Airline Carry-On Rules, Personal Item Sizes & Baggage Fees

Find your airline’s current carry-on size, personal-item allowance, checked-bag basics, and practical packing guidance before you fly. Carry On Authority turns baggage rules into clear, travel-ready answers—then helps you find luggage that fits the rule.

Important: airline rules, routes, fare classes, and prices can change. Every guide links to the airline’s current official policy. Always confirm the rule for your exact reservation before departure.

U.S. airlines

• American Airlines Carry-On Rules
• Delta Carry-On Rules
• United Carry-On Rules
• Southwest Carry-On Rules
• Frontier Carry-On Rules
• JetBlue Carry-On Rules
• Alaska Airlines Carry-On Rules

Mexico airlines for U.S. travelers

Mexico Airlines Carry-On Rules for U.S. Travelers explains the fare-based baggage differences travelers see most often on Mexico routes.

• Aeromexico Carry-On Rules
• Volaris Carry-On Rules
• Viva Aerobus Carry-On Rules

International airlines

• Ryanair Carry-On Rules
• easyJet Cabin Bag Rules

Start with the bag type that matches your flight

• 22 × 14 × 9 Carry-On Luggage for a common U.S. overhead-bin size.
• Personal Item Bags for under-seat travel essentials.
• Underseat Luggage for more structure without checking a bag.
• International Carry-On Luggage for stricter cabin limits abroad.

How to use these guides

1. Confirm whether your exact fare includes an overhead carry-on, a personal item, or both.
2. Measure the outside of your bag with wheels, handles and pockets included.
3. Use the official airline link before packing, especially for partner flights and international itineraries.
4. Choose a bag slightly below the stated maximum; “close enough” can still fail an airport sizer.