As with the poster above, is this even possible? I thought Southwest wasn't part of any of the major alliances.
I'm based in Japan myself and have a similar dilemma with miles, as it costs me just 20,000 to fly anywhere in East Asia, but 80,000-100,000 to fly across the Pacific. I end up using the miles for short vacations within East Asia, and just pay for the Japan-N.America filghts in cash, as I end up getting more value out of taking 5 Asian vacations than just the one flight back home.