Orange Line (Bangkok)

MRT Orange Line
รถไฟฟ้ามหานคร สายสีส้ม
Min Buri Station
Overview
StatusStructure Complete :
OR13 Thailand Cultural Centre -
OR29 Yaek Rom Klao

Under Construction :
OR02 Bang Khun Non -
OR13 Thailand Cultural Centre

Future :
OR01 Taling Chan -
OR02 Bang Khun Non
OwnerMass Rapid Transit Authority of Thailand
LocaleBangkok, Thailand
Termini
  • OR01 Taling Chan
  • OR29 Yaek Rom Klao
Stations17 (Structure Complete)
11 (Under construction)
1 (future)
Websitehttps://www.mrta-orangelineeast.com/en/home
Service
TypeRapid transit
SystemMRT
Operator(s)Bangkok Expressway and Metro
Depot(s)Phra Ram 9
Rolling stockSiemens
32 three-car trains
History
Commenced9 February 2017 (2017-02-09)
Planned opening2028 :
OR13Thailand Cultural Centre -
OR29 Yaek Rom Klao

July 2030 :
OR02 Bang Khun Non -
OR13 Thailand Cultural Centre

TBA :
OR01 Taling Chan -
OR02 Bang Khun Non
Technical
Line length38.78 km (24.10 mi)
Elevated 8.43 km (5.24 mi)
Underground: 30.35 km (18.86 mi)
Track gauge1,435 mm (4 ft 8+12 in) standard gauge
Electrification750 V DC third rail
Operating speed80 km/h (50 mph)
Route map

Bang Khun Non
 MRT 
Siriraj
Sanam Luang
Democracy Monument
 MRT 
Lan Luang
Yommarat
 SRT 
Ratchathewi
 BTS 
Pratunam
Ratchaprarop
 ARL 
Din Daeng
Pracha Songkhro
 MRL 
Thailand Cultural Centre
 MRT 
Rama 9 Depot
MRTA
Wat Phra Ram 9
Ramkhamhaeng 12
 MRL 
Ramkhamhaeng University
SAT
Ramkhamhaeng 40
Yaek Lam Sali
 MRT 
Si Burapha
Ban Ma
Sammakorn
Nom Klao
Rat Phatthana
Wat Bang Pheng
Kheha Ram
Min Buri
 MRT 
Yaek Rom Klao

The MRT Orange Line (Thai: รถไฟฟ้ามหานคร สายสีส้ม) is a rapid transit line of the Mass Rapid Transit Authority of Thailand (MRTA) in the Bangkok Metropolitan Area, Thailand. When fully completed, the MRT Orange line will be 35.9 km (22.3 mi) long with 29 stations (7 stations will be elevated for 8.9 km (5.5 mi) and 22 will be underground for 27 km (16.8 mi)), including an interchange with the current Thailand Cultural Centre Station of MRT Blue Line).

The MRT Orange Line is divided into two sections: the 22.5 km (14.0 mi) Eastern Section, running from Yaek Rom Klao to Thailand Cultural Centre, and the 13.4 km (8.3 mi) Western Section, extending from Thailand Cultural Centre to Bang Khun Non.

Construction of the Eastern Section commenced in June 2017, and civil works were completed 100% as of June 2023. However, delays in awarding contracts for the signaling systems and rolling stock postponed the line’s opening. In December 2024, Bangkok Expressway and Metro Public Company Limited (BEM) signed a contract with Siemens Mobility and its consortium partners to supply rolling stock and signaling systems for both sections of the line. The Eastern Section is projected to open to the public in 2028.

Construction of the Western Section began in July 2024. As of December 2024, civil construction had progressed to 4.04%. This section is expected to require approximately six years for completion, with an anticipated opening in July 2030.