Frontier Checked Bag Policy | Size, Weight Limits & Fees (2026)
Packing for a Frontier flight is easy to get wrong, because the airline’s checked bag limit is lighter than what many travelers expect. The frontier checked bag policy caps standard bags at 40 pounds under the frontier checked bag weight limit and 62 linear inches for the frontier checked bag size, and going even slightly over can trigger a hefty frontier overweight bag fee. This guide explains the current frontier baggage fees, who qualifies for a frontier free checked bag, and how to pack smart so you aren’t paying extra at the airport.
Quick Answer: Frontier Checked Bag Policy Snapshot
A standard Frontier checked bag must weigh 40 pounds or less and measure no more than 62 linear inches (length + width + depth) under the frontier checked bag policy. The checked bag itself carries a fee that varies by route, season, and purchase timing, and prices are typically higher at the airport.
| Policy Detail | What to Know |
|---|---|
| Maximum weight | 40 lb per standard checked bag (official frontier checked bag weight limit) |
| Maximum size | 62 linear inches (length + width + depth) for frontier checked bag size |
| Overweight fee (41-50 lb) | +$75 (standard frontier overweight bag fee) |
| Overweight fee (51-99.99 lb) | +$100 per Frontier’s FAQ (some third-party guides list $129) |
| Over 99.99 lb | Not accepted |
| Oversize fee (63-110 linear inches) | +$75 |
| Over 110 linear inches | Not accepted |
| Free checked bag exceptions | Active-duty military, Elite Platinum and Diamond members, eligible FRONTIER World Mastercard holders (frontier free checked bag allowance) |
| No-charge items | Medical devices, wheelchairs, essential baby gear, strollers, and car seats |
| Best safe choice | Pack to 38-39 lb and buy your bag online in advance to save on frontier baggage fees |
| Last verified | October 2026 |
Official Policy Verification & Source Check
Official policy source: Frontier Airlines FAQ, “What are the sizes and weight limits for bags?” (faq.flyfrontier.com)
Source type: Official airline website, plus third-party travel guides
Last checked: October 2026
Confidence level: High for weight limits, size limits, and the fee tiers listed on Frontier’s FAQ. Medium for base checked bag pricing and free-bag eligibility details, which vary and come partly from third-party guides.
Important notes: One third-party guide lists a $129 fee for 51-100 lb bags, while Frontier’s current FAQ lists +$100 for 51-99.99 lb. We follow the airline’s own wording, but check the live fee calculator before you fly.
How We Check This Policy: We start with Frontier’s own baggage pages and FAQ, then compare them against travel guides and traveler discussions. Where sources disagree, we favor the airline and flag the difference. Airline fees change often, so confirm your exact price during booking.
Official Frontier Checked Bag Policy Overview
Frontier allows standard checked bags up to 62 linear inches for the frontier checked bag size and 40 pounds under the official frontier checked bag weight limit. That weight limit is lower than the 50-pound limit common on many other airlines, which is why overweight fees catch so many first-time Frontier flyers off guard.
If your bag goes over, Frontier charges extra. A bag weighing 41 to 50 pounds adds a $75 frontier overweight bag fee, and a bag weighing 51 to 99.99 pounds adds $100 on Frontier’s FAQ. Bags over 99.99 pounds aren’t accepted. For size, a bag measuring 63 to 110 linear inches adds $75, and anything beyond 110 linear inches isn’t accepted under the frontier checked bag policy.
The base price of frontier baggage fees isn’t fixed. It depends on your route, travel dates, and when you buy. Adding bags during your original booking is typically cheapest, and prices rise later, especially at the airport counter.
What Makes the Frontier Policy Different
Many legacy airlines allow 50-pound checked bags, so travelers often pack to that number out of habit. Frontier’s 40-pound cap is ten pounds lower, which means a bag that’s fine on one airline can cost you a steep frontier overweight bag fee on Frontier.
Frontier also sells bags separately from the base fare, so unlike with some airlines, a checked bag isn’t included unless your fare bundle covers it. Travelers who check what they need ahead of time usually pay the least in frontier baggage fees, while last-minute decisions at the airport tend to cost the most.
Checked Bag Size and Weight Limits
Standard Checked Bag
One standard checked bag must be 62 linear inches or less for the frontier checked bag size and weigh 40 pounds or less. To measure, add the length, width, and depth, including handles and wheels.
Overweight Bags
| Bag Weight Tier | Extra Fee (per Frontier FAQ) |
|---|---|
| Up to 40 lb | No overweight fee (standard limit) |
| 41-50 lb | +$75 frontier overweight bag fee |
| 51-99.99 lb | +$100 frontier overweight bag fee |
| Over 99.99 lb | Not accepted |
Oversize Bags
| Bag Size Tier | Extra Fee (per Frontier FAQ) |
|---|---|
| Up to 62 linear inches | No oversize fee (standard frontier checked bag size) |
| 63-110 linear inches | +$75 |
| Over 110 linear inches | Not accepted |
Carry-On and Personal Items for Comparison
If you’re trying to avoid checking a bag, Frontier also lists limits for what you bring on board. Personal items must be no larger than 14″ H × 18″ W × 8″ D, including handles, wheels, and straps. Carry-on bags can be up to 24″ H × 16″ W × 10″ D and weigh no more than 35 lb. Both categories have their own pricing rules, so check your fare before assuming either is included.
Medical, Mobility, and Baby Items
Some items can be carried or checked at no charge and don’t count toward your baggage allowance, including medical devices, wheelchairs, and essential baby gear. Strollers and car seats can also be checked at no extra charge. Frontier publishes a Special Items Policy PDF with more detail on fragile and special items.
Who Gets Free Checked Bags on Frontier?
Eligibility can change, so confirm details with Frontier before you travel. Based on current guidance, travelers may qualify for a frontier free checked bag:
- Active-duty military: Personnel (armed forces, reserves, and National Guard) with a Common Access Card can check two bags up to 50 lb each, with oversize and overweight fees waived.
- Frontier Elite Platinum and Diamond members: These members, along with traveling companions, receive free checked luggage.
- FRONTIER Airlines World Mastercard: Primary cardholders who book directly through Frontier get free checked bag benefits.
- Bundle fares: Higher-tier bundles, such as the Business Bundle, include checked bags.
- Infants and children: Strollers and car seats are checked at no extra charge.
Prohibited and Restricted Items
Frontier does not accept bags over 99.99 lb or over 110 linear inches under the frontier checked bag policy. Sporting equipment, musical instruments, bicycles, and firearms follow separate rules, and Frontier maintains dedicated FAQ pages for each. If you’re packing any of these, check the specific policy before heading to the airport. Standard airline safety rules on hazardous materials also apply.
How Baggage Check-In and Screening Works
Bags are checked at the airport counter or kiosk, weighed, and measured. If your bag is over the limit, you’ll pay the applicable fee on the spot, and airport prices are typically higher than online frontier baggage fees. Staff may ask you to repack or move items to avoid a higher fee.
Checked bags also go through security screening separate from your carry-on. Pack liquids and restricted items in line with TSA rules, and leave locks off unless they’re TSA-approved.
Packing Strategy to Avoid Extra Fees
- Weigh your bag at home. Use a luggage scale or a bathroom scale before you leave to ensure you are under the frontier checked bag weight limit.
- Aim for 38-39 lb. A small buffer protects you from an unexpected frontier overweight bag fee if the airport scale reads differently.
- Measure the full bag. Include wheels and handles when adding up length, width, and depth to stay within the 62-inch frontier checked bag size.
- Buy your bag in advance. Add it during booking or through your online reservation to pay the lowest frontier baggage fees.
- Move heavy items to your carry-on or personal item. Do this only if your carry-on is covered and within its own limits.
- Leave room. Overstuffed bags can exceed the size limit even when the weight is fine.
Reducing Airport Anxiety About Bag Fees
Fee surprises are the main source of airport stress with budget airlines. The easiest fix is to know your numbers before you leave: your bag’s weight, its linear inches, and what you’ve already paid for in frontier baggage fees. Travelers in online forums consistently stress checking weight beforehand, because Frontier enforces the 40-pound limit and charges for even one pound over under the frontier checked bag policy.
Day-of Travel Tips From BagPolicyInfo
- Weigh again before you leave: Items picked up or bought on the trip can push a bag over the limit on the way home.
- Arrive early: Repacking at the counter takes time.
- Carry a collapsible bag: If you’re going to be over, a spare bag lets you shift weight rather than pay a fee.
- Keep valuables with you: Medications, electronics, and documents belong in your personal item or carry-on, not your checked bag.
- Save your receipt: Keep proof of prepaid bags in case of any dispute.
Category-Specific Packing Tips
Families with young children: Strollers and car seats check at no charge, and essential baby gear doesn’t count toward your allowance. Check with Frontier for details on what qualifies.
Frequent travelers: If you check a bag regularly, look at Frontier’s bundles, elite status benefits, and the World Mastercard to see if a frontier free checked bag perk would save you money.
Military travelers: Active-duty personnel with a Common Access Card can check two free bags up to 50 lb each with fees waived.
Travelers with medical needs: Medical devices and wheelchairs can be carried or checked at no charge. Review the Special Items Policy for details.
Heavy packers and long-trip travelers: If you need more than 40 lb, compare the frontier overweight bag fee against the cost of adding a second bag. Sometimes splitting your weight across two bags is cheaper.
Before You Fly Checklist
- My checked bag weighs 40 lb or less
- My bag measures 62 linear inches or less
- I’ve added my bag during booking or in advance
- I’ve checked whether I qualify for a free bag
- I’ve confirmed my price using Frontier’s bag price tool
- I’ve moved valuables and medications to my carry-on
- I’ve left room for souvenirs on the return trip
- I’ve reviewed my flight’s carry-on and personal item rules
Frontier Checked Bag Policy FAQs
What is the weight limit for a Frontier checked bag?
The standard frontier checked bag weight limit is 40 pounds (18.1 kg).
What is the size limit?
The maximum frontier checked bag size is 62 linear inches, calculated as length + width + depth.
How much is the overweight fee?
Per Frontier’s FAQ, the frontier overweight bag fee is +$75 for bags 41-50 lb and +$100 for bags 51-99.99 lb. Bags over 99.99 lb aren’t accepted.
How much is the oversize fee?
An oversize fee of +$75 applies for bags measuring 63-110 linear inches. Bags over 110 linear inches aren’t accepted.
How much does a checked bag cost?
Base frontier baggage fees vary by route, season, and when you purchase. It’s usually cheapest at booking and more expensive at the airport counter.
Do I get a free checked bag?
Possibly. Active-duty military, Elite Platinum and Diamond members, eligible FRONTIER World Mastercard holders, and bundle purchasers may qualify for a frontier free checked bag.
Are strollers and car seats free?
Yes, they can be checked at no extra charge.
Are medical devices and wheelchairs counted in my allowance?
No. They can be carried or checked at no charge and don’t count toward your baggage allowance under the frontier checked bag policy.
Can I buy a bag at the airport?
Yes, but prices are typically higher than buying in advance online.
Where can I check exact prices?
Use the bag price tool on Frontier’s website, or review the airline’s optional services page.
Related Bag Policies
Flying with other major airlines or packing sports luggage for your next trip? Explore our comprehensive airline baggage guides:
- Frontier Airlines Baggage Policy Guide
- United Airlines Checked Bag Policy Guide
- Southwest Airlines Baggage Policy Guide
- Southwest Airlines Carry-On Bag Policy Guide
- Delta Airlines Ski Bag Policy Guide
Conclusion
The frontier checked bag policy is simple but strict: 40 pounds, 62 linear inches, and fees for anything beyond. Weigh and measure your bag at home, buy it in advance to avoid higher frontier baggage fees, and keep a small buffer under the limit. If you qualify for a frontier free checked bag through military status, elite membership, or a Frontier credit card, make sure you take advantage of it.
Disclaimer: Airline policies and fees can change at any time and may vary by route, fare, and date of travel. Always confirm the latest baggage rules and pricing on the official Frontier Airlines website before you fly. BagPolicyInfo.com is not affiliated with Frontier Airlines.
