JFK MCO
ORD DEN
ORD HOU    
ATL MCO
ORD HOU
DFW PHX    
JFK ATL
ORD DFW
ORD PHX    
ATL HOU
DEN PHX
PHX LAX    
JFK ORD
DEN LAS
DFW HOU    
ORD ATL
LAS LAX