@ Jayceon - yeah, 380ish AC doing about 2350 routes here - how have a lot of profit though! How old is your game? Have you been replacing AC at all?
For aircraft, I used the BAe Jetstream J61, and then I started using the Tupolev Tu 334 D - it's great - 102 seats, 440 speed, 1200 range, 27 million. I've recently switched over to this other Tupolev with 126 and about 34 million cost, because somehow it takes 48 days to make an aircraft with 102 seats and only 24 days to make one with 126 seats... whaaa? Also I'll post the main route map later - it's cool, so many long range routes... yay.
Update - I now make 30,000 on a CDG - Antarctica 20+ hour route. Yay