Here is a nice Flightplan for a real-world flight from Baltimore to Midway. Hope you enjoy.
FPL: KBWI WONCE TERPZ FOXHL RAMAY BENSH GEQUE HACKS SUMET VLADY EMPTY MECAN ROD FWA BAGEL PANGG MEGGZ AWSUM IROCK HALIE OLCYK TINLY CTLER KMDW
Altitude: 40000
Speed: 520mph
Time: 1:50
Plane: 737-700