What are airport codes in America used for?

Airport codes in America are short identifiers used in ticketing, baggage tags, flight status tools, airport signs, airline systems and aviation operations. Travelers usually use three-letter IATA codes such as JFK, LAX, ATL and MIA.

Are airport codes in the US the same as IATA codes?

Many major U.S. airports use the same three-letter code across passenger systems and FAA-style public usage, such as ATL, LAX and DEN. Some aviation systems also use four-letter ICAO codes, usually with a K prefix in the continental United States, such as KJFK and KLAX.

What is the difference between airport codes and American Airlines codes?

Airport codes identify airports, while airline codes identify airlines. For example, JFK is an airport code, while AA is the airline designator commonly associated with American Airlines.

What are the most important airport codes in the USA?

Common major U.S. airport codes include ATL for Atlanta, LAX for Los Angeles, ORD for Chicago O'Hare, DFW for Dallas Fort Worth, DEN for Denver, JFK for New York, SFO for San Francisco, SEA for Seattle, MIA for Miami and LAS for Las Vegas.

Do South America and Central America use IATA airport codes?

Yes. Airports in Central America and South America use three-letter IATA codes for passenger travel, such as PTY for Panama City, SJO for San José, LIM for Lima, BOG for Bogotá, GRU for São Paulo and EZE for Buenos Aires.

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USA · North America · Central America · South America

Airport Codes in America: IATA, FAA, ICAO and Major Travel Codes

Use this guide when you need airport codes in America for booking, baggage, flight status, state-by-state planning, airline confusion, or North/Central/South America trip research. It explains the codes travelers actually type into airline sites and where aviation codes differ.

Quick answer: Most travelers need the three-letter IATA airport code, such as JFK, LAX, ATL, ORD, DFW, DEN, MIA, YYZ, MEX, PTY, BOG, LIM, GRU or EZE. In the U.S., FAA identifiers and IATA codes often match for big airports, while ICAO codes usually add a country/region prefix such as KJFK or KLAX.

Find a code Major U.S. codes Regional codes

Independent airport-code guide: Airport-Guides.org is not IATA, FAA, ICAO, TSA, CBP, DOT, an airport authority, or an airline. Use this page for traveler planning, then verify any live flight, gate, terminal, baggage, route or booking detail with the airline or airport.

Start here

What “airport codes in America” usually means

For travelers, “airport codes in America” usually means three-letter IATA airport codes. These are the codes shown on booking sites, boarding passes, baggage tags, flight-status boards and many airport signs.

In aviation operations, you may also see FAA identifiers and ICAO location indicators. For a normal U.S. passenger booking, you usually type ATL, not KATL; JFK, not KJFK.

Airport Travel Command Center

Airport live checks & travel tools

Use current local conditions, official live-status links and planning calculators before you travel. Airline gate, terminal and flight times can change; your carrier remains the final source for flight-specific details.

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Live flight center

Check the airport's official flight board, then confirm any last-minute gate or timing change with the airline.

Official flight search Airline directory

“Live” here means a current source is being opened or fetched. This block does not invent gates, delays or flight status when a verified feed is unavailable.

Current airport-area weather

Useful for planning your trip to the airport. This is model-based local weather, not an aviation METAR or an airline operational forecast.

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Quick official checks

Open the source that matches the decision you are making right now.

Terminal map Parking status Security / TSA FAA airport status Aviation weather Official airport site

When should I reach the airport?

A planning estimate based on flight type and common time buffers. Always increase the buffer for severe weather, major holidays, unusual airport alerts or airline instructions.

Flight departure

Flight type

Drive / transit time to airport (minutes)

Extra parking / rental-car transfer (minutes)

Checking a bag (+20 min) Family, mobility or extra-assistance buffer (+25 min) Holiday / peak travel buffer (+30 min)

Enter your departure time to build a plan.

Connection-risk checker

This is a planning heuristic, not an airline minimum-connection-time rule. International arrivals that require U.S. entry processing, baggage claim and security can need substantially more time.

Connection time (minutes)

Arrival type

Terminal change Separate tickets / separate reservation Need to reclaim / recheck baggage Mobility / family assistance may add transfer time

Adjust the options to estimate how much buffer you have.

Parking cost estimator

Uses the airport-specific rates stored in this article's configuration. Rates can change; verify availability and final pricing on the official parking page before driving in.

Parking option

Number of 24-hour periods

Choose a lot and number of days.

Check live parking / official rates

Passenger pickup readiness

Landing time is not curb-ready time. Add time for taxiing, deplaning, baggage claim, customs when applicable and walking to the correct pickup zone.

Scheduled / estimated landing

Arrival type

Checked baggage Mobility / family assistance

Enter the landing time to estimate when the passenger may actually reach pickup.

Traveler codeIATA

Three letters used for booking, baggage and public flight searches.

U.S. identifierFAA

Used in U.S. airport and aviation databases; often matches major IATA codes.

Aviation codeICAO

Four-letter code used in air traffic, charts and weather systems.

Airline codeAA

Airline designator, not an airport code. Example: American Airlines.

Metro codeNYC

Some city codes group multiple airports, such as NYC for New York-area searches.

Traveler takeaway: If you are booking a flight, use the airport’s three-letter code. If you are reading aviation weather, runway charts or flight-plan data, expect a four-letter ICAO code.

Interactive helper

America airport code finder

This static helper covers common airport-code searches in the USA, North America, Central America and South America. It is not a live IATA database.

Find a common airport code

Select a city or airport and copy the traveler code.

City / airport

Choose an airport, then show the code.

Which code type do I need?

Use this when a search result shows multiple airport abbreviations.

Your task

Choose your task to get the safest code type.

USA reference

Major airport codes in the U.S.

These are high-volume U.S. airport codes that travelers frequently search. They are not the only U.S. airport codes, but they cover many common domestic and international itineraries.

ATLAtlanta Hartsfield-JacksonGeorgia

DFWDallas Fort WorthTexas

ORDChicago O’HareIllinois

DENDenver InternationalColorado

LAXLos Angeles InternationalCalifornia

JFKNew York John F. KennedyNew York

SFOSan Francisco InternationalCalifornia

SEASeattle-TacomaWashington

MIAMiami InternationalFlorida

LASHarry Reid / Las VegasNevada

CLTCharlotte DouglasNorth Carolina

PHXPhoenix Sky HarborArizona

MCOOrlando InternationalFlorida

EWRNewark LibertyNew Jersey

IAHHouston IntercontinentalTexas

BOSBoston LoganMassachusetts

MSPMinneapolis-St. PaulMinnesota

DTWDetroit MetroMichigan

FLLFort Lauderdale-HollywoodFlorida

PHLPhiladelphia InternationalPennsylvania

LGANew York LaGuardiaNew York

DCAReagan Washington NationalVirginia / Washington, DC area

IADWashington DullesVirginia / Washington, DC area

SLCSalt Lake CityUtah

SANSan Diego InternationalCalifornia

TPATampa InternationalFlorida

PDXPortland InternationalOregon

BNANashville InternationalTennessee

Practical tip: If two airports serve the same metro area, search the exact airport code, not just the city. New York can mean JFK, LGA or EWR. Washington can mean DCA, IAD or BWI. Chicago can mean ORD or MDW.

U.S. by state

Airport codes in the U.S. by state: how to search correctly

A state-by-state airport-code list can become huge because each state may have international airports, regional airports, reliever airports, cargo airports, military fields and general-aviation fields. For travelers, the better approach is to start with the largest passenger airports and then use official FAA or airport sources for smaller fields.

California

Common codes: LAX, SFO, SAN, SJC, OAK, SMF, BUR, ONT, SNA.

Takeaway: Los Angeles-area trips may also use BUR, LGB, ONT or SNA depending on destination.

Texas

Common codes: DFW, DAL, IAH, HOU, AUS, SAT, ELP.

Takeaway: Dallas and Houston each have more than one commercial airport.

Florida

Common codes: MIA, FLL, MCO, TPA, PBI, JAX, RSW, SRQ.

Takeaway: South Florida searches often compare MIA, FLL and PBI.

New York

Common codes: JFK, LGA, BUF, ROC, SYR, ALB, ISP.

Takeaway: EWR serves the New York metro but is located in New Jersey.

Illinois

Common codes: ORD, MDW, RFD, PIA, BMI, MLI.

Takeaway: Chicago O’Hare and Midway have different airlines, routes and ground transport.

Washington

Common codes: SEA, GEG, PSC, BLI, PAE.

Takeaway: Seattle-area travelers should compare SEA and PAE for north-side trips.

State-search takeaway: Search “airport code + city” first. Use state lists only after you know which city, metro area, or regional airport you actually need.

North, Central and South America

Airport codes in North America, Central America and South America

“America” can mean the United States in everyday U.S. speech, or the wider Americas in international travel. These examples help separate the most common regional code searches.

North America airport codes

USA: ATL, LAX, ORD, DFW, DEN, JFK, MIA.

Canada: YYZ, YVR, YUL, YYC, YOW.

Mexico: MEX, CUN, GDL, MTY, TIJ.

Central America airport codes

Panama: PTY.

Costa Rica: SJO, LIR.

Guatemala: GUA.

El Salvador: SAL.

Belize: BZE.

South America airport codes

Colombia: BOG, MDE.

Peru: LIM.

Brazil: GRU, GIG, BSB.

Argentina: EZE, AEP.

Chile: SCL.

International booking tip: For big cities with more than one airport, compare the airport code against the airport name before payment. Buenos Aires, São Paulo, New York, Chicago, Houston, Dallas, Washington and Los Angeles-area trips can involve multiple airport choices.

Airline-code confusion

Airport codes vs American Airlines codes

The keyword “airport codes American Airlines” often mixes two different systems. Airport codes identify places. Airline codes identify carriers.

JFK

Airport code

JFK identifies John F. Kennedy International Airport in New York.

Airline designator

AA identifies American Airlines in many passenger-facing airline contexts.

001

Ticket prefix

American Airlines tickets may use a numeric accounting prefix separate from airport codes.

Common mistake: Do not type an airline code where an airport code is requested. “AA” is not an airport. “DFW” is an airport and a major American Airlines hub.

Traveler mistakes

Common airport-code mistakes in America

Using a city code when the city has multiple airports, such as NYC, CHI or WAS.
Typing an ICAO code like KJFK into a normal airline booking box instead of JFK.
Confusing airline codes such as AA, DL, UA or WN with airport codes.
Assuming every U.S. airport has identical IATA, FAA and ICAO codes.
Using a nearby airport without checking ground-transport time and cost.
Booking the wrong airport in South Florida, New York, Washington, Chicago or Los Angeles.
Searching “airport codes in America” when you really need “airport code by city.”
Using old airport names without checking the current airport code.

Step-by-step: how to confirm the right airport code

Start with the city and exact airport name.
Example: “Washington Dulles” is IAD, while “Reagan Washington National” is DCA.

Match the three-letter passenger code.
Use the three-letter code on tickets, baggage tags and flight-status searches.

Check nearby airports before payment.
A cheaper fare can cost more after ground transport, parking, time or hotel changes.

Use official code lookup for uncertain cases.
For unusual regional airports, use IATA, FAA or the airport’s official site.

Official resources

Best official sources for airport codes in America

IATA code search Official source for IATA airport and airline code lookup. FAA Airports U.S. airport resources, location identifiers, diagrams and airport data portals. FAA Location ID Database Official FAA query tool for U.S. location identifiers. BTS Top 50 U.S. Airports U.S. DOT passenger-enplanement data for major U.S. airports. ACI-NA airport rankings North American passenger and cargo airport traffic rankings. ICAO International aviation body associated with four-letter location indicators.

Related Airport-Guides.org pages

Related airport-code guides

DIA Airport Code Guide Denver DEN vs DIA abbreviation and Doha confusion explained. Vegas Airport Code Guide LAS, KLAS, Strip transport, parking and terminal planning. Abu Dhabi Airport Code Guide AUH, OMAA, Terminal A, transfers and US pre-clearance. ORD Airport Code Guide Chicago O’Hare code, terminal decisions and connection help.

FAQs

Airport codes in America FAQs

What are airport codes in America?

Airport codes in America are short identifiers used for airports in the United States, Canada, Mexico, Central America and South America. Travelers most often use three-letter IATA codes such as LAX, JFK, ATL, MIA, YYZ, MEX, PTY, BOG, LIM and GRU.

What are the major airport codes in the U.S.?

Major U.S. airport codes include ATL, DFW, ORD, DEN, LAX, JFK, SFO, SEA, MIA, LAS, CLT, PHX, MCO, EWR, IAH, BOS, MSP, DTW, FLL and PHL.

Where can I check official IATA codes in America?

Use IATA’s official Airline and Airport Code Search for traveler-facing airport and airline code lookup. For U.S. aviation identifiers, use FAA airport and location identifier resources.

Are airport codes in North America different from airport codes in South America?

The traveler format is the same: three-letter IATA codes. The ICAO regional prefixes differ. U.S. ICAO codes commonly start with K, Canada with C, Mexico with M, and many South American countries use other regional prefixes.

What is the difference between airport codes and airline codes?

Airport codes identify places, such as LAX for Los Angeles or MIA for Miami. Airline codes identify carriers, such as AA for American Airlines or DL for Delta Air Lines.

How do I find airport codes in the U.S. by state?

Start with the city or metro area, then confirm the airport name and three-letter code. For smaller airports or aviation data, use FAA location identifier resources because state lists can include many non-passenger fields.

What code should I use for flight departures?

Use the three-letter passenger airport code. For example, use LAX departures for Los Angeles, ATL departures for Atlanta, DEN departures for Denver and MIA departures for Miami.

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