Frontier carry-on size

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 fees are dynamic — check flyfrontier.com or the booking flow; do not rely on a static blog dollar amount.

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 ≈ 61 cm). BagRule publishes inches as primary and converted cm as secondary — do not treat 114 cm as the real linear limit until Frontier corrects or clarifies it.

Compared with common mainline published maxes (often 22×14×9 on Delta and United), Frontier’s published carry-on box is larger — but on Basic/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 / Standard: full carry-on is paid. Price comes from Frontier’s Bag Price Checker / booking path and typically rises from online booking → airport → gate. Exact dollars are dynamic — confirm live on optional services and the bag charges FAQ.
• Economy: carry-on included; checked bags still usually paid unless you add them.
• Premium: carry-on included plus Board First (boarding priority / overhead access — not a size rule).
• Business: carry-on included plus checked-bag allowance (see baggage fees — typically two checked bags up to 50 lb each).
• Military: Frontier’s published military bag benefit is generally 1 personal + 1 carry-on + 2 checked free — confirm eligibility on official pages before travel.

Use current bundle names only: Basic, Standard, Economy, Premium, Business (see bundle & save).

1. Sizer and gate enforcement are strict. Bags that fail the sizer are treated as a carry-on (fee) and/or forced to check. Measure including wheels and handles before you leave home.
2. Oversized personal item = 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 language has allowed a free gate-check in that situation — confirm the current wording on the official bag-options page at travel time.
4. Board First (Frontier has published roughly low single-digit to low-teens USD ranges) is about boarding order / overhead access, not a substitute for measuring your bag.
5. Do not lead with CoC 114 cm. Prefer 24×16×10 in; treat the CoC centimeter line as unofficial until Frontier clarifies it.
6. Dynamic ladder: 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 via Bag Price Checker / 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/oversize math and Business/Military freebies, 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, and confirm with a tape measure before you fly. Soft under-seat bags at or under 18 × 14 × 8 cover the free personal-item slot on Basic.

Disclosure: As an Amazon Associate, BagRule may earn from qualifying purchases. Product cards are optional suggestions — always measure against Frontier’s sizer.

(Soft Amazon: up to 1–2 product cards may be placed here in production — carry-on compliant + optional under-seat personal item. No hard sell.)

What is the Frontier carry-on size limit?
24 × 16 × 10 inches, including handles and wheels, with a 35 lb (15 kg) weight limit. Prefer inches; converted cm is about 61 × 41 × 25. The CoC 114 cm figure should not be treated as the primary limit until Frontier clarifies it.

Does Frontier charge for carry-on bags?
Yes on Basic and Standard. Economy, Premium, and Business include a carry-on. The exact fee is dynamic — check flyfrontier.com / 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 and/or gate check. Enforcement is strict — 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/Standard, so do not assume free overhead space.

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.