What are the procedures to bring a dog on the plane?

Bonnie asked: Hi everyone. I’m bringing my dog (shih tzu) on the plane with me. But I want to know the exact procedures so I don’t get any surprises at the airport. I will be travelling from Canada to the US via American Airlines. I’ve checked with the airline about the prices and everything.. But [...]
Carry on baggage?

John J asked: American Airlines says “The one carry-on bag must fit in an overhead compartment or under the seat. It should not exceed 45 linear inches (length + width + height) or weigh more than 40 lbs/18 kgs.” When it says it should not exceed 45 inches, does that mean no single dimension should [...]
