United States Airport Codes: IATA, FAA & ICAO Guide

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Airport Guides Independent United States airport-code reference
Fact-checked September 25, 2026
United States · IATA · FAA · ICAO

United States airport codes: find the right IATA code before you book

Use this traveler-focused United States airport codes list to find major U.S. IATA codes, understand FAA and ICAO identifiers, compare multi-airport cities, search common codes by state and avoid booking or pickup mistakes caused by similar airport names.

Quick answer: most airline passengers need a three-letter IATA code such as ATL, LAX, JFK, ORD, DFW or MIA. The United States does not have one national airport code—each airport or eligible location has its own identifier.
Scope: this is an independent traveler reference, not an IATA, FAA, ICAO, DOT, airport-authority or airline database. The searchable list prioritizes major and commonly searched passenger airports. For official master data, historical analysis or every U.S. aviation facility, use the responsible official database linked below.
Fact checked September 25, 2026
Traveler default IATA three-letter code
FAA NPIAS 3,287 airports
List scope Major passenger airports
Answer first

What are United States airport codes?

United States airport codes are short identifiers used to distinguish airports and aviation locations. For ordinary airline travel, the code you usually need is the three-letter IATA location code shown in flight searches, itineraries, boarding passes and checked-baggage tags.

Examples include ATL for Hartsfield-Jackson Atlanta International Airport, LAX for Los Angeles International Airport, JFK for John F. Kennedy International Airport, ORD for Chicago O’Hare International Airport and DFW for Dallas Fort Worth International Airport.

A code does not always match the present airport name. ORD reflects O’Hare’s Orchard Field history, MCO comes from Orlando’s McCoy Air Force Base heritage, MSY traces to Moisant Stock Yards, and BNA preserves Nashville’s Berry Field history.

Booking IATA
U.S. records FAA
Flight operations ICAO
Statistics DOT / BTS IDs
Traveler shortcut: if you are buying an airline ticket, checking a baggage tag, arranging pickup or booking an airport hotel shuttle, start with the three-letter IATA code shown on the airline itinerary.
Avoid code-system confusion

IATA vs FAA vs ICAO airport codes

IATA

Passenger travel

IATA assigns three-letter location identifiers used throughout commercial passenger and cargo systems, including reservations, ticketing and baggage handling.

Example: LAX.

FAA

U.S. facility records

FAA location identifiers are used in U.S. aviation records and databases. Major airports often share the same three letters as their IATA code, but the systems are not identical.

Example: LAX.

ICAO

Aviation operations

ICAO location indicators are four letters and appear in flight planning, air traffic, aviation weather and technical operational systems.

Example: KLAX.

BTS

Transportation data

DOT/BTS datasets can use airport IDs and sequence IDs in addition to familiar airport codes. Stable numeric identifiers are safer for historical analysis when codes or airport names change.

ICAO prefix warning: do not assume every U.S. airport simply adds “K” to the IATA code. That pattern is common in the contiguous United States, but Alaska, Hawaii, Puerto Rico, the U.S. Virgin Islands and other U.S. jurisdictions use different ICAO prefix systems.
Task Code system Example Best source
Book a passenger flight IATA JFK Airline / IATA
Check baggage destination IATA SEA Airline
Look up a U.S. aviation facility FAA DEN FAA Location ID Database
Read aviation weather / flight plan ICAO KDEN FAA / ICAO aviation data
Analyze historical flight data DOT / BTS IDs Dataset-specific BTS data dictionary
Searchable traveler reference

Major United States airport codes A to Z

Major passenger airports

This table focuses on major and commonly searched U.S. passenger airports. It is not the complete FAA registry of public-use airports, private fields, heliports, seaplane bases, military facilities or other aviation locations.

Showing the traveler-focused major airport list.
Code Airport City / area State
ABELehigh Valley International AirportAllentown / BethlehemPennsylvania
ABQAlbuquerque International SunportAlbuquerqueNew Mexico
ACYAtlantic City International AirportAtlantic CityNew Jersey
ALBAlbany International AirportAlbanyNew York
ANCTed Stevens Anchorage International AirportAnchorageAlaska
ASEAspen/Pitkin County AirportAspenColorado
ATLHartsfield-Jackson Atlanta International AirportAtlantaGeorgia
AUSAustin-Bergstrom International AirportAustinTexas
AVLAsheville Regional AirportAshevilleNorth Carolina
BDLBradley International AirportHartford / Windsor LocksConnecticut
BGRBangor International AirportBangorMaine
BHMBirmingham-Shuttlesworth International AirportBirminghamAlabama
BNANashville International AirportNashvilleTennessee
BOIBoise AirportBoiseIdaho
BOSBoston Logan International AirportBostonMassachusetts
BUFBuffalo Niagara International AirportBuffaloNew York
BURHollywood Burbank AirportBurbank / Los Angeles areaCalifornia
BWIBaltimore/Washington International Thurgood Marshall AirportBaltimore / Washington areaMaryland
BZNBozeman Yellowstone International AirportBozemanMontana
CHSCharleston International AirportCharlestonSouth Carolina
CLECleveland Hopkins International AirportClevelandOhio
CLTCharlotte Douglas International AirportCharlotteNorth Carolina
CMHJohn Glenn Columbus International AirportColumbusOhio
COSColorado Springs AirportColorado SpringsColorado
CRPCorpus Christi International AirportCorpus ChristiTexas
CVGCincinnati/Northern Kentucky International AirportCincinnati region / HebronKentucky
DCARonald Reagan Washington National AirportWashington areaVirginia
DENDenver International AirportDenverColorado
DFWDallas Fort Worth International AirportDallas / Fort WorthTexas
DTWDetroit Metropolitan Wayne County AirportDetroitMichigan
ELPEl Paso International AirportEl PasoTexas
EWRNewark Liberty International AirportNewark / New York regionNew Jersey
FAIFairbanks International AirportFairbanksAlaska
FATFresno Yosemite International AirportFresnoCalifornia
FLLFort Lauderdale-Hollywood International AirportFort LauderdaleFlorida
GEGSpokane International AirportSpokaneWashington
GRRGerald R. Ford International AirportGrand RapidsMichigan
GSPGreenville-Spartanburg International AirportGreenville / SpartanburgSouth Carolina
HNLDaniel K. Inouye International AirportHonoluluHawaii
HOUWilliam P. Hobby AirportHoustonTexas
IADWashington Dulles International AirportWashington area / DullesVirginia
IAHGeorge Bush Intercontinental AirportHoustonTexas
INDIndianapolis International AirportIndianapolisIndiana
JAXJacksonville International AirportJacksonvilleFlorida
JFKJohn F. Kennedy International AirportNew York City / QueensNew York
JNUJuneau International AirportJuneauAlaska
KOAEllison Onizuka Kona International Airport at KeāholeKailua-KonaHawaii
LASHarry Reid International AirportLas VegasNevada
LAXLos Angeles International AirportLos AngelesCalifornia
LGALaGuardia AirportNew York City / QueensNew York
LITClinton National AirportLittle RockArkansas
MCIKansas City International AirportKansas CityMissouri
MCOOrlando International AirportOrlandoFlorida
MDWChicago Midway International AirportChicagoIllinois
MEMMemphis International AirportMemphisTennessee
MIAMiami International AirportMiamiFlorida
MKEMilwaukee Mitchell International AirportMilwaukeeWisconsin
MSPMinneapolis-Saint Paul International AirportMinneapolis / St. PaulMinnesota
MSYLouis Armstrong New Orleans International AirportNew Orleans / KennerLouisiana
MYRMyrtle Beach International AirportMyrtle BeachSouth Carolina
OAKSan Francisco Bay Oakland International AirportOakland / Bay AreaCalifornia
OGGKahului AirportMaui / KahuluiHawaii
OKCWill Rogers World AirportOklahoma CityOklahoma
OMAEppley AirfieldOmahaNebraska
ONTOntario International AirportOntario / Los Angeles regionCalifornia
ORDChicago O’Hare International AirportChicagoIllinois
ORFNorfolk International AirportNorfolkVirginia
PBIPalm Beach International AirportWest Palm BeachFlorida
PDXPortland International AirportPortlandOregon
PHLPhiladelphia International AirportPhiladelphiaPennsylvania
PHXPhoenix Sky Harbor International AirportPhoenixArizona
PITPittsburgh International AirportPittsburghPennsylvania
PNSPensacola International AirportPensacolaFlorida
PVDRhode Island T. F. Green International AirportProvidenceRhode Island
RDURaleigh-Durham International AirportRaleigh / DurhamNorth Carolina
RNOReno-Tahoe International AirportRenoNevada
ROCFrederick Douglass Greater Rochester International AirportRochesterNew York
RSWSouthwest Florida International AirportFort MyersFlorida
SANSan Diego International AirportSan DiegoCalifornia
SATSan Antonio International AirportSan AntonioTexas
SAVSavannah/Hilton Head International AirportSavannahGeorgia
SDFLouisville Muhammad Ali International AirportLouisvilleKentucky
SEASeattle-Tacoma International AirportSeattle / TacomaWashington
SFOSan Francisco International AirportSan FranciscoCalifornia
SJCSan José Mineta International AirportSan JoseCalifornia
SLCSalt Lake City International AirportSalt Lake CityUtah
SNAJohn Wayne AirportOrange CountyCalifornia
STLSt. Louis Lambert International AirportSt. LouisMissouri
SYRSyracuse Hancock International AirportSyracuseNew York
TPATampa International AirportTampaFlorida
TULTulsa International AirportTulsaOklahoma
TUSTucson International AirportTucsonArizona
XNANorthwest Arkansas National AirportBentonville / FayettevilleArkansas
Need every airport? this table intentionally excludes thousands of smaller, private, military, heliport, seaplane and general-aviation identifiers. FAA’s current NPIAS contains 3,287 airports, while the broader FAA location-identification system covers additional facility types.
Fast state lookup

United States airport codes by state

This compact state list helps you identify likely passenger airports quickly. For a deeper state-by-state directory, use the dedicated state guide rather than treating this national hub as a complete FAA inventory.

Alabama AL

BHM Birmingham · HSV Huntsville · MOB Mobile · MGM Montgomery

Alaska AK

ANC Anchorage · FAI Fairbanks · JNU Juneau · KTN Ketchikan

Arizona AZ

PHX Phoenix · TUS Tucson · AZA Mesa · FLG Flagstaff

Arkansas AR

LIT Little Rock · XNA Northwest Arkansas · FSM Fort Smith · TXK Texarkana

California CA

LAX Los Angeles · SFO San Francisco · SAN San Diego · SJC San Jose · OAK Oakland · SNA Orange County

Colorado CO

DEN Denver · COS Colorado Springs · ASE Aspen · EGE Eagle/Vail · GJT Grand Junction

Connecticut CT

BDL Hartford/Bradley · HVN New Haven

Delaware DE

ILG Wilmington

Florida FL

MIA Miami · MCO Orlando · FLL Fort Lauderdale · TPA Tampa · RSW Fort Myers · JAX Jacksonville

Georgia GA

ATL Atlanta · SAV Savannah · AGS Augusta · CSG Columbus

Hawaii HI

HNL Honolulu · OGG Maui · KOA Kona · LIH Lihue · ITO Hilo

Idaho ID

BOI Boise · IDA Idaho Falls · SUN Sun Valley · TWF Twin Falls

Illinois IL

ORD O’Hare · MDW Midway · RFD Rockford · MLI Moline · SPI Springfield

Indiana IN

IND Indianapolis · SBN South Bend · FWA Fort Wayne · EVV Evansville

Iowa IA

DSM Des Moines · CID Cedar Rapids · SUX Sioux City · ALO Waterloo

Kansas KS

ICT Wichita · MHK Manhattan · GCK Garden City · HYS Hays

Kentucky KY

SDF Louisville · LEX Lexington · CVG Cincinnati/Northern Kentucky · OWB Owensboro

Louisiana LA

MSY New Orleans · BTR Baton Rouge · SHV Shreveport · LFT Lafayette · AEX Alexandria

Maine ME

PWM Portland · BGR Bangor · PQI Presque Isle · RKD Rockland

Maryland MD

BWI Baltimore/Washington · HGR Hagerstown · SBY Salisbury

Massachusetts MA

BOS Boston · ORH Worcester · ACK Nantucket · MVY Martha’s Vineyard

Michigan MI

DTW Detroit · GRR Grand Rapids · FNT Flint · TVC Traverse City

Minnesota MN

MSP Minneapolis/St. Paul · DLH Duluth · RST Rochester · BJI Bemidji

Mississippi MS

JAN Jackson · GPT Gulfport/Biloxi · PIB Hattiesburg/Laurel · MEI Meridian

Missouri MO

STL St. Louis · MCI Kansas City · SGF Springfield · COU Columbia

Montana MT

BZN Bozeman · BIL Billings · MSO Missoula · FCA Kalispell · HLN Helena

Nebraska NE

OMA Omaha · LNK Lincoln · GRI Grand Island · BFF Scottsbluff

Nevada NV

LAS Las Vegas · RNO Reno/Tahoe · EKO Elko

New Hampshire NH

MHT Manchester · LEB Lebanon · PSM Portsmouth

New Jersey NJ

EWR Newark · ACY Atlantic City · TTN Trenton

New Mexico NM

ABQ Albuquerque · SAF Santa Fe · ROW Roswell · HOB Hobbs

New York NY

JFK JFK · LGA LaGuardia · BUF Buffalo · ROC Rochester · SYR Syracuse · ALB Albany

North Carolina NC

CLT Charlotte · RDU Raleigh/Durham · AVL Asheville · GSO Greensboro · ILM Wilmington

North Dakota ND

FAR Fargo · BIS Bismarck · MOT Minot · GFK Grand Forks · XWA Williston

Ohio OH

CLE Cleveland · CMH Columbus · DAY Dayton · CAK Akron/Canton

Oklahoma OK

OKC Oklahoma City · TUL Tulsa · LAW Lawton · SWO Stillwater

Oregon OR

PDX Portland · EUG Eugene · MFR Medford · RDM Redmond

Pennsylvania PA

PHL Philadelphia · PIT Pittsburgh · MDT Harrisburg · ABE Lehigh Valley

Rhode Island RI

PVD Providence · BID Block Island

South Carolina SC

CHS Charleston · GSP Greenville/Spartanburg · MYR Myrtle Beach · CAE Columbia

South Dakota SD

FSD Sioux Falls · RAP Rapid City · ABR Aberdeen · PIR Pierre

Tennessee TN

BNA Nashville · MEM Memphis · TYS Knoxville · CHA Chattanooga · TRI Tri-Cities

Texas TX

DFW Dallas/Fort Worth · DAL Dallas Love · IAH Houston Intercontinental · HOU Hobby · AUS Austin · SAT San Antonio

Utah UT

SLC Salt Lake City · PVU Provo · SGU St. George · CDC Cedar City

Vermont VT

BTV Burlington · RUT Rutland

Virginia VA

IAD Dulles · DCA Reagan National · RIC Richmond · ORF Norfolk · ROA Roanoke

Washington WA

SEA Seattle/Tacoma · GEG Spokane · PSC Tri-Cities · BLI Bellingham · PAE Everett

West Virginia WV

CRW Charleston · HTS Huntington · CKB Clarksburg · LWB Lewisburg

Wisconsin WI

MKE Milwaukee · MSN Madison · GRB Green Bay · ATW Appleton · CWA Central Wisconsin

Wyoming WY

JAC Jackson Hole · CPR Casper · CYS Cheyenne · COD Cody · GCC Gillette

Washington, DC: the major airports travelers associate with the capital are DCA and IAD in Virginia and BWI in Maryland. Airport market and physical state are not always the same thing.
States vs territories

U.S. territory airport codes travelers commonly see

Territories are not U.S. states, but their airports often appear in domestic or U.S.-focused travel searches. Code and immigration treatment can differ by destination and traveler status, so verify entry requirements separately from the airport code.

PR

Puerto Rico

SJU San Juan · BQN Aguadilla · PSE Ponce

VI

U.S. Virgin Islands

STT St. Thomas · STX St. Croix

GU

Guam

GUM Antonio B. Won Pat International Airport

AS

American Samoa

PPG Pago Pago International Airport

Northern Mariana Islands: SPN is Saipan International Airport. Do not mix territory abbreviations, postal abbreviations and passenger airport codes.
Traveler tools

Which airport code should you use?

Code-system selector

Choose what you are trying to do.

Choose a task to see the safest code system.

Multi-airport city checker

Use this before booking ground transport or a self-transfer.

Choose a metro area to compare likely airports.
High-risk booking confusion

Major U.S. cities with more than one practical airport

The cheapest flight is not always the cheapest trip. A different airport can change rail access, rideshare cost, hotel shuttle coverage, rental-car availability and the time needed for a connection.

New York City

JFK and LGA are in New York; EWR is in New Jersey but commonly appears in NYC flight searches.

JFKLGAEWR

Chicago

O’Hare and Midway are separate airports. A self-transfer between them requires substantial ground time.

ORDMDW

Washington, DC

Reagan National and Dulles are in Virginia; BWI is in Maryland. Ground access is very different.

DCAIADBWI

Dallas

DFW and Dallas Love Field are separate airports with different airline networks and ground-transport assumptions.

DFWDAL

Houston

George Bush Intercontinental and Hobby serve different parts of the market.

IAHHOU

San Francisco Bay Area

San Francisco, Oakland and San Jose can all be practical depending on the final destination.

SFOOAKSJC

Los Angeles region

LAX is only one option. Burbank, Orange County, Ontario and Long Beach can be much closer to some destinations.

LAXBURSNAONTLGB

Orlando

Orlando International and Orlando Sanford are separate airports with different locations and transport options.

MCOSFB

South Florida

Miami, Fort Lauderdale and Palm Beach may all appear for regional trips.

MIAFLLPBI
Printable and offline use

How to save a United States airport codes PDF

Use the Save / Print button above or your browser’s print command and choose “Save as PDF.” That produces a convenient traveler copy of this page without requiring a separate downloadable file that may become stale.

PDF

Travel reference

Save this page when you want a quick offline list for trip planning, school work or a travel spreadsheet.

FAA

Official U.S. inventory

Use FAA’s current NPIAS and location database when you need official airport-system data rather than a traveler shortlist.

IATA

Passenger-code verification

Use IATA’s official airport and location code search when a specific three-letter passenger code must be confirmed.

Static-list warning: airport names, commercial service and code assignments can change. A PDF saved today is a reference copy, not a permanent official database.
Avoid expensive errors

Airport-code mistakes that cause real travel problems

1. Booking the wrong airport in the same metro area

JFK, LGA and EWR can all appear for New York trips. ORD and MDW both serve Chicago. DCA, IAD and BWI can all appear for Washington travel.

Do this: compare the exact airport code with your hotel, meeting location, rail route or rental-car plan before paying.

2. Assuming the city and airport are in the same state

CVG serves Cincinnati but is physically in Kentucky. DCA and IAD serve Washington but are in Virginia. EWR serves the New York market from New Jersey.

Do this: separate “city served” from physical airport location.

3. Confusing an airline code with an airport code

AA identifies American Airlines, while DFW identifies an airport. DL is an airline designator; DEN is an airport.

Do this: look for the three-letter origin or destination code on the itinerary.

4. Treating a metro code as one physical airport

Travel systems may use broader location codes such as NYC or CHI for city-level searches. These can represent multiple airports rather than one terminal location.

Do this: verify the final airport code after choosing a flight.

5. Assuming every IATA and FAA identifier matches

They often match at major passenger airports, but IATA and FAA are separate systems with different purposes.

Do this: use the identifier required by the form or dataset.

6. Using codes alone in historical datasets

Airport names and code assignments can change over time, and data systems may reuse or redefine fields.

Do this: use stable BTS or dataset-specific airport IDs when doing longitudinal analysis.

Simple workflow

How to use a U.S. airport code correctly

Start with the three-letter code on the itinerary

For passenger travel, this is normally the IATA code. Example: SEA means Seattle-Tacoma International Airport.

Match the code to the full airport name

Do not rely only on the city. Multi-airport regions can have major differences in terminals, road distance and ground transportation.

Check the physical location

An airport may serve a city while being physically located in another city or state. This matters for rental cars, hotel shuttles and pickup.

Use the correct official source for the task

Use the airline or IATA for passenger codes, FAA for U.S. facility identifiers and airport-system data, and BTS documentation when analyzing transportation datasets.

Recheck before spending money on ground arrangements

Confirm the airport code before booking non-refundable parking, transfers, rental cars or hotels near the airport.

How many airports?

Why there is no simple count of “all United States airport codes”

The answer depends on what you mean by an airport and which identifier system you are counting. FAA’s current 2025–2029 National Plan of Integrated Airport Systems contains 3,287 NPIAS airports, but the United States has additional public, private and specialized aviation facilities outside that traveler-focused interpretation.

IATA’s location-code system is different again. IATA’s database covers airports, metropolitan areas and some intermodal locations around the world. That means an “IATA code count” is not the same thing as an FAA airport count.

3,287

NPIAS airports

FAA’s current national airport-system plan includes 3,287 airports across states and U.S. jurisdictions.

IATA

Location codes

IATA identifiers can represent commercial airports, metropolitan areas and certain intermodal locations.

LIST

This page

This guide deliberately lists commonly searched passenger airports rather than pretending to be a complete federal aviation registry.

Learn the common codes

United States airport codes quiz

What airport uses LAX?

Los Angeles International Airport in California.

What airport uses ORD?

Chicago O’Hare International Airport. ORD reflects the airport’s Orchard Field history.

What code is Orlando International Airport?

MCO.

What code is Harry Reid International Airport in Las Vegas?

LAS.

Which New York airport uses JFK?

John F. Kennedy International Airport.

What code is Denver International Airport?

DEN.

What are the three main New York-area airport codes?

JFK, LGA and EWR.

What is the difference between LAX and KLAX?

LAX is the passenger-facing IATA code. KLAX is the ICAO location indicator used in aviation operations.

Related Airport-Guides.org resources

Continue with a specific airport or region

Common questions

United States airport codes FAQs

What is the airport code for the United States?

There is no single airport code for the United States. Individual airports have their own identifiers, such as ATL, LAX, JFK, ORD, DFW and MIA.

What are United States airport codes?

They are identifiers used for airports and aviation locations. Travelers normally mean three-letter IATA codes shown on tickets, boarding passes and baggage tags.

Are all U.S. airport codes three letters?

Passenger-facing IATA airport codes use three letters, but FAA identifiers follow the FAA system and ICAO location indicators use four letters.

What is the difference between IATA and FAA airport codes?

IATA codes are widely used in commercial passenger travel, while FAA location identifiers are used for U.S. aviation facilities and government aviation records. They often match at major airports but are separate systems.

Why do many U.S. ICAO codes begin with K?

For airports in the contiguous United States, ICAO location indicators commonly use a K prefix with the three-letter identifier, such as KJFK or KLAX. Other U.S. regions use different ICAO prefixes.

What airport code should I use for New York City?

It depends on the actual flight. JFK is John F. Kennedy International, LGA is LaGuardia and EWR is Newark Liberty in New Jersey. Confirm the airport before arranging ground transportation.

Which airport code should I use for Washington, DC?

Common choices are DCA for Reagan National, IAD for Dulles and BWI for Baltimore/Washington. They are separate airports in Virginia and Maryland.

Why is Chicago O’Hare ORD?

The ORD code is tied to O’Hare’s earlier Orchard Field identity. Airport codes often remain even after an airport is renamed.

Why is Orlando International Airport MCO?

MCO reflects the airport site’s earlier McCoy Air Force Base name. The modern airport name changed, while the established airport code remained.

Can airport codes change?

Yes. Airport names, service patterns and some code assignments can change. Use official IATA, FAA, airline or airport sources when a code must be current and exact.

Where can I download every FAA airport identifier?

Use the FAA Location ID Database or current FAA aeronautical-data resources. A traveler list like this page should not be treated as a complete FAA facility database.

Can I save this United States airport codes list as a PDF?

Yes. Use the Save / Print button or your browser’s print menu and choose Save as PDF. Verify critical codes again before travel because a saved PDF is static.

Official verification

Where to verify a United States airport code

Use IATA’s official code search when you need to confirm a passenger-facing airport or location code. Use FAA’s Location ID Database and aeronautical data for U.S. aviation facilities. FAA’s current NPIAS files are appropriate when you need the national airport-system inventory rather than a commercial travel shortlist.

For an actual trip, the operating airline and the airport’s official site remain the best sources for flight number, gate, terminal, baggage, parking and same-day transportation information.

Before booking: use the three-letter IATA code shown by the airline, match it to the full airport name and physical location, and compare nearby airports when a city has more than one option. Use FAA, IATA or DOT/BTS data directly when your task requires official facility records, aviation operations or historical datasets rather than passenger travel shorthand.