Based on the provided reference, which is a list of defunct airlines of the United States, all the airlines mentioned in the list currently do not exist as operational companies.
Understanding "Defunct Airlines"
The term "defunct" means that these airlines previously existed and operated but have since ceased operations and gone out of business. Therefore, any airline listed in a compilation of defunct airlines is one that currently does not exist.
Airlines Listed in the Reference
The reference lists several airlines that are now defunct. This means they are no longer flying or operating in any capacity. The question "Which airline does not exist?" can be answered by pointing to any of the airlines on such a list, as they all fit the description of not existing currently.
Here are the airlines specifically mentioned in the provided snippet from the list of defunct airlines:
| Airline | State or Territory | Commenced Operations | Status (as per reference) |
|---|---|---|---|
| ADI Domestic Airlines | Illinois | 1992 | Defunct |
| Adirondack Airlines | New York | 1991 | Defunct |
| Admiral Airways | California | 1959 | Defunct |
| Admiralty Air | Florida | 2009 | Defunct |
Source: List of defunct airlines of the United States (A–C) - Wikipedia
In summary, according to the context of the reference provided, airlines such as ADI Domestic Airlines, Adirondack Airlines, Admiral Airways, and Admiralty Air are examples of airlines that no longer exist because they are defunct. The question implies identifying an airline from a potential set that is non-existent; within the specific list provided, all entries are non-existent today.
