What stage Line 3 is at right now: prefeasibility studies, not design or construction
Straight answer: no, Bogotá Metro Line 3 is not under construction, and it isn't in design yet either. It's at the earliest possible stage — prefeasibility studies — according to Wikipedia, Portafolio, and eltransporte.com. That means it has no construction funding, no construction timeline, and it's actually further behind in the process than Line 2, which is already in international re-bidding after its first tender was declared void. If you're looking for the line that already has machinery on the ground, that's Line 1 — you can follow its progress month by month in the construction tracker.
The proposed route — not finalized yet
Mayor Carlos Fernando Galán announced that Line 3 would connect the municipality of Soacha with the districts of Bosa, Kennedy, Fontibón, Engativá, and Suba, according to El Tiempo. It's a sensible corridor — these are some of the most populated areas in western and southwestern Bogotá, currently served almost entirely by TransMilenio. But there's an important caveat: this is a general policy announcement, not an approved technical route. How many stations it would have, exactly where they'd sit, or its total length has not been officially defined — any map or station list you come across online is, at best, an unconfirmed projection.
The detail that matters most if you're planning around future travel: a direct airport connection
Unlike Line 1, which does not reach El Dorado Airport and ends in Chapinero, Line 3 has been proposed with a direct connection to the airport — it would be the first metro line in the system to reach it, according to El Tiempo. That's probably the single most useful fact in this announcement if you're thinking ahead about getting to and from Bogotá: neither Line 1 nor Line 2 plans to reach the airport at all. The same caveat from above still applies, though — it's part of the proposed corridor, not an approved station design.
Who's funding the studies (and what that money doesn't cover)
On December 31, 2024, the contract funding Line 3's studies and designs — not its construction — was signed, according to bogota.gov.co. The funding comes from four entities:
- Cundinamarca departmental government: COP $10,000 million
- Bogotá-Cundinamarca Metropolitan Region: COP $33,000 million
- Regional Mobility Agency: COP $300 million
- Empresa Metro de Bogotá: COP $61,565 million
That adds up to a total of COP $104,865 million, exclusively for feasibility studies and design work. That money doesn't build a single meter of viaduct — it pays for the technical work needed to decide whether, how, and along what route the line eventually gets built.
When there'll be more clarity: feasibility study expected in 2027
Luis Lota, director of the Bogotá-Cundinamarca Metropolitan Region, told La República that Line 3's feasibility study is expected to be ready in 2027, as reported by Yahoo Noticias in March 2026. That date is for the study, not for construction to start — let alone an opening date. Those are separate milestones, and right now Line 3 is many stages behind Line 1.
There's already technical work happening on the ground, in Soacha
This hasn't stayed purely at the announcement stage: the municipality of Soacha confirms that field work, topographic surveys, and design work are already underway, involving international experts who are also working on other lines in the system, according to eltransporte.com.
Putting it in context: the third of five planned lines
Under Bogotá's Land Use Plan (POT), the metro system is projected to eventually have five lines in total, and Line 3 would be only the third, according to Wikipedia. To place it on the full map:
- Line 1: under construction, with marcha blanca (system-wide testing) expected in September 2027 and commercial opening expected in March 2028.
- Line 2: in international re-bidding — see its full status here.
- Line 3: in prefeasibility studies, with no construction timeline or opening date.
The short version
Right now, Line 3 is a proposed corridor with funded studies — not a project in design or under construction. What's confirmed: it would connect Soacha with western Bogotá, it would be the first line with a direct link to El Dorado Airport, and its feasibility study is expected in 2027. What isn't confirmed — station count, exact route, opening date — remains officially undefined, and any specific figures you see claiming otherwise aren't backed by a reliable source yet.