An Alaska Airlines passenger put an AirTag on their luggage last summer before checking it in San Francisco. The bag was delivered to San Diego just fine. It was at baggage claim shortly after landing – without the AirTag on it. The tag had fallen off.
The plane was an Embraer E-175 regional jet operated for Alaska Airlines by SkyWest. And that SkyWest plane has been “bopping around the western US and Canada ever since” with the passenger’s AirTag in the cargo hold.