To provide train service City Line for commuters starting from Phaya Thai Station to Suvarnabhumi Airport Terminal.  There are 6 intermediate stations and the ride will take 30 minutes to complete per direction (28 km.). On service will be altogether 5 train sets, each comprising 3 Saloons.

• Stop at all stations ( 8 stations)
• Serves for commuters en route and airport-related employees
• Min. 15 minutes service interval
• Less than 30 minutes travel time

To provide train service Express Line for passengers on linking City Air Terminal (CAT) at Makkasan to Suvarnabhumi Airport Terminal. Leaving the CAT, the Express Line will run non-stop  15 minutes to reach Airport Terminal.  On service will be altogether 4 train sets, each comprising 3 Saloons and 1 Baggage Car.

• Max. Operation Speed of 160 km/h
• Non-stop direct rail service between downtown and Airport
• Exclusive service for airport users
• BaggageCompartment Car delicated for 
  in-town checked-in Baggage
• Initially 15 minutes service interval
• Less than 15 minutes journey time