It is vital to remember that every airline has its own rules which form part of the agreement of carriage. The rules can differ between airlines. They can include clauses that govern check-in times and refund procedures, as well as responsibility in the event of delayed flight among numerous other aspects.
In the case of domestic travel An airline can provide all its contract terms in your ticket at the time you purchase it. Numerous smaller “commuter” carriers utilize this method. Other airlines might opt to “incorporate terms in refer to.” That means you do not receive the entire airline’s policies in your ticket. Most of them are in a separate form that is available for inspection upon demand.
If an airline chooses to “incorporate by reference” it must issue a clear written notice on each ticket that) it incorporates specific terms through reference, and 2)) the terms can contain liability limitations …