International jumpseating is a great benefit. Although you can only do it on US carriers, not codeshared flights. You cannot physically sit in the jumpseat (although that might change soon with recent FAA change in policy) but they will put you in the back if a seat is available. But remember, even a buddy pass has higher seniority than you. As for American, there are a few regionals who can jumpseat internationally. I know Piedmont and PSA and I believe Skywest can. There is a list somewhere online. Search APC to find out if your carrier is authorized.

Some advise cause I've done it alot, arrive really early in a foreign country!!! About 3 hrs normally work. I jumpseated out of Bolivia on American and the flight went La Paz, Bolivia-Santa Cruz, Bolivia- Miami. I got there 2hrs before departure and get checked in 5 minutes before the flight was scheduled to leave. Luckily it was delayed an hour and I made it. If possible, have the agent in the US list you for the return. I've jumpseated out of India several times and to get to the ticket counter, you need an itinerary. Only way to get one jumpseating is at the ticket counter so security won't let you in to the ticket counter even with your ID. You do also have to pay any departure taxes for the leg into the US. It's free to leave they just charge you to get back in.

Also to list leaving the US you normally can't just go to the departure gate and have the agent list you. Most of the time you must go to some sort of special services. In ATL I use the ticket counter in the E concourse right at the top of the escalators. Showed up 45 minutes and was able to get listed on a flight to Dubai. In EWR there is an employee travel office outside security. Go to the southern most checkpoint and look left. It's hidden but its there. For American, you have to list online so then you can just go to the actual gate since you are already listed. Good luck and have fun!! Remember to talk to the Captain and take the flight attendants chocolate or something sweet you bought locally. It's gotten me 1st class on several occasions after the boarding door was closed.