When they were searching the guys apartment (who died from the butterfly attack and 20 story face plant he did out the window. She found an airplane ticket from New York to Omaha, Nebraska on....you guessed it...... OCEANIC AIRLINES.
I wouldn't be suprised if Abrams puts more references to Lost or Alias in Fringe. Fringe's first season is very much like Lost's first season as it appears to be setting up the viewers for the big story arc coming up. Excellent show.