ORD ORE PHL RDU YYZ YUL
FROMLAXTO:ABQ CRP DFW ELP IAH LAS LRD ORD PHX SAN SEA
SFO SLC TUS GDL MFX
FROMSFOTO:LAX PDX SEA SLC YUR
FROMIADTO:ATL BNA BOS BWI CLE CLT CMH DTW IND JFK MEM
MIA ORD ORE PHL RDU YYZ YUL
FROMJFKTO:ATL BOS CLE IAD ORD ORF PHL PIT RDU YUL YYZ
FROMHALTO:PDX SEA SFO