| IATA | ICAO | Airport name | Location served | Time | DST |
| -RA- |
| RAA | | Rakanda Airport[1] | Rakanda, Papua New Guinea | | |
| RAB | AYTK | Rabaul Airport (Tokua Airport) | Rabaul, Papua New Guinea | | |
| RAC | KRAC | John H. Batten Airport | Racine, Wisconsin, United States | | |
| RAD | | Road Town Seaplane Base[1] | Tortola, British Overseas Territory of Virgin Islands | | |
| RAE | OERR | Arar Domestic Airport | Arar, Saudi Arabia | | |
| RAF | SAFR | Rafaela Airport[1] | Rafaela, Santa Fe, Argentina | | |
| RAG | NZRA | Raglan Aerodrome[1] | Raglan, New Zealand | | |
| RAH | OERF | Rafha Domestic Airport[1] | Rafha, Saudi Arabia | | |
| RAI | GVNP | Nelson Mandela International Airport | Praia, Cape Verde | | |
| RAJ | VARK | Rajkot Airport | Rajkot, Gujarat, India | | |
| RAK | GMMX | Marrakesh Menara Airport | Marrakesh, Morocco | | |
| RAL | KRAL | Riverside Municipal Airport | Riverside, California, United States | | |
| RAM | YRNG | Ramingining Airport[1] | Ramingining, Northern Territory, Australia | | |
| RAN | LIDR | Ravenna Airport[1] | Ravenna, Emilia-Romagna, Italy | | |
| RAO | SBRP | Leite Lopes Airport | Ribeirão Preto, São Paulo, Brazil | | |
| RAP | KRAP | Rapid City Regional Airport | Rapid City, South Dakota, United States | | |
| RAQ | WAWR | Sugimanuru Airport[1] | Muna Island, Indonesia | | |
| RAR | NCRG | Rarotonga International Airport | Avarua, Rarotonga, Cook Islands | | |
| RAS | OIGG | Rasht Airport[1] | Rasht, Iran | | |
| RAT | USNR | Raduzhny Airport | Raduzhny, Khanty-Mansi Autonomous Okrug, Russia | | |
| RAV | SKCN | Cravo Norte Airport[1] | Cravo Norte, Colombia | | |
| RAW | | Arawa Airport[1] | Arawa, Papua New Guinea | | |
| RAX | AYYO | Oram Airport[1] | Oram, Papua New Guinea | | |
| RAZ | OPRT | Rawalakot Airport[1] | Rawalakot, Pakistan | | |
| -RB- |
| RBA | GMME | Rabat–Salé Airport | Rabat, Morocco | | |
| RBB | SWBR | Borba Airport | Borba, Amazonas, Brazil | | |
| RBC | YROI | Robinvale Airport | Robinvale, Victoria, Australia | | |
| RBD | KRBD | Dallas Executive Airport | Dallas, Texas, United States | UTC−06:00 | Mar-Nov |
| RBE | VDRK | Ratanakiri Airport | Ratanakiri, Cambodia | | |
| RBF | | Big Bear City Airport[1] (FAA: L35) | Big Bear City, California, United States | | |
| RBG | KRBG | Roseburg Regional Airport | Roseburg, Oregon, United States | | |
| RBI | NFFR | Rabi Airport[1] | Rabi Island, Fiji | | |
| RBJ | RJCR | Rebun Airport[1] | Rebun, Rebun Island, Japan | | |
| RBK | | French Valley Airport[1] (FAA: F70) | Murrieta / Temecula, California, United States | | |
| RBL | KRBL | Red Bluff Municipal Airport | Red Bluff, California, United States | | |
| RBM | EDMS | Straubing Wallmühle Airport | Straubing, Bavaria, Germany | | |
| RBO | SLRB | Roboré Airport[1] | Roboré, Bolivia | | |
| RBP | AYRE | Rabaraba Airport[1] | Rabaraba, Papua New Guinea | | |
| RBQ | SLRQ | Rurrenabaque Airport | Rurrenabaque, Bolivia | | |
| RBR | SBRB | Plácido de Castro International Airport | Rio Branco, Acre, Brazil | | |
| RBS | YORB | Orbost Airport[1] | Orbost, Victoria, Australia | | |
| RBT | HKMB | Marsabit Airport[1] | Marsabit, Kenya | | |
| RBU | YROE | Roebourne Airport[1] | Roebourne, Western Australia, Australia | | |
| RBV | AGRM | Ramata Airport[1] | Ramata Island, Solomon Islands | | |
| RBW | KRBW | Lowcountry Regional Airport | Walterboro, South Carolina, United States | | |
| RBX | HSMK | Rumbek Airport[1] | Rumbek, South Sudan | | |
| RBY | PARY | Ruby Airport | Ruby, Alaska, United States | | |
| -RC- |
| RCA | KRCA | Ellsworth Air Force Base | Rapid City, South Dakota, United States | | |
| RCB | FARB | Richards Bay Airport | Richards Bay, South Africa | | |
| RCE | | Roche Harbor Seaplane Base | Roche Harbor, Washington, United States | | |
| RCH | SKRH | Almirante Padilla Airport | Riohacha, Colombia | | |
| RCK | KRCK | H. H. Coffield Regional Airport | Rockdale, Texas, United States | | |
| RCL | NVSR | Redcliffe Airport[1] | Redcliffe, Aoba Island, Vanuatu | | |
| RCM | YRMD | Richmond Airport | Richmond, Queensland, Australia | | |
| RCN | | American River Airport[1] | American River, South Australia, Australia | | |
| RCO | LFDN | Rochefort – Saint-Agnant Airport[1] | Rochefort, Poitou-Charentes, France | | |
| RCQ | SATR | Reconquista Airport | Reconquista, Santa Fe, Argentina | | |
| RCR | KRCR | Fulton County Airport | Rochester, Indiana, United States | | |
| RCS | EGTO | Rochester Airport | Rochester, England, United Kingdom | | |
| RCT | KRCT | Nartron Field | Reed City, Michigan, United States | | |
| RCU | SAOC | Las Higueras Airport | Río Cuarto, Córdoba, Argentina | | |
| RCY | MYRP | Port Nelson Airport[1] | Port Nelson, Rum Cay Island, Bahamas | | |
| -RD- |
| RDA | YRKD | Rockhampton Downs Airport | Rockhampton Downs, Northern Territory, Australia | | |
| RDB | PADG | Red Dog Airport | Red Dog, Alaska, United States | | |
| RDC | SNDC | Redenção Airport[1] | Redenção, Pará, Brazil | | |
| RDD | KRDD | Redding Municipal Airport | Redding, California, United States | | |
| RDE | | Merdey Airport[1] (Jahabra Airport) | Merdey, Indonesia | | |
| RDG | KRDG | Reading Regional Airport (Carl A. Spaatz Field) | Reading, Pennsylvania, United States | | |
| RDM | KRDM | Roberts Field | Redmond / Bend, Oregon, United States | | |
| RDN | WMPR | Redang Airport[1] | Redang Island, Terengganu, Malaysia | | |
| RDO | EPRA | Radom Airport[1] | Radom, Poland | | |
| RDP | VEDG | Kazi Nazrul Islam Airport | Durgapur, West Bengal, India | | |
| RDR | KRDR | Grand Forks Air Force Base | Grand Forks, North Dakota, United States | | |
| RDS | SAHS | Rincón de los Sauces Airport[1] | Rincón de los Sauces, Neuquén, Argentina | | |
| RDT | GOSR | Richard Toll Airport | Richard Toll, Senegal | | |
| RDU | KRDU | Raleigh–Durham International Airport | Raleigh / Durham, North Carolina, United States | | |
| RDV | | Red Devil Airport | Red Devil, Alaska, United States | | |
| RDZ | LFCR | Rodez–Marcillac Airport | Rodez, Midi-Pyrénées, France | | |
| -RE- |
| REA | NTGE | Reao Airport[1] | Reao, Tuamotus, French Polynesia | | |
| REB | EDAX | Rechlin–Lärz Airfield[1] | Rechlin, Mecklenburg-Vorpommern, Germany | | |
| REC | SBRF | Recife/Guararapes–Gilberto Freyre International Airport | Recife, Pernambuco, Brazil | | |
| RED | KRVL | Mifflin County Airport (FAA: RVL) | Reedsville / Lewistown, Pennsylvania, United States | | |
| REE | | Reese Airpark[1] (FAA: 8XS8) | Lubbock, Texas, United States | | |
| REG | LICR | Reggio di Calabria Airport | Reggio di Calabria, Calabria, Italy | | |
| REI | SOOR | Régina Airport[1] | Régina, French Guiana | | |
| REK[1] | | metropolitan area1 | Reykjavík, Iceland | | |
| REL | SAVT | Almirante Marcos A. Zar Airport | Trelew, Chubut, Argentina | | |
| REN | UWOO | Orenburg Tsentralny Airport | Orenburg, Orenburg Oblast, Russia | | |
| REO | KREO | Rome State Airport | Rome, Oregon, United States | | |
| REP | VDSR | Siem Reap International Airport (Angkor Int'l) | Siem Reap, Cambodia | | |
| REQ | | Reko Diq Airport[1] | Reko Diq, Pakistan | | |
| RER | MGRT | Retalhuleu Airport | Retalhuleu, Guatemala | | |
| RES | SARE | Resistencia International Airport | Resistencia, Chaco, Argentina | | |
| RET | ENRS | Røst Airport | Røst, Norway | | |
| REU | LERS | Reus Airport | Reus, Catalonia, Spain | | |
| REW | | Churhata Airport[1] | Rewa, Madhya Pradesh, India | | |
| REX | MMRX | General Lucio Blanco International Airport | Reynosa, Tamaulipas, Mexico | | |
| REY | SLRY | Reyes Airport[1] | Reyes, Bolivia | | |
| REZ | SDRS | Resende Airport[1] | Resende, Rio de Janeiro, Brazil | | |
| -RF- |
| RFA | FEGR | Rafaï Airport[1] | Rafaï, Central African Republic | | |
| RFD | KRFD | Chicago Rockford International Airport (Greater Rockford Airport) | Rockford, Illinois, United States | | |
| RFG | KRFG | Rooke Field | Refugio, Texas, United States | | |
| RFK | | Rollang Field[1] (FAA: 5MS1) | Rolling Fork, Mississippi, United States | | |
| RFN | BIRG | Raufarhöfn Airport[1] | Raufarhöfn, Iceland | | |
| RFP | NTTR | Raiatea Airport[1] (Uturoa Airport) | Raiatea, Society Islands, French Polynesia | | |
| RFR | MRRF | Río Frío Airport[1] | Río Frío, Costa Rica | | |
| RFS | MNRT | Rosita Airport[1] | Rosita, Nicaragua | | |
| -RG- |
| RGA | SAWE | Hermes Quijada International Airport | Río Grande, Tierra del Fuego, Argentina | | |
| RGE | | Porgera Airport[1] | Porgera, Papua New Guinea | | |
| RGH | VEBG | Balurghat Airport[1] | Balurghat, West Bengal, India | | |
| RGI | NTTG | Rangiroa Airport[1] | Rangiroa, Tuamotus, French Polynesia | | |
| RGK | UNBG | Gorno-Altaysk Airport[1] | Gorno-Altaysk, Altai Republic, Russia | | |
| RGL | SAWG | Piloto Civil Norberto Fernández International Airport | Río Gallegos, Santa Cruz, Argentina | | |
| RGN | VYYY | Yangon International Airport | Yangon, Myanmar | | |
| RGO | ZKHM | Chongjin Airport | Chongjin, North Korea | | |
| RGR | | Ranger Municipal Airport[1] (FAA: F23) | Ranger, Texas, United States | | |
| RGS | LEBG | Burgos Airport | Burgos, Castile and León, Spain | | |
| RGT | WIPR | Japura Airport[1] | Rengat, Indonesia | | |
| -RH- |
| RHA | BIRE | Reykhólar Airport[1] | Reykhólar, Iceland | | |
| RHD | SANR[2] | Termas de Río Hondo Airport[1] | Termas de Río Hondo, Santiago del Estero, Argentina | | |
| RHE | LFSR | Reims – Champagne Air Base | Reims, Champagne-Ardenne, France | | |
| RHG | HRYU | Ruhengeri Airport[1] | Ruhengeri, Rwanda | | |
| RHI | KRHI | Rhinelander–Oneida County Airport | Rhinelander, Wisconsin, United States | | |
| RHL | YRYH | Roy Hill Station Airport[1] | Roy Hill Station, Western Australia, Australia | | |
| RHN | FYSA | Skorpion Mine Airport[1] | Rosh Pinah, Namibia | | |
| RHO | LGRP | Rhodes International Airport | Rhodes, Greece | | |
| RHP | VNRC | Ramechhap Airport | Ramechhap, Nepal | | |
| RHR | | Al Hamra Seaplane Base[1] | Ras al-Khaimah, United Arab Emirates | | |
| RHT | | Alxa Right Banner Badanjilin Airport | Alxa Right Banner, Inner Mongolia, China | | |
| RHV | KRHV | Reid–Hillview Airport of Santa Clara County | San Jose, California, United States | | |
| -RI- |
| RIA | SBSM | Santa Maria Airport | Santa Maria, Rio Grande do Sul, Brazil | | |
| RIB | SLRI | Riberalta Airport | Riberalta, Bolivia | | |
| RIC | KRIC | Richmond International Airport | Richmond, Virginia, United States | | |
| RID | KRID | Richmond Municipal Airport | Richmond, Indiana, United States | | |
| RIE | KRPD | Rice Lake Regional Airport (Carl's Field) (FAA: RPD) | Rice Lake, Wisconsin, United States | | |
| RIF | KRIF | Richfield Municipal Airport | Richfield, Utah, United States | | |
| RIG | SBRG | Rio Grande Regional Airport | Rio Grande, Rio Grande do Sul, Brazil | | |
| RIH | MPSM | Scarlett Martinez International Airport | Río Hato, Panama | | |
| RIJ | SPJA | Juan Simons Vela Airport[1] | Rioja, Peru | | |
| RIL | KRIL | Garfield County Regional Airport | Rifle, Colorado, United States | | |
| RIM | SPLN | San Nicolas Airport[1] | Rodríguez de Mendoza, Peru | | |
| RIN | AGRC | Ringgi Cove Airport[1] | Ringgi Cove, Solomon Islands | | |
| RIO[1] | | metropolitan area2 | Rio de Janeiro, Brazil | | |
| RIR | KRIR | Flabob Airport | Riverside, California, United States | | |
| RIS | RJER | Rishiri Airport[1] | Rishiri, Rishiri Island, Japan | | |
| RIV | KRIV | March Air Reserve Base | Riverside, California, United States | | |
| RIW | KRIW | Central Wyoming Regional Airport | Riverton, Wyoming, United States | | |
| RIX | EVRA | Riga International Airport | Riga, Latvia | | |
| RIY | OYRN | Riyan Airport[1] | Mukalla, Yemen | | |
| RIZ | | Rizhao Shanzihe Airport | Rizhao, Shandong, China | | |
| -RJ- |
| RJA | VORY | Rajahmundry Airport | Rajahmundry, Andhra Pradesh, India | | |
| RJB | VNRB | Rajbiraj Airport[1] | Rajbiraj, Nepal | | |
| RJH | VGRJ | Shah Makhdum Airport | Rajshahi, Bangladesh | | |
| RJI | | Rajouri Airport[1] | Rajouri, Jammu and Kashmir, India | | |
| RJK | LDRI | Rijeka Airport | Rijeka, Croatia | | |
| RJL | LELO | Logroño–Agoncillo Airport | Logroño, La Rioja, Spain | | |
| RJM | | Marinda Airport[1] | Waisai, Indonesia | | |
| RJN | OIKR | Rafsanjan Airport[1] | Rafsanjan, Iran | | |
| -RK- |
| RKA | NTKK | Aratika-Nord Airport[1] | Aratika, Tuamotus, French Polynesia | | |
| RKD | KRKD | Knox County Regional Airport | Rockland, Maine, United States | | |
| RKE | EKRK | Roskilde Airport | Copenhagen, Denmark | | |
| RKH | KUZA | Rock Hill/York County Airport[1] (FAA: UZA) | Rock Hill, South Carolina, United States | | |
| RKI | WIBR | Rokot Airport | Sipura, Indonesia | | |
| RKP | KRKP | Aransas County Airport | Rockport, Texas, United States | | |
| RKR | KRKR | Robert S. Kerr Airport | Poteau, Oklahoma, United States | | |
| RKS | KRKS | Rock Springs–Sweetwater County Airport | Rock Springs, Wyoming, United States | | |
| RKT | OMRK | Ras Al Khaimah International Airport | Ras al-Khaimah, United Arab Emirates | | |
| RKU | | Kairuku Airport[1] | Yule Island, Papua New Guinea | | |
| RKV | BIRK | Reykjavík Airport | Reykjavík, Iceland | | |
| RKW | KRKW | Rockwood Municipal Airport | Rockwood, Tennessee, United States | | |
| RKY | | Rokeby Airport[1] | Rokeby, Queensland, Australia | | |
| RKZ | ZURK | Shigatse Peace Airport | Shigatse, Tibet Autonomous Region, China | | |
| -RL- |
| RLD | KRLD | Richland Airport | Richland, Washington, United States | | |
| RLG | ETNL | Rostock–Laage Airport | Rostock, Mecklenburg-Vorpommern, Germany | | |
| RLK | ZBYZ | Bayannur Tianjitai Airport[1] | Bayannur, Inner Mongolia, China | | |
| RLO | SAOS | Valle del Conlara Airport[1] | Villa de Merlo, San Luis, Argentina | | |
| RLP | | Rosella Plains Airport[1] | Rosella Plains, Queensland, Australia | | |
| RLR | | Relais de la Reine Airport[1] | Isalo, Madagascar | | |
| RLT | DRZL | Arlit Airport | Arlit, Niger | | |
| -RM- |
| RMA | YROM | Roma Airport | Roma, Queensland, Australia | | |
| RMB | OOBR | Buraimi Airport[1] | Buraimi, Oman | | |
| RMD | VORG | Ramagundam Airport (Basanth Nagar Airport) | Ramagundam, Telangana, India | | |
| RME | KRME | Griffiss International Airport | Rome, New York, United States | | |
| RMF | HEMA | Marsa Alam International Airport | Marsa Alam, Egypt | | |
| RMG | KRMG | Richard B. Russell Airport | Rome, Georgia, United States | | |
| RMI | LIPR | Federico Fellini International Airport | Rimini, Emilia-Romagna, Italy | | |
| RMK | YREN | Renmark Airport | Renmark, South Australia, Australia | | |
| RML | VCCC | Colombo International Airport, Ratmalana | Colombo, Sri Lanka | UTC+05:30 | |
| RMN | | Rumginae Airport | Rumginae, Papua New Guinea | | |
| RMO | LUKK | Chișinău International Airport | Chișinău, Moldova | UTC+02:00 | Mar–Oct |
| RMP | PFMP | Rampart Airport | Rampart, Alaska, United States | | |
| RMQ | RCMQ | Taichung Airport (Taichung Ching Chuan Kang Airport) | Taichung, Taiwan | | |
| RMS | ETAR | Ramstein Air Base | Ramstein, Rhineland-Palatinate, Germany | | |
| RMT | NTAM | Rimatara Airport[1] | Rimatara, Austral Islands, French Polynesia | | |
| RMU | LEMI | Región de Murcia International Airport[1] | Murcia / Cartagena, Murcia, Spain | | |
| RMY | KMPI | Mariposa-Yosemite Airport[1] (FAA: MPI) | Mariposa, California, United States | | |
| -RN- |
| RNA | AGAR | Ulawa Airport | Arona, Ulawa Island, Solomon Islands | | |
| RNB | ESDF | Ronneby Airport | Ronneby / Karlskrona, Sweden | | |
| RNC | KRNC | Warren County Memorial Airport | McMinnville, Tennessee, United States | | |
| RND | KRND | Randolph Air Force Base | San Antonio, Texas, United States | | |
| RNE | LFLO | Roanne Renaison Airport | Roanne, Rhône-Alpes, France | | |
| RNG | | Rangely Airport[1] (FAA: 4V0) | Rangely, Colorado, United States | | |
| RNH | KRNH | New Richmond Regional Airport | New Richmond, Wisconsin, United States | | |
| RNI | MNCI | Corn Island Airport | Corn Islands, Nicaragua | | |
| RNJ | RORY | Yoron Airport[1] | Yoronjima, Amami Islands, Japan | | |
| RNL | AGGR | Rennell/Tingoa Airport[1] | Rennell Island, Solomon Islands | | |
| RNM | OOGB | Qarn Alam Airport[1] | Qarn Alam, Oman | | |
| RNN | EKRN | Bornholm Airport | Rønne, Denmark | | |
| RNO | KRNO | Reno–Tahoe International Airport | Reno, Nevada, United States | | |
| RNP | | Rongelap Airport | Rongelap Atoll, Marshall Islands | | |
| RNR | | Robinson River Airport[1] | Robinson River, Papua New Guinea | | |
| RNS | LFRN | Rennes–Saint-Jacques Airport | Rennes, Brittany, France | | |
| RNT | KRNT | Renton Municipal Airport | Renton, Washington, United States | | |
| RNU | WBKR | Ranau Airport[1] | Ranau, Sabah, Malaysia | | |
| RNZ | KRZL | Jasper County Airport (FAA: RZL) | Rensselaer, Indiana, United States | | |
| -RO- |
| ROA | KROA | Roanoke–Blacksburg Regional Airport (Woodrum Field) | Roanoke, Virginia, United States | | |
| ROB | GLRB | Roberts International Airport | Monrovia, Liberia | | |
| ROC | KROC | Greater Rochester International Airport | Rochester, New York, United States | | |
| ROD | FARS | Robertson Airfield[1] | Robertson, South Africa | | |
| ROF | | Montague Airport[1] (Yreka Rohrer Field) (FAA: 1O5) | Montague / Yreka, California, United States | | |
| ROG | KROG | Rogers Municipal Airport (Carter Field) | Rogers, Arkansas, United States | | |
| ROH | YROB | Robinhood Airport[1] | Robinhood, Queensland, Australia | | |
| ROI | VTUV | Roi Et Airport | Roi Et, Thailand | | |
| ROK | YBRK | Rockhampton Airport | Rockhampton, Queensland, Australia | | |
| ROL | | Roosevelt Municipal Airport | Roosevelt, Utah, United States | | |
| ROM[1] | | metropolitan area3 | Rome, Lazio, Italy | | |
| RON | SKPA | Juan José Rondón Airport[1] | Paipa, Colombia | | |
| ROO | SWRD | Maestro Marinho Franco Airport | Rondonópolis, Mato Grosso, Brazil | | |
| ROP | PGRO | Rota International Airport (FAA: GRO) | Rota, Northern Mariana Islands | | |
| ROR | PTRO | Roman Tmetuchl International Airport | Koror, Palau | | |
| ROS | SAAR | Rosario – Islas Malvinas International Airport | Rosario, Santa Fe, Argentina | | |
| ROT | NZRO | Rotorua Regional Airport | Rotorua, New Zealand | | |
| ROU | LBRS | Ruse Airport | Ruse, Bulgaria | | |
| ROV | URRP | Platov International Airport | Novocherkassk, Rostov Oblast, Russia | | |
| ROW | KROW | Roswell International Air Center | Roswell, New Mexico, United States | | |
| ROX | KROX | Roseau Municipal Airport (Rudy Billberg Field) | Roseau, Minnesota, United States | | |
| ROY | SAWM | Río Mayo Airport[1] | Río Mayo, Chubut, Argentina | | |
| ROZ | LERT | US Naval Station Rota[1] | Rota, Andalusia, Spain | | |
| -RP- |
| RPA | VNRP | Rolpa Airport[1] | Rolpa, Nepal | | |
| RPB | YRRB | Roper Bar Airport | Roper Bar, Northern Territory, Australia | | |
| RPI | | Rampi Airport | Rampi, Indonesia | | |
| RPM | YNGU | Ngukurr Airport[1] | Ngukurr, Northern Territory, Australia | | |
| RPN | LLIB | Rosh Pina Airport | Rosh Pinna, Israel | | |
| RPR | VARP | Swami Vivekananda Airport | Raipur, Chhattisgarh, India | | |
| RPV | | Roper Valley Airport[1] | Roper Valley, Northern Territory, Australia | | |
| RPX | KRPX | Roundup Airport | Roundup, Montana, United States | | |
| -RQ- |
| RQA | ZWRQ | Ruoqiang Loulan Airport | Ruoqiang, Xinjiang, China | | |
| RQW | | Qayyarah Airfield West[1] | Qayyarah, Iraq | | |
| -RR- |
| RRE | | Marree Airport[1] | Marree, South Australia, Australia | | |
| RRG | FIMR | Sir Gaëtan Duval Airport | Rodrigues Island, Mauritius | | |
| RRI | | Barora Airport[1] | Barora, Solomon Islands | | |
| RRJ | SBJR | Jacarepaguá Airport[1] | Barra da Tijuca, Rio de Janeiro, Brazil | | |
| RRK | VERK | Rourkela Airport | Rourkela, Odisha, India | | |
| RRL | KRRL | Merrill Municipal Airport | Merrill, Wisconsin, United States | | |
| RRM | | Marromeu Airport[1] | Marromeu, Mozambique | | |
| RRR | NTKO | Raroia Airport | Raroia, Tuamotus, French Polynesia | | |
| RRS | ENRO | Røros Airport | Røros, Norway | | |
| RRT | KRRT | Warroad International Memorial Airport (Swede Carlson Field) | Warroad, Minnesota, United States | | |
| RRV | | Robinson River Airport[1] | Robinson River, Northern Territory, Australia | | |
| -RS- |
| RSA | SAZR | Santa Rosa Airport | Santa Rosa, La Pampa, Argentina | | |
| RSB | | Roseberth Airport[1] | Roseberth, Queensland, Australia | | |
| RSD | MYER | Rock Sound International Airport[1] | Rock Sound, Eleuthera Island, Bahamas | | |
| RSE | | Rose Bay Water Airport[1] | Sydney, New South Wales, Australia | | |
| RSH | PARS | Russian Mission Airport | Russian Mission, Alaska, United States | | |
| RSI | | Red Sea International Airport | Red Sea Project, Tabuk Province, Saudi Arabia | | |
| RSJ | | Rosario Seaplane Base (FAA: W49) | Orcas Island, Washington, United States | | |
| RSK | WASC | Abresso Airport[1] | Ransiki, Indonesia | | |
| RSL | KRSL | Russell Municipal Airport | Russell, Kansas, United States | | |
| RSN | KRSN | Ruston Regional Airport | Ruston, Louisiana, United States | | |
| RSS | HSDZ | Damazin Airport[1] | Ad-Damazin, Sudan | | |
| RST | KRST | Rochester International Airport | Rochester, Minnesota, United States | | |
| RSU | RKJY | Yeosu/Suncheon Airport[1] | Yeosu / Suncheon, South Korea | | |
| RSW | KRSW | Southwest Florida International Airport | Fort Myers, Florida, United States | | |
| RSX | | Rouses Point Seaplane Base[1] (FAA: K21) | Rouses Point, New York, United States | | |
| -RT- |
| RTA | NFNR | Rotuma Airport[1] | Rotuma Island, Fiji | | |
| RTB | MHRO | Juan Manuel Gálvez International Airport | Roatán, Honduras | | |
| RTC | VARG | Ratnagiri Airport | Ratnagiri, Maharashtra, India | | |
| RTG | WATG | Frans Sales Lega Airport[1] | Ruteng, Indonesia | | |
| RTI | | David Constantijn Saudale Airport[1] | Rote Island (Roti), Indonesia | | |
| RTL | | Spirit Lake Municipal Airport[1] (FAA: 0F3) | Spirit Lake, Iowa, United States | | |
| RTM | EHRD | Rotterdam The Hague Airport | Rotterdam, Netherlands | | |
| RTN | KRTN | Raton Municipal Airport (Crews Field) | Raton, New Mexico, United States | | |
| RTP | YRTP | Rutland Plains Airport[1] | Rutland Plains, Queensland, Australia | | |
| RTS | YRTI | Rottnest Island Airport | Rottnest Island, Western Australia, Australia | | |
| RTW | UWSS | Saratov Tsentralny Airport | Saratov, Saratov Oblast, Russia | | |
| RTY | YMYT | Merty Merty Airport[1] | Merty Merty, South Australia, Australia | | |
| -RU- |
| RUA | HUAR | Arua Airport | Arua, Uganda | | |
| RUD | OIMJ | Shahroud Airport[1] | Shahrud, Iran | | |
| RUE | | Butembo Airport[1] | Butembo, Democratic Republic of the Congo | | |
| RUF | WAJE | Yuruf Airport[1] | Yuruf, Indonesia | | |
| RUG | ZSRG | Rugao Air Base | Rugao, Jiangsu, China | | |
| RUH | OERK | King Khalid International Airport | Riyadh, Saudi Arabia | | |
| RUI | KSRR | Sierra Blanca Regional Airport[1] (FAA: SRR) | Ruidoso, New Mexico, United States | | |
| RUK | VNRK | Chaurjahari Airport | Rukumkot, Nepal | | |
| RUL | VRQM | Maavarulu Airport[1] | Gaafu Dhaalu Atoll, Maldives | | |
| RUM | VNRT | Rumjatar Airport | Rumjatar, Nepal | | |
| RUN | FMEE | Roland Garros Airport | St-Denis, Réunion, France | | |
| RUP | VERU | Rupsi Airport | Rupsi, Assam, India | | |
| RUR | NTAR | Rurutu Airport | Rurutu, French Polynesia | | |
| RUS | AGGU | Marau Airport | Marau, Solomon Islands | | |
| RUT | KRUT | Rutland – Southern Vermont Regional Airport | Rutland, Vermont, United States | | |
| RUU | | Ruti Airport[1] | Kawbenaberi, Papua New Guinea | | |
| RUV | MGRB | Rubelsanto Airport[1] | Rubelsanto, Guatemala | | |
| RUY | MHRU | Copán Ruinas Airport[1] | Copán Ruinas, Honduras | | |
| -RV- |
| RVA | FMSG | Farafangana Airport[1] | Farafangana, Madagascar | | |
| RVC | | River Cess Airport[1] | River Cess, Liberia | | |
| RVD | SWLC | General Leite de Castro Airport[1] | Rio Verde, Goiás, Brazil | | |
| RVE | SKSA | Los Colonizadores Airport | Saravena, Colombia | | |
| RVH | ULSS | Rzhevka Airport | Saint Petersburg, Russia | | |
| RVI | URRR | Rostov-on-Don Airport | Rostov-on-Don, Rostov Oblast, Russia | | |
| RVK | ENRM | Rørvik Airport, Ryum | Rørvik, Norway | | |
| RVN | EFRO | Rovaniemi Airport | Rovaniemi, Finland | | |
| RVO | FARI | Reivilo Airport[1] | Reivilo, South Africa | | |
| RVR | | Green River Municipal Airport[1] (FAA: U34) | Green River, Utah, United States | | |
| RVS | KRVS | Richard Lloyd Jones Jr. Airport | Tulsa, Oklahoma, United States | | |
| RVT | YNRV | Ravensthorpe Airport[1] | Ravensthorpe, Western Australia, Australia | | |
| RVV | NTAV | Raivavae Airport | Raivavae, Austral Islands, French Polynesia | | |
| RVY | SURV | Pres. Gral. Óscar D. Gestido International Airport | Rivera, Uruguay | | |
| -RW- |
| RWF | KRWF | Redwood Falls Municipal Airport | Redwood Falls, Minnesota, United States | | |
| RWI | KRWI | Rocky Mount–Wilson Regional Airport | Rocky Mount, North Carolina, United States | | |
| RWL | KRWL | Rawlins Municipal Airport (Harvey Field) | Rawlins, Wyoming, United States | | |
| RWN | UKLR | Rivne International Airport | Rivne, Ukraine | | |
| -RX- |
| RXA | | Ar Rawdah Airport[1] | Ar Rawdah (Raudha), Yemen | | |
| RXE | KRXE | Rexburg–Madison County Airport | Rexburg, Idaho, United States | | |
| RXS | RPVR | Roxas Airport | Roxas, Philippines | | |
| -RY- |
| RYB | UUBK | Staroselye Airport | Rybinsk, Yaroslavl Oblast, Russia | | |
| RYG | ENRY | Moss Airport, Rygge / Rygge Air Station | Oslo / Moss, Norway | | |
| RYK | OPRK | Shaikh Zayed International Airport[1] | Rahim Yar Khan, Pakistan | | |
| RYL | | Royal Airstrip[1] | Lower Zambezi National Park, Zambia | | |
| RYN | LFCY | Royan – Médis Aerodrome | Royan, Poitou-Charentes, France | | |
| RYO | SAWT | Rio Turbio Airport[1] | Río Turbio, Santa Cruz, Argentina | | |
| -RZ- |
| RZA | SAWU | Santa Cruz Airport[1] | Puerto Santa Cruz, Santa Cruz, Argentina | | |
| RZE | EPRZ | Rzeszów–Jasionka Airport | Rzeszów, Poland | | |
| RZN | UUWR | Turlatovo Airport | Ryazan, Ryazan Oblast, Russia | | |
| RZP | RPSD | Cesar Lim Rodriguez Airport | Taytay, Philippines | | |
| RZR | OINR | Ramsar International Airport[1] | Ramsar, Iran | | |
| RZS | OPSW | Sawan Airport[1] | Sawan, Pakistan | | |
| RZV | LTFO | Rize–Artvin Airport | Rize Province, Turkey | | |
| RZZ | KRZZ | Halifax County Airport | Roanoke Rapids, North Carolina, United States | | |
