Southwest Airlines, primarily a domestic airline throughout its over 50-year history, is looking at expanding to overseas markets, a further sign of that the once-distinctive Texas airline is following the path of rival carriers.

Southwest Airlines has long been the largest point-to-point airline in the United States, giving it a competitive advantage over airlines like Delta and United by offering direct flights to more cities.

For the past week, Southwest Airlines has been offering a limited-time free perk to all of its Rapid Rewards members on all flights, testing a possible permanent change. However, that perk will be coming to an end this week as the trial period ends.