United Airlines Baggage Fees And How To Avoid Them – Forbes Advisor
United Baggage Allowance - Luggage Delivery Company
Five myths about carry-on bags
Personal Item Size & Weight Rules for 56 Major Airlines
A Carry-on Luggage Size Guide by Airline
United Airlines' carry-on luggage guide
All you need to know about United Airline's baggage policy - Traveler's Edition
TSA Carry-On Restrictions You Need to Know - NerdWallet
These Rolling Carry-On Bags Are Small Enough for the Tightest Airline Size Limits
Carry-on vs Checked Baggage — Which is Best for Travel?
Airplane Carry-On Luggage Rules: Everything You Can (and Can't) Bring in a Carry-On Bag