An insulation, padding, or stiffening fabric, either sewn to the wrong side of the lining or the inner side of the outer shell fabric The interlining is used primarily to provide warmth in coats, jackets, and outerwear
- Interlining is used in two ways: Interlining allows the use of the same revenue vehicle and/or operator on more than one route without going back to the garage Interlining is often considered as a means to minimize vehicle requirements as well as a method to provide transfer enhancement for passengers For interlining to be feasible, two (or more) routes must share a common terminus or be reasonably proximate to each other (see DEADHEAD)
This means you have a connecting flight with two different airlines You leave home on one airline, connect somewhere enroute and take a completely different airline for the remainder of your trip Although they work together, each airline operates separately under their own rules and regulations Sometimes you can check your baggage straight through, but often you will have to retrieve your luggage at the connection airport and recheck it onto your next carrier