ABE - Allentown, PA
ABQ - Albuquerque, NM
ALB - Albany, NY
ATW - Appleton/Green Bay, WI
AUS - Austin, TX
AVL - Asheville, NC
BGR - Bangor, ME
BIL - Billings, MT
BIS - Bismark, ND
BLI - Bellingham, WA
BLV - Belleville, IL
BMI - Bloomington, IL
BNA - Nashville, TN
BOI - Boise, ID
BOS - Boston, East Boston, MA
BWI - Baltimore, MD
BZN - Bozeman, MT
CAK - Akron, OH
CHA - Chattanooga, TN
CHS - Charleston, SC
CID - Cedar Rapids, IA
CKB - Clarksburg, WV
CLE - Cleveland, OH
COS - Colorado Springs, CO
CVG - Cincinatti, OH
DAY - Dayton, OH
DEN - Denver, CO
DSM - Des Moines, IA
ELM - Elmira/Corning, NY
ELP - El Paso, TX
EUG - Eugene, OR
EVV - Evansville, IN
EWR - Newark, NJ
FAR - Fargo, ND
FAT - Fresno, CA
FLL - Fort Lauderdale, FL
FNT - Flint, MI
FSD - Sioux Falls, SD
FWA - Fort Wayne, IN
GFK - Grand Forks, ND
GJT - Grand Junction, CO
GPI - Kalispell, MT
GPT - Gulfport, MS
GRI - Grand Island, NE
GRR - Grand Rapids MI
GSO - Greensboro, NC
GSP - Greenville, SC
GTF - Great Falls, MT
HGR - Hagerstown, MD
HTS - Huntington, WV
IAD - Dulles, VA
IAG - Niagara/Buffalo, NY
ICT - Wichita, KS
IDA - Idaho Falls, ID
IND - Indianapolis, IN
IWA - Phoenix/Mesa, AZ
JAX - Jacksonville, FL
LAS - Las Vegas, NV
LAX - Los Angeles, CA
LCK - Columbus, OH
LEX - Lexington, KY
LIT - Little Rock, AR
LRD - Laredo, TX
MCI - Kansas City, MO
MDT - Harrisburg, PA
MDW - Chicago, IL
MEM - Memphis, TN
MFE - McAllen, TX
MFR - Medford, OR
MKE - Milwaukee, WI
MLI - Moline/Quad Cities, IL
MOT - Minot, ND
MRY - Monterey, CA
MSO - Missoula, MT
MSY - New Orleans, LA
MTJ - Montrose, CO
MYR - Myrtle Beach, SC
OAK - Oakland, CA
OGD - Ogden, UT
OGS - Ogdensburg, NY
OKC - Oklahoma City, OK
OMA - Omaha, NE
ORF - Norfolk, VA
OWB - Owensboro, KY
PBG - Plattsburg, NY
PDX - Portland, OR
PGD - Punta Gorda, FL
PIA - Peoria, IL
PIE - St. Petersburg/Tampa Bay, FL
PIT - Pittsburgh, PA
PSC - Pasco, WA
PSM - Portsmouth, NH
PSP - Palm Springs, CA
PVD - Providence, RI
PVU - Provo, UT
RAP - Rapid City, SD
RDU - Raleigh, NC
RFD - Rockford/Chicago, IL
RIC - Richmond, VA
RNO - Reno, NV
ROA - Roanoke, VA
ROC - Rochester, NY
SAN - San Diego, CA
SAT - San Antonio, TX
SAV - Savannah, GA
SBN - South Bend, IN
SCK- Stockton, CA
SDF - Louisville, KY
SFB - Orlando/Sanford, FL
SGF - Springfield/Branson, MO
SHV - Shreveport, LA
SJU - San Juan, PR
SMX - Santa Maria, CA
SNA - Orange County, CA
SPI - Springfield, IL
SRQ - Sarasota, FL
STC - St. Cloud, MN
SWF - Stewart/Newburg NY
SYR - Syracuse, NY
TOL - Toledo, OH
TRI - Tri-Cities, TN
TTN - Trenton-Mercer Airport
TUL - Tulsa, OK
TVC - Traverse City, MI
TYS - Knoxville, TN
USA - Concord, NC
VPS - Destin/Ft. Walton Beach, FL
XNA - Northwest Arkansas, AR