Phoenix? Not exactly a march break hotspot. There is not much I can do for you there, charters are the only cheap flights during march break and they don't tend to be heading to Phoenix. If you want to go to Mexico/Carribean/Florida then I could help. I assume you've checked www.selloffvacations.com and talked to travelcuts, if you haven't you should. Outside of that call a real travel agent and ask them about charters sometimes you get lucky.