Every Airport Code United Airlines and United Express Serves

I spent some time with the United Airlines timetable and pulled a list of all the airport codes for United and United Express (current as of March 30, 2013).  These are especially useful for finding mileage runs with ITA Matrix.  My goal is to make 1 million United miles soon, so I am spending a little more to fly United rather than US Airways (upgrades help too).  

United Airlines 737 and 777

ABE, ABI, ABQ, ABR, ABX, ABY, ACA, ACK, ACT, ACV, AEX, AGS, AGU, ALB, AMA, AMS, ANC, ANU, AOO, APN, ARN, ASE, ATL, ATW, AUA, AUS, AVL, AVP, AZO, BAH, BCN, BDA, BDL, BFL, BFS, BGM, BGR, BHM, BHX, BIL, BIS, BJI, BJX, BKK, BKW, BMI, BNA, BNE, BOG, BOI, BOM, BON, BOS, BPT, BQK, BQN, BRD, BRO, BRU, BTM, BTR, BTV, BUF, BUR, BWI, BZE, BZN, CAE, CAK, CBR, CCS, CDC, CDG, CHA, CHO, CHS, CIC, CID, CKB, CLD, CLE, CLL, CLT, CME, CMH, CMX, CNS, COD, COS, CPR, CRP, CRW, CSG, CTS, CUN, CUU, CVG, CWA, CZM, DAB, DAL, DAY, DCA, DEL, DEN, DFW, DGO, DHN, DLH, DNA, DOH, DRO, DRT, DSM, DTW, DUB, DUJ, DXB, EAU, EDI, EGE, EKO, ELH, ELM, ELP, EMD, ERI, EUG, EVV, EWN, EWR, EYW, EZE, FAI, FAR, FAT, FAY, FCA, FCO, FKL, FLL, FNT, FPO, FRA, FSD, FSM, FUK, FWA, GDL, GDV, GEG, GFK, GGT, GGW, GHB, GIG, GLA, GLH, GLT, GNV, GPT, GRB, GRK, GRR, GRU, GSO, GSP, GTF, GTR, GUA, GUC, GUM, GVA, HAM, HDN, HIB, HIJ, HKG, HLN, HNL, HOB, HOU, HPN, HRL, HSV, HUX, HVR, IAD, ICT, IDA, IMT, IND, INL, IPL, IST, ITH, ITO, IYK, JAC, JAN, JAX, JFK, KIJ, KIX, KOA, KWA, KWI, LAN, LAS, LAW, LAX, LBB, LCH, LEX, LFT, LGA, LHR, LIH, LIM, LIR, LIS, LIT, LMT, LNK, LOS, LRD, LSE, LWS, LWT, MAD, MAF, MAJ, MAN, MBJ, MBS, MCI, MCO, MDT, MEI, MEL, MEM, MEX, MFE, MFR, MGA, MGM, MHT, MIA, MID, MKC, MKE, MKG, MLB, MLI, MLM, MLS, MLU, MNL, MOB, MOD, MOT, MRY, MSL, MSN, MSO, MSP, MSY, MTJ, MTY, MUC, MXP, MYR, NAS, NBW, NGO, NRT, OAK, OAX, OGG, OKC, OKJ, OLF, OMA, ONT, ORD, ORF, OSL, OTH, PAH, PAP, PBC, PBI, PDX, PHL, PHX, PIA, PIB, PIH, PIT, PKB, PLN, PNS, PQQ, PSC, PSP, PTY, PVD, PVR, PWM, QRO, RAP, RDD, RDM, RDU, RHI, RIC, RNO, ROA, ROC, ROK, ROR, RST, RSW, RTB, SAL, SAN, SAP, SAT, SAV, SBA, SBN, SBP, SCE, SDF, SDJ, SDY, SEA, SFO, SGF, SGU, SHV, SIN, SJC, SJD, SJO, SJT, SJU, SLC, SLP, SLW, SMF, SMX, SNA, SNN, SPI, SRQ, STL, STR, SWO, SYD, SYR, TAM, TCB, TCL, TGU, TLH, TLV, TPA, TPE, TRC, TRI, TUL, TUP, TUS, TVC, TXK, TXL, TYR, TYS, UIO, UOX, VER, VLD, VPS, VSA, XNA, YAP, YEG, YHZ, YLW, YMM, YOW, YQB, YQM, YQR, YQT, YUL, YUM, YVR, YWG, YXE, YXU, YYC, YYJ, YYT, YYZ, ZIH, ZLO, ZRH