| RAA | Rakanda Airport | Rabaul |  Papua New Guinea |
| RAB | Tokua Airport | Rabaul | Papua New Guinea |
| RAC | John H. Batten Field Airport | Milwaukee |  United States of America |
| RAE | Arar Airport | Arar |  Saudi Arabia |
| RAG | Raglan Airport | Hamilton |  New Zealand |
| RAH | Rafha Airport | Rafha | Saudi Arabia |
| RAI | Nelson Mandela International Airport | Praia |  Cabo Verde |
| RAJ | Rajkot Airport | Rajkot |  India |
| RAK | Marrakesh Menara Airport | Marrakech |  Morocco |
| RAL | Riverside Municipalcipal Airport | Ontario | United States of America |
| RAM | Ramingining Airport | Maningrida |  Australia |
| RAN | Ravenna Airport | Rimini |  Italy |
| RAO | Leite Lopes Airport | Ribeirao Preto |  Brazil |
| RAP | Rapid City Regional Airport | Rapid City | United States of America |
| RAQ | Sugimanuru Airport | Kendari |  Indonesia |
| RAR | Rarotonga Airport | Rarotonga |  Cook Islands |
| RAS | Rasht Airport | Rasht |  Iran (Islamic Republic of) |
| RAT | Raduzhnyi Airport | Nizhnevartovsk |  Russian Federation |
| RAU | Rangpur Airport | Saidpur |  Bangladesh |
| RAV | Cravo Norte Airport | Arauca |  Colombia |
| RAW | Arawa Airport | Rabaul | Papua New Guinea |
| RAX | Oram Airport | Port Moresby | Papua New Guinea |
| RAZ | Rawala Kot Airport | Islamabad |  Pakistan |
| RBA | Rabat–Sale Airport | Rabat | Morocco |
| RBB | Borba Airport | Manaus | Brazil |
| RBC | Robinvale Airport | Mildura | Australia |
| RBD | Redbird | Dallas | United States of America |
| RBE | Ratanakiri Airport | Phnom Penh |  Cambodia |
| RBF | Big Bear City Airport | Palm Springs | United States of America |
| RBG | Roseburg Municipal Airport | Eugene | United States of America |
| RBH | Brooks Lodge Airport | Igiugig | United States of America |
| RBI | Rabi Airport | Taveuni |  Fiji |
| RBJ | Rebun Airport | Rishiri |  Japan |
| RBK | French Valley Airport | Palm Springs | United States of America |
| RBL | Red Bluff Fss Airport | Redding | United States of America |
| RBM | Wallmuhle Airport | Munich |  Germany |
| RBN | Fort Jefferson Airport | Key West | United States of America |
| RBO | Robore Airport | Santa Cruz |  Bolivia (Plurinational State of) |
| RBP | Rabaraba Airport | Alotau | Papua New Guinea |
| RBQ | Rurrenabaque Airport | La Paz | Bolivia (Plurinational State of) |
| RBR | Rio Branco-Placido de Castro International Airport | Rio Branco | Brazil |
| RBS | Orbost Airport | Cooma | Australia |
| RBT | Marsabit Airport | Meru |  Kenya |
| RBU | Roebourne Airport | Karratha | Australia |
| RBV | Ramata Airport | Munda |  Solomon Islands |
| RBW | Lowcountry Regional Airport | Charleston | United States of America |
| RBY | Ruby Airport | Ruby | United States of America |
| RCA | Ellsworth Air Force Base | Rapid City | United States of America |
| RCB | Richards Bay Airport | Richards Bay |  South Africa |
| RCE | Roche Harbor Airport | Friday Harbor | United States of America |
| RCH | Almirante Padilla International Airport | Riohacha | Colombia |
| RCK | Coffield Airport | College Station | United States of America |
| RCL | Redcliffe | Brisbane |  Vanuatu |
| RCM | Richmond Airport | Winton | Australia |
| RCN | American River Airport | Kingscote | Australia |
| RCO | Saint Agnant Airport | La Rochelle |  France |
| RCP | Cinder River Airport | Egegik | United States of America |
| RCQ | Reconquista Airport/Daniel Jurkic Airport | Resistencia |  Argentina |
| RCR | Fulton County Airport | South Bend | United States of America |
| RCS | Rochester Airport | London |  United Kingdom of Great Britain and Northern Ireland |
| RCT | Nartron Field Airport | Manistee | United States of America |
| RCU | Rio Cuarto Airport | Cordoba | Argentina |
| RCY | Rum Cay Airport | San Salvador |  Bahamas |
| RDA | Rockhampton Downs Airport | Mcarthur River | Australia |
| RDB | Red Dog Airport | Kotzebue | United States of America |
| RDC | Redencao Airport | Carajas | Brazil |
| RDD | Redding Airport | Redding | United States of America |
| RDE | Merdey Airport | Manokwari | Indonesia |
| RDG | Reading Regional Airport (Carl A. Spaatz Field) | Lancaster | United States of America |
| RDM | Roberts Field Airport | Redmond | United States of America |
| RDN | LTS Pulau Redang | Kuala Terengganu |  Malaysia |
| RDR | Grand Forks Air Force Base | Grand Forks | United States of America |
| RDS | Rincon de los Sauces Airport | Neuquen | Argentina |
| RDT | Richard Toll Airport | Dakar |  Senegal |
| RDU | Raleigh-durham International Airport | Raleigh/Durham | United States of America |
| RDV | Red Devil Airport | Tatalina | United States of America |
| RDZ | Marcillac Airport | Rodez | France |
| REA | Reao Airport | Atuona |  French Polynesia |
| REB | Rechlin Airport | Neubrandenburg | Germany |
| REC | Guararapes International Airport | Recife | Brazil |
| RED | Mifflin County Airport | State College | United States of America |
| REE | Reese Airpark | Lubbock | United States of America |
| REG | Tito Menniti Airport | Reggio Calabria | Italy |
| REH | Rehoboth Beach Airport | Salisbury-Ocean City | United States of America |
| REI | Regina Airport | Cayenne |  French Guiana |
| REL | Almirante Zar Airport | Trelew | Argentina |
| REN | Orenburg Airport | Orenburg | Russian Federation |
| REO | Rome State Airport | Boise | United States of America |
| REP | Siem Reap Airport | Siem Reap | Cambodia |
| RER | Base Aerea Del Sur Airport | Guatemala City |  Guatemala |
| RES | Resistencia Airport | Resistencia | Argentina |
| RET | Rost Airport | Rost |  Norway |
| REU | Reus Airport | Reus |  Spain |
| REW | Churhata Airport | Allahabad | India |
| REX | Gen Lucio Blanco Airport | Reynosa |  Mexico |
| REY | Reyes Airport | La Paz | Bolivia (Plurinational State of) |
| REZ | Resende Airport | Rio De Janeiro | Brazil |
| RFA | Rafai Airport | Bangui |  Central African Republic |
| RFD | Chicago Rockford International Airport (Greater Rockford Airport) | Chicago | United States of America |
| RFG | Rooke Field Airport | Corpus Christi | United States of America |
| RFK | Rollang Field Airport | Greenville |  Anguilla |
| RFN | Raufarhofn Airport | Egilsstadir |  Iceland |
| RFP | Raiatea Airport | Raiatea | French Polynesia |
| RFR | Rio Frio Airport | San Jose |  Costa Rica |
| RFS | Rosita | Managua |  Nicaragua |
| RGA | Hermes Quijada International Airport | Rio Grande | Argentina |
| RGE | Porgera Airport | Tari | Papua New Guinea |
| RGH | Balurghat Airport | Bagdogra | India |
| RGI | Rangiroa Airport | Rangiroa | French Polynesia |
| RGK | Gorno-Altaysk Airport | Gorno-Altaysk | Russian Federation |
| RGL | Piloto Civil Norberto Fernandez International Airport | Rio Gallegos | Argentina |
| RGN | Mingaladon Airport | Yangon |  Myanmar |
| RGR | Ranger Municipalcipal Airport | Abilene | United States of America |
| RGT | Japura Airport | Pekanbaru | Indonesia |
| RHA | Reykholar Airport | Isafjordur | Iceland |
| RHD | Termas de Rio Hondo Airport | Rio Hondo | Argentina |
| RHE | Reims Airport | Reims | France |
| RHG | Ruhengeri Airport | Kigali |  Rwanda |
| RHI | Rhinelander–Oneida County Airport | Rhinelander | United States of America |
| RHL | Roy Hill Airport | Newman | Australia |
| RHN | Skorpion Mine Airport | Oranjemund |  Namibia |
| RHO | Diagoras Airport | Rhodes |  Greece |
| RHP | Ramechhap Airport | Janakpur |  Nepal |
| RHV | Reid–Hillview Airport of Santa Clara County | San Jose | United States of America |
| RIA | Base Aerea De Santa Maria Airport | Santa Maria | Brazil |
| RIB | Riberalta Airport/Capitan Av. Selin Zeitun Lopez Airport | Riberalta | Bolivia (Plurinational State of) |
| RIC | Richmond International Airport | Richmond | Australia |
| RID | Richmond Municipalcipal Airport | Dayton | Australia |
| RIE | Rice Lake Airport | Eau Claire | United States of America |
| RIF | Richfield Municipal Airport | Cedar City | United States of America |
| RIG | Rio Grande Airport | Posadas | Argentina |
| RIJ | Juan Simons Vela Airport | Tarapoto |  Peru |
| RIK | Carrillo Airport | Tambor | Costa Rica |
| RIL | Garfield County Airport | Grand Junction | United States of America |
| RIM | San Nicolas Airport | Tarapoto | Peru |
| RIN | Ringi Cove Airport | Munda | Solomon Islands |
| RIR | Flabob Airport | Ontario | United States of America |
| RIS | Rishiri Airport | Rishiri | Japan |
| RIT | Rio Tigre Airport | Panama City |  Panama |
| RIV | March Air Reserve Base | Ontario | United States of America |
| RIW | Riverton Regional Airport | Riverton | United States of America |
| RIX | Riga International Airport | Riga |  Latvia |
| RIY | Riyan Mukalla Airport | Sana'a |  Yemen |
| RIZ | Rio Alzucar Airport | Panama City | Panama |
| RJA | Rajahmundry Airport | Rajahmundry | India |
| RJB | Rajbiraj Airport | Biratnagar | Nepal |
| RJH | Rajshahi Airport | Rajshahi | Bangladesh |
| RJI | Rajouri Airport | Srinagar | India |
| RJK | Rijeka Airport | Rijeka |  Croatia |
| RJL | Logrono–Agoncillo Airport | Logrono | Spain |
| RJN | Rafsanjan Airport | Kerman | Iran (Islamic Republic of) |
| RKC | Montague-Yreka Airport | Medford | United States of America |
| RKD | Knox County Regional Airport | Rockland | United States of America |
| RKE | Roskilde Airport | Copenhagen |  Denmark |
| RKH | Rock Hill Airport | Charlotte | United States of America |
| RKI | Rokot Airport | Padang | Indonesia |
| RKO | Sipora Airport | Padang | Indonesia |
| RKP | Aransas County Airport | Corpus Christi | United States of America |
| RKR | Robert S Kerr Airport | Fort Smith | United States of America |
| RKS | Sweetwater County Airport | Rock Springs | United States of America |
| RKT | Ras Al Khaimah Airport | Ras al-Khaimah |  United Arab Emirates |
| RKU | Kairuku Airport | Port Moresby | Papua New Guinea |
| RKV | Reykjavik Domestic Airport | Reykjavik | Iceland |
| RKW | Rockwood Municipal Airport | Knoxville | United States of America |
| RKY | Rokeby Airport | Weipa | Australia |
| RLA | Rolla Downtown | Fort Leonard Wood | United States of America |
| RLD | Richland Airport | Pasco | United States of America |
| RLG | Laage Airport | Rostock-Laage | Germany |
| RLO | Valle del Conlara Airport | Cordoba | Argentina |
| RLP | Rosella Plains Airport | Cairns | Australia |
| RLT | Arlit Airport | Niamey |  Niger |
| RLU | Bornite Upper Airport | Kobuk | United States of America |
| RMA | Roma Airport | Roma | Australia |
| RMB | Buraimi Airport | Khasab |  Oman |
| RMD | Ramagundam Airport | Hyderabad | India |
| RME | Griffiss International Airport | Syracuse | United States of America |
| RMF | Marsa Alam International Airport | Marsa Alam |  Egypt |
| RMG | Richard B Russell Airport | Chattanooga | United States of America |
| RMI | Miramare Airport | Rimini | Italy |
| RMK | Renmark Airport | Mildura | Australia |
| RMN | Rumginae Airport | Tabubil | Papua New Guinea |
| RMO | International Airport Chisinau | Chisinau |  Moldova (Republic of) |
| RMP | Rampart Airport | Fairbanks | United States of America |
| RMQ | Chingchuankang | Shalu |  Taiwan, Province of China |
| RMS | Ramstein Airport | Kaiserslautern | Germany |
| RMU | Murcia International Airport Corvera | Murcia | Spain |
| RNA | Ulawa Airport | Rabaul | Papua New Guinea |
| RNB | Ronneby Airport | Ronneby |  Sweden |
| RNC | Warren County Memorial Airport | Chattanooga | United States of America |
| RND | Randolph Air Force Base | San Antonio | United States of America |
| RNE | Renaison Airport | Saint Etienne | France |
| RNG | Rangely Airport | Vernal | United States of America |
| RNH | New Richmond Municipal Airport | Minneapolis | United States of America |
| RNI | Corn Island Airport | Managua | Nicaragua |
| RNJ | Yoronjima Airport | Yoronjima | Japan |
| RNL | Rennell Airport | Kirakira | Solomon Islands |
| RNN | Bornholm Airport | Bornholm | Denmark |
| RNO | Reno-Tahoe International Airport | Reno | United States of America |
| RNP | Rongelap Island Airport | Kwajalein |  Marshall Islands |
| RNR | Robinson River Airport | Popondetta | Papua New Guinea |
| RNS | St Jacques Airport | Rennes | France |
| RNT | Renton Airport | Seattle | United States of America |
| RNU | Ranau Airport | Kota Kinabalu | Malaysia |
| RNZ | Rensselaer Airport | Chicago | United States of America |
| ROA | Roanoke Regional Airport | Roanoke | United States of America |
| ROB | Roberts International Airport | Monrovia |  Liberia |
| ROC | Greater Rochester International Airport | Rochester | United States of America |
| ROD | Robertson Airfield | Cape Town | South Africa |
| ROG | Rogers Airport | Joplin | United States of America |
| ROH | Robinhood Airport | Cairns | Australia |
| ROI | Roi Et Airport | Roi Et |  Thailand |
| ROK | Rockhampton Airport | Rockhampton | Australia |
| ROL | Roosevelt Municipal Airport | Columbus | United States of America |
| RON | Rondon Airport | Tame | Colombia |
| ROO | Rondonopolis Airport | Rondonopolis | Brazil |
| ROP | Rota Airport | Rota |  Northern Mariana Islands |
| ROR | Babelthuap/Koror Airport | Koror |  Palau |
| ROS | Rosario – Islas Malvinas International Airport | Rosario | Argentina |
| ROT | Rotorua Airport | Rotorua | New Zealand |
| ROU | Rousse Airport | Bourgas |  Bulgaria |
| ROV | Rostov-on-Don Airport | Rostov | Russian Federation |
| ROW | Roswell International Air Center | Roswell | United States of America |
| ROX | Roseau Municipal Airport | Thief River Falls |  Dominica |
| ROY | Rio Mayo Airport | Comodoro Rivadavia | Argentina |
| RPA | Rolpa Airport | Bhairawa | Nepal |
| RPB | Roper Bar Airport | Groote Island | Australia |
| RPM | Ngukurr Airport | Groote Island | Australia |
| RPN | Rosh Pina Airport | Haifa | Namibia |
| RPR | Raipur Airport | Raipur | India |
| RPV | Roper Valley Airport | Mcarthur River | Australia |
| RPX | Roundup Airport | Billings | United States of America |
| RRA | Ronda Airport | Malaga | Spain |
| RRE | Marree Airport | Olympic Dam | Australia |
| RRG | Rodrigues Island Airport | Rodrigues Island |  Mauritius |
| RRI | Barora | Sege | Solomon Islands |
| RRK | Rourkela Airport | Ranchi | India |
| RRL | Merrill Municipal Airport | Wausau | United States of America |
| RRM | Marromeu Airport | Quelimane |  Mozambique |
| RRN | Serra Norte Airport | Carajas | Brazil |
| RRS | Roros Airport | Roros | Norway |
| RRT | Warroad Airport | Thief River Falls | United States of America |
| RRV | Robinson River Airport | Daru | Papua New Guinea |
| RSA | Santa Rosa Airport | Santa Rosa | Argentina |
| RSB | Roseberth Airport | Winton | Australia |
| RSD | Rock Sound International Airport | Rock Sound | Bahamas |
| RSE | Rose Bay Water Airport | Sydney | Australia |
| RSG | Serra Pelada Airport | Carajas | Brazil |
| RSH | Russian Mission Airport | Russian Mission | United States of America |
| RSI | Rio Sidra Airport | Panama City | Panama |
| RSJ | Rosario SPB Airport | Eastsound | United States of America |
| RSK | Abresso Airport | Manokwari | Indonesia |
| RSL | Russell Municipal Airport | Hays | United States of America |
| RSN | Ruston Airport | Monroe | United States of America |
| RSP | Raspberry Strait Airport | Larsen Bay | United States of America |
| RSS | Damazin Airport | Kassala |  Sudan |
| RST | Rochester International Airport | Rochester | United States of America |
| RSU | Yeosu Airport | Yeosu |  Korea (Republic of) |
| RSW | Southwest Florida International | Fort Myers | United States of America |
| RSX | Rouses Point Airport | Plattsburgh | United States of America |
| RTA | Rotuma Island Airport | Labasa | Fiji |
| RTB | Roatan Airport | Roatan |  Honduras |
| RTC | Ratnagiri Airport | Pune | India |
| RTD | Rotunda Airport | Punta Gorda | United States of America |
| RTE | Marguerite Bay Airport | Ketchikan | United States of America |
| RTG | Ruteng Airport | Bajawa | Indonesia |
| RTI | Roti Airport | Kupang | Indonesia |
| RTL | Spirit Lake Municipal Airport | Fort Dodge | United States of America |
| RTM | Rotterdam Zestienhoven Airport | Rotterdam |  Netherlands |
| RTN | Raton Municipal Airport (Crews Field) | Alamosa | United States of America |
| RTP | Rutland Plains Airport | Karumba | Australia |
| RTS | Rottnest Island Airport | Perth | Australia |
| RTW | Saratov Airport | Saratov | Russian Federation |
| RTY | Merty Airport | Broken Hill | Australia |
| RUA | Arua Airport | Kasese |  Uganda |
| RUF | Yuruf Airport | Jayapura | Indonesia |
| RUG | Rugao Airport | Nantong |  China |
| RUH | King Khaled International Airport | Riyadh | Saudi Arabia |
| RUI | Ruidoso Sierra Blanca Regional Airport | Roswell | United States of America |
| RUK | Rukumkot Airport | Nepalganj | Nepal |
| RUM | Rumjatar Airport | Tumling Tar | Nepal |
| RUN | Gillot Airport | Saint Denis de la Reunion |  Réunion |
| RUP | Rupsi Airport | Bagdogra | India |
| RUR | Rurutu Airport | Papeete | French Polynesia |
| RUS | Marau Sound Airport | Honiara | Solomon Islands |
| RUT | Rutland Airport | Rutland | United States of America |
| RUU | Ruti Airport | Wapenamanda | Papua New Guinea |
| RUV | Rubelsanto Airport | Flores | Guatemala |
| RUY | Copan Airport | San Pedro Sula | Honduras |
| RVA | Farafangana Airport | Fort Dauphin |  Madagascar |
| RVC | Rivercess Airport | Monrovia | Liberia |
| RVD | Rio Verde Airport | Rio Verde | Brazil |
| RVE | Los Colonizadores Airport | Tame | Colombia |
| RVH | Rzhevka | Saint Petersburg | Russian Federation |
| RVK | Rorvik Airport, Ryum | Roervik | Norway |
| RVN | Rovaniemi Airport | Rovaniemi |  Finland |
| RVO | Reivilo Airport | Sishen | South Africa |
| RVR | Green River Airport | Moab | Papua New Guinea |
| RVS | Richard Lloyd Jones Jr. Airport | Tulsa | United States of America |
| RVT | Ravensthorpe Airport | Esperance | Australia |
| RVV | Raivavae | Papeete | French Polynesia |
| RVY | Rivera Airport | Punta Del Este |  Uruguay |
| RWB | Rowan Bay Airport | Kake | United States of America |
| RWF | Redwood Falls Municipal Airport | Minneapolis | United States of America |
| RWI | Rocky Mount-wilson Airport | Greenville | United States of America |
| RWL | Rawlins Airport | Casper | United States of America |
| RWN | Rovno Airport | Ivano-Frankovsk |  Ukraine |
| RWS | Sumare Airport | Sao Paulo | Brazil |
| RXA | Raudha Airport | Sana'a | Yemen |
| RXS | Roxas City Airport | Roxas City |  Philippines |
| RYB | Rybinsk Airport | Yaroslavl | Russian Federation |
| RYG | Moss Airport | Oslo | Norway |
| RYK | Sheikh Zayed International Airport | Rahim Yar Khan | Pakistan |
| RYN | Royan – Medis Aerodrome | La Rochelle | France |
| RYO | Rio Turbio Airport | El Calafate | Argentina |
| RYY | Cobb County - McCollum Field | Atlanta | United States of America |
| RZA | Santa Cruz Airport | Rio Gallegos | Argentina |
| RZE | Jasionka Airport | Rzeszow |  Poland |
| RZN | Ryazan Airport | Lipetsk | Russian Federation |
| RZP | Cesar Lim Rodriguez Airport | Puerto Princesa | Philippines |
| RZR | Ramsar Airport | Now Shahr | Iran (Islamic Republic of) |
| RZS | Sawan | Sukkur | Pakistan |
| RZZ | Halifax County Airport | Greenville | United States of America |