The Suvarnabhumi Airport Rail Link is under construction from Suvarnabhumi International Airport to the planned City Air Terminal in Makkasan area of Bangkok.

Construction of the line started in 2005. The line is being built by a consortium of B Grimm, STECON and Siemens, and will be owned and operated by State Railway of Thailand (SRT). The estimated cost of the project is 25.9 billion baht.

As of October 2006, the line is 44% complete and is expected to be ready for service in October 2008.

The Airport Link line will be 28.6 km long and elevated for most of its length. Both non-stop Express services (known informally as the Pink Line) and Commuter services (the Red Line) will be operated. Siemens Desiro trainsets, capable of speeds of up to 160 km/h, will be used, with Express journeys taking 15 minutes and Commuter trips 27 minutes.

Express Service

Suvarnabhumi Airport - Makkasan (City Air Terminal - interchange with MRT Blue Line (Phetchaburi Station))

Commuter Service

Suvarnabhumi Airport - Lad Krabang - Thub Chang - Hua Mark - Ramkhamhaeng - Makkasan (City Air Terminal - interchange with MRT Blue Line (Phetchaburi Station)) - Ratchaprarop - Phayathai (interchange with BTS Sukhumvit Line (Phayathai Station))