What regionals operate out of IAD for UAX:
- Mesa
- Commutair
- Expressjet
- Silver
- Trans States
--------------------------------Offsite
- Gojet
- Republic Q400 (RAH)
- Shuttle America E175 (RAH)

That's 8 so which ones are getting axed at IAD by Sept.? United stated only 4 to remain and will be largeRJ(700,175) operators.