Not complete, but covers most of routes, IMHO.
If you find an error, please report.

ACA GDL
ACA MEX

BJX MTY

CPE MEX

CUN BOG
CUN GUA
CUN HAV
CUN IAD
CUN JFK
CUN LAX
CUN MIA
CUN MTY
CUN ORD
CUN PBC
CUN SJO

CUU GDL

GDL FAT
GDL JFK
GDL LAP
GDL LAS
GDL LAX
GDL LMM
GDL MTY
GDL MXL
GDL MZT
GDL OAK
GDL OAX
GDL ORD
GDL PBC
GDL PVR
GDL SJC
GDL SMF
GDL TIJ
GDL VER

LAP TIJ
LAP LMM

LMM TIJ

MEX BOG
MEX CCS
MEX DEN
MEX DFW
MEX EZE
MEX GRU
MEX GUA
MEX HAV
MEX IAD
MEX JFK
MEX LAS
MEX LGW
MEX MAD
MEX MCO
MEX MIA
MEX MID
MEX MXL
MEX OAX
MEX ORD
MEX PTY
MEX PXM
MEX PVR
MEX SAL
MEX SAT
MEX SJO
MEX TJI
MEX TRC
MEX VER
MEX YUL
MEX YVR
MEX YYC
MEX YYZ
MEX ZCL
MEX ZIH
MEX ZLO

MID OAX
MID TGZ
MID VER

MLM LAX
MLM ORD
MLM SJC

MTY JFK
MTY ORD
MTY PBC
MTY VER

MZT SJD

OAX TGZ

PVR LAX
PVR ORD

SJD LAX
SJD SMF

TJI ZCL

VER VSA

ZCL ORD