SABAR, LA — ML

SABINE PASS, TX — SBI

SACRAMENTO, CA — SAC

SACRAMENTO EXECUTIVE, CA — SAC

SACRAMENTO INTL, CA — SMF

SAGINAW, MI — MBS

SAGUENAY, CANADA — YUC

SAINT JOHN, CANADA — YSJ

SAINT MAARTEN, NETHERLANDS ANTILLES — PJM

SAIPAN, MP — SN

SALEM, MI — SVM

SALINA, KS — SLN

SALINAS, CA — SNS

SALISBURY, MD — SBY

SALMON, ID — LKT

SALT FLAT, TX — SFL

SALT LAKE CITY, UT — SLC

SALTT, KS — HU

SALYER FARMS, CA — COR

SAMSVILLE, IL — SAM

SAN ANGELO, TX — SJT

SAN ANTONIO, TX — SAT

SAN ANTONIO, TX — SAT

SAN CLEMENTE, CA — NUC

SAN FRANCISCO, CA — SFO

SAN FRANCISCO, CA — SFO

SAN JOSE, CA — SJC

SAN JUAN, PR — SJU

SAN MARCUS, CA — RZS

SAN NICOLAS, CA — NSI

SAN PEDRO HILL, CA — LAX

SAN SALVADOR, BAHAMAS — ZSJ

SAN SIMON, AZ — SSO

SANDHILLS, NC — SDZ

SANDPOE, ID — SZT

SANDSPIT, CANADA — YZP

SANDY POINT, RI — SEY

SANTA ANA, CA — SNA

SANTA CATALINA, CA — SXC

SANTA FE, NM — SAF

SANTA MONICA, CA — SMO

SANTA ROSA, CA — STS

SANTA ROSA, FL — NGS

SARANAC LAKE, NY — SLK

SARASOTA, FL — SRQ

SARDY, CO — RDY

SAUFLEY, FL — NUN

SAULT STE MARIE, MI — SSM

SAUSALITO, CA — SAU

SAVANNAH, GA — SAV

SAWMILL, LA — SWB

SAWYER, MI — SAW

SCAGGS ISLAND, CA — SGD

SCHOLES, TX — VUH

SCHOOLCRAFT COUNTY, MI — ISQ

SCOTT, IL — SKE

SCOTT, MN — SCG

SCOTTSBLUFF, NE — BFF

SCREAMING EAGLE, KY — HXW

SCRIBNER, NE — SCB

SEA ISLE, NJ — SIE

SEAL BEACH, CA — SLI

SEARLE, NE — SAE

SEATTLE, WA — BFI

SEATTLE, WA — SEA

SEATTLE-TACOMA, WA — SEA

SECO, KY — XYC

SEDLY, IN — VP

SELAWIK, AK — WLK

SELFRIDGE, MI — MTC

SELINSGROVE, PA — SEG

SEMINOLE, FL — SZW

SEMMES, AL — SJI

SEPT-ILES, CANADA — YZV

SEYER, MS — UU

SEYMOUR JOHNSON, NC — GSB

SHAFTER, CA — EHF

SHANNON, VA — EZF

SHAW, SC — SSC

SHELBYVILLE, IL — SYZ

SHELBYVILLE, IN — SHB

SHELBYVILLE, TN — SYI

SHEMYA, AK — SYA

SHEMYA, AK — SYA

SHENK, IN — GW

SHEPPARD, TX — SHP

SHERIDAN, WY — SHR

SHISHMAREF, AK — SHH

SHREVEPORT, LA — SHV

SHUGR, KS — GL

SIDNEY, NE — SNY

SIDON, MS — SQS

SILOAM SPRINGS, AR — SLG

SILVER CITY, NM — SVC

SILVERBOW, NV — TQQ

SIOUX CITY, IA — SUX

SIOUX FALLS, SD — FSD

SIOUX LOOKOUT, CANADA — YXL

SIOUX NARROWS, CANADA — VBI

SIREN, WI — RZN

SISTERS ISLAND, AK — SSR

SITKA, AK — SIT

SKAGIT/BAY VIEW, WA — BVS

SLAMMER, NC — SIF

SLATE RUN, PA — SLT

SMITH LAKE, MT — SAK

SMUTO, VT — DYO

SMYRNA, DE — ENO

SMYRNA, TN — MQY

SNOOP, MO — SU

SNORE, IA — SP

SNOW, CO — SXW

SNOW HILL, MD — SWL

SNOWBIRD, TN — SOT

SNUFF, TN — CK

SNYDER, TX — SDR

SOCORRO, NM — ONM

SOD HOUSE, NV — SDO

SOLBERG, NJ — SBJ

SOLDOTNA, AK — OLT

SONORA, TX — SOA

SOUTH, LA — POE

SOUTH BOSTON, VA — SBV

SOUTH KAUAI, HI — SOK

SPARREVOHN, AK — SQA

SPARTA, NJ — SAX

SPARTANBURG, SC — SPA

SPENCER, IA — SPW

SPIDA, MN — PK

SPINNER, IL — SPI

SPOFFORD, TX — PFO

SPOKANE, WA — GEG

SPOKANE INTL, WA — GEG

SPOKANE/FELTS FIELD, WA — SFF

SPORTYS, OH — PWF

SPRINGFIELD, MO — SGF

SPRINGFIELD, OH — SGH

SPRINGFIELD, OH — XSF

ST AUGUSTINE, FL — SGJ

ST CLOUD, MN — STC

ST CROIX, VI — COY

ST FRANCIS, KS — SYF

ST GEORGE, UT — UTI

ST JOHNS, AZ — SJN

ST JOSEPH, MO — STJ

ST LOUIS, MO — STL

ST LOUIS LAMBERT, MO — STL

ST MARYS, AK — SMA

ST PAUL, MN — STP

ST PAUL ISLAND, AK — SPY

ST PETERSBURG, FL — PIE

ST THOMAS, PA — THS

ST THOMAS, VI — STT

STALS, NC — IS

STANFIELD, AZ — TFD

STANWYCK, NY — SKU

STANWYCK, NY — SKU

STAUT, VA — SH

STILLWATER, NJ — STW

STILLWATER, OK — SWO

STINSON, TX — SSF

STOGE, MA — OW

STONEWALL, TX — STV

STONIA, NC — GHJ

STONYFORK, PA — SFK

STOYSTOWN, PA — SYS

STRIK, ID — TW

STURGIS, MI — IRS

STUTT, AR — TT

SUFFOLK CO, NY — FOK

SUGARLOAF MOUNTAIN, NC — SUG

SULPHUR, LA — AUR

SULPHUR SPRINGS, TX — SLR

SUMNER STRAIT, AK — SQM

SUMTER, SC — SMS

SUNSHINE, MO — SHY

SWIFT CURRENT, CANADA — YYN

SYRACUSE, NY — SYR