Rapid transit in South Korea explained

Rapid transit systems operate in six major South Korean cities, except for Sejong.

Currently operational

Rapid transit systems
System	Locale	Lines	Stations	Length (km)	Commencement
Seoul Subway (inc. Incheon Subway)	Seoul Capital Area	23	768	1,262.2	197415 August 1974
Busan Metro	Busan–Gyeongnam Area	06	158	0205.6	198519 July 1985
Daegu Metro	Daegu–Gyeongbuk Area	03	090	0083.7	199726 November 1997
Gwangju Metro	Gwangju	01	020	0020.6	200428 April 2004
Daejeon Metro	Daejeon	01	022	0022.7	200616 March 2006

See main article: Incheon Subway.

Metropolitan Rail
- Korail operates the following commuter lines: Bundang Line, Gyeongchun Line, Gyeongui–Jungang Line, Suin Line, Gyeonggang Line, and parts of metro lines Line 1, Line 3, Line 4.
- Korail Airport Railroad operates AREX
- NeoTrans operates Shinbundang Line
- E-Rail operates Seohae Line
Urban Rail
- Seoul Metro operates Line 2, Line 5, Line 6, Line 7, Line 8, and parts of lines Line 1, Line 3, Line 4, and Line 9 Second Extension.
- Seoul Metro Line9 (a joint venture between Veolia Transport and Hyundai Rotem) operates Line 9 First Extension
- Incheon Transit operates the whole Incheon subway system (I1 & I2), as well as sections of Seoul Subway Line 7.
Light Metro Rail
- - - Uijeongbu Light Rail operates U Line Yongin Rapid Transit operates EverLine
- UI trans operates Ui LRT

Rapid transit lines in Seoul National Capital Area
Operator	Livery	Line	Stations	Length (km)	Terminuses	Commencement
Seoul Metro		Seoul Subway Line 1	10	7.8		15 August 1974
	Seoul Subway Line 2	51	60.2		31 October 1980
	Seoul Subway Line 3	34	38.2		12 July 1985
	Seoul Subway Line 4	26	31.1		20 April 1985
	Seoul Subway Line 5	51	52.3		15 November 1995
	Seoul Subway Line 6	38	35.1		7 August 2000
Seoul Metro and Incheon Transit Corporation		Seoul Subway Line 7	51	57.1		11 October 1996
Seoul Metro		Seoul Subway Line 8	17	17.7		23 November 1996
Seoul Metro Line9 & Seoul Metro		Seoul Subway Line 9	38	40.6		24 July 2009
Ui-Sinseol Trans		Ui LRT	15	11.1		1 July 2012
South-Seoul LRT		Sillim Line	11	7.8		28 May 2022
NeoTrans Co. Ltd.		Shinbundang Line	16	33.4		28 October 2011
Yongin Rapid Transit		Everline	15	18.1		26 April 2013
Uijeongbu Light Rail Transit		U Line	15	11.1		1 July 2012
Airport Railroad		AREX	13	63.8		23 March 2007
Korail		Seoul Subway Line 1	93	211.1		15 August 1974
	Seoul Subway Line 3	10	19.2		30 January 1996
	Seoul Subway Line 4	23	39.4		15 January 1993
	Gyeongui–Jungang Line	55	121.7		16 December 2005 1 July 2009
	Gyeongchun Line	24	81.3		21 December 2010
	Suin-Bundang Line	63	104.5		12 September 2020
	Gyeonggang Line	11	54.8		24 September 2016
E-Rail		Seohae Line	21	47		16 June 2018
Incheon Subway		Incheon Subway Line 1	29	29.4		6 October 1999
Incheon Subway		Incheon Subway Line 2	27	29.1		30 July 2016

See main article: Busan Metro.

Rapid transit lines in Busan
Operator	Livery	Line	Stations	Length (km)	Terminuses	Commencement
Busan Transportation Corp.		Busan Metro Line 1	40	40.5		19 July 1985
	Busan Metro Line 2	42	45.2		30 June 1999
	Busan Metro Line 3	17	18.3		28 November 2005
	Busan Metro Line 4	14	12.7		30 March 2011
B&G Metro		Busan–Gimhae Light Rail Transit	21	23.4		9 September 2011
Korail		Donghae Line	23	65.7		30 December 2016

See main article: Daegu Metro.

See main article: Daejeon Metro.

See main article: Gwangju Metro.