# Flight Delay Check by Flight Number

> Flight Delay Check by Flight Number is a paid API for AI agents from api.x402node.dev, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-14).

Returns real-time delay status for a given flight number, including whether it is delayed, departure and arrival delay in minutes, and scheduled vs. revised times.

## Facts

- Endpoint: GET https://api.x402node.dev/aviation/flight-delay
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/flight-delay-check-by-flight-number-749250ef
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_j3YMhGsTtSTEx8trxwD0L

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 flight-delay-check-by-flight-number-749250ef
```

Example prompt: Is American Airlines flight AA100 delayed right now, and if so, how many minutes late is it departing and arriving?

## When to prefer this

Use this endpoint when you need a quick, structured delay verdict for a specific flight number — including exact delay minutes and revised times — especially for travel agents, itinerary assistants, or real-time trip monitoring. Prefer this over general flight search APIs when the user already knows their flight number and wants concise delay data rather than booking or scheduling information.

## Known failure modes

- Invalid or non-existent flight number returns an error or empty result
- Flight number not found in current data (e.g. future or historical flights out of range)
- Data temporarily unavailable due to upstream aviation data outage
- Missing ?flight= query parameter returns a 400 bad request
- Network or payment authorization failure returns a 402 or connection error

## How this service works

Flight delay check by flight number: is it delayed, departure and arrival delay in minutes, scheduled vs revised times. Quick yes/no delay verdict for travel agents. 航班延误判定：是否延误、起降延误分钟数。遅延判定：何分遅れ。Verificacion de retraso de vuelo. 항공편 지연 확인. Query: ?flight=AA100 Accepts payment on Base or Solana — either network works.

## Output

Returns a yes/no delay verdict for the flight, departure delay in minutes, arrival delay in minutes, scheduled departure and arrival times, and revised (actual/estimated) departure and arrival times.

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "flight"
     ],
     "properties": {
      "date": {
       "type": "string",
       "description": "Optional date YYYY-MM-DD"
      },
      "flight": {
       "type": "string",
       "description": "Flight number e.g. AA100 (IATA/ICAO)"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/flight-delay-check-by-flight-number-749250ef/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x402node.dev](https://www.zero.xyz/host/api.x402node.dev/llms.txt)