There are different types of journeys in air travel, depending on the purpose and duration of the trip. Here are some of the most common types of air travel journeys:

1. Domestic Journeys: These are flights within the same country, for example, from one city to another within the United States.
2. International Journeys: These are flights that cross international borders, for example, from New York to Paris.
3. Round-Trip Journeys: This is a journey where a passenger travels from one place to another and then returns to the original place of departure. It includes both outbound and return flights.
4. One-Way Journeys: This is a journey where a passenger travels from one place to another without returning to the original place of departure. It includes only an outbound flight.
5. Multi-City Journeys: This is a journey where a passenger travels to multiple destinations with different arrival and departure points. For example, a passenger may fly from New York to Paris, then to Rome, and then return to New York.
6. Direct Journeys: This is a journey where a passenger flies from one place to another without changing planes, but the flight may make stops in between.
7. Non-Stop Journeys: This is a journey where a passenger flies from one place to another without any stops or layovers.
8. Connecting Journeys: This is a journey where a passenger changes planes at an intermediate airport before reaching the final destination.

The type of journey a passenger takes will depend on their destination, budget, travel purpose, and other factors. Understanding the different types of air travel journeys can help travelers plan their trips more effectively and make informed decisions about their travel plans.