Frontier Carry On Size (2026)

Frontier’s published carry-on limit is 24 × 16 × 10 inches (handles and wheels included) and 35 lb (15 kg). A full-size carry-on is paid on Basic and Standard and included on Economy, Premium, and Business. Every fare still includes one free personal item at 18 × 14 × 8 inches under the seat. Carry-on prices vary by flight: check flyfrontier.com or the booking flow, and do not rely on a fixed dollar amount from a blog.

This page follows Frontier’s bag options and bag sizes and weight FAQ. Size and weight limits on this page are the stable facts; carry-on and checked bag prices change with route and purchase timing. Our baggage fees page explains how Frontier’s changing prices and its published overweight and oversize charges work.

Contract of Carriage cm: Frontier’s Contract of Carriage (PDF) has listed 114 cm for carry-on. That figure is almost certainly wrong for a 24-inch bag (24 in is about 61 cm). BagRule publishes inches as the main figure and converted cm as secondary, and does not treat 114 cm as the real linear limit until Frontier corrects or clarifies it.

Compared with common mainline published maximums (often 22×14×9 on Delta and United), Frontier’s published carry-on box is larger, but on Basic and Standard that overhead bag is usually paid, so “larger” does not mean “free.”

• Always free: one personal item (18 × 14 × 8 in) under the seat on every fare, including Basic.
• Basic and Standard: full carry-on is paid. Price comes from Frontier’s Bag Price Checker or booking path and typically rises from online booking to the airport to the gate. Exact prices vary by flight; check optional services and the bag charges FAQ for current amounts.
• Economy: carry-on included; checked bags still usually paid unless you add them.
• Premium: carry-on included plus Board First (boarding priority and overhead access, not a size rule).
• Business: carry-on included plus a checked-bag allowance (typically two checked bags up to 50 lb each; see our baggage fees page).
• Military: Frontier’s published military bag benefit is generally 1 personal item, 1 carry-on and 2 checked bags free; check eligibility on Frontier’s official pages before travel.

Current bundle names are Basic, Standard, Economy, Premium and Business; details are on Frontier’s bundle and save page.

1. Sizer and gate enforcement are strict. Bags that fail the sizer are charged as a carry-on, forced to check, or both. Measure including wheels and handles before you leave home.
2. An oversized personal item counts as a carry-on. If your “under seat” bag won’t fit 18 × 14 × 8, expect carry-on pricing, often highest at the gate.
3. After you already paid for a carry-on, if the overhead bins are full, Frontier’s bag options page has allowed a free gate-check in that situation; check the current wording on the official bag options page before you travel.
4. Board First (Frontier has published prices from roughly low single digits to the low teens in US dollars) is about boarding order and overhead access, not a substitute for measuring your bag.
5. The 114 cm figure in the Contract of Carriage is not the size to go by. The published size is 24×16×10 in, and the Contract of Carriage centimeter line is treated as unofficial until Frontier clarifies it.
6. Prices climb over time: buying the same bag later almost always costs more than adding it at booking.

• If you need overhead space, choose Economy (or higher) or add the carry-on early through the Bag Price Checker or Manage Booking, not at the airport or gate.
• Pack to the free 18 × 14 × 8 personal item only when flying Basic and traveling light.
• Measure the packed bag (not empty marketing size); stay at or under 24 × 16 × 10 in and 35 lb.
• Soft-sided bags that expand past the sizer fail at the gate even if they “look” fine at home.
• For checked-bag overweight and oversize charges and the free bags for Business and Military, use the Frontier baggage fees page.

Look for hard or soft carry-ons marketed at or under 24 × 16 × 10 inches including wheels and handles, up to 35 lb; confirm with a tape measure before you fly. Soft under-seat bags at or under 18 × 14 × 8 (a safer shopping target is 17 × 13 × 8 or smaller when packed) cover the free personal-item slot on Basic. Measure when packed; the airport sizer is the rule.

See Frontier personal item and Frontier baggage fees.

What is the Frontier carry-on size?
24 × 16 × 10 inches, including handles and wheels, up to 35 lb. It is paid on Basic and Standard and included on Economy, Premium and Business.

Do wheels and handles count in the Frontier sizer?
Yes. Exterior dimensions include handles, wheels, and straps. Soft expanders that push past 24 × 16 × 10 fail even if the empty bag looked fine.

Does Frontier charge for carry-on bags?
Yes on Basic and Standard. Economy, Premium, and Business include a carry-on. The exact fee varies by flight; check flyfrontier.com or the Bag Price Checker when you book.

Does Basic include a carry-on on Frontier?
No. Basic includes a free personal item (18 × 14 × 8 in) only. A full-size carry-on is paid unless you upgrade or buy the bag add-on.

What if my bag doesn’t fit the Frontier sizer?
Expect a carry-on fee, a gate check, or both. Enforcement is strict, so measure before you fly.

What is Frontier’s personal item size?
18 × 14 × 8 inches, free under the seat on all fares including Basic. Details: Frontier personal item.

Is Frontier carry-on larger than Delta or United?
Frontier’s published max (24 × 16 × 10) is larger than the common 22 × 14 × 9 on Delta and United, but Frontier often charges for that bag on Basic and Standard, so do not assume free overhead space.

• Frontier baggage fees
• Frontier personal item size
• Delta carry-on size
• United carry-on size

Fees, fare bundles, and size rules change. Confirm the latest limits and live bag prices on flyfrontier.com before you travel. BagRule is an independent publisher and is not affiliated with Frontier Airlines.