Not much to update after a relatively quiet couple years, but why not? New airports in bold.

Domestic
Arizona: PHX
California: LAX, SAN, SJC, SFO, SNA, OAK
Colorado: DEN
Florida: FLL, JAX, MIA, MCO, TPA, RSW, PBI
Georgia: ATL, SAV
Hawaii: HNL, KON, LIH, OGG
Illinois: ORD, MDW
Indiana: IND, FWA, SBN
Kentucky: CVG
Louisiana: MSY, LFT
Maine: PWM
Maryland: BWI
Massachusetts: BOS
Michigan: DTW
Minnesota: MSP
Missouri: COU, MCI, STL
Montana: BIL, BZN
Nevada: LAS, RNO
New Jersey: EWR
New York: JFK, LGA
North Carolina: CLT, RDU
Ohio: CLE, CMH, DAY
Oregon: PDX
Pennsylvania: PHL, PIT
Rhode Island: PVD
South Dakota: FSD (and GMT?, can't remember)
South Carolina: HHH
Tennessee: MEM, BNA
Texas: AUS, DFW, IAH, SAT
Utah: SLC
Vermont: BTV
Virginia: IAD, ORF, RIC, CHO
Washington: SEA, YKM
Washington, DC: DCA
Wisconsin: MSN

International
Americas -USA: COR, CUN, GRU, MEX, MZT, PTY, SJD, SJO (+ some tiny airport near the resort), YYZ, YVR, PVR, GUA, FRS, LIM, SCL, COR, EZE, IGU, GIG
Caribbean: NAS, SJU, STI (Dominican Republic), AUA (Aruba), PLS (Turks and Caicos), STX (St. Croix), SFG (St. Martin), GCM (Cayman Islands)
Europe: AMS, ARN, CDG, CPH, GVA, VIE, ZRH, KEF, DUB, OPO, LIS, BCN, LHR, ORY, FRA, FKB, BSL, MUC, VCE, MXP, GOA, FCO, TGD, BEG
Australia/NZ: AKL, ASP, AYQ, BNE, CNS, SYD, ZQN
Asia/Middle East: BKK, HKG, HKT, NRT, TLV, MNL, DXB, TPE, SIN, ICN, PEK, KIX, HND, AUH, AMM