A map from the Great Circle Mapper

Code	Source	Location
ABR	FAA	Aberdeen [Aberdeen Regional], SD, US
ABY	FAA	Albany [Southwest Georgia Regional], GA, US
ACT	FAA	Waco [Waco Regional], TX, US
ADK	FAA	Adak Island [Adak Airport], AK, US
AIA	FAA	Alliance [Muni], NE, US
AKN	FAA	King Salmon, AK, US
ALO	FAA	Waterloo [Waterloo Regional], IA, US
ALS	FAA	Alamosa [San Luis Valley Regional/Bergman Field], CO, US
ANI	FAA	Aniak, AK, US
AOO	FAA	Altoona [Altoona/Blair County Airport], PA, US
APN	FAA	Alpena [Alpena County Regional], MI, US
ART	FAA	Watertown [Intl], NY, US
ATY	FAA	Watertown [Watertown Regional], SD, US
AUG	FAA	Augusta [Augusta State Airport], ME, US
AZO	FAA	Kalamazoo [Kalamazoo/Battle Creek Intl], MI, US
BFD	FAA	Bradford [Bradford Regional], PA, US
BFF	FAA	Scottsbluff [Western Nebraska Regional/William B Heilig Field/Scottsbluff], NE, US
BHB	FAA	Bar Harbor [Hancock County/Bar Harbor Airport], ME, US
BJI	FAA	Bemidji [Bemidji Regional], MN, US
BKW	FAA	Beckley [Raleigh County Memorial Airport], WV, US
BRD	FAA	Brainerd [Brainerd Lakes Regional], MN, US
BRL	FAA	Burlington [Southeast Iowa Regional], IA, US
BTM	FAA	Butte [Bert Mooney Airport], MT, US
CDB	FAA	Cold Bay, AK, US
CDC	FAA	Cedar City [Cedar City Regional], UT, US
CDR	FAA	Chadron [Muni], NE, US
CDV	FAA	Cordova [Merle K (Mudhole) Smith Airport], AK, US
CEC	FAA	Crescent City [Jack McNamara Field], CA, US
CEZ	FAA	Cortez [Muni], CO, US
CGI	FAA	Cape Girardeau [Cape Girardeau Regional], MO, US
CIU	FAA	Sault Ste. Marie [Chippewa County Intl], MI, US
CKB	FAA	Clarksburg [North Central West Virginia Airport], WV, US
CLL	FAA	College Station [Easterwood Field], TX, US
CLM	FAA	Port Angeles [William R Fairchild Intl], WA, US
CNM	FAA	Carlsbad [Cavern City Air Terminal Airport], NM, US
CNY	FAA	Moab [Canyonlands Regional], UT, US
COD	FAA	Cody [Yellowstone Regional], WY, US
CSG	FAA	Columbus, GA, US
CVN	FAA	Clovis [Clovis Regional], NM, US
CWA	FAA	Mosinee [Central Wisconsin Airport], WI, US
CYF	FAA	Chefornak, AK, US
CYS	FAA	Cheyenne [Cheyenne Regional/Jerry Olson Field], WY, US
DBQ	FAA	Dubuque [Dubuque Regional], IA, US
DDC	FAA	Dodge City [Dodge City Regional], KS, US
DEC	FAA	Decatur, IL, US
DHN	FAA	Dothan [Dothan Regional], AL, US
DIK	FAA	Dickinson [Dickinson/Theodore Roosevelt Regional], ND, US
DLG	FAA	Dillingham, AK, US
DRT	FAA	Del Rio [Intl], TX, US
DUJ	FAA	Dubois [Dubois Regional], PA, US
DVL	FAA	Devils Lake [Devils Lake Regional], ND, US
EAR	FAA	Kearney [Kearney Regional], NE, US
EKO	FAA	Elko [Elko Regional], NV, US
ELY	FAA	Ely [Ely/Yelland Field], NV, US
ENA	FAA	Kenai [Muni], AK, US
ESC	FAA	Escanaba [Delta County Airport], MI, US
FKL	FAA	Franklin [Venango Regional], PA, US
FLG	FAA	Flagstaff [Flagstaff Pulliam Airport], AZ, US
FLO	FAA	Florence [Florence Regional], SC, US
FMN	FAA	Farmington [Four Corners Regional], NM, US
FNL	FAA	Fort Collins/Loveland [Northern Colorado Regional], CO, US
FOD	FAA	Fort Dodge [Fort Dodge Regional], IA, US
FOE	FAA	Topeka [Topeka Regional], KS, US
FSM	FAA	Fort Smith [Fort Smith Regional (Ebbing Field Angb)], AR, US
GAL	FAA	Galena [Edward G Pitka Sr. Airport], AK, US
GAM	FAA	Gambell, St. Lawrence Island, AK, US
GBD	FAA	Great Bend [Muni], KS, US
GCC	FAA	Gillette [Northeast Wyoming Regional], WY, US
GCK	FAA	Garden City [Garden City Regional], KS, US
GDV	FAA	Glendive [Dawson Community Airport], MT, US
GGG	FAA	Longview [East Texas Regional], TX, US
GGW	FAA	Glasgow [Wokal Field/Glasgow-Valley County Airport], MT, US
GLH	FAA	Greenville [Greenville Mid-Delta Airport], MS, US
GST	FAA	Gustavus, AK, US
GTR	FAA	Columbus (Columbus/West Point/Starkville) [Golden Triangle Regional], MS, US
HHH	FAA	Hilton Head Island [Hilton Head Airport], SC, US
HIB	FAA	Hibbing [Range Regional], MN, US
HOM	FAA	Homer, AK, US
HON	FAA	Huron [Huron Regional], SD, US
HVN	FAA	New Haven [Tweed/New Haven Airport], CT, US
HVR	FAA	Havre [Havre City-County Airport], MT, US
HYA	FAA	Hyannis [Cape Cod Gateway Airport], MA, US
HYS	FAA	Hays [Hays Regional], KS, US
IGM	FAA	Kingman, AZ, US
IMT	FAA	Iron Mountain/Kingsford [Ford Airport], MI, US
INL	FAA	International Falls [Falls Intl/Einarson Field], MN, US
IPL	FAA	Imperial [Imperial County Airport], CA, US
IPT	FAA	Williamsport [Williamsport Regional], PA, US
IRK	FAA	Kirksville [Kirksville Regional], MO, US
IWD	FAA	Ironwood [Gogebic/Iron County Airport], MI, US
IYK	FAA	Inyokern, CA, US
JBR	FAA	Jonesboro [Muni], AR, US
JHM	FAA	Lahaina [Kapalua Airport], Maui, HI, US
JHW	FAA	Jamestown [Chautauqua County/Jamestown Airport], NY, US
JLN	FAA	Joplin [Joplin Regional], MO, US
JMS	FAA	Jamestown [Jamestown Regional], ND, US
JQF	FAA	Concord [Concord-Padgett Regional], NC, US
JST	FAA	Johnstown [John Murtha Johnstown/Cambria County Airport], PA, US
LAM	FAA	Los Alamos, NM, US
LAR	FAA	Laramie [Laramie Regional], WY, US
LAW	FAA	Lawton [Lawton-Fort Sill Regional], OK, US
LBF	FAA	North Platte [North Platte Regional/Lee Bird Field], NE, US
LBL	FAA	Liberal [Liberal Mid-America Regional], KS, US
LCH	FAA	Lake Charles [Lake Charles Regional], LA, US
LEB	FAA	Lebanon [Muni], NH, US
LMT	FAA	Klamath Falls [Crater Lake/Klamath Regional], OR, US
LNS	FAA	Lancaster, PA, US
LNY	FAA	Lanai City [Lanai Airport], Lanai, HI, US
LSE	FAA	La Crosse [La Crosse Regional], WI, US
LWB	FAA	Lewisburg [Greenbrier Valley Airport], WV, US
LWT	FAA	Lewistown [Muni], MT, US
LYH	FAA	Lynchburg [Lynchburg Regional/Preston Glenn Field], VA, US
MAZ	FAA	Mayagüez [Eugenio Maria De Hostos Airport], PR, US
MCE	FAA	Merced [Merced Yosemite Regional], CA, US
MCK	FAA	McCook [McCook Ben Nelson Regional], NE, US
MCN	FAA	Macon [Middle Georgia Regional], GA, US
MCW	FAA	Mason City [Muni], IA, US
MEI	FAA	Meridian [Key Field], MS, US
MGW	FAA	Morgantown [Muni/Walter L Bill Hart Field], WV, US
MKG	FAA	Muskegon [Muskegon County Airport], MI, US
MKK	FAA	Kaunakakai [Molokai Airport], Molokai, HI, US
MLS	FAA	Miles City [Frank Wiley Field], MT, US
MOD	FAA	Modesto [Modesto City-County-Harry Sham Field], CA, US
MQT	FAA	Marquette [Marquette/Sawyer Regional], MI, US
MSL	FAA	Muscle Shoals [Northwest Alabama Regional], AL, US
MSS	FAA	Massena [Intl-Richards Field], NY, US
MWA	FAA	Marion [Veterans Airport of Southern Illinois], IL, US
OGS	FAA	Ogdensburg [Intl], NY, US
OLF	FAA	Wolf Point [L M Clayton Airport], MT, US
ORH	FAA	Worcester [Worcester Regional], MA, US
PGA	FAA	Page [Muni], AZ, US
PGV	FAA	Greenville [Pitt-Greenville Airport], NC, US
PIB	FAA	Hattiesburg/Laurel [Hattiesburg/Laurel Regional], MS, US
PIH	FAA	Pocatello [Pocatello Regional], ID, US
PIR	FAA	Pierre [Pierre Regional], SD, US
PKB	FAA	Parkersburg [Mid-Ohio Valley Regional], WV, US
PLN	FAA	Pellston [Pellston Regional/Emmet County], MI, US
PQI	FAA	Presque Isle [Intl], ME, US
PRC	FAA	Prescott [Prescott Regional - Ernest A Love Field], AZ, US
PSG	FAA	Petersburg [Petersburg James A Johnson Airport], AK, US
PSM	FAA	Portsmouth [Pease Intl], NH, US
PUB	FAA	Pueblo [Pueblo Memorial Airport], CO, US
PVC	FAA	Provincetown [Muni], MA, US
RHI	FAA	Rhinelander [Rhinelander/Oneida County Airport], WI, US
RIW	FAA	Riverton [Central Wyoming Regional], WY, US
RKD	FAA	Rockland [Knox County Regional], ME, US
RKS	FAA	Rock Springs [Southwest Wyoming Regional], WY, US
ROP	FAA	Rota Island [Benjamin Taisacan Manglona Intl], MP, US
RSH	FAA	Russian Mission, AK, US
RUT	FAA	Rutland [Rutland/Southern Vermont Regional], VT, US
SBY	FAA	Salisbury [Salisbury-Ocean City Wicomico Regional], MD, US
SDP	FAA	Sand Point, AK, US
SDY	FAA	Sidney [Sidney-Richland Regional], MT, US
SHG	FAA	Shungnak, AK, US
SHR	FAA	Sheridan [Sheridan County Airport], WY, US
SLK	FAA	Saranac Lake [Adirondack Regional], NY, US
SNP	FAA	St. Paul Island [St. Paul Island Airport], AK, US
SOW	FAA	Show Low [Show Low Regional], AZ, US
SPB	FAA	Charlotte Amalie [Charlotte Amalie Harbor SPB], St. Thomas, VI, US
SPN	FAA	Saipan (Obyan) [Saipan Intl (Francisco C. Ada)], MP, US
SPS	FAA	Wichita Falls [Sheppard AFB/Wichita Falls Muni], TX, US
SSB	FAA	Christiansted [Christiansted Harbor-SSB SPB], St. Croix, VI, US
SVC	FAA	Silver City [Grant County Airport], NM, US
TBN	FAA	Fort Leonard Wood [Waynesville-St. Robert Regional Forney Field], MO, US
TEX	FAA	Telluride [Telluride Regional], CO, US
TLA	FAA	Teller, AK, US
TUP	FAA	Tupelo [Tupelo Regional], MS, US
TVF	FAA	Thief River Falls [Thief River Falls Regional], MN, US
TWF	FAA	Twin Falls [Joslin Field/Magic Valley Regional], ID, US
TXK	FAA	Texarkana [Texarkana Regional-Webb Field], AR, US
TYR	FAA	Tyler [Tyler Pounds Regional], TX, US
UIN	FAA	Quincy [Quincy Regional-Baldwin Field], IL, US
UNK	FAA	Unalakleet, AK, US
VAK	FAA	Chevak, AK, US
VCT	FAA	Victoria [Victoria Regional], TX, US
VDZ	FAA	Valdez [Valdez Pioneer Field], AK, US
VEL	FAA	Vernal [Vernal Regional], UT, US
VIS	FAA	Visalia [Muni], CA, US
VLD	FAA	Valdosta [Valdosta Regional], GA, US
VQS	FAA	Isla De Vieques [Antonio Rivera Rodriguez Airport], PR, US
WRG	FAA	Wrangell, AK, US
WRL	FAA	Worland [Muni], WY, US
WYS	FAA	West Yellowstone [Yellowstone Airport], MT, US
YAK	FAA	Yakutat, AK, US