Metropolitan areas might be served by multiple airports. The IATA assigned easily readable airport codes to those regions which include multiple airports. The New York City area for example is served by '''John F Kennedy''' {{IATA|JFK}}, '''Newark Liberty International''' {{IATA|EWR}} and '''La Guardia''' {{IATA|LGA}}. These airports are aggregated into the NYC airport code.
Booking travel
Some booking websites allow users to search airports in the vicinity of the given airports. Those that do not may be tricked into extending the search by using the larger area airport codes as listed below.
If you book international flights that connect through a major hub you should decide if an airport change is feasible, i.e.
flying into the Buenos Aires Ezeiza International airport {{IATA|EZE}} and connect to a domestic flight from the local Aeroparque Jorge Newbery {{IATA|AEP}}.
Smaller domestic airports are more likely to be served by low cost airlines but that might also force you to re-check
your luggage. Ask you airline if they allow interlining tickets - checking your luggage through to the final destination on multiple tickets.
List of airport area codes
Airports are listed by decreasing importance for international travel. Some flight search engines might include not all airports into their queries.
Asia
<!-- Please do not add your favorite airport here. This is a listing of metropolitan area codes, where a special code covers more than one airport. -->
Osaka, Japan {{IATA|OSA}}
* Kansai International {{IATA|KIX}}
* Itami {{IATA|ITM}}
Tokyo, Japan {{IATA|TYO}}
* Tokyo Narita {{IATA|NRT}}
* Tokyo Haneda {{IATA|HND}}
Sapporo, Japan {{IATA|SPK}}
* New Chitose {{IATA|CTS}}
* Okadama {{IATA|OKD}}
Seoul, South Korea {{IATA|SEL}}
* Incheon International {{IATA|ICN}}
* Gimpo International {{IATA|GMP}}
Beijing, China {{IATA|BJS}}
* Beijing Capital International {{IATA|PEK}}
* Nanyuan Airport {{IATA|NAY}}
Europe
<!-- Please do not add your favorite airport here. This is a listing of metropolitan area codes, where a special code covers more than one airport. -->
Berlin, Germany {{IATA|BER}}
* Berlin Tegel {{IATA|TXL}}
* Berlin Schönefeld {{IATA|SXF}}
Bucharest, Romania {{IATA|BUH}}
* Bucharest Otopeni {{IATA|OTP}}
* Bucharest Baneasa {{IATA|BBU}}
London, United Kingdom {{IATA|LON}}
* London Heathrow {{IATA|LHR}}
* London Gatwick {{IATA|LGW}}
* London City {{IATA|LCY}}
* London Stansted {{IATA|STN}}
* London Luton {{IATA|LTN}}
Milan, Italy {{IATA|MIL}}
* Malpensa International {{IATA|MXP}}
* Linate {{IATA|LIN}}
Moscow, Russia {{IATA|MOW}}
* Moscow Sheremetyevo {{IATA|SVO}}
* Moscow Domodedovo {{IATA|DME}}
* Vnukovo {{IATA|VKO}}
Paris, France {{IATA|PAR}}
* Charles de Gaulle (Roissy) {{IATA|CDG}}
* Paris Orly {{IATA|ORY}}
* Le Bourget {{IATA|LBG}}
Rome, Italy {{IATA|ROM}}
* Leonardo da Vinci International (Fiumicino) {{IATA|FCO}}
* Giovan-Battista Pastine International (Ciampino) {{IATA|CIA}}
Stockholm, Sweden {{IATA|STO}}
* Arlanda {{IATA|ARN}}
* Skavsta AB (Nykoping) {{IATA|NYO}}
* Bromma {{IATA|BMA}}
North America
<!-- Please do not add your favorite airport here. This is a listing of metropolitan area codes, where a special code covers more than one airport. -->
Chicago, United States of America- {{IATA|CHI}}
* Chicago O'Hare International {{IATA|ORD}}
* Chicago Midway International {{IATA|MDW}}
Detroit, United States of America- {{IATA|DTT}}
* Detroit Metro Wayne County{{IATA|DTW}}
Dallas, United States of America - {{IATA|QDF}}
* Dallas Love Field {{IATA|DAL}}
* Dallas Fort-Worth International {{IATA|DFW}}
New York City, United States of America {{IATA|NYC}}
* John F Kennedy International {{IATA|JFK}}
* Newark Liberty International {{IATA|EWR}}
* La Guardia Airport {{IATA|LGA}}
Toronto, Canada {{IATA|YTO}}
* Lester B. Pearson International {{IATA|YYZ}}
* Toronto City Center {{IATA|YTZ}}
Washington DC, United States of America {{IATA|WAS}}
* Washington Dulles International Airport {{IATA|IAD}}
* Ronald Reagan Washington National Airport {{IATA|DCA}}
* Baltimore-Washington Thurgood Marshall International Airport {{IATA|BWI}}
South America
<!-- Please do not add your favorite airport here. This is a listing of metropolitan area codes, where a special code covers more than one airport. -->
Buenos Aires, Argentina {{IATA|BUE}}
* Ezeiza International Airport {{IATA|EZE}}
* Aeroparque Jorge Newbery {{IATA|AEP}}
Rio de Janeiro, Brazil {{IATA|RIO}}
* Galeao - Antonio Carlos Jobim International Airport {{IATA|GIG}} (better known as Galeao International Airport)
* Aeroporto Santos Dumont {{IATA|SDU}}
Sao Paulo, Brazil {{IATA|SAO}}
* Aeroporto Internacional Guarulhos {{IATA|GRU}}
* Congonhas International Airport {{IATA|CGH}}