier vs Breeze Frontier vs Avelo

Frontier carry-on FAQ

Frontier Airlines allows a carry-on up to 24 × 16 × 10 in (61 × 41 × 25 cm), including wheels and handles. A carry-on costs extra on the Basic fare (bundles include one). Prices vary by route and date: roughly $25–$79 online, up to $100 at the gate.

Connecting on Frontier

How long a layover you need at its hubs.

Denver (DEN)Connection time guide

Airports Frontier flies from

Airport guides for the airports we cover: getting into town, terminals, lounges and parking.

Sources

Last verified Oct 17, 2026. Airlines change their rules without notice, so confirm with the airline before you fly.

Read how we collect and check this data, or tell us if something's out of date.

Cheap flights on Frontier and more

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