# Line 3 (Athens Metro)

Line 3 of the Athens Metro is a rapid transit line that runs from Dimotiko Theatro in the west to Doukissis Plakentias or Athens Airport in the east, via Syntagma. Most Line 3 trains start or terminate at Doukissis Plakentias: a through service to the Airport leaves once every 36 minutes, and shares most of the extended route with the Athens Suburban Railway. It runs for 47.3 kilometres (29.4 mi), making it the system's longest line.
Line 3 provides a direct albeit infrequent service between the Port of Piraeus with the Athens International Airport, a journey that takes up to 59 minutes. The line between Dimotiko Theatro and Doukissis Plakentias is underground, and the shared section with the Athens Suburban Railway towards the Airport is a surface-level median of the A6 and A64 motorways.
It first opened, between Ethniki Amyna and Syntagma, on 28 January 2000, with Line 2. In 2012, construction works commenced for the latest underground extension of Line 3 to Dimotiko Theatro via Piraeus which was completed on 10 October 2022.

## Rolling stock

Dual voltage ROTEM-supplied stock with greater luggage space is used for services to Athens International Airport. Line 3 rail vehicles utilize 750 V DC third rail current collection between Dimotiko Theatro and Doukissis Plakentias, changing to 25 kV AC overhead catenary while operating on the Athens Suburban Railway for access to/from the airport.

## Extensions
### Extension to Piraeus

On 1 March 2012 a contract was signed between Attiko Metro S.A. and a joint venture for the construction of the extension of Line 3 from Haidari (Agia Marina) to Piraeus, 7.6 km (4.7 mi) long with six stations. The extension to Nikaia in 2020 brought the Korydallos and Nikaia municipalities into the network's catchment area, serve approximately 132,000 passengers on a daily basis and upon completion in 2022, connects to the port of Piraeus, the largest passenger port of Europe with the Athens International Airport in just 1 hour. The completion dates of the final three stations are as follows:
* Maniatika (10 October 2022)
* Piraeus (10 October 2022)
* Dimotiko Theatro ("Municipal Theatre", 10 October 2022)

#### Notes

* The original plans included one more station after Dimotiko Theatro, named Evaggelistria. Attiko Metro cancelled plans for the station on 10 November 2008, due to local objections (mainly by the Metropolitan Bishop of Piraeus District).
* There were plans to build a station between Korydallos and Nikaia named Perivolaki.

### Cancelled proposals

There was a plan for Line 3 to have a branch line from Panormou to Marousi: that proposal was absorbed by the U-shaped Line 4 on 1 December 2005, with Georgios Souflias (then Minister for the Environment, Physical Planning and Public Works) stating that the branch line proposal would have limited the frequency of trains on either branch. The branch line was similar to what is now Phase 2 of Line 4, but it did not include OTE, and Faros was at a different location.
During the construction of the first section of Line 3, Elliniko Metro considered building stations at Geoponiki (Greek: Γεωπονική) on the extension towards Egaleo between Kerameikos and Eleonas, and Girokomeio (Γηροκομείο) on the planned Marousi branch between Panormou and Faros.

## 2018 timetable controversy

On 1 November 2018, STASY introduced a new timetable that scrapped direct metro services to the airport from the city center, due to the lack of spare parts for the fleet. At the time, travelers from the city center to the Airport had to change at Doukissis Plakentias. Reception towards the timetable changes was overwhelmingly negative: the negative reception included a complaint by the Transport Ministry General Secretary, Thanos Vourdas, claiming that STASY required ministerial approval to scrap the airport trains. On 9 November 2018, STASY decided to reinstate the original service pattern, from 10 November 2018.

## Stations

The spelling of the station names on this table, in English and Greek, are according to the signage. Most Line 3 stations have two tracks and two side platforms: Egaleo, Ethniki Amyna, Koropi, Monastiraki, Paiania–Kantza and Pallini have two tracks and one island platform. Athens Airport has three tracks and two island platforms, but Metro trains can only use the middle track.
| ¤ | Limited service of one train every 36 minutes |
| † | Terminal station |
| # | Interchange station |
| Station English | Station Greek | Municipality | Opened | Interchanges and notes | Position |
| Dimotiko Theatro $^{†#}$ | Δημοτικό Θέατρο | Piraeus | 10 October 2022 | Interchange with the Athens Tram at Dimarcheio. | 37°56′34″N 23°38′50″E﻿ / ﻿37.942905°N 23.647350°E﻿ / 37.942905; 23.647350﻿ (Dimotiko Theatro) |
| Piraeus $^{†#}$ | Πειραιάς | Piraeus | 10 October 2022 | Interchange with Line 1 and the Athens Suburban Railway. | 37°56′53″N 23°38′32″E﻿ / ﻿37.948100°N 23.642265°E﻿ / 37.948100; 23.642265﻿ (Piraeus) |
| Maniatika | Μανιάτικα | Piraeus | 10 October 2022 | | 37°57′34″N 23°38′23″E﻿ / ﻿37.959545°N 23.639780°E﻿ / 37.959545; 23.639780﻿ (Maniatika) |
| Nikaia | Νίκαια | Nikaia-Agios Ioannis Rentis | 7 July 2020 | | 37°57′57″N 23°38′51″E﻿ / ﻿37.965745°N 23.647550°E﻿ / 37.965745; 23.647550﻿ (Nikaia) |
| Korydallos | Κορυδαλλός | Korydallos | 7 July 2020 | | 37°58′37″N 23°39′01″E﻿ / ﻿37.977050°N 23.650405°E﻿ / 37.977050; 23.650405﻿ (Korydallos) |
| Agia Varvara | Αγία Βαρβάρα | Agia Varvara | 7 July 2020 | | 37°59′23″N 23°39′34″E﻿ / ﻿37.989710°N 23.659320°E﻿ / 37.989710; 23.659320﻿ (Agia Varvara) |
| Agia Marina | Αγία Μαρίνα | Agia Varvara | 14 December 2013 | | 37°59′49″N 23°40′02″E﻿ / ﻿37.996860°N 23.667130°E﻿ / 37.996860; 23.667130﻿ (Agia Marina) |
| Egaleo | Αιγάλεω | Aigaleo | 26 May 2007 | | 37°59′29″N 23°40′54″E﻿ / ﻿37.991420°N 23.681690°E﻿ / 37.991420; 23.681690﻿ (Egaleo) |
| Eleonas | Ελαιώνας | Aigaleo | 26 May 2007 | | 37°59′16″N 23°41′36″E﻿ / ﻿37.987725°N 23.693375°E﻿ / 37.987725; 23.693375﻿ (Eleonas) |
| Kerameikos | Κεραμεικός | Athens | 26 May 2007 | Construction of Kerameikos was suspended in 1998 and later relocated, due to an archaeological dispute. | 37°58′43″N 23°42′39″E﻿ / ﻿37.978715°N 23.710940°E﻿ / 37.978715; 23.710940﻿ (Kerameikos) |
| Monastiraki $^#$ | Μοναστηράκι | Athens | 22 April 2003 | Interchange with Line 1. Some platform signs on Line 1 use the station's Katharevousa name, "Monastirion" (Greek: Μοναστήριον). | 37°58′36″N 23°43′33″E﻿ / ﻿37.976615°N 23.725905°E﻿ / 37.976615; 23.725905﻿ (Monastiraki) |
| Syntagma $^#$ | Σύνταγμα | Athens | 28 January 2000 | Interchange with Line 2 and the Athens Tram. | 37°58′29″N 23°44′08″E﻿ / ﻿37.974790°N 23.735535°E﻿ / 37.974790; 23.735535﻿ (Syntagma) |
| Evangelismos | Ευαγγελισμός | Athens | 28 January 2000 | | 37°58′33″N 23°44′48″E﻿ / ﻿37.975900°N 23.746560°E﻿ / 37.975900; 23.746560﻿ (Evangelismos) |
| Megaro Moussikis | Μέγαρο Μουσικής | Athens | 28 January 2000 | | 37°58′46″N 23°45′13″E﻿ / ﻿37.979370°N 23.753515°E﻿ / 37.979370; 23.753515﻿ (Megaro Moussikis) |
| Ambelokipi | Αμπελόκηποι | Athens | 28 January 2000 | | 37°59′13″N 23°45′27″E﻿ / ﻿37.986945°N 23.757600°E﻿ / 37.986945; 23.757600﻿ (Ambelokipi) |
| Panormou | Πανόρμου | Athens | 28 January 2000 | | 37°59′35″N 23°45′49″E﻿ / ﻿37.993030°N 23.763530°E﻿ / 37.993030; 23.763530﻿ (Panormou) |
| Katehaki | Κατεχάκη | Athens | 28 January 2000 | | 37°59′36″N 23°46′37″E﻿ / ﻿37.993445°N 23.776965°E﻿ / 37.993445; 23.776965﻿ (Katehaki) |
| Ethniki Amyna | Εθνική Άμυνα | AthensPapagou-Cholargos | 28 January 2000 | | 37°59′58″N 23°47′05″E﻿ / ﻿37.999475°N 23.784810°E﻿ / 37.999475; 23.784810﻿ (Ethniki Amyna) |
| Holargos | Χολαργός | ChalandriPapagou-Cholargos | 23 July 2010 | This station opened after the extension to Chalandri. | 38°00′17″N 23°47′40″E﻿ / ﻿38.004710°N 23.794355°E﻿ / 38.004710; 23.794355﻿ (Holargos) |
| Nomismatokopio | Νομισματοκοπείο | Agia ParaskeviChalandri | 2 September 2009 | This station opened after the extension to Chalandri. | 38°00′34″N 23°48′21″E﻿ / ﻿38.009425°N 23.805970°E﻿ / 38.009425; 23.805970﻿ (Nomismatokopio) |
| Aghia Paraskevi | Αγία Παρασκευή | Chalandri | 30 December 2010 | This station opened after the extension to Chalandri. | 38°01′03″N 23°48′46″E﻿ / ﻿38.017380°N 23.812765°E﻿ / 38.017380; 23.812765﻿ (Aghia Paraskevi) |
| Halandri | Χαλάνδρι | Chalandri | 24 July 2004 | | 38°01′18″N 23°49′16″E﻿ / ﻿38.021755°N 23.821185°E﻿ / 38.021755; 23.821185﻿ (Halandri) |
| Doukissis Plakentias $^{†#}$ | Δουκίσσης Πλακεντίας | Chalandri | 28 July 2004 | Interchange with the Athens Suburban Railway at Plakentias. | 38°01′26″N 23°49′57″E﻿ / ﻿38.023965°N 23.832545°E﻿ / 38.023965; 23.832545﻿ (Doukissis Plakentias) |
| Pallini $^{¤#}$ | Παλλήνη | Pallini | September 2006 | Interchange with the Athens Suburban Railway. This station is operated by GAIAOSE. | 38°00′18″N 23°52′11″E﻿ / ﻿38.005100°N 23.869825°E﻿ / 38.005100; 23.869825﻿ (Pallini) |
| Paiania–Kantza $^{¤#}$ | Παιανία - Κάντζα | Paiania | 10 July 2006 | Interchange with the Athens Suburban Railway. This station is operated by GAIAOSE. | 37°59′04″N 23°52′12″E﻿ / ﻿37.984485°N 23.870020°E﻿ / 37.984485; 23.870020﻿ (Paiania–Kantza) |
| Koropi $^{¤#}$ | Κορωπί | Kropia | 10 July 2006 | Interchange with the Athens Suburban Railway. This station is operated by GAIAOSE. | 37°54′46″N 23°53′45″E﻿ / ﻿37.912860°N 23.895860°E﻿ / 37.912860; 23.895860﻿ (Koropi) |
| Athens International Airport $^{¤†#}$ | Διεθνής Αερολιμένας Αθηνών | Spata-Artemida | 30 July 2004 | Interchange with the Athens Suburban Railway. This station is operated by Athens International Airport S.A. | 37°56′13″N 23°56′41″E﻿ / ﻿37.936890°N 23.944700°E﻿ / 37.936890; 23.944700﻿ (Athens International Airport) |