List updated with new airports and alphabetized correctly (US only)
1. ABI- Abilene, TX
2. ABQ- Albuquerque, NM
3. ACY- Atlantic City, NJ
4. ADQ- Kodiak, AK
5. ALB- Albany, NY
6. ANC- Anchorage, AK
7. ATL- Atlanta, GA
8. AUS- Austin, TX
9. BNA- Nashville, TN
10. BOI- Boise, ID
11. BOS- Boston, MA
12. BRO- Brownsville, TX
13. BWI- Baltimore, MD
14. BTV- Burlington, VT
15. BUR- Burbank, CA
16. CIC- Chico, CA
17. CLT- Charlotte, NC
18. CRP- Corpus Christi, TX
19. CVG- Cincinnati/ Northern Kentucky, KY
20. DAL- Dallas Love Field, TX
21. DAY- Dayton, OH
22. DEN- Denver, CO
23. DFW- Dallas-Fort Worth, TX
24. DTW- Detroit, MI
25. ELP- El Paso, TX
26. EUG- Eugene, OR
27. EWR- Newark, NJ
28. JAN- Jackson, MS
29. HNL- Honolulu, HI
30. HOU- Houston Hobby, TX
31. HPN- White Plains/Westchester County, NY
32. HRL- Harlingen,TX
33. IAD- Washington Dulles, MD
34. IAH- Houston Intercontinental, TX
35. ISP- Islip, Long Island, NY
36. JFK- Kennedy, New York, NY
37. LAS- Las Vegas, NV
38. LAX- Los Angeles, CA
39. LGA- La Guardia, New York, NY
40. LGB- Long Beach, CA
41. LIH- Lihue, HI
42. MCI- Kansas City, MO
43. MCO- Orlando, FL
44. MDW- Chicago Midway, IL
45. MEM- Memphis, TN
46. MFE- McAllen, TX
47. MIA- Miami, FL
48. MLU- Monroe, LA
49. MSP- Minneapolis-St. Paul, MN
50. MSY- New Orleans, LA
51. OGG- Maui, HI
52. OKC- Oklahoma City, OK
53. ONT- Ontario, CA
54. ORD- Chicago O'hare, IL
55. PDX- Portland, OR
56. PHL- Philadelphia, PA
57. PHX- Phoenix, AZ
58. PIB- Laurel, MS
59. SAN- San Diego, CA
60. SAT- San Antonio, TX
61. SEA- Seattle/Tacoma, WA
62. SFO- San Francisco, CA
63. SLC- Salt Lake City, UT
64. SMF- Sacramento, CA
65. SNA- Orange County, CA
66. STL- St. Louis, MO
67. YHZ- Halifax, NS
68. YUL- Montreal, QC
69. YYZ- Toronto, ON
70. LHR- London Heathrow, UK
71. AMS- Amsterdam, Netherlands
72. CDG- Paris, France
73. TAM- Tampico, Mexico
74. TLV- Tel Aviv, Israel
75. BNE- Brisbane, Australia
76. MEX- Mexico City, Mexico
77. SYD- Sydney, Australia
78. AKL- Auckland, NZ
79. SVO- Moscow, Russia
80. DME- Moscow, Russia
81. CEK- Chelyabinsk, Russia
82. SCW- Syktyvkar, Russia
83. UIO- Quito, Ecuador