Is there curbside check infor international flights for American airlines?

I've never flown international out of Phx. I would suggest calling American for the answer.

No, there is no curbside checkin for international flights. Curbside is for domestic flights only.

No curbside checkin for international flights for American Airlines as of December 27, 2019. We could have dropped off the luggage and passenger curbside, but they would have had to go inside and get checked in. We wound up parking the car in the garage and then taking the luggage and passenger down to level 2 to checkin. A lot less stressful than curbside.

Yes