How can I find ETA to destination port information within the JSON payload?

This article describes the milestones that indicate the estimated time to arrival of containers to the destination port

Within the JSON payload, the ETA, or estimated time to arrival, to the destination port will be listed as an individual milestone within the list of milestones.

Vessel arrived at destination port represents the ETA of the vessel to the destination port when planned is set to true. This same milestone will then represent the ATA (actual time of arrival) when planned is set to false.

See below for a sanitized example of this estimated milestone:

{
  "timestamp": "2023-12-31T12:00:00.000-08:00",
  "location": {
    "name": "Gct Deltaport",
    "city": "Vancouver",
    "state": "British Columbia",
    "country": "Canada",
    "unlocode": "CAVAN",
    "facility_code": "DLT",
    "facility": null,
    "raw_name": null,
    "raw_unlocode": "CAVAN",
    "geolocation": {
      "latitude": 49.02056,
      "longitude": -123.15139
    }
  },
  "description": "Vessel arrived at destination port",
  "raw_description": "berth",
  "journey_event": {
    "journey_type": "TRANSPORT",
    "event_classifier": "ACT",
    "event_type": "ARRI",
    "transport_mode": "VESSEL",
    "facility_type": "POTE"
  },
  "shipment_location": {
    "type_code": "POD"
  },
  "vessel": "removed",
  "vessel_imo": "removed",
  "vessel_mmsi": "removed",
  "voyage": null,
  "planned": true,
  "mode": "Vessel",
  "transport_type": null,
  "source": "carrier"
}