This includes all 54 passenger routes for the ten carriers that fly out of Eppley Airfield, KOMA, in Omaha, Nebraska. A cargo version can be found here.
The American Eagle LaGuardia route begins in November this year, as does the Southwest LAX route. Some of the routes are seasonal, which I've noted below.
The passenger carriers are: Alaska, Allegiant, American, American Eagle, Delta, Delta Connection, Frontier, Southwest, United and United Express.
To assist with your livery selection, I've included an abbreviation of the carrier in each filename.
To load your selected route, click "load/save" at the bottom of the World Map and navigate to the relevant folder. A ramp has been set.
The airlines and routes:
Alaska:
Seattle/Tacoma
Allegiant:
Las Vegas
Orlando/Sanford
Phoenix/Mesa
St Petersburg/Clearwater
Destin/Fort Walton Beach (seasonal)
Los Angeles (seasonal)
Punta Gorda (seasonal)
American:
Chicago O'Hare
Dallas-Fort Worth
Los Angeles
Phoenix-Sky Harbor
Charlotte (seasonal)
American Eagle:
Charlotte
Chicago O'Hare
Dallas-Forth Worth
Los Angeles
New York-LaGuardia
Philadelphia
Miami (seasonal)
Delta:
Atlanta
Minneapolis/St Paul (seasonal)
Delta Connection:
Detroit
Los Angeles
Minneapolis/St Paul
New York-LaGuardia
Salt Lake City
Washington-National
Frontier:
Denver
Las Vegas
Fort Myers (seasonal)
Orlando (seasonal)
Southwest:
Atlanta
Chicago-Midway
Dallas-Love
Denver
Houston-Hobby
Las Vegas
Los Angeles
Nashville
Phoenix-Sky Harbor
St Louis
Tampa
Washington-National
Orlando (seasonal)
United:
Chicago O'Hare
Denver
Houston Intercontinental (seasonal)
San Francisco (seasonal)
United Express:
Chicago O'Hare
Denver
Houston Intercontinental
Newark
San Francisco
newtestleper 
What KOMA is that in the photo? That isn't stock is it?
3 years ago
They’re both real. I’ll upload a couple from the sim today.
3 years ago
newtestleper
gryper