| CityName | Code | AirportName | State |
| ** Unknown ** | IAG | NIAGARA FALLS INTL | |
| 47-Mile Mine | UXM | 47-MILE MINE | AK |
| Aberdeen | APG | PHILLIPS AAF | MD |
| Aberdeen | ABR | ABERDEEN REGIONAL | SD |
| Abilene | ABI | ABILENE MUNICIPAL | TX |
| Abilene | DYS | DYESS AFB | TX |
| Adak Island | ADK | ADAK ISLAND NS | AK |
| Addison | ADS | ADDISON | TX |
| Aguadilla | BQN | BORINQUEN | |
| Aiken | AIK | AIKEN MUNICIPAL | SC |
| Akhiok | AKK | AKHIOK SPB | AK |
| Akiachak | KKI | AKIACHAK SPB | AK |
| Akiak | AKI | AKIAK | AK |
| Akron/Canton | CAK | AKRON/CANTON REGL | OH |
| Akutan | KQA | AKUTAN | AK |
| Alakanuk | AUK | ALAKANUK | AK |
| Alameda | NGZ | ALAMEDA NAS | CA |
| Alamogordo | ALM | ALAMOGORDO MUNICIPAL | NM |
| Alamogordo | HMN | HOLLOMAN AFB | NM |
| Alamosa | ALS | ALAMOSA MUNICIPAL | CO |
| Albany | ABY | DOUGHERTY COUNTY | GA |
| Albany | NAB | ALBANY NAS | GA |
| Albany | ALB | ALBANY COUNTY | NY |
| Albion | ALI | MI | |
| Albuquerque | ABQ | ALBUQUERQUE INTL | NM |
| Albuquerque | ZXB | DOUBLE EAGLE II | NM |
| Aleknagik | WKK | ALEKNAGIK | AK |
| Alexandria | AEX | ENGLAND AFB | LA |
| Alexandria | ESF | ESLER FIELD | LA |
| Alexandria | AXN | ALEXANDRIA MUNICIPAL | MN |
| Alexandria Bay | AXB | ALEXANDER BAY | NY |
| Alitak | ALZ | ALITAK SPB | AK |
| Allakaket | AET | ALLAKAKET | AK |
| Allegheny | AGC | ALLEGHENY COUNTY | PA |
| Allentown/Bethlehem | ABE | ALLENTOWN | PA |
| Alliance | AIA | ALLIANCE MUNICIPAL | NE |
| Alma | AMN | GRATIOT COMMUNITY | MI |
| Alpena | APN | ALPENA COUNTY REGL | MI |
| Alpine | ALE | ALPINE | TX |
| Alton | ALN | IL | |
| Altoona | AOO | BLAIR COUNTY | PA |
| Altus | AXS | ALTUS MUNICIPAL | OK |
| Altus | LTS | ALTUS AFB | OK |
| Alyeska | AQY | ALYESKA | AK |
| Amarillo | AMA | AMARILLO INTL | TX |
| Ambler | ABL | AMBLER RIVER | AK |
| Amchitka Island | AHT | AMCHITKA | AK |
| Americus | VWT | SOUTHER FIELD | GA |
| Amook | AOS | AMOOK | AK |
| Anacortes | OTS | ANACORTES | WA |
| Anaheim | ANA | ANAHEIM | CA |
| Anaktuvuk Pass | AKP | ANAKTUVUK PASS | AK |
| Anchorage | ANC | ANCHORAGE INTL | AK |
| Anchorage | EDF | ELMENDORF AFB | AK |
| Anchorage | MRI | MERRILL FIELD | AK |
| Anderson | AID | ANDERSON MUNICIPAL | IN |
| Anderson | AND | ANDERSON COUNTY | SC |
| Angel Fire | AXX | ANGEL FIRE | NM |
| Angoon | AGN | ANGOON SPB | AK |
| Aniak | ANI | ANIAK | AK |
| Aniakchak | VZP | ANIAKCHAK | AK |
| Anita Bay | AIB | ANITA BAY | AK |
| Ann Arbor | ARB | ANN ARBOR MUNICIPAL | MI |
| Annapolis | ANP | MD | |
| Annette Island | ANN | ANNETTE ISLAND | AK |
| Anniston | ANB | ANNISTON COUNTY | AL |
| Antlers | ATE | ANTLERS MUNICIPAL | OK |
| Anvik | ANV | ANVIK | AK |
| Apple Valley | APV | APPLE VALLEY | CA |
| Appleton | ATW | OUTAGAMIE COUNTY | WI |
| Arapahoe | APA | ARAPAHOE COUNTY | CO |
| Arcadia | JAR | CA | |
| Arctic Village | ARC | ARCTIC VILLAGE | AK |
| Ardmore | ADM | ARDMORE MUNICIPAL | OK |
| Ardmore | AHD | ARDMORE DOWNTOWN | OK |
| Arecibo | ARE | ARECIBO | PR |
| Areicibo | ABO | PR | |
| Arlington | VWO | ARLINGTON MUNICIPAL | WA |
| Artesia | ATS | ARTESIA | NM |
| Asbury Park | ARX | ASBURY PARK | NJ |
| Asheville | AVL | ASHEVILLE MUNICIPAL | NC |
| Ashland | XXU | ASHLAND-SUMNER PARKR | OR |
| Ashland | ASX | JOHN F KENNEDY MEML | WI |
| Aspen | ASE | ASPEN | CO |
| Astoria | AST | PORT OF ASTORIA | OR |
| Athens | AHN | ATHENS MUNICIPAL | GA |
| Athens | ATO | OHIO UNIVERSITY | OH |
| Atka | AKB | ATKA | AK |
| Atlanta | ATL | HARTSFIELD INTL | GA |
| Atlanta | FTY | FULTON COUNTY | GA |
| Atlanta | PDK | DEKALB-PEACHTREE | GA |
| Atlantic City | ACY | ATLANTIC CITY INTL | NJ |
| Atlantic City | AIY | BADER FIELD | NJ |
| Atlantic City-Steel Pier | JSL | NJ | |
| Atmautluak | ATT | ATMAUTLUAK | AK |
| Atqasuk | ATK | ATQASUK | AK |
| Attu Island | ATU | CASCO COVE CGS | AK |
| Auburn/Opelia | AUO | AUBURN-OPELIKA | AL |
| Augusta | AGS | BUSH FIELD | GA |
| Augusta | DNL | DANIEL FIELD | GA |
| Augusta | AUG | AUGUSTA STATE | ME |
| Austin | AUM | AUSTIN | MN |
| Austin | ASQ | AUSTIN | NV |
| Austin | AUS | ROBERT MUELLER MUNI | TX |
| Austin | BSM | BERGSTROM AFB | TX |
| Avon Park | AVO | AVON PARK MUNICIPAL | FL |
| Aztec | XWH | AZTEC MUNICIPAL | NM |
| Bagdad | BGT | BAGDAD | AZ |
| Baker | BKE | BAKER MUNICIPAL | OR |
| Baker Island | BAR | BAKER AAF | CA |
| Bakersfield | BFL | MEADOWS FIELD | CA |
| Baltimore Grnblt | GBO | DC | |
| Baltimore/Washington Intl | BWI | BALTIMORE/WASH INTL | MD |
| Bambari | BBY | BAMBARI | MA |
| Bandon | BDY | BANDON STATE | OR |
| Bangor | BGR | BANGOR INTERNATIONAL | ME |
| Banning | BNG | BANNING MUNICIPAL | WA |
| Bar Harbor | BHB | BAR HARBOUR | ME |
| Baranof | BNF | WARM SPRING BAY SPB | AK |
| Barbers Point | NAX | BARBERS POINT NAS | HI |
| Barrow | BRW | BARROW WBAS | AK |
| Barter Island | BTI | BARTER ISLAND | AK |
| Bartlesville | BVO | BARTLESVILLE | OK |
| Bartletts | BSZ | BARTLETTS | AK |
| Batesville | BVX | BATESVILLE MUNICIPAL | AR |
| Batman | BAL | BATMAN | |
| Baton Rouge | BTR | RYAN | LA |
| Battle Creek | BTL | W K KELLOGG REGL | MI |
| Battle Mountain | BAM | LANDER COUNTY | NV |
| Baudette | BDE | BAUDETTE INTL | MN |
| Bay City | BBC | BAY CITY MUNICIPAL | TX |
| Bay St. Louis | UXP | STENNIS INTL | MS |
| Beatrice | BIE | BEATRICE MUNICIPAL | NE |
| Beaufort | BFT | BEAUFORT COUNTY | SC |
| Beaumont/Pt Arthur | BPT | JEFFERSON COUNTY | TX |
| Beaver | WBQ | BEAVER | AK |
| Beaver Creek | ZBV | CO | |
| Beaver Inlet | BVD | BEAVER INLET SEWPORT | AK |
| Beckley | BKW | RALEIGH COUNTY MEML | WV |
| Bedford | BED | HANSCOM FIELD | MA |
| Bell Island | KBE | HOT SPRINGS SPB | AK |
| Belleville | BLV | SCOTT AFB | IL |
| Bellingham | BLI | BELLINGHAM MUNI | WA |
| Belmar | BLM | MONMOUTH COUNTY | NJ |
| Beluga | BVU | BELUGA | AK |
| Bemidji | BJI | BEMIDJI-BELTRAMI CO | MN |
| Bemidji | VWL | NARY NATL SHEFLAND | MN |
| Benton Harbor | BEH | ROSS FIELD | MI |
| Berlin | BML | BERLIN MUNICIPAL | NH |
| Bermuda Dunes | UDD | BERMUDA DUNES | CA |
| Bernard | VWP | BERNARD USFS | ID |
| Bethel | BET | BETHEL | AK |
| Bettles | BTT | BETTLES | AK |
| Beverley Springs | BVY | BEVERLY MUNICIPAL | MA |
| BI State Parks | CPS | BI-STATE PARKS | IL |
| Big Bear | RBF | BIG BEAR CITY | CA |
| Big Creek | BIC | BIG CREEK | AK |
| Big Delta | BIG | BIG DELTA INTERMED. | AK |
| Big Lake | BGQ | BIG LAKE | AK |
| Big Mountain | BMX | BIG MOUNTAIN | AK |
| Big Rapids | WBR | ROBEN-HOOD | MA |
| Billings | BIL | LOGAN INTL | MT |
| Biloxi | BIX | KEESLER AFB | MS |
| Binghamton | BGM | LINK FIELD/BROOME CO | NY |
| Birch Creek | KBC | BIRCH CREEK | AK |
| Birmingham | BHM | BIRMINGHAM MUNICIPAL | AL |
| Bisbee | BSQ | BISBEE MUNICIPAL | AZ |
| Bishop | BIH | BISHOP | CA |
| Bismarck | BIS | BISMARCK MUNICIPAL | ND |
| Blackfoot | XWL | MCCARLEY FLD | ID |
| Blacksburg | BCB | VIRGINIA TECH | VA |
| Blaine | BWS | BLAINE MUNICIPAL | WA |
| Blakely Island | BYW | BLAKELY ISLAND | WA |
| Blanding | BDG | BLANDING | UT |
| Block Island | BID | BLOCK ISLAND | RI |
| Bloomington | BMI | BLOOMINGTON-NORMAL | IL |
| Bloomington | BMG | MONROE COUNTY | IN |
| Blue Bell | BBX | WINGS FIELD | PA |
| Bluefield | BLF | MERCER COUNTY | WV |
| Bluff | WQL | BLUFF | AK |
| Bluffton | BFQ | OH | |
| Blythe | BLH | BLYTHE | CA |
| Blytheville | BYH | BLYTHEVILLE AFB | AR |
| Blytheville | HKA | BLYTHEVILLE MUNI | AR |
| Boca Raton | BCT | BOCA RATON PUBLIC | FL |
| Boise | BOI | BOISE AIR TERM/GOWEN | ID |
| Bonners Ferry | QQL | BOUNDARY COUNTY | ID |
| Borger | BGD | HUTCHINSON COUNTY | TX |
| Bornite | RLU | BORNITE UPPER | AK |
| Borrego Springs | BXS | BORREGO SPRINGS | CA |
| Boston | BOS | LOGAN INTERNATIONAL | MA |
| Boston | JBC | BOSTON CITY HELIPORT | MA |
| Boston | QQD | NASHUA STREET HELIPT | MA |
| Boswell Bay | BSW | BOSWELL BAY | AK |
| Boulder Hiltons | WHH | CO | |
| Boundary | BYA | BOUNDARY | AK |
| Bowling Green | BWG | WARREN COUNTY | KY |
| Bowman | BWM | BOWMAN COUNTY | ND |
| Boxborough | BXC | SHERATON INN HELIPT | MA |
| Bozeman | BZN | GALLATIN FIELD | MT |
| Bradford | BFD | BRADFORD REGIONAL | PA |
| Brainerd | BRD | CROW WING COUNTY | MN |
| Branson | ZBX | JOHN THE DIVER | MO |
| Breckenridge | QKB | CO | |
| Bremerton | PWT | KITSAP COUNTY | WA |
| Brevig Mission | KTS | BREVIG MISSION | AK |
| Brewster | QQO | ANDERSON FIELD | WA |
| Bridgeport | BDR | BRIDGEPORT MUNICIPAL | CT |
| Bridger | WQT | BRIDGER MUNICIPAL | MT |
| Brigham City | BMC | BRIGHAM CITY | UT |
| Britrail Pass | QQB | KEYES POINT | NY |
| Brookings | BOK | BROOKINGS STATE | OR |
| Brookings | BKX | BROOKINGS MUNICIPAL | SD |
| Brooks Lake | BKF | BROOKS LAKE | AK |
| Brooks Lodge | RBH | BROOKS LODGE | AK |
| Broomfield | BJC | JEFFCO | CO |
| Brownsville | BRO | SOUTH PADRE ISL INTL | TX |
| Brownwood | BWD | BROWNWOOD MUNICIPAL | TX |
| Brundige | VZI | BRUNDIGE MUNICIPAL | AL |
| Brunswick | BQK | GLYNCO JETPORT | GA |
| Brunswick | NHZ | BRUNSWICK NAS | ME |
| Bryce Canyon | BCE | BRYCE CANYON | UT |
| Buckland | BKC | BUCKLAND | AK |
| Buffalo | BUF | BUFFALO | NY |
| Buffalo | BYG | JOHNSON COUNTY | WY |
| Bullfrog Basin | BFG | UT | |
| Bullhead City/Laughlin | BHC | BULLHEAD LAUGHLIN | AZ |
| Burbank | BUR | HOLLYWOOD-BURBANK | CA |
| Burley | BYI | BURLEY | ID |
| Burlington | BRL | BURLINGTON MUNI | IA |
| Burlington | BBF | BURLINGTON | MA |
| Burlington | BTV | BURLINGTON INTL | VT |
| Burns | BNO | BURNS MUNICIPAL | OR |
| Butler | BTP | GRAHAM FIELD | PA |
| Butte | BTM | SILVER BOW COUNTY | MT |
| Cabin Creek | CBZ | CABIN CREEK | AK |
| Cadillac | CAD | WEXFORD COUNTY | MI |
| Cairo | CIR | CAIRO | IL |
| Calder Bay | UXI | CALDER BAY | AK |
| Caldwell | CDW | CALDWELL WRIGHT | NJ |
| Calexico | CXL | CALEXICO INTL | CA |
| California City | VWI | CALIFORNIA CITY MUNI | CA |
| Callaway Garden | CWG | CALLAWAY GARDENS | GA |
| Cambridge | JHY | MA | |
| Cambridge | XXG | ARTHUR D LITTLE HLPT | MA |
| Cambridge | CGE | CAMBRIDGE | MD |
| Camden | CDH | HARRELL FIELD | AR |
| Cameron | VWJ | MCNEIL | SC |
| Camp Douglas | VOK | VOLK FIELD | WI |
| Camp Springs | ADW | ANDREWS AFB | MD |
| Camp Springs | NSF | ANDREWS NAF | MD |
| Campbell Lagoon | VZD | CAMPBELL LAGOON | AK |
| Campbellsville | WQN | TAYLOR COUNTY NDB | KY |
| Candle | CDL | CANDLE | AK |
| Canon City | CNE | CANON CITY | CO |
| Cape Canaveral | XMR | CAPE CANAVERAL AFS | FL |
| Cape Girardeau | CGI | CAPE GIRARDEAU MUNI | MO |
| Cape Greig | VZW | CAPE GREIG | AK |
| Cape Lisburne | LUR | CAPE LISBURNE AFS | AK |
| Cape May | WWD | CAPE MAY COUNTY | NJ |
| Cape Newenham | EHM | CAPE NEWENHAM AFS | AK |
| Cape Peirce | VZV | CAPE PEIRCE | AK |
| Cape Pole | CZP | CAPE POLE | AK |
| Cape Romanzof | CZF | CAPE ROMANZOF AFS | AK |
| Cape Sarichef | CSH | CAPE SARICHEF AFS | AK |
| Cape Yakataga | CYT | YAKATAGA INTERMEDIAT | AK |
| Carbondale | MDH | SOUTHERN ILLINOIS | IL |
| Caribou | CAR | CARIBOU MUNICIPAL | ME |
| Carlsbad | CNM | CAVERN CITY AIR TERM | NM |
| Carmel Valley | ZXR | CARMEL VALLEY | CA |
| Carroll | CIN | ARTHUR N NEU | OH |
| Carson City | CSN | CARSON CITY | NV |
| Casa Grande | CGZ | CASA GRANDE MUNI | AZ |
| Casper | CPR | CASPER | WY |
| Cat Island | CAT | CAT ISLAND | KY |
| Catalina Island-Sky | CIB | AIRPORT IN THE SKY | CA |
| Catalina-Avalon Bay | AVX | AVALON BAY | CA |
| Cedar City | CDC | CEDAR CITY MUNICIPAL | UT |
| Cedar Rapids/Iowa City | CID | CEDAR RAPIDS MUNI | IA |
| Center Island | QQA | CENTER ISLAND | WA |
| Central | CEM | CENTRAL | AK |
| Centralia | ENL | CENTRALIA MUNICIPAL | IL |
| Chadron | CDR | CHADRON MUNICIPAL | NE |
| Chalkyitsik | CIK | CHALKYITSIK | AK |
| Challis | CHL | CHALLIS | ID |
| Champaign | CMI | WILLARD UNIVERSITY | IL |
| Chandalar | WCR | CHANDALAR LAKE | AK |
| Chandler | CHD | WILLIAMS AFB | AZ |
| Chandler | SLJ | STELLAR AIR PARK | AZ |
| Chariot | UXL | CHARIOT | AK |
| Charleston | CHS | CHARLESTON AFB MUNI | SC |
| Charleston | CRW | YEAGER | WV |
| Charlotte | CLT | DOUGLAS MUNICIPAL | NC |
| Charlottesville | CHO | ALBEMARLE | VA |
| Chatham | CYM | CHATHAM SPB | AK |
| Chattanooga | CHA | LOVELL FIELD | TN |
| Chefornak | CYF | CRYSTAL LAKE | AK |
| Chehalis | CLS | CENTRALIA | WA |
| Chelan | VWE | CHELAN MUNICIPAL | WA |
| Chena Hot Sprngs | CEX | CHENA HOT SPRINGS | AK |
| Chernofski | KCN | CHERNOFSKI HARBOR | AK |
| Cherry Point | NKT | CHERRY POINT MCAS | NC |
| Chevak | VAK | CHEVAK | AK |
| Cheyenne | CYS | CHEYENNE MUNICIPAL | WY |
| Cheyenne | FEW | WARREN AFB | WY |
| Chicago | CHI | METROPOLITAN AREA | IL |
| Chicago-Meigs | CGX | MERRILL C MEIGS | IL |
| Chicago-Midway | MDW | MIDWAY | IL |
| Chicago-O'Hare | ORD | O'HARE INTERNATIONAL | IL |
| Chicago-Pal Waukee | PWK | IL | |
| Chickasha | CHK | CHICKASHA MUNICIPAL | OK |
| Chicken | CKX | CHICKEN | AK |
| Chico | CIC | CHICO MUNI | CA |
| Chicopee | CEF | WESTOVER METRO | MA |
| Chignik | KCL | CHIGNIK LAGOON | AK |
| Chignik Lake | WQZ | CHIGNIK LAKE | AK |
| Chignik-Chignik Lake | KCQ | CHIGNIK | AK |
| Chignik-Fisheries | KCG | CHIGNIK FISHERIES | AK |
| Chiloquin | CHZ | CHILOQUIN STATE | OR |
| Chino | CNO | CHINO | CA |
| Chisana | CZN | CHISANA FIELD | AK |
| Chitina | CXC | CHITINA | AK |
| Chomley | CIV | CHOMLEY | AK |
| Chomondely Sound | ZXH | CHOMONDELY SOUND | AK |
| Chowchilla | UXD | CHOWCHILLA | CA |
| Chuathbaluk | CHU | CHUATHBALUK | AK |
| Cimarron | UXS | CIMARRON MUNICIPAL | KS |
| Cincinnati | CVG | GREATER CINCINNATI | OH |
| Cincinnati/Lunken | LUK | CINCINNATI MUNICIPAL | OH |
| Cinder Mountain | VZT | CINDER MOUNTAIN | AK |
| Circle | IRC | CIRCLE CITY | AK |
| Circle/Hot Springs | CHP | CIRCLE HOT SPRINGS | AR |
| Clarendon | XXD | CLARENDON | TX |
| Clark | PLK | MO | |
| Clarks Point | CLP | CLARKS POINT | AK |
| Clarksburg | CKB | BENEDUM | WV |
| Clarksville | CKV | OUTLAW FIELD | TN |
| Clear Lake | CKE | PEARCE FIELD | CA |
| Clear Lake City | CLC | CLEARLAKE METROPORT | TX |
| Clearwater | CLW | FL | |
| Clemson | CEU | OCONEE COUNTY | SC |
| Cleveland | CLE | HOPKINS INTL | OH |
| Cleveland/Cuyahoga | CGF | CUYAHOGA COUNTY | OH |
| Cleveland-Lakefront | BKL | BURKE LAKEFRONT | OH |
| Clinton | CWI | CLINTON MUNICIPAL | IA |
| Clinton | CLK | CLINTON MUNICIPAL | OK |
| Clinton | CSM | SHERMAN | OK |
| Clover Bay | ZXN | CLOVER BAY | AK |
| Cloverdale | ZXT | CLOVERDALE MUNICIPAL | CA |
| Clovis | CVN | CLOVIS MUNICIPAL | NM |
| Clovis-Cannon | CVS | CANNON AFB | NM |
| Coal Bay | ZXI | COAL BAY | AK |
| Coalinga | CLG | COALINGA MUNICIPAL | CA |
| Coatesville | CTH | CHESTER COUNTY | PA |
| Cocoa | COF | PATRICK AFB | FL |
| Cody | COD | YELLOWSTONE REGIONAL | WY |
| Coeur d'Alene | COE | COEUR D'ALENE | ID |
| Coffee Point | CFA | COFFEE POINT | AK |
| Coffman Cove | KCC | COFFMAN COVE SPB | AK |
| Colby | CBK | COLBY MUNICIPAL | KS |
| Cold Bay | CDB | COLD BAY | AK |
| Coldfoot | CXF | COLDFOOT | AK |
| Coll Island | COL | COLL/BALLARD | OH |
| College Park | CGS | COLLEGE PARK | MD |
| College Station | CLL | EASTERWOOD FIELD | TX |
| Collinsville Mine | XWB | COLLINSVILLE MINE | AK |
| Colorado Creek | KCR | COLORADO CREEK | AK |
| Colorado Springs | COS | PETERSON FIELD | CO |
| Columbia | COA | COLUMBIA | CA |
| Columbia | CAE | COLUMBIA METROPLTN | SC |
| Columbia | CUB | OWENS FIELD | SC |
| Columbia | MMT | MC ENTIRE ANGB | SC |
| Columbia | MRC | MAURY COUNTY | TN |
| Columbia/Jeff City | COU | COLUMBIA REGIONAL | MO |
| Columbus | CSG | METROPOLITAN AREA | GA |
| Columbus | MKF | MCKENNA AAF | GA |
| Columbus | CLU | COLUMBUS MUNICIPAL | IN |
| Columbus | CBM | COLUMBUS AFB | MS |
| Columbus | OLU | COLUMBUS MUNICIPAL | NE |
| Columbus | CMH | PORT COLUMBUS INTL | OH |
| Columbus | LCK | RICKENBACKER | OH |
| Columbus/Starkville | UBS | LOWNDES COUNTY | MS |
| Columbus-Golden Triangle | GTR | GOLDEN TRIANGLE REGL | MS |
| Columbus-Ohio State | OSU | OH | |
| Concord | CCR | BUCHANAN FIELD | CA |
| Concord | CON | CONCORD | NH |
| Connell | WQI | CONNELL CITY | WA |
| Conroe | CXO | MONTGOMERY CO | TX |
| Copalis | XWE | COPALIS STATE | WA |
| Copper Mountain | QCE | CO | |
| Cordova | CDV | MILE 13 FIELD | AK |
| Corinth | CRX | ROSCOE TURNER | MS |
| Corner Bay | CBA | CORNER BAY | AK |
| Corpus Christi | CRP | CORPUS CHRISTI INTL | TX |
| Corpus Christi | NGP | CORPUS CHRISTI NAS | TX |
| Cortez | CEZ | MONTEZUMA COUNTY | CO |
| Cortland | CTX | CORTLAND COUNTY | NY |
| Corvallis | CVO | CORVALLIS | OR |
| Council | CIL | MELSING CREEK | AK |
| Covelo | XXM | ROUND VALLEY | CA |
| Crafton Island | CJI | CRAFTON SPB | AK |
| Craig | CGA | CRAIG SPB | AK |
| Craig | CIG | CRAIG-MOFFAT | CO |
| Crescent City | CEC | JACK MC NAMARA FIELD | CA |
| Crested Butte | CSE | CRESTED BUTTE | CO |
| Crestview | CEW | BOB SIKES | FL |
| Creswell | XXS | HOBBY FIELD | OR |
| Crooked Creed | CKD | CROOKED CREEK | AK |
| Cross City | CTY | CROSS CITY | FL |
| Crossville | CSV | CROSSVILLE MEMORIAL | TN |
| Cube Cove | CUW | CUBE COVE | AK |
| Culebra | CPX | CULEBRA | |
| Cumberland | CBE | WILEY FORD | MD |
| Custer | VWF | CUSTER COUNTY | SD |
| Cut Bank | CTB | CUT BANK | MT |
| Daggett | DAG | BARSTOW-DAGGETT | CA |
| Dahl Creek | DCK | DAHL CREEK | AK |
| Dallas | DAL | LOVE FIELD | TX |
| Dallas/Fort Worth | AFW | FORT WORTH ALLIANCE | TX |
| Dallas/Ft Worth | DFW | DALLAS/FT WORTH INTL | TX |
| Dallas/Ft Worth | DNE | DALLAS NORTH | TX |
| Dallas/Ft Worth | JDB | DOWNTOWN HELIPORT | TX |
| Dallas/Ft Worth | RBD | REDBIRD | TX |
| Dalton | DNN | DALTON MUNICIPAL | GA |
| Danbury | DXR | DANBURY MUNICIPAL | CT |
| Danger Bay | DGB | AK | |
| Danville | DNV | VERMILION COUNTY | IL |
| Danville | DAN | DANVILLE MUNICIPAL | VA |
| David River | WQW | DAVID RIVER | AK |
| Dayton | DAY | JAMES COX/DAYTON INT | OH |
| Dayton | FFO | PATTERSON AFB | OH |
| Daytona Beach | DAB | DAYTONA BEACH REGL | FL |
| De Ridder | DRI | LA | |
| Death Valley | DTH | DEATH VALLEY | CA |
| Decatur | DCU | PRYOR FIELD | AL |
| Decatur | DEC | DECATUR | IL |
| Decatur Shores | XXV | DECATUR SHORES | WA |
| Decorah | DEH | DECORAH MUNICIPAL | IA |
| Deep Bay | WDB | DEEP BAY | AK |
| Deer Lodge | VWW | DEER LODGE CITY/CO | MT |
| Deering | DRG | DEERING | AK |
| Defiance | DFI | DEFIANCE MEMORIAL | OH |
| Del Rio | DLF | LAUGHLIN AFB | TX |
| Del Rio | DRT | DEL RIO INTL | TX |
| Delta | ZXY | BLAKE FIELD | CO |
| Delta | DTA | DELTA | UT |
| Denver | BFK | BUCKLEY ANGB | CO |
| Denver | DEN | STAPLETON INTL | CO |
| Des Moines | DSM | DES MOINES MUNICIPAL | IA |
| Destin | DSI | DESTIN | FL |
| Detroit | DET | DETROIT CITY | MI |
| Detroit | DTT | METROPOLITAN AREA | MI |
| Detroit | YIP | WILLOW RUN | MI |
| Detroit Lakes | DTL | DETROIT LAKES MUNI | MN |
| Detroit-Metro | DTW | WAYNE COUNTY | MI |
| Devils Lake | DVL | DEVILS LAKE MUNI | ND |
| Dexter | XWJ | DEXTER REGIONAL | ME |
| DFW Metroplex | QDF | TX | |
| Dickinson | DIK | DICKINSON | ND |
| Digital Maynard | QPK | MA | |
| Dillingham | DLG | DILLINGHAM MUNI | AK |
| Dinsmore | WQE | DINSMORE MUNICIPAL | CA |
| Dodge City | DDC | DODGE CITY MUNICIPAL | KS |
| Dolomi | DLO | DOLOMI | AK |
| Dora Bay | DOF | AK | |
| Dorado | DDP | DORADO BEACH | |
| Dorris | WQH | BUTTE VALLEY | CA |
| Dothan | DHN | DOTHAN | AL |
| Douglas | DUG | BISBEE-DOUGLAS INTL | AZ |
| Douglas | DGW | CONVERSE COUNTY | WY |
| Douglas Municipal | DGL | DOUGLAS MUNICIPAL | AZ |
| Dover | DOV | DOVER AFB | DE |
| Dover | DVX | DE | |
| Downey | JDY | DOWNEY HELIPORT | CA |
| Drift River | DRF | DRIFT RIVER | AK |
| Driftwood Bay | DFB | DRIFTWOOD BAY | AK |
| Driggs | XWW | TETON PEAKS | ID |
| Drummond Island | DRE | DRUMMOND ISLAND | MI |
| Du Bois | DUJ | JEFFERSON COUNTY | PA |
| Dublin | DBN | W H BUD BARRON | GA |
| Dubuque | DBQ | DUBUQUE MUNICIPAL | IA |
| Dugway | DPG | MICHAEL AAF | UT |
| Duluth/Superior | DLH | DULUTH INTERNATIONAL | MN |
| Duncan | DUC | HALLIBURTON | OK |
| Durango | DRO | LA PLATA | CO |
| Durango/Animas | AMK | ANIMAS AIR PARK | CO |
| Dutch Harbor | DUT | EMERGENCY FIELD | AK |
| Dutch John | UXG | DUTCH JOHN | UT |
| Eagle | EAA | EAGLE MUNICIPAL | AK |
| Eagle Pass | EGP | MAVERICK COUNTY | TX |
| Eagle River | EGV | WI | |
| East Hampton | HTO | EAST HAMPTON | NY |
| East Hartford | EHT | RENTSCHLER | CT |
| East Tawas | ECA | EMMET COUNTY AIRPORT | MI |
| Eastland | ETN | EASTLAND MUNICIPAL | TX |
| Easton | ESN | EASTON MUNICIPAL | MD |
| Eastsound | ESD | ORCAS ISLAND | WA |
| Eastsound | QQS | WALDRONAIRE | WA |
| Eau Claire | EAU | EAU CLAIRE MUNICIPAL | WI |
| Edna Bay | EDA | EDNA BAY | AK |
| Edwards | EDW | EDWARDS AFB | CA |
| Eek | EEK | EEK | AK |
| Egegik | EGX | EGEGIK | AK |
| Ekuk | KKU | E |