# FAA API

> FAA returns US airport delay and closure events as a workflow and API.

FAA returns airport delay and closure events through Get airport delays, using a US airport name, city, or three-letter code. Results include event type, reason, trend, timing, delay estimates, and whether an event is active.

- Page: https://fous.com/workflows/faa
- Handle: `@faa`
- Category: [Travel](https://fous.com/workflows/category/travel)
- Source website: https://faa.gov
- Last verified: Sep 29, 2026
- Fous is not affiliated with FAA.

## Methods

### Get airport delays

Operation `get_airport_delays`, version 1. 1 credit per call.

Get current FAA delay and closure events for a US airport by name, city, or code. Cities with multiple airports resolve to one airport; reported delays may not reflect every flight.

**Input**

| Field | Type | Required | Example | Description |
|---|---|---|---|---|
| `airport` | string | yes | `"LAS"` | US airport name, city, or three-letter airport code, such as Denver or LAX. |

**Input schema**

```json
{
  "type": "object",
  "required": [
    "airport"
  ],
  "properties": {
    "airport": {
      "type": "string",
      "description": "US airport name, city, or three-letter airport code, such as Denver or LAX.",
      "examples": [
        "LAS",
        "Denver",
        "Los Angeles International Airport"
      ]
    }
  },
  "additionalProperties": false,
  "examples": [
    {
      "airport": "LAS"
    },
    {
      "airport": "Denver"
    },
    {
      "airport": "Los Angeles International Airport"
    }
  ]
}
```

**Output**

| Field | Type | Example | Description |
|---|---|---|---|
| `events` | array |  |  |
| `events[].type` | string | `"ground delay program"` |  |
| `events[].trend` | string or null | `"increasing"` |  |
| `events[].reason` | string or null | `"thunderstorms"` |  |
| `events[].end_time` | string or null | `"2026-09-29T07:59:00+00:00"` |  |
| `events[].start_time` | string or null | `"2026-09-28T23:00:00+00:00"` |  |
| `events[].average_delay` | string or null | `"202 min"` |  |
| `events[].maximum_delay` | string or null | `"385 min"` |  |
| `events[].raw_faa_reason` | string or null | `"thunderstorms"` |  |
| `events[].status_page_link` | string | `"https://nasstatus.faa.gov/list"` |  |
| `airport_code` | string | `"LAS"` |  |
| `airport_name` | string | `"Harry Reid International"` |  |
| `delay_active` | boolean | `true` | Whether any FAA event is active now. |
| `status_page_link` | string | `"https://nasstatus.faa.gov/list"` |  |

**Example input**

```json
{
  "airport": "LAS"
}
```

**Example output**

```json
{
  "events": [
    {
      "type": "ground delay program",
      "trend": null,
      "reason": "thunderstorms",
      "end_time": "2026-09-29T07:59:00+00:00",
      "start_time": "2026-09-28T23:00:00+00:00",
      "average_delay": "202 min",
      "maximum_delay": "385 min",
      "raw_faa_reason": "thunderstorms",
      "status_page_link": "https://nasstatus.faa.gov/list"
    },
    {
      "type": "departure delay",
      "trend": "increasing",
      "reason": "weather-related traffic management",
      "end_time": null,
      "start_time": null,
      "average_delay": "30 min",
      "maximum_delay": "45 min",
      "raw_faa_reason": "TM Initiatives:STOP:WX",
      "status_page_link": "https://nasstatus.faa.gov/list"
    }
  ],
  "airport_code": "LAS",
  "airport_name": "Harry Reid International",
  "delay_active": true,
  "status_page_link": "https://nasstatus.faa.gov/list"
}
```

## Quick start

Call the API with a Fous API key (`FOUS_API_KEY`). To create one, turn on Developer mode in Fous Studio, then open Keys & connections → API keys (https://app.fous.com/keys).

```bash
# First set your key: export FOUS_API_KEY='YOUR_FOUS_API_KEY'
: "${FOUS_API_KEY:?Set FOUS_API_KEY before running this example}"

curl 'https://api.fous.com/v1/query' \
  --fail-with-body --silent --show-error --max-time 120 \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H 'Content-Type: application/json' \
  --data-raw '{
  "api": "@faa",
  "visibility": "public",
  "operation": "get_airport_delays",
  "version": 1,
  "input": {
    "airport": "LAS"
  },
  "response": {
    "format": "json"
  }
}'
```

```python
# Save as fous.py and run with python3 fous.py. No packages needed.
# First set your key: export FOUS_API_KEY='YOUR_FOUS_API_KEY'
import json
import os
import urllib.error
import urllib.request

api_key = os.environ.get("FOUS_API_KEY")
if not api_key:
    raise RuntimeError("Set FOUS_API_KEY before running this example")

body = json.loads("{\n  \"api\": \"@faa\",\n  \"visibility\": \"public\",\n  \"operation\": \"get_airport_delays\",\n  \"version\": 1,\n  \"input\": {\n    \"airport\": \"LAS\"\n  },\n  \"response\": {\n    \"format\": \"json\"\n  }\n}")
request = urllib.request.Request(
    "https://api.fous.com/v1/query",
    data=json.dumps(body).encode("utf-8"),
    headers={
        "Authorization": f"Bearer {api_key}",
        "Content-Type": "application/json",
    },
    method="POST",
)
try:
    with urllib.request.urlopen(request, timeout=120) as response:
        result = json.load(response)
except urllib.error.HTTPError as error:
    raise RuntimeError(f"HTTP {error.code}: {error.read().decode('utf-8', errors='replace')}") from error
if result.get("success") is False:
    raise RuntimeError(result.get("error", {}).get("message", "Request failed"))
print(json.dumps(result["data"]["output"], indent=2))
```

```typescript
// Save as fous.mts and run with npx tsx fous.mts.
// First set your key: export FOUS_API_KEY='YOUR_FOUS_API_KEY'
const apiKey = process.env.FOUS_API_KEY;
if (!apiKey) throw new Error("Set FOUS_API_KEY before running this example");

const response = await fetch("https://api.fous.com/v1/query", {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${apiKey}`,
    "Content-Type": "application/json",
  },
  signal: AbortSignal.timeout(120_000),
  body: JSON.stringify({
  "api": "@faa",
  "visibility": "public",
  "operation": "get_airport_delays",
  "version": 1,
  "input": {
    "airport": "LAS"
  },
  "response": {
    "format": "json"
  }
}),
});
type ApiResult = { success: boolean; data?: { output: unknown }; error?: { message: string } };
const result: ApiResult = await response.json();
if (!response.ok || result.success === false) {
  throw new Error(result.error?.message ?? `HTTP ${response.status}`);
}
if (!result.data) throw new Error("Missing API response data");
console.log(result.data.output);
```

Or describe the data in plain language: send `{"api":"@faa","prompt":"Describe the data you need, with every detail"}` to the same URL. Fous fills in the input, runs the method that fits and returns only the fields you asked for; `data.route.calls[].request` is the exact call it made. Routing is free; the run costs the same.

## Use cases

- Check delay and closure events for a US airport.
- Track average and maximum reported delay times.
- Review event reasons and trends.
- Check whether an FAA event is active.

## FAQ

### Is Fous affiliated with FAA?

No. Fous is not affiliated with FAA. This workflow reads the public faa.gov website and returns its data.

### How much does it cost?

Each run costs 1 credit. With pay-as-you-go, a credit costs 1¢; monthly plans cost less per credit.

### Do I need a FAA account?

No. You only need a Fous account.

### How current is the data?

Fous gets the data from faa.gov when you run it; repeating the same request within a day may return the saved result. Fous checks this workflow automatically; it last passed a check on Sep 29, 2026.

### What delay events affect an airport?

Get airport delays returns FAA delay and closure events for a US airport by name, city, or code.

### How long are airport delays?

Get airport delays returns average and maximum delay estimates for reported events.

### When does an airport delay start or end?

Get airport delays returns start and end times for reported events.

## Related

- [FlightAware API](https://fous.com/workflows/flightaware.md): FlightAware provides public flight status and dated flight details, airport arrivals and departures limited to displayed history and 20 flights per direction, plus today’s delays and cancellations when shown.
- [Flightradar24 API](https://fous.com/workflows/flightradar24.md): Flightradar24 provides live flight tracking, recent history, flight status and times, plus upcoming airport departures and arrivals; history and schedules are limited to recent and upcoming flights.
- [TSA Wait Times API](https://fous.com/workflows/tsa-wait-times.md): Security wait time estimates at US airports.
- [Amtrak API](https://fous.com/workflows/amtrak.md): Amtrak passenger train travel and status.
- [Expedia API](https://fous.com/workflows/expedia.md): Expedia helps travelers find hotels, vacation stays, and travel deals, with hotel prices and flight options for selected destinations and dates; flight listings may be limited.
- [Ryanair API](https://fous.com/workflows/ryanair.md): Ryanair provides flights and fares, including lowest one-way prices by destination or day for selected dates; prices and availability can change.
- [AirNow API](https://fous.com/workflows/airnow.md): Current and forecast air quality for reporting areas in the United States and covered cities in Canada and Mexico.
- [IQAir API](https://fous.com/workflows/iqair.md): City air quality readings and forecasts from IQAir.
- [All Travel workflows](https://fous.com/workflows/category/travel)