| NAA | Narrabri Airport | Narrabri | AU |
| NAB | Albany Naval Air Station | Albany | US |
| NAC | Naracoorte Airport | Naracoorte | AU |
| NAD | Macanal Airport | Macanal | CO |
| NAE | Natitingou Airport | Natitingou | BJ |
| NAF | Banaina Airport | Banaina | ID |
| NAG | Dr. Ambedkar Int'l Airport | Nagpur | IN |
| NAH | Naha Airport | Tahuna | ID |
| NAI | Annai Airport | Annai | GY |
| NAJ | Nakchivan Airport | Nakchivan | AZ |
| NAK | Nakhon Ratchasima Airport | Nakhon Ratchasima | TH |
| NAL | Nalchik Airport | Nalchik | RU |
| NAM | Namlea Airport | Namlea | ID |
| NAN | Nadi International Airport | Nadi | FJ |
| NAO | Gaoping Airport | Nanchong | CN |
| NAP | Capodichino Airport | Naples | IT |
| NAQ | Qaanaaq Airport | Qaanaaq | GL |
| NAR | Nare Airport | Nare | CO |
| NAS | Nassau International Airport | Nassau | BS |
| NAT | Augusto Severo Airport | Natal | BR |
| NAU | Napuka Airport | Napuka | PF |
| NAV | Kapodokya Airport | Nevsehir | TR |
| NAW | Narathiwat Airport | Narathiwat | TH |
| NAX | Barbers Point Airport | Barbers Point | US |
| NAY | Nanyuan Airport | Beijing | CN |
| NAZ | Star Harbour Airport | Star Harbour | SB |
| NBA | Nambaiyufa Airport | Nambaiyufa | PG |
| NBB | Barrancominas Airport | Barrancominas | CO |
| NBC | Begishevo Airport | Nizhnekamsk | RU |
| NBE | Hammamet Airport | Enfidha | TN |
| NBG | Naval Air Station/Alvin Callendar | New Orleans | US |
| NBH | Nambucca Heads Airport | Nambucca Heads | AU |
| NBL | San Blas Airport | San Blas | PA |
| NBO | Jomo Kenyatta International Airport | Nairobi | KE |
| NBP | Battery Park City/North Cove Sea Plane Base | New York | US |
| NBS | Changbaishan Airport | Baishan | CN |
| NBU | Naval Air Station | Glenview | US |
| NBV | Cana Brava Airport | Cana Brava | BR |
| NBW | Guantanamo Naval Air Station | Guantanamo | CU |
| NBX | Nabire Airport | Nabire | ID |
| NCA | North Caicos Airport | North Caicos | TC |
| NCE | Cote D'Azur Airport | Nice | FR |
| NCG | Nueva Casas Grandes Airport | Nueva Casas Grandes | MX |
| NCH | Nachingwea Airport | Nachingwea | TZ |
| NCI | Necocli Airport | Necocli | CO |
| NCJ | Sunchales Airport | Sunchales | AR |
| NCL | Newcastle International Airport | Newcastle | GB |
| NCN | New Chenega Airport | New Chenega | US |
| NCO | Naval Air Station | Quonset Point | US |
| NCQ | Atlanta Naval Air Station | Marietta | US |
| NCR | San Carlos Airport | San Carlos | NI |
| NCS | Newcastle Airport | Newcastle | ZA |
| NCT | Guanacaste Airport | Nicoya | CR |
| NCU | Nukus Airport | Nukus | UZ |
| NCY | Annecy-Meythet Airport | Annecy | FR |
| NCZ | Maria Reiche Neuman Airport | Nazca | PE |
| NDA | Bandaneira Airport | Banda Island | ID |
| NDB | Nouadhibou Airport | Nouadhibou | MR |
| NDC | Nanded Airport | Nanded | IN |
| NDD | Sumbe Airport | Sumbe | AO |
| NDE | Mandera Airport | Mandera | KE |
| NDF | N'dalatando Airport | N'dalatando | AO |
| NDG | Sanjiazi Airport | Qiqihar | CN |
| NDH | CZ Bus Station | Shunde | CN |
| NDI | Namudi Airport | Namudi | PG |
| NDJ | Hassan Djamous Intl Airport | N'Djamena | TD |
| NDK | Namdrik Island Airport | Namdrik Island | MH |
| NDL | Ndele Airport | Ndele | CF |
| NDM | Masslo Airport | Mendi | ET |
| NDN | Nadunumu Airport | Nadunumu | PG |
| NDO | Railway Station | La Palma Del Condado | ES |
| NDP | Ellyson Naval Air Station | Pensacola | US |
| NDR | El Aroui Airport | Nador | MA |
| NDS | Sandstone Airport | Sandstone | AU |
| NDU | Rundu Airport | Rundu | NA |
| NDV | United States Naval Heliport | Anacostia | US |
| NDY | Sanday Airport | Sanday | GB |
| NEA | Naval Air Station | Glynco | US |
| NEC | Necochea Airport | Necochea | AR |
| NEF | Neftekamsk Airport | Neftekamsk | RU |
| NEG | Negril Airport | Negril | JM |
| NEJ | Nejo Airport | Nejo | ET |
| NEK | Nekemte Airport | Nekemte | ET |
| NEL | Naec Airport | Lakehurst | US |
| NEN | Olf Usn Airport | Whitehouse | US |
| NER | Chulman Airport | Neryungri | RU |
| NES | East 34th Street - Sea Plane Base | New York | US |
| NET | New Bight Airport | New Bight | BS |
| NEU | Sam Neua Airport | Sam Neua | LA |
| NEV | Newcastle Airport | Nevis | KN |
| NEW | Lakefront Airport | New Orleans | US |
| NFB | Detroit Naval Air Field | Mount Clemens | US |
| NFF | CZ Bus Station | Nanhai | CN |
| NFG | Nefteyugansk Airport | Nefteyugansk | RU |
| NFL | Naval Air Station | Fallon | US |
| NFO | Mata'aho Airport | Niuafo'ou | TO |
| NFR | Nafoora Airport | Nafoora | LY |
| NGA | Young Airport | Young | AU |
| NGB | Lishe International Airport | Ningbo | CN |
| NGC | North Rim Airport | Grand Canyon | US |
| NGD | Anegada Airport | Anegada | VG |
| NGE | Ngaoundere Airport | Ngaoundere | CM |
| NGI | Gau Island Airport | Gau Island | FJ |
| NGK | Nogliki Airport | Nogliki | RU |
| NGL | Ngala Airport | Ngala | ZA |
| NGN | Nargana Airport | Nargana | PA |
| NGO | Chubu Centrair International Airport | Nagoya | JP |
| NGP | Naval Air Station | Corpus Christi | US |
| NGQ | Ngari Gunsa/Ali Kunsha Airport | Shi Quan He | CN |
| NGR | Ningerum Airport | Ningerum | PG |
| NGS | Nagasaki Airport | Nagasaki | JP |
| NGU | Naval Air Station Chambers | Norfolk | US |
| NGW | Cabaniss Field | Corpus Christi | US |
| NGX | Manang Airport | Manang | NP |
| NGY | EK Bus Station | Nagoya | JP |
| NGZ | Naval Air Station | Alameda | US |
| NHA | Nha Trang Airbase | Nha Trang | VN |
| NHD | Minhad Air Base | Dubai | AE |
| NHF | New Halfa Airport | New Halfa | SD |
| NHK | Naval Air Station | Patuxent River | US |
| NHS | Nushki Airport | Nushki | PK |
| NHT | RAF Station | Northolt | GB |
| NHV | Nuku Hiva Airport | Nuku Hiva | PF |
| NHX | Barin Olf Osn Airport | Foley | US |
| NHZ | Naval Air Station | Brunswick | US |
| NIA | Nimba Airport | Nimba | LR |
| NIB | Nikolai Airport | Nikolai | US |
| NIC | Nicosia Airport | Nicosia | CY |
| NIE | Niblack Airport | Niblack | US |
| NIF | Nifty Airport | Nifty | AU |
| NIG | Nikunau Airport | Nikunau | KI |
| NIK | Niokolo-Koba Airport | Niokolo-Koba | SN |
| NIM | Diori Hamani Intl Airport | Niamey | NE |
| NIN | Ninilchik Airport | Ninilchik | US |
| NIO | Nioki Airport | Nioki | CD |
| NIP | Jacksonville Naval Air Station | Jacksonville | US |
| NIQ | Heliport | Niaqornat | GL |
| NIR | Chase Field Naval Air Station | Beeville | US |
| NIS | Simberi Island Airport | Simberi Island | PG |
| NIT | Niort Airport | Niort | FR |
| NIU | Niau Airport | Niau | PF |
| NIX | Nioro du Sahel Airport | Nioro du Sahel | ML |
| NJA | Naval Air Field | Atsugi | JP |
| NJC | Nizhnevartovsk Airport | Nizhnevartovsk | RU |
| NJF | Al-Ashraf International Airport | Al Najaf | IQ |
| NJK | Naval Air Field | El Centro | US |
| NKA | Nkan Airport | Nkan | GA |
| NKB | Noonkanbah Airport | Noonkanbah | AU |
| NKC | Nouakchott Airport | Nouakchott | MR |
| NKD | Sinak, Irian Jaya Airport | Sinak, Irian Jaya | ID |
| NKG | Lukou International Airport | Nanjing | CN |
| NKI | Naukiti Airport | Naukiti | US |
| NKJ | Nanjing Nan Railway Station | Nanjing | CN |
| NKL | Fuma Airport | Kolo | CD |
| NKM | Nagoya (Komaki) Airport | Nagoya | JP |
| NKN | Nankina Airport | Nankina | PG |
| NKO | Ankokoambo Airport | Ankokoambo | MG |
| NKS | Nkongsamba Airport | Nkongsamba | CM |
| NKT | Sirnak Airport | Sirnak | TR |
| NKU | Nkau Airport | Nkau | LS |
| NKV | Nichen Cove Airport | Nichen Cove | US |
| NKX | Miramar Naval Air Station | San Diego | US |
| NKY | Yokangassi Airport | N'kayi | CG |
| NLA | Ndola Airport | Ndola | ZM |
| NLC | Naval Air Station/Reeves Field | Lemoore | US |
| NLD | Quetzalcoatl International Airport | Nuevo Laredo | MX |
| NLE | Jerry Tyler Memorial Airport | Niles | US |
| NLF | Darnley Island Airport | Darnley Island | AU |
| NLG | Nelson Lagoon Airport | Nelson Lagoon | US |
| NLI | Nikolayevsk-na-Amure Airport | Nikolayevsk-na-Amure | RU |
| NLK | Norfolk Island Airport | Norfolk Island | NF |
| NLL | Nullagine Airport | Nullagine | AU |
| NLN | Kneeland Airport | Kneeland | US |
| NLO | N'dolo Airport | Kinshasa | CD |
| NLP | Nelspruit Airport | Nelspruit | ZA |
| NLS | Nicholson Airport | Nicholson | AU |
| NLT | Nalati Airport | Xinyuan | CN |
| NLU | Santa Lucia Airport | Mexico City | MX |
| NLV | Mykolaiv International Airport | Mykolaiv | UA |
| NMA | Namangan Airport | Namangan | UZ |
| NMB | Daman Airport | Daman | IN |
| NMC | Norman's Cay Airport | Norman's Cay | BS |
| NME | Nightmute Airport | Nightmute | US |
| NMG | San Miguel Airport | San Miguel | PA |
| NML | Mildred Lake Airport | Fort McMurray | CA |
| NMN | Nomane Airport | Nomane | PG |
| NMP | New Moon Airport | New Moon | AU |
| NMR | Nappa Merrie Airport | Nappa Merrie | AU |
| NMS | Nansang Airport | Nansang | MM |
| NMT | Namtu Airport | Namtu | MM |
| NNA | Royal Air Force Base | Kenitra | MA |
| NNB | Santa Ana Island Airport | Santa Ana Island | SB |
| NND | Nangade Airport | Nangade | MZ |
| NNG | Wuxu International Airport | Nanning | CN |
| NNI | Namutoni Airport | Namutoni | NA |
| NNK | Naknek Airport | Naknek | US |
| NNL | Nondalton Airport | Nondalton | US |
| NNM | Naryan-Mar Airport | Naryan-Mar | RU |
| NNR | Connemara Airport | Spiddal | IE |
| NNT | Nan Airport | Nan | TH |
| NNU | Nanuque Airport | Nanuque | BR |
| NNX | Nunukan Airport | Nunukan | ID |
| NNY | Jiangying Airport | Nanyang | CN |
| NOA | Nowra Airport | Nowra | AU |
| NOB | Nosara Beach Airport | Nosara Beach | CR |
| NOC | Ireland West Airport | Knock | IE |
| NOD | Norddeich | Norden | DE |
| NOG | Nogales Airport | Nogales | MX |
| NOH | Naval Air Station | Chicago | US |
| NOI | Krymska Airport | Novorossiysk | RU |
| NOJ | Noyabrsk Airport | Noyabrsk | RU |
| NOK | Nova Xavantina Airport | Nova Xavantina | BR |
| NOL | Nakolik River Airport | Nakolik River | US |
| NOM | Nomad River Airport | Nomad River | PG |
| NON | Nonouti Airport | Nonouti | KI |
| NOO | Naoro Airport | Naoro | PG |
| NOP | Sinop Airport | Sinop | TR |
| NOR | Nordfjordur Airport | Nordfjordur | IS |
| NOS | Fascene Airport | Nosy-Be | MG |
| NOT | Novato Airport | Novato | US |
| NOU | La Tontouta Airport | Noumea | NC |
| NOV | Albano Machado Airport | Huambo | AO |
| NOZ | Spichenkovo Airport | Novokuznetsk | RU |
| NPA | Pensacola Naval Air Station | Pensacola | US |
| NPE | Hawkes Bay Airport | Napier/Hastings | NZ |
| NPG | Nipa Airport | Nipa | PG |
| NPH | Nephi Airport | Nephi | US |
| NPL | New Plymouth Airport | New Plymouth | NZ |
| NPO | Nangapinoh Airport | Nangapinoh | ID |
| NPP | Napperby Airport | Napperby | AU |
| NPR | Municipal Airport | Novo Progresso | BR |
| NPT | State Airport | Newport | US |
| NPU | San Pedro Uraba Airport | San Pedro Uraba | CO |
| NQA | Naval Air Station | Memphis | US |
| NQI | Naval Air Station | Kingsville | US |
| NQL | Niquelandia Airport | Niquelandia | BR |
| NQN | Neuquen Airport | Neuquen | AR |
| NQT | Nottingham Airport | Nottingham | GB |
| NQU | Nuqui Airport | Nuqui | CO |
| NQX | Naval Air Station | Key West | US |
| NQY | Cornwall Airport | Newquay | GB |
| NRA | Narrandera Airport | Narrandera | AU |
| NRB | Mayport Naval Station | Mayport | US |
| NRC | Aux Field | Crows Landing | US |
| NRD | Norderney Airport | Norderney | DE |
| NRE | Namrole Airport | Namrole | ID |
| NRG | Narrogin Airport | Narrogin | AU |
| NRI | Shangri-la Airport | Shangri-la | US |
| NRK | Kungsangen Airport | Norrkoping | SE |
| NRL | North Ronaldsay Airport | North Ronaldsay | GB |
| NRM | Keibane Airport | Nara | ML |
| NRN | Weeze Airport | Duesseldorf | DE |
| NRR | Roosevelt Naval Air Station | Roosevelt Roads | PR |
| NRS | Naval Air Station | Imperial Beach | US |
| NRT | Narita International | Tokyo | JP |
| NRY | Newry Airport | Newry | AU |
| NSB | North Sea Plane Base | Bimini | BS |
| NSE | Whiting Field Naval Air Station | Milton | US |
| NSF | Andrews Navy Air Field | Camp Springs | US |
| NSH | Now Shahr Airport | Now Shahr | IR |
| NSI | Nsimalen Airport | Yaounde | CM |
| NSK | Alykel Airport | Norilsk | RU |
| NSL | Municipal Airport | Slayton | US |
| NSM | Norseman Airport | Norseman | AU |
| NSN | Nelson Airport | Nelson | NZ |
| NSO | Scone Airport | Scone | AU |
| NSQ | Heliport | Nuussuaq | GL |
| NST | Nakhon Si Thammarat Airport | Nakhon Si Thammarat | TH |
| NSV | Noosa Airport | Noosaville | AU |
| NSX | North Sound Virgin Gorda Hovercraft/Launch Point | North Sound Virgin Gorda | VG |
| NSY | Sigonella Naval Air Field | Sigonella | IT |
| NSZ | Ferry Port | Nan Sha | CN |
| NTA | Natadola Airport | Natadola | FJ |
| NTB | Notodden Airport | Notodden | NO |
| NTC | Santa Carolina Airport | Santa Carolina | MZ |
| NTD | Point Mugu Naval Air Station | Port Hueneme | US |
| NTE | Nantes Atlantique Airport | Nantes | FR |
| NTG | Xingdong Airport | Nantong | CN |
| NTI | Stenkol Airport | Bintuni | ID |
| NTJ | Manti-Ephraim Airport | Manti | US |
| NTL | Williamtown Airport | Newcastle | AU |
| NTM | Miracena Do Norte Airport | Miracena Do Norte | BR |
| NTN | Normanton Airport | Normanton | AU |
| NTO | Agostinho Neto Airport | Santo Antao Island | CV |
| NTQ | Noto Airport | Wajima | JP |
| NTR | Aeropuerto Del Norte | Monterrey | MX |
| NTT | Kuini Lavenia Airport | Niuatoputapu | TO |
| NTU | Naval Air Station | Oceana | US |
| NTX | Ranai Airport | Natuna | ID |
| NTY | Pilanesberg Int'l Airport | Sun City | ZA |
| NUA | Gregory Lake SPB | Nuwara Eliya | LK |
| NUB | Numbulwar Airport | Numbulwar | AU |
| NUD | En Nahud Airport | En Nahud | SD |
| NUE | Nuremberg Airport | Nuremberg | DE |
| NUF | Castlereigh Reservoir SPB | Hatton | LK |
| NUG | Nuguria Islands Airport | Nuguria Islands | PG |
| NUH | Nunchia Airport | Nunchia | CO |
| NUI | Nuiqsut Airport | Nuiqsut | US |
| NUJ | Nogeh Airport | Nogeh | IR |
| NUK | Nukutavake Airport | Nukutavake, Tuamoto Island | PF |
| NUL | Nulato Airport | Nulato | US |
| NUN | Saufley Naval Air Station | Pensacola | US |
| NUP | Nunapitchuk Airport | Nunapitchuk | US |
| NUQ | Moffett Field | Mountain View | US |
| NUR | Nullarbor Motel Airport | Nullarbor | AU |
| NUS | Norsup Airport | Norsup | VU |
| NUT | Nutuve Airport | Nutuve | PG |
| NUU | Nakuru Airport | Nakuru | KE |
| NUW | Ault Field | Whidbey Island | US |
| NUX | Novyj Urengoj Airport | Novyj Urengoj | RU |
| NVA | La Marguita Airport | Neiva | CO |
| NVD | Nevada Airport | Nevada | US |
| NVG | Nueva Guinea Airport | Nueva Guinea | NI |
| NVI | Navoi International Airport | Navoi | UZ |
| NVK | Framnes Airport | Narvik | NO |
| NVN | Nervino Airport | Beckwourth | US |
| NVP | Novo Aripuana Airport | Novo Aripuana | BR |
| NVR | Novgorod Airport | Novgorod | RU |
| NVS | Nevers Airport | Nevers | FR |
| NVT | Navegantes Airport | Navegantes | BR |
| NVY | Neyveli Airport | Neyveli | IN |
| NWA | Bandar es Salam Airport | Moheli | KM |
| NWH | Parlin Field Airport | Newport | US |
| NWI | Norwich International Airport | Norwich | GB |
| NWS | Pier 11-Wall St Sea Plane Base | New York | US |
| NWT | Nowata Airport | Nowata | PG |
| NWU | Naval Air Station | Bermuda | BM |
| NXX | Willow Grove Naval Air Station | Willow Grove | US |
| NYA | Nyagan Airport | Nyagan | RU |
| NYC | Metropolitan Area | New York | US |
| NYE | Nyeri Airport | Nyeri | KE |
| NYG | Quantico Naval Air Station | Quantico | US |
| NYI | Sunyani Airport | Sunyani | GH |
| NYK | Nanyuki Airport | Nanyuki | KE |
| NYM | Nadym Airport | Nadym | RU |
| NYN | Nyngan Airport | Nyngan | AU |
| NYO | Skavsta Airport | Stockholm | SE |
| NYR | Nyurba Airport | Nyurba | RU |
| NYT | Nay Pyi Taw Int'l Airport | Nay Pyi Taw | MM |
| NYU | Bagan/Nyaung-u Airport | Bagan/Nyaung-u | MM |
| NZA | Nzagi Airport | Nzagi | AO |
| NZE | Nzerekore Airport | Nzerekore | GN |
| NZH | Xijiao Airport | Manzhouli | CN |
| NZO | Nzoia Airport | Nzoia | KE |
| NZW | South Weymouth Airport | South Weymouth | US |
| NZY | North Island Naval Air Station | San Diego | US |