I sent my app in in beginning of February, got the email interview offer about 4 weeks later. I had two internal Captain LOR's, and one emailed hiring dept. also, which is what I think allowed me to get the interview so fast. I think LOR's are a must, and if you can get them to go to bat for you with emails that will also be very helpful. I interview in 2 days. So about 7 weeks total for me app to interview. Very lucky I think. 7000TT with 1250 part 121 PIC.