Boarding Sizer · 2026 ● Conditional

Patagonia Black Hole Wheeled Duffel 40L on Frontier Airlines

Bag 21.75×14.5×11" vs sizer 24×16×10"

≈ Tight Fit

Overhead Carry-On Verdict

Fits, if packed soft.

🎒 Backpacker's tip: The Patagonia Black Hole Wheeled Duffel 40L is soft-shell, so its depth runs ~1.5" over Frontier Airlines's limit — but it squeezes into the metal sizer fine as long as you don't over-stuff the front pockets.

Personal Item · Under-Seat ✕ Too big

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Route FRO · PAT

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The verdict, explained

At 21.75x14.5x11", the Patagonia Black Hole Wheeled Duffel 40L is over Frontier Airlines's 24x16x10" limit by 1" on its shortest side, but it is a soft-sided bag. Cinch the compression straps and avoid overstuffing the outer pockets and it will squeeze into the metal sizer; pack it bulging, though, and a gate agent may flag it. On Frontier Airlines: Personal item free; carry-on paid — gate price is the highest. It is too large for Frontier Airlines's under-seat personal-item space, so it has to go overhead or be checked.

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Dimension Breakdown inches

Axis	Bag	Sizer	Margin
Length	21.75"	24"	+2.2"
Width	14.5"	16"	+1.5"
Height	11"	10"	-1"

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Frequently asked

Does the Patagonia Black Hole Wheeled Duffel 40L fit Frontier Airlines's carry-on size limit?

Just about. The Patagonia Black Hole Wheeled Duffel 40L is slightly over Frontier Airlines's 24x16x10" limit, but as a soft-sided bag it compresses into the sizer when packed sensibly.

What is Frontier Airlines's carry-on size limit?

Frontier Airlines allows carry-on bags up to 24x16x10" (length x width x height), including wheels and handles. Personal item free; carry-on paid — gate price is the highest.

Can the Patagonia Black Hole Wheeled Duffel 40L be a personal item on Frontier Airlines?

No. At 21.75x14.5x11" it is too big for Frontier Airlines's under-seat personal-item space (18x14x8"); it travels as a carry-on instead.

Bags that clear Frontier Airlines's sizer

Alternatives that fit the 24×16×10" limit outright.

The Patagonia Black Hole Wheeled Duffel 40L on other airlines

Same bag, different sizers — check before a connecting or return flight.

The bag

Patagonia Black Hole Wheeled Duffel 40L

Wheeled Duffel · 21.75×14.5×11"

The Patagonia Black Hole Wheeled Duffel 40L is a soft-sided wheeled duffel measuring 21.75x14.5x11 inches. As a soft-sided bag it can compress slightly to squeeze into a tight gate sizer.

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💡 At the gate

Airlines measure at the widest external point — wheels, handles, and bulging pockets all count. Pull soft-bag compression straps fully tight before you size it.