Some cities give you a choice: a premium airport express or the regular city metro/commuter line that also reaches the airport. Here is how to choose.
Airport express
Faster, fewer stops, more luggage space and a higher fare. Best when time and comfort matter, or you have bags.
City metro / commuter line
Cheaper, more frequent and more stops — but slower, busier and tighter for luggage at peak times. Great value if you are on a budget and travelling light.
How to choose
Short on time or carrying bags, take the express. Watching the budget and travelling light, take the metro. Our guide for each city says which option exists and which is the better deal. New to airport trains? See first-time riders, or weigh the cab option in airport train vs taxi.