# `flights.offer_not_found` — Offer not found

**HTTP status:** 404  
**Retryable:** no — change the request or the flow first

## When it happens

The `offerId` is unknown. Offers belong to the agency that searched them and are kept for at most 30 minutes.

## What to do

Search again and use an `offerId` from the new results.

## Example response

```json
{
  "type": "https://quickota.com/developers/errors/flights.offer_not_found",
  "title": "Offer not found",
  "status": 404,
  "code": "flights.offer_not_found",
  "detail": "The \u0060offerId\u0060 is unknown. Offers belong to the agency that searched them and are kept for at most 30 minutes.",
  "suggestion": "Search again and use an \u0060offerId\u0060 from the new results.",
  "retryable": false,
  "requestId": "req_7f3a2c9e41d0b8a6c5e21f90"
}
```

See [Errors](https://quickota.com/developers/guides/errors) for how to handle errors in general.