Frontier Airlines Carry-On Size Guide

Quick Answer: Frontier Carry-On Size

Frontier Airlines includes one personal item with each ticket, but a full-size carry-on bag usually costs extra unless it is included with your fare, bundle, or elite benefits. Your free personal item should not exceed 18 x 14 x 8 inches, including handles, wheels, and straps. A paid carry-on bag should not exceed 24 x 16 x 10 inches and may weigh up to 35 lbs.

If you are flying Frontier, the most important thing to understand is the difference between a free personal item and a paid carry-on bag. Frontier is a budget airline, so baggage rules and fees matter. Choosing the right personal item, carry-on suitcase, or checked bag before you arrive at the airport can help you avoid last-minute charges and boarding delays.

Updated: May 2026. Airline baggage rules can change, so always confirm current requirements with Frontier Airlines before your flight.

Frontier Airlines carry-on size guide image showing a personal item bag, carry-on luggage, Frontier baggage size limits, and budget airline packing guidance for travelers.

Frontier Airlines Carry-On Size at a Glance

Bag Type	Frontier Airlines Size Limit	Best Bag Choice
Personal Item	18 x 14 x 8 inches, including handles, wheels, and straps	Small backpack, laptop bag, compact tote, purse, or underseat bag
Carry-On Bag	24 x 16 x 10 inches, including handles, wheels, and straps; up to 35 lbs	Compact spinner carry-on, hardside carry-on, softside carry-on, or small duffel
Checked Bag	Most standard checked bags: 62 linear inches and up to 40 lbs	Lightweight checked luggage or medium checked suitcase

What Size Carry-On Can You Bring on Frontier Airlines?

Frontier's paid carry-on bag size limit is 24 x 16 x 10 inches. This measurement includes handles, wheels, and straps. Frontier also lists a carry-on weight limit of up to 35 lbs. A carry-on bag should fit in the overhead bin.

The big difference with Frontier is that a carry-on bag is usually not the same as your included free personal item. A full-size carry-on may require an added fee unless it is included with your fare, bundle, or loyalty benefits. If you know you need overhead bin space, it is usually better to add your carry-on before you get to the airport rather than waiting until boarding.

Shop carry-on luggage for Frontier flights and budget travel.

Frontier Airlines Personal Item Size

Frontier includes one personal item with each ticket. The personal item size limit is 18 x 14 x 8 inches, including handles, wheels, and straps. Your personal item must fit under the seat in front of you.

Common Frontier personal items include purses, small backpacks, laptop bags, briefcases, compact totes, and small underseat bags. Since Frontier may check personal item size during boarding, you should choose a bag that fits the limit without being forced into the sizer.

Shop underseat bags for Frontier Airlines flights.

Is a Carry-On Free on Frontier Airlines?

Frontier generally includes one personal item with each ticket, but a full-size carry-on bag usually costs extra unless it is included with your fare, bundle, or eligible status. This is one of the most important Frontier baggage rules to understand before packing.

If you are trying to travel as cheaply as possible on Frontier, pack everything into a personal item that fits under the seat. If you need more space, compare the cost of adding a carry-on versus checking a bag. The best option can depend on your route, trip length, and how much you need to pack.

Can You Bring a Backpack on Frontier Airlines?

Yes, you can usually bring a backpack on Frontier Airlines as your personal item if it fits within the 18 x 14 x 8 inch personal item limit and fits under the seat in front of you. A small backpack or slim laptop backpack is often one of the best Frontier personal item choices.

The key is not to overpack it. A backpack may fit when empty, but become too thick once you stuff the front pockets, water bottle pockets, or laptop compartment. If your backpack is larger than the personal item limit, Frontier may treat it as a carry-on bag and charge an additional fee.

Can You Bring an Underseat Bag on Frontier Airlines?

Yes. An underseat bag can work well as your Frontier personal item if it fits under the seat and stays within the 18 x 14 x 8 inch size limit. Underseat bags are useful for budget travelers because they help you pack efficiently without paying for overhead bin space.

The best underseat bags for Frontier are compact, organized, and not too rigid. Soft-sided underseat bags can sometimes be easier to fit under the seat than stiff bags, especially if you avoid overpacking them.

Does Frontier Weigh Carry-On Bags?

Frontier lists a paid carry-on weight limit of up to 35 lbs. Frontier also lists checked bag weight limits separately. Even if your bag fits the size limit, a carry-on that is too heavy may create issues if it is weighed or if it is difficult to handle safely.

A lightweight carry-on is a smart choice for Frontier because it helps you stay within the size and weight rules while making the bag easier to lift into the overhead bin.

What Happens If Your Frontier Personal Item Is Too Big?

If your Frontier personal item is larger than the allowed dimensions, Frontier says it may be subject to an additional charge. This is why the personal item is so important on Frontier. The free personal item is included, but it must fit the listed size limit and fit under the seat.

To avoid extra charges, measure your bag at home before you pack it. Include handles, wheels, straps, bulging pockets, and any outside attachments. If the bag is close to the limit when empty, it may become too large once fully packed.

Best Carry-On Luggage for Frontier Airlines

The best carry-on luggage for Frontier Airlines should fit within the 24 x 16 x 10 inch carry-on limit and stay under the 35 lb weight limit. Since a carry-on may cost extra on Frontier, choose one that gives you useful packing room without being oversized.

Best carry-on styles to consider:

Compact spinner carry-on luggage: Best for travelers who want overhead bin space and easy rolling.
Hardside carry-on luggage: Best for structure, protection, and a clean travel look.
Softside carry-on luggage: Best for exterior pockets and flexible packing.
Lightweight carry-on luggage: Best for staying under Frontier's carry-on weight limit.

Shop hardside luggage or shop softside luggage for Frontier travel.

Best Personal Item Bags for Frontier Airlines

For Frontier, the personal item may be the most important bag you bring. It is included with your ticket, it stays under the seat, and it can help you avoid paying for a carry-on if you pack light.

Good Frontier personal item choices include:

Small backpacks
Slim laptop backpacks
Compact underseat bags
Purses and handbags
Small totes
Briefcases and work bags
Soft-sided personal item duffels

For most Frontier travelers, a compact backpack or soft-sided underseat bag is the best choice because it gives you useful packing room while still being easier to fit under the seat.

Frontier Airlines Checked Bag Size

Frontier's standard checked bag limit is 62 linear inches, meaning length + width + depth combined. Frontier lists the standard checked bag weight limit as up to 40 lbs. Some bundles or elite benefits may allow higher checked bag weight limits, but you should always confirm your specific allowance before traveling.

If you are buying checked luggage for Frontier, lightweight luggage matters. A heavy suitcase eats into your 40 lb allowance before you pack anything. A medium lightweight checked suitcase is often safer than a large suitcase because it is easier to keep under the weight limit.

Shop checked luggage for Frontier trips and longer travel.

Best Checked Luggage for Frontier Airlines

The best checked luggage for Frontier should be lightweight, durable, and easy to keep under the checked bag weight limit. Since Frontier's standard checked bag allowance is often lower than some major airlines, bag weight matters even more.

For Frontier checked bags, consider:

Lightweight checked luggage: Best for staying under the 40 lb standard checked bag limit.
Medium checked luggage: Best all-around choice for avoiding overpacking.
Hardside checked luggage: Good for structure and protection.
Softside checked luggage: Good for exterior pockets and flexible packing.
Luggage sets: Good if you want matching carry-on and checked luggage options.

Shop luggage sets if you want a complete travel setup.

Frontier Airlines Carry-On Packing Tips

Use these tips before flying Frontier:

Measure your personal item including handles, wheels, straps, and outside pockets.
Keep your personal item at or under 18 x 14 x 8 inches.
Remember that a full-size carry-on may cost extra on Frontier.
Keep paid carry-ons at or under 24 x 16 x 10 inches and 35 lbs.
Use a soft-sided personal item if you want more flexibility under the seat.
Pack medication, valuables, electronics, keys, and documents in your personal item.
Use packing cubes to organize clothing and reduce bulk.
Check Frontier's current bag prices and rules before you leave for the airport.

Shop travel accessories like packing cubes, luggage tags, toiletry bags, and travel organizers.

Frontier Carry-On vs Personal Item

Your Frontier personal item and carry-on bag are different. Your personal item is included with your ticket and goes under the seat in front of you. A carry-on bag is larger, goes in the overhead bin, and usually requires an additional fee unless included with your fare or bundle.

Feature	Personal Item	Carry-On Bag
Typical Cost	Included with each ticket	Usually costs extra unless included with fare, bundle, or benefits
Size Limit	18 x 14 x 8 inches	24 x 16 x 10 inches
Typical Location	Under the seat	Overhead bin
Common Bag Type	Small backpack, purse, laptop bag, underseat bag	Small suitcase, spinner carry-on, duffel bag

Frontier Airlines Baggage FAQ

What is the free personal item size for Frontier Airlines?

Frontier's free personal item size limit is 18 x 14 x 8 inches, including handles, wheels, and straps. It must fit under the seat in front of you.

What is the carry-on size for Frontier Airlines?

Frontier's paid carry-on size limit is 24 x 16 x 10 inches, including handles, wheels, and straps. Carry-on bags may weigh up to 35 lbs.

Does Frontier include a free carry-on?

Frontier includes one personal item with each ticket. A full-size carry-on usually costs extra unless it is included with your fare, bundle, or eligible benefits.

Can I bring a backpack on Frontier?

Yes. A backpack can usually count as your personal item if it fits within the 18 x 14 x 8 inch size limit and fits under the seat in front of you.

Can I bring an underseat bag on Frontier?

Yes. An underseat bag can be a strong Frontier personal item choice if it fits under the seat and stays within the personal item size limit.

Do wheels and straps count in Frontier bag size?

Yes. Frontier's listed bag dimensions include handles, wheels, and straps, so measure the full outside size of your bag.

What size checked bag can I bring on Frontier?

Frontier's standard checked bag size limit is 62 linear inches, meaning length + width + depth combined. Standard checked bags may weigh up to 40 lbs unless a higher allowance applies.

Should I pay for a carry-on or use only a personal item on Frontier?

If you are taking a short trip and can pack light, using only a personal item may save money. If you need more clothing, shoes, toiletries, or travel gear, paying for a carry-on or checked bag may be more practical.

Best Luggage Setup for Flying Frontier Airlines

For the lowest-cost Frontier trip, the best setup is a compact personal item that fits under the seat. This works best for short trips, quick weekend travel, or travelers who pack very light.

For longer trips, you may want to add a paid carry-on or checked bag. If you check a bag, choose lightweight checked luggage because Frontier's standard checked bag weight limit is often 40 lbs.

Recommended setup:

Lowest-cost short trip: Personal item only
Weekend trip: Compact backpack or underseat bag
Longer trip: Paid carry-on + personal item
Family trip: Checked luggage + personal items
Vacation: Lightweight checked bag + compact personal item

Related Luggage Guides

Final Takeaway

Frontier Airlines baggage rules are simple once you understand the difference between a personal item and a carry-on. Your personal item is included with your ticket and should fit within 18 x 14 x 8 inches. A full-size carry-on is larger, may weigh up to 35 lbs, and usually costs extra unless it is included with your fare or benefits.

The best Frontier strategy is to decide before booking how much luggage you really need. If you can travel with only a personal item, you may save money. If you need more space, choose a carry-on or checked bag that fits Frontier's rules and add it before you get to the airport when possible.

Start here: shop underseat bags, shop carry-on luggage, or shop checked luggage for your next Frontier Airlines flight.

Baggage rules and fees can change. Always confirm current carry-on, personal item, checked bag, and fee details directly with Frontier Airlines before you travel.