Allegiant personal item size checker

Allegiant's free personal item can be up to 18 x 14 x 8 inches, including wheels and handles. A carry-on can be up to 22 x 16 x 10 inches and costs extra.

Checked October 2026. See the full Allegiant bag fees and rules.

Quick answers

What size is a personal item on Allegiant?

Up to 18 x 14 x 8 inches, including wheels and handles.

What size carry-on does Allegiant allow?

Up to 22 x 16 x 10 inches. Carry-ons cost extra on Allegiant.

Is a backpack a personal item on Allegiant?

Yes, if it fits within 18 x 14 x 8 inches and under the seat. Measure it packed, with straps and pockets.

Other airlines: Frontier, United, American, Southwest, JetBlue, Delta, Alaska.