If you live anywhere close to an airport that Spirit Airlines flies, it is worth your while to check their website daily and sign up for their e-mails. I know, I know, budget airline, no frills, they charge you for checked and carry on baggage, and special seat requests, no snacks or movies, etc. However, if you just want to get to Vegas and are fine with sitting anywhere on the plane and pack creatively, Spirit's rates are absolutely the lowest. To get the lowest fares, you MAY have to join their $9 fare club, which costs $60 a year, so keep that in mind too. However, last week we booked our airfare for our Labor Day trip at $74 each way from Detroit, non-stop flights both ways. And didn't have to join the $9 fare club to get that price ($9 fare club rate was $64 each way) That's a four hour flight. How are they even paying for the fuel at those prices? As far as checking bags go, we plan to check one bag and travel light, light, light.