Don’t learn the airline’s rules at the gate.

Pick your airline before you leave for the airport. Check carry-on limits, basic economy rules, bag fees, kid policies, and customer-service options.

Check bag rules & fees
Heads up Rules, fees, and sizer enforcement change by airline, fare type, and route. Confirm with your airline before you leave for the airport.

Bag rules, sizes & fees by airline

Carry-on, personal item, and checked bag limits, plus current fees. Check one airline or compare two.

Select your airline

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Choose an airline above to see its carry-on rules, bag fees, kid policies, and who to call.

How it works

Choose

Select one airline, or two to compare side by side.

Check

See carry-on rules, fees, personal-item limits, and restrictions.

Shop

Use the luggage-size cards to find bags that fit those limits.

Pack smart

Confirm current requirements and avoid fees at the gate.

Before you board checklist

Run through the essentials before you leave for the airport.

Open the checklist

Passenger questions

Quick answers on carry-ons, fees, batteries, food, medication, and family travel.

Read the answers

Travel tips & guides

Baggage, carry-on, personal-item, safety, and family-travel guides.

Browse the guides

More from our network

Know Before You Board

Know Before You Board is not affiliated with or endorsed by any airline. Airline rules, fees, and enforcement change without notice — always confirm current requirements with your airline before you travel. Some links on this site are affiliate links; we may earn a commission at no extra cost to you.