What website can I go to get cheap flights to Las Vegas

What website can I go to get cheap flights to Las Vegas?
I want to go from Buffalo, NY to Las Vegas I need to leave july 7 and return on the july 10 I need tickets for 3 people and I want to spend under 900 for the three of us Any website suggestions , where i can get a good deal? thanks so much , god bless
Air Travel - 2 Answers
Random Answers, Critics, Comments, Opinions :
1 :
southwest.com or cheaptickets or priceline or orbitz
2 :
www.airtran.com - great airline. great prices. have fun!
3 :
Try the websites for Jet Blue or Southwest. or www.Kayak.com. I do not think that you will get $300 per ticket but you will get close.