# FlightAware Airport Delays

> FlightAware Airport Delays is a paid API for AI agents from stabletravel.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns current delay information (type, category, color-coded severity, and delay duration) for London Heathrow Airport (LHR)

## Facts

- Endpoint: GET https://stabletravel.dev/api/flightaware/airports/LHR/delays
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/flightaware-airport-delays-64a571da
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_I5EJX2pi_wh1GCAsI0RvK

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability flightaware-airport-delays-64a571da
```

Example prompt: Are there any current delays at London Heathrow airport right now, and if so, what's causing them and how severe are they?

## When to prefer this

Use this endpoint when you specifically need live delay status for London Heathrow (LHR) and want structured, color-coded severity data with per-category breakdown. It is ideal for travel agents, disruption monitoring systems, and pre-departure checks for LHR-routed itineraries. For other airports, look for sibling FlightAware endpoints or a parameterized airport delay endpoint.

## Known failure modes

- Airport code is hardcoded to LHR — no other airports can be queried via this endpoint
- No delays may be returned (empty array) if no active delays exist at LHR
- Upstream FlightAware data unavailable due to API outage returns an error
- Payment failure ($0.02 USDC not available) blocks the request
- Stale data if FlightAware feed has not updated recently

## How this service works

Get current delay information for a specific airport

## Output

Returns an array of delay objects for LHR, each containing the airport code, a color-coded severity indicator (e.g. red/yellow/green), and an array of delay reasons with category labels, affected flight counts, and delay duration in seconds.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "properties": {},
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "required": [
      "delays"
     ],
     "properties": {
      "delays": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "color": {
          "type": "string"
         },
         "airport": {
          "type": "string"
         },
         "reasons": {
          "type": "array",
          "items": {
           "type": "object",
           "properties": {
            "color": {
             "type": "string"
            },
            "count": {
             "type": "number"
            },
            "category": {
             "type": "string"
            },
            "delay_secs": {
             "type": "number"
            }
           },
           "additionalProperties": false
          }
         },
         "airport_code": {
          "type": "string"
         }
        },
        "additionalProperties": false
       }
      }
     },
     "additionalProperties": false
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/flightaware-airport-delays-64a571da/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stabletravel.dev](https://www.zero.xyz/host/stabletravel.dev/llms.txt)