Frontier Airlines baggage fees: What to know and how to save

As a budget airline, Frontier Airlines offers low fares, but baggage fees can add up.

Flying with Frontier Airlines soon? Here’s how to navigate its policies and baggage fees for carry-ons and checked bags. We’ll break down the costs and size limits. And we’ve got some tips to avoid unexpected charges too.

Understanding Frontier’s baggage policy

Decoding the fees and restrictions

Frontier Airlines is a budget carrier known for its ultra-low fares, but it's crucial to factor in potential baggage fees, so you don’t get caught out.

When you fly with Frontier, you can bring one small personal item on board for free. It can’t be larger than 14” x 18” x 8” including handles, wheels, and straps. Examples include a purse, laptop bag, small backpack, or tote bag. To travel with a carry-on bag too – like a bigger backpack, small duffel bag, small suitcase, or small wheeled bag – you’ll need to pay for it. It must be a maximum of 24″ x 16″ x 10″, including handles, wheels, and straps and weigh no more than 35 lbs. Fees vary by route, but you can save by reserving a carry-on when you book instead of at the airport.

someone placing a passport into their carry-on bag.

Frontier Airlines carry-on baggage (paid for)

Frontier Airlines paid carry-on baggage with maximum dimensions of 24"H x 16"W x 10"D, a weight limit of 35 lbs, and adhering to the TSA 3-1-1 rule for liquids.

Frontier Airlines checked baggage

Size, weight, and cost considerations

If you’re flying on Frontier and you want more luggage for your vacation, you can pay for a checked bag.

Frontier allows checked bags up to 62 linear inches and 40 lbs, with the exact cost depending on your flight route. You can add a checked bag to your booking online up to 60 minutes before your flight, for both domestic and international flights. Prices will be much lower than paying at the airport. Use Frontier’s Bag Price Checker to understand the exact costs to add bags to your flight, as these can often change. Always weigh and measure your bags before you travel to avoid any surprises at the airport.

You’ll pay fees for any oversized or overweight checked bags. Oversized checked bags between 63 and 110 linear inches are subject to a $75 fee per bag, per flight direction. Bags that exceed 110 linear inches cannot fly.

In the case of overweight luggage, Frontier Airlines’ baggage fees are as follows:

  • $75 fee per bag, per direction for bags weighing 41-50 lbs.

  • $100 per bag, per direction for bags that weigh 51-100 lbs.
    Luggage over 100lbs can’t fly.

colorful suitcases

Tips for saving on Frontier baggage fees

Book your bags online in advance for savings.
Pack light and use your free personal item.
Join FRONTIER Miles to cut costs on extra bags.

FRONTIER Miles: Your key to perks

Unlocking savings and benefits

The FRONTIER Miles loyalty program is free to join and rewards you when you fly with this low-cost carrier. You’ll earn 10x miles and 10x points for every $1 spent on qualifying Frontier purchases, which you can redeem for free flights, bags, and seat selection. If you plan to fly often with Frontier, it’s a smart move to join the FRONTIER Miles loyalty program.


It’s easy to redeem your miles. Simply log in to your account and search by miles rather than price. You’ll then be able to browse flights to see the options available to you. Once you’ve chosen your flight, you can go ahead and book. You’ll need a minimum of 10,000 miles to book a flight.

If there’s activity on your FRONTIER Miles account, your miles won’t expire. This includes making purchases on your FRONTIER Airlines World Mastercard. If 12 months pass following your last activity, your miles will expire.

Should your miles be about to expire, you can make a purchase to continue accruing miles, redeem your miles if you’ve accrued enough, or donate them to a non-profit charitable organization.

A man watching an airplane taking off from an airport window.

Frequently asked questions about Frontier Baggage

Yes, you can bring a small backpack as your personal item on Frontier, if it meets the size requirements (14"" H x 18"" W x 8"" D).

Frontier does charge fees for overweight bags – even if your bag is slightly overweight. Make sure you check the Frontier website for current rates and weight limits before you fly. It also makes sense to weigh and measure your bag before you travel to the airport.

Once you’ve booked your flight, you can add bags to your reservation up to 60 minutes before you fly. It’s easy to do, and it’s all done online through the ""Manage My Booking"" section on Frontier's website.

No, like many budget carriers, Frontier doesn’t offer free checked bags. If you want to check a bag, you’ll need to add it to your booking. Fees usually depend on your route.

By joining FRONTIER Miles, you’ll accumulate miles and loyalty points (10x miles and 10x points for every $1 spent on qualifying Frontier purchases). You can use these to cut the costs of adding bags when you next fly with Frontier.

Contact Frontier's baggage claim department as soon as possible to report any damage.

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