I plan on going to Catania, Sicily (Italy) from Washington, D.C. on December 13th and returning January 11th with United & Lufthansa. The flight leaves D.C. with United and then goes to Rome, Italy. The connecting flight after that and the entire return trip is all with Lufthansa.
Do I have to purchase my dog’s ticket with United, Lufthansa, or both and would it be a flat rate for the entire trip or would I need to buy him a ticket for each stop that is made to switch planes? Anyone have an estimate on how much this will cost since the dog is only ~ 5 lbs and hopefully in-cabin with me? Thanks!

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