United States
| Country code | US |
| Country code (3 digit) | USA |
| Continent | North America |
| Flight Information Regions | 22 |
| Airports | 25,473 |
| METARs | 2,500 |
| Size | 9,447,945 km2 |
| AIP |
Flight Information Regions (FIRs) in United States
| ICAO | Name | Airports |
|---|---|---|
| KZHU | Houston FIR | 2228 |
| KZMP | Minneapolis FIR | 1947 |
| KZFW | Ft Worth FIR | 1495 |
| KZKC | Kansas City FIR | 1413 |
| KZAU | Chicago FIR | 1409 |
| KZBW | Boston FIR | 1395 |
| KZLA | Los Angeles FIR | 1312 |
| KZSE | Seattle FIR | 1305 |
| KZDC | Washington FIR | 1297 |
| KZOB | Cleveland FIR | 1173 |
| KZLC | Salt Lake FIR | 1135 |
| KZTL | Atlanta FIR | 1104 |
| KZME | Memphis FIR | 1073 |
| KZID | Indianapolis FIR | 1040 |
| KZDV | Denver FIR | 1016 |
| KZJX | Jacksonville FIR | 1002 |
| PAZA | Anchorage Arctic FIR | 977 |
| KZNY | New York FIR | 934 |
| KZAB | Albuquerque FIR | 906 |
| KZOA | Oakland FIR | 733 |
| KZMA | Miami FIR | 552 |
| KZAK | Oakland Oceanic West FIR | 171 |
Airports in United States
Sorted by ICAO code or airport identifier, first all airports with a METAR
| ID | Name | IATA | FIR | METAR | City | Type |
|---|---|---|---|---|---|---|
| KALS | San Luis Valley Regional/Bergman Field | ALS | Denver FIR | V  | Alamosa | Midsized airport |
| KALW | Walla Walla Regional Airport | ALW | Seattle FIR | V  | Walla Walla | Midsized airport |
| KALX | Thomas C Russell Field | ALX | Atlanta FIR | V  | Alexander City | Midsized airport |
| KAMA | Rick Husband Amarillo International Airport | AMA | Albuquerque FIR | V | Amarillo | Midsized airport |
| KAMG | Bacon County Airport | Jacksonville FIR | V | Alma | Midsized airport | |
| KAMN | Gratiot Community Airport | AMN | Cleveland FIR | V | Alma | Midsized airport |
| KAMW | Ames Municipal Airport | AMW | Minneapolis FIR | V | Ames | Midsized airport |
| KANB | Anniston Regional Airport | ANB | Atlanta FIR | V | Anniston | Midsized airport |
| KAND | Anderson Regional Airport | AND | Atlanta FIR | V | Anderson | Midsized airport |
| KANE | Anoka County/Blaine (Janes Field) | Minneapolis FIR | M  | Minneapolis | Midsized airport | |
| KANJ | Sault Ste Marie Municipal/Sanderson Field | Minneapolis FIR | V | Sault Ste Marie | Midsized airport | |
| KANK | Salida/Harriett Alexander Field | SLT | Denver FIR | V | Salida | Midsized airport |
| KANQ | Tri-State Steuben County Airport | ANQ | Chicago FIR | I  | Angola | Midsized airport |
| KANW | Ainsworth Regional Airport | ANW | Denver FIR | V | Ainsworth | Midsized airport |
| KAOH | Lima Allen County Airport | AOH | Indianapolis FIR | V  | Lima | Midsized airport |
| KAOO | Altoona/Blair County Airport | AOO | Cleveland FIR | M | Altoona | Midsized airport |
| KAPA | Centennial Airport | APA | Denver FIR | V | Denver | Midsized airport |
| KAPC | Napa County Airport | APC | Oakland FIR | V | Napa | Midsized airport |
| KAPF | Naples Municipal Airport | APF | Miami FIR | V | Naples | Midsized airport |
| KAPG | Phillips Army Air Field | APG | Washington FIR | V | Aberdeen Proving Grounds (Aberdeen) | Midsized airport |
| KAPN | Alpena County Regional Airport | APN | Minneapolis FIR | V | Alpena | Midsized airport |
| KAPS | Port Of South Louisiana Executive Regional Airport | APS | Houston FIR | M | Reserve | Midsized airport |
| KAPY | Zapata County Airport | Houston FIR | V  | Zapata | Midsized airport | |
| KAQO | Llano Municipal Airport | Houston FIR | V | Llano | Midsized airport | |
| KAQP | Appleton Municipal Airport | Minneapolis FIR | V | Appleton | Midsized airport | |
| KAQV | Peason Ridg/Polk Weather Station | Houston FIR | M | Weather service | ||
| KAQW | Harriman-And-West Airport | Boston FIR | V | North Adams | Midsized airport | |
| KAQX | Allendale County Airport | Jacksonville FIR | V | Allendale | Midsized airport | |
| KARA | Acadiana Regional Airport | ARA | Houston FIR | V | New Iberia | Midsized airport |
| KARB | Ann Arbor Municipal Airport | ARB | Cleveland FIR | V | Ann Arbor | Midsized airport |
| KARG | Walnut Ridge Regional Airport | ARG | Memphis FIR | M | Walnut Ridge | Midsized airport |
| KARR | Aurora Municipal Airport | AUZ | Chicago FIR | V | Chicago/Aurora | Midsized airport |
| KART | Watertown International Airport | ART | Boston FIR | V | Watertown | Midsized airport |
| KARV | Lakeland/Noble F Lee Memorial Field | ARV | Minneapolis FIR | I | Minocqua-Woodruff | Midsized airport |
| KARW | Beaufort Executive Airport | BFT | Jacksonville FIR | V | Beaufort | Midsized airport |
| KASD | Slidell Airport | Houston FIR | M | Slidell | Midsized airport | |
| KASE | Aspen-Pitkin County/Sardy Field | ASE | Denver FIR | M  | Aspen | Midsized airport |
| KASG | Springdale Municipal Airport | SPZ | Memphis FIR | V | Springdale | Midsized airport |
| KASH | Boire Field | ASH | Boston FIR | V | Nashua | Midsized airport |
| KASJ | Tri-County At Henry Joyner Field | Washington FIR | M | Ahoskie | Midsized airport | |
| KASL | Harrison County Airport | ASL | Ft Worth FIR | V | Marshall | Midsized airport |
| KASN | Talladega Municipal Airport | ASN | Atlanta FIR | V | Talladega | Midsized airport |
| KAST | Astoria Regional Airport | AST | Seattle FIR | V | Astoria | Midsized airport |
| KASW | Warsaw Municipal Airport | Chicago FIR | M | Warsaw | Midsized airport | |
| KASX | John F Kennedy Memorial Airport | ASX | Minneapolis FIR | V | Ashland | Midsized airport |
| KATA | Hall-Miller Municipal Airport | Ft Worth FIR | V | Atlanta | Midsized airport | |
| KATL | Hartsfield-Jackson Atlanta International | ATL | Atlanta FIR | M | Atlanta | Large airport |
| KATP | Green Canyon 787 Weather Station | Houston FIR | M | Green Canyon 787 | Weather service | |
| KATS | Artesia Municipal Airport | ATS | Albuquerque FIR | V | Artesia | Midsized airport |
| KATT | Austin Weather Station | Houston FIR | V | Austin | Weather service |
Showing 251-300 of 20,295 items.