The released date for the Airport expansion for Cities: Skylines is drawing near, and with it, new information is popping up about what exactly players can expect when planning their own city.
There are 3 different styles you can choose from when building your airport: Classic, Modern, and Ultra Modern. Each style has 3 different sizes of terminal buildings, a concourse network, a control tower, and a concourse hub with built-in metro for those very large airports, and all 3 style options are available at level 1.
An airport can have multiple terminal buildings, which function as different entry and exit points for citizens. This lets you expand your airport as it grows, with different terminals able to handle different amounts of traffic. For a busy airport, you might want to use the 2 story terminal option, which splits arrivals and departures and has a dedicated lane for buses and taxis to drop off or pick up passengers.
Selecting the Airport Area name or using the Airport Area Info button after selecting a terminal brings up the Airport Info Panel, which shows all the relevant information for your airport: Level, passenger count, attractiveness score, income and expenses, and much more.
Like most public transport you will find an airport to be a costly investment with little direct income. Instead, it brings in tourists to your city, who visit attractions and commercial buildings, adding to your income. And the attractiveness of the airport also increases the City Attractiveness, which helps bring in even more tourists!
The Policies tab lets you apply area-specific policies, like Hotel Discounts, which gives your airport a direct increase in attractiveness, Great Maintenance, which adds a Land Value bonus to the whole airport, and Car Rentals, which encourages tourists to use cars but may cause increased traffic.