TMZ spies spotted Kanye West and Pharrell at LAX airport this morning ... on a Southwest flight to Tucson, Ariz.. Ding -- you are now free to lose your street cred!

Was first class booked on EVERY OTHER AIRLINE?!?!? Or, for that matter, a sweet private jet? Is that really the best Kanye's travel site could do?

Let's hope they were at least in Group A.