This post is part of a four-part series. In Part 1, we looked at the mechanics of the AAdvantage program. In Part 2, we’ll look at the mechanics of a stopover, including how to use them to get free oneway trips within North America. In Part 3, we’ll value specific AAdvantage awards.

This post is part of a four-part series. In Part 1, we will look at the mechanics of the AAdvantage program. In Part 2, we’ll look at the mechanics of a stopover, including how to use them to get free oneway trips within North America. In Part 3, we’ll value specific AAdvantage awards. In Part 4, I’ll put a number on one AAdvantage mile.

1) American Airlines has two region-to-region charts, one for travel on American Airlines and one for travel on its partners.

Below is a list of all possible North American international gateway cities when using American Airlines AAdvantage miles. Why are these important? As we'll learn in my series on the value of AAdvantage miles, when traveling on an AAdvantage award from North America to any other region, a free stopover is allowed at the North American gateway city.