If there is no interline ticketing agreement, two separate tickets must be issued and passengers must pick up their luggage and take it to the connecting company for check-in. Interline routes such as this one are more risky for travellers, as the second airline may not be aware of inbound flight delays or problems and is less likely to authorize a toll-free change of booking in the event of a loss of the route. There may also be a problem if the baggage is lost and the traveller wishes to be sent to them later. Twenty years ago, code actions were mainly limited to flights that were not operated by the marketing company. Today, American Airlines, which does not travel to the Middle East and therefore puts its flight code on flights to Abu Dhabi, operated by Etihad, is an example. In return, Etihad places its code on certain national connections to/from American`s AA platforms. This allows both airlines to show flights up on search engines, and earn miles and elite perks for Americans and Etihad frequent travelers throughout the trip. With relatively few code actions on large long-haul flights and more service from airlines that are done personally (by phone) and not online, code actions were a way to strengthen airlines` flexibility to sell flights, especially on their main flights. However, in recent times, airlines have been looking at so-called code sharing, including code sharing with another airline, although they fly themselves. This is particularly the case for alliance partners and joint ventures (JV). Joint venture airlines (where they sell tickets for each other`s flights and then share revenues) used code actions to sell tickets for their partners` flights.
For example, all flights between the United States and Europe with American Airlines, British Airways, Iberia and Finnair carry flight numbers (AA, BA, IB and AY); and there are many other examples within Star Alliance and Skyteam). This can be very confusing for passengers who end up booking flights because they think they are with one airline, but they are actually operated by another airline. If you book an action code, you can actually book a flight with another airline or an itinerary with several airlines. While hold baggage is governed by conventions or (in the case of the United States), all other flight rules are set by the actual air carrier. These include the wearing of boundaries, seat allocation rules (which may require payment of early seat selection) and, of course, on-board service. Thus, in the end, you can pay a seat selection fee to the exporting airline or have a stricter baggage restriction than you would for the airline you thought was in flight. And on code actions, always check with the exit airline for the first flight, which can also be a source of confusion; You can check in at London Heathrow Terminal 5 to check in for your BA-coded flight, only to be sent to Terminal 3 (25 minutes away), as this flight is by American or Finnair or Iberia. With the arrival of low-cost airlines, special Internet fares and easy online booking, many airline passengers plan their own online trips without the help of a professional.