Bag fees and carry-on rules on US airlines

How to avoid surprise charges at the gate and when a checked bag is cheaper than carry-on stress.

Published 2026-04-066 min read

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In this guide

Weigh before you leave home

Airport scales are unforgiving. If you are near the weight limit, wear your heaviest layers and move dense items to a personal item if allowed.

Personal item vs carry-on

Know the linear inches or dimensions your ticket includes. Basic economy often tightens this.

Pay online when possible

Checked bag fees are sometimes higher at the airport than online in advance.

Sports and odd items

Golf clubs, skis, and instruments have special rules—check the airline’s “special items” page before you pack.

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