Allegiant Money Saving Hack On Flights From Boise After living in Boise for three years I made what I thought was a good move even though my friends who grew up here still say was a big mistake. I moved to Phoenix, Arizona. While the career move was great I certainly missed Boise and all of my close friends so as a result I ended up flying back and forth every other weekend for 7 years. Why didn't anyone tell me about this Allegiant money saving hack on flights from Boise to Phoenix (Mesa, Az)! I started flying on American airlines then eventually decided that I was flying so much that I needed to take advantage of the points systems that Southwest airlines offered. I spent the better part of 6 years flying on Southwest and paying and average of $300 round trip to Phoenix. Quick math says that I spent about $6000 per year. If I had known I would of paid half that flying Allegiant because they offer $150 roundtrips. I would of saved $3000 per year over 6 years... that's $18,000.