In the late winter through early spring, we continually fly back and forth from the U.S. to the Caribbean. Savvy island-goers can often find empty legs in those prime early months of the year.
In the summer, there are often empty legs coming back from Europe. There's high demand in the U.S. to fly one-way to the old world for extended holidays. Flyers in locations like London, Edinburgh, Amsterdam, and Paris can often find deals for traveling back stateside.