StudentUniverse - www.studentuniverse.com

StudentUniverse.com definitely has the cheapest prices around only if you're a student. You have to verify through their system but after that, there aren't many sites around that can offer a ticket as cheap as them.

They've also been in service for years so they are definitely trustable. Service is pretty stellar but the only downside is that they are not open 24 hours.

There is a certain time you can call so if you're stuck somewhere when you really need them, they might be closed.

Also, they added a new deals section where you can get cash back on a ton of stuff which is definitely a plus!

Overall, they get 5 stars!