Originally Posted by themicah
If you mean you want a list of city codes that encompass multiple airports, these work in most reservation systems:
NYC (LGA/JFK + usually EWR)
WAS (DCA/IAD + usually BWI)
CHI (ORD/MDW)
DTT (DET/DTW)
LON (LGW/LHR/LCY + maybe LUT/STN/MSE?)
PAR (CDG/ORY)
MOW (SVO/DME)
TYO (HND/NRT)
These work in a smaller number of reservation systems:
QHO (HOU/IAH/EFD)
QDF (DFW/DAL)
QLA (LAX/ONT/BUR + maybe LGB/SNA?)
QSF (SJC/SFO/OAK)
Also, some airport-specific codes will sometimes bring up neighboring airports, too. For example:
HOU (HOU/IAH)
BJS (BJS/PEK)
SHA (SHA/PVG)
Some threads to read:
http://flyertalk.com/forum/showthread.php?t=324976
http://flyertalk.com/forum/showthread.php?t=462127
I figured out NYC, WAS, and CHI. I'm surpised Denver (DEN/COS) doesn't have one, as well as MIA/FLL/PBI, as well as LAX/SNA. You'd think co-terminals would have co-city names.
BTW, QHO is in IL, QDF is in Brazil, QLA is in England, and QSF is unrecognizable (at least at nwa.com).
http://flyertalk.com/forum/showthread.php?t=324976 post #4 gave me something to work out in my searching scripts... milage circumference. FLL for 50 miles should give me PBI/MIA. Thanks!
[EDIT] BTW, nwa.com reports QLA as being in England, then returns LAX results. QDF/QHO return nothing, and QSF aren't recognizable.
Steve B.