The TCDD Taşımacılık A.Ş. operates a 12,532 km long system throughout Turkey and currently 90% of the network is served by passenger rail.
The second main intercity service of the company are the mainline trains known as ExpressorMain Line (Turkish: Ekspres, Ana Hat). These trains connect major Turkish cities throughout the country but they are progressively stopped as the YHT network expands.
| Name | Type | Route | Numbers | Daily round trips | Route miles |
|---|---|---|---|---|---|
| Aegean Express | Mainline | İzmir – Manisa – Balıkesir – Kütahya – Eskişehir | 32011, 72018 | Daily | 576 |
| Ankara Express | Mainline | Istanbul – İzmit – Bilecik – Eskişehir – Ankara | 22001, 12002 | Daily | 610 |
| Eastern Express | Mainline | Ankara – Kırıkkale – Kayseri – Sivas – Erzurum – Kars | 22010, 42009 | Daily | 1,365 |
| Erciyes Express | Mainline | Kayseri – Niğde – Adana | 22002, 62001 | Daily | |
| Euphrates Express | Mainline | Adana – Osmaniye – Malatya – Elazığ | 52003, 62004 | Daily | |
| İzmir Blue Train | Mainline | İzmir – Manisa – Balıkesir – Kütahya – Eskişehir – Ankara | 22006, 32005 | Daily | 824 |
| Konya Blue Train | Mainline | İzmir – Manisa – Uşak – Afyonkarahisar – Konya | 72008, 32007 | Daily | 693 |
| Lakes Express | Mainline | İzmir – Aydın – Denizli – Isparta (Burdur) | 32015, 72016 | Daily | |
| Lake Van Express | Mainline | Ankara – Kırıkkale – Kayseri – Sivas – Malatya – Elazığ – Muş – Tatvan | 22012, 52011 | Twice-weekly | |
| Pamukkale Express | Mainline | Eskişehir – Kütahya – Afyonkarahisar – Denizli | 72013, 72014 | Daily | 421 |
| Southern Express | Mainline | Ankara – Kırıkkale – Kayseri – Sivas – Malatya – Diyarbakır – Batman – Kurtalan | 22014, 52013 | 5 weekly roundtrips | |
| Taurus Express | Mainline | Konya – Karaman – Adana | 62005, 62006 | Daily | 668 |
| Yüksek Hızlı Tren | High-speed | Ankara – Eskișehir – Bilecik – İzmit – Istanbul | 81001-81028 | 9x daily (Monday-Thursday), 10x daily (Friday-Sunday) | 594 |
| Ankara – Eskișehir | 81101-81105, 81102, 81108, 81110 | 3x daily | 246 | ||
| Ankara – Konya | 81203-81206, 81209-81213, 81216 | 4x daily (Monday-Thursday), 5x daily (Friday-Sunday) | 312 | ||
| Ankara – Konya – Karaman | 81201, 81207, 81208, 81214 | 2x daily | 414 | ||
| Istanbul – İzmit – Bilecik – Eskişehir – Konya | 81302, 81303, 81306, 81309, 81310, 91313 | 3x daily | |||
| Istanbul – İzmit – Bilecik – Eskişehir – Konya – Karaman | 81304, 91311 | Daily | |||
| 4th of September Blue Train | Mainline | Ankara – Kırıkkale – Kayseri – Sivas – Malatya | 22018, 52019 | Daily | |
| 6th of September Express | Mainline | İzmir – Manisa – Balıkesir – Bandırma | Suspended | 341 | |
| 17th of September Express | Mainline | Bandırma – Balıkesir – Manisa – İzmir | Suspended | 341 |
Non-subsidised routes:
| Name | Route | Numbers | Frequency | On Board Services |
|---|---|---|---|---|
| Eastern Express (Touristic service) | Ankara-Kars | 3 times a week | Sleeper, Diner |
