---
title: "Scheduled Train 666"
title_ko: "열차 666"
description: "Train 666 service information, source-weekday operating status and complete stop-by-stop timetables, effective September 1, 2026."
canonical_path: "/transport/rail/trains/666/"
parent_path: "/transport/rail/"
document_type: "railway-scheduled-train"
language: "en"
publication_status: "draft"
generated: true
current_timetable_effective_date: "2026-09-01"
service_family: "ktx"
generator_version: "railway-publication-v0.1"
train_no: "666"
---

# Scheduled Train 666

Service family: KTX (KTX).

Services in this weekly timetable: KTX-Sancheon (KTX-산천).

Timetable effective September 1, 2026.

Times follow the timetable's clock notation, including values such as 0:05 after midnight. The source operating weekday and stop order are preserved.

Published time reproduces the timetable entry. Arrival and Departure are shown only where those roles are explicitly recorded. A blank cell means that no separate value is provided.

## Train 666 weekly operation — effective September 1, 2026

| Source timetable weekday | Status | Service | Origin | Origin departure | Destination | Destination arrival | Stop occurrences | Timetable |
| --- | --- | --- | --- | --- | --- | --- | ---: | --- |
| Monday (MON) | Operates | KTX-Sancheon (KTX-산천) | [Yeosu-Expo Station (여수EXPO역)](/transport/rail/stations/yeosu-expo/) | 14:32 | [Suseo Station (수서역)](/transport/rail/stations/suseo/) | 17:36 | 11 | [Monday timetable](/transport/rail/trains/666/#mon) |
| Tuesday (TUE) | Operates | KTX-Sancheon (KTX-산천) | [Yeosu-Expo Station (여수EXPO역)](/transport/rail/stations/yeosu-expo/) | 14:32 | [Suseo Station (수서역)](/transport/rail/stations/suseo/) | 17:36 | 11 | [Tuesday timetable](/transport/rail/trains/666/#tue) |
| Wednesday (WED) | Operates | KTX-Sancheon (KTX-산천) | [Yeosu-Expo Station (여수EXPO역)](/transport/rail/stations/yeosu-expo/) | 14:32 | [Suseo Station (수서역)](/transport/rail/stations/suseo/) | 17:36 | 11 | [Wednesday timetable](/transport/rail/trains/666/#wed) |
| Thursday (THU) | Operates | KTX-Sancheon (KTX-산천) | [Yeosu-Expo Station (여수EXPO역)](/transport/rail/stations/yeosu-expo/) | 14:32 | [Suseo Station (수서역)](/transport/rail/stations/suseo/) | 17:36 | 11 | [Thursday timetable](/transport/rail/trains/666/#thu) |
| Friday (FRI) | Operates | KTX-Sancheon (KTX-산천) | [Yeosu-Expo Station (여수EXPO역)](/transport/rail/stations/yeosu-expo/) | 14:32 | [Suseo Station (수서역)](/transport/rail/stations/suseo/) | 17:36 | 11 | [Friday timetable](/transport/rail/trains/666/#fri) |
| Saturday (SAT) | Operates | KTX-Sancheon (KTX-산천) | [Yeosu-Expo Station (여수EXPO역)](/transport/rail/stations/yeosu-expo/) | 14:32 | [Suseo Station (수서역)](/transport/rail/stations/suseo/) | 17:36 | 11 | [Saturday timetable](/transport/rail/trains/666/#sat) |
| Sunday (SUN) | Operates | KTX-Sancheon (KTX-산천) | [Yeosu-Expo Station (여수EXPO역)](/transport/rail/stations/yeosu-expo/) | 14:32 | [Suseo Station (수서역)](/transport/rail/stations/suseo/) | 17:36 | 11 | [Sunday timetable](/transport/rail/trains/666/#sun) |

<a id="mon"></a>

## Train 666 — Monday (MON), effective September 1, 2026

Operates.

| Stop position | Station | Published time | Arrival | Departure |
| ---: | --- | --- | --- | --- |
| 1 | [Yeosu-Expo Station (여수EXPO역)](/transport/rail/stations/yeosu-expo/) | 14:32 |  | 14:32 |
| 2 | [Suncheon Station (순천역)](/transport/rail/stations/suncheon/) | 14:51 |  |  |
| 3 | [Guryegu Station (구례구역)](/transport/rail/stations/guryegu/) | 15:06 |  |  |
| 4 | [Gokseong Station (곡성역)](/transport/rail/stations/gokseong/) | 15:18 |  |  |
| 5 | [Namwon Station (남원역)](/transport/rail/stations/namwon/) | 15:29 |  |  |
| 6 | [Jeonju Station (전주역)](/transport/rail/stations/jeonju/) | 15:55 |  |  |
| 7 | [Iksan Station (익산역)](/transport/rail/stations/iksan/) | 16:15 |  |  |
| 8 | [Gongju Station (공주역)](/transport/rail/stations/gongju/) | 16:34 |  |  |
| 9 | [PyeongtaekJije Station (평택지제역)](/transport/rail/stations/pyeongtaekjije/) | 17:08 |  |  |
| 10 | [Dongtan Station (동탄역)](/transport/rail/stations/dongtan/) | 17:19 |  |  |
| 11 | [Suseo Station (수서역)](/transport/rail/stations/suseo/) | 17:36 | 17:36 |  |

<a id="tue"></a>

## Train 666 — Tuesday (TUE), effective September 1, 2026

Operates.

| Stop position | Station | Published time | Arrival | Departure |
| ---: | --- | --- | --- | --- |
| 1 | [Yeosu-Expo Station (여수EXPO역)](/transport/rail/stations/yeosu-expo/) | 14:32 |  | 14:32 |
| 2 | [Suncheon Station (순천역)](/transport/rail/stations/suncheon/) | 14:51 |  |  |
| 3 | [Guryegu Station (구례구역)](/transport/rail/stations/guryegu/) | 15:06 |  |  |
| 4 | [Gokseong Station (곡성역)](/transport/rail/stations/gokseong/) | 15:18 |  |  |
| 5 | [Namwon Station (남원역)](/transport/rail/stations/namwon/) | 15:29 |  |  |
| 6 | [Jeonju Station (전주역)](/transport/rail/stations/jeonju/) | 15:55 |  |  |
| 7 | [Iksan Station (익산역)](/transport/rail/stations/iksan/) | 16:15 |  |  |
| 8 | [Gongju Station (공주역)](/transport/rail/stations/gongju/) | 16:34 |  |  |
| 9 | [PyeongtaekJije Station (평택지제역)](/transport/rail/stations/pyeongtaekjije/) | 17:08 |  |  |
| 10 | [Dongtan Station (동탄역)](/transport/rail/stations/dongtan/) | 17:19 |  |  |
| 11 | [Suseo Station (수서역)](/transport/rail/stations/suseo/) | 17:36 | 17:36 |  |

<a id="wed"></a>

## Train 666 — Wednesday (WED), effective September 1, 2026

Operates.

| Stop position | Station | Published time | Arrival | Departure |
| ---: | --- | --- | --- | --- |
| 1 | [Yeosu-Expo Station (여수EXPO역)](/transport/rail/stations/yeosu-expo/) | 14:32 |  | 14:32 |
| 2 | [Suncheon Station (순천역)](/transport/rail/stations/suncheon/) | 14:51 |  |  |
| 3 | [Guryegu Station (구례구역)](/transport/rail/stations/guryegu/) | 15:06 |  |  |
| 4 | [Gokseong Station (곡성역)](/transport/rail/stations/gokseong/) | 15:18 |  |  |
| 5 | [Namwon Station (남원역)](/transport/rail/stations/namwon/) | 15:29 |  |  |
| 6 | [Jeonju Station (전주역)](/transport/rail/stations/jeonju/) | 15:55 |  |  |
| 7 | [Iksan Station (익산역)](/transport/rail/stations/iksan/) | 16:15 |  |  |
| 8 | [Gongju Station (공주역)](/transport/rail/stations/gongju/) | 16:34 |  |  |
| 9 | [PyeongtaekJije Station (평택지제역)](/transport/rail/stations/pyeongtaekjije/) | 17:08 |  |  |
| 10 | [Dongtan Station (동탄역)](/transport/rail/stations/dongtan/) | 17:19 |  |  |
| 11 | [Suseo Station (수서역)](/transport/rail/stations/suseo/) | 17:36 | 17:36 |  |

<a id="thu"></a>

## Train 666 — Thursday (THU), effective September 1, 2026

Operates.

| Stop position | Station | Published time | Arrival | Departure |
| ---: | --- | --- | --- | --- |
| 1 | [Yeosu-Expo Station (여수EXPO역)](/transport/rail/stations/yeosu-expo/) | 14:32 |  | 14:32 |
| 2 | [Suncheon Station (순천역)](/transport/rail/stations/suncheon/) | 14:51 |  |  |
| 3 | [Guryegu Station (구례구역)](/transport/rail/stations/guryegu/) | 15:06 |  |  |
| 4 | [Gokseong Station (곡성역)](/transport/rail/stations/gokseong/) | 15:18 |  |  |
| 5 | [Namwon Station (남원역)](/transport/rail/stations/namwon/) | 15:29 |  |  |
| 6 | [Jeonju Station (전주역)](/transport/rail/stations/jeonju/) | 15:55 |  |  |
| 7 | [Iksan Station (익산역)](/transport/rail/stations/iksan/) | 16:15 |  |  |
| 8 | [Gongju Station (공주역)](/transport/rail/stations/gongju/) | 16:34 |  |  |
| 9 | [PyeongtaekJije Station (평택지제역)](/transport/rail/stations/pyeongtaekjije/) | 17:08 |  |  |
| 10 | [Dongtan Station (동탄역)](/transport/rail/stations/dongtan/) | 17:19 |  |  |
| 11 | [Suseo Station (수서역)](/transport/rail/stations/suseo/) | 17:36 | 17:36 |  |

<a id="fri"></a>

## Train 666 — Friday (FRI), effective September 1, 2026

Operates.

| Stop position | Station | Published time | Arrival | Departure |
| ---: | --- | --- | --- | --- |
| 1 | [Yeosu-Expo Station (여수EXPO역)](/transport/rail/stations/yeosu-expo/) | 14:32 |  | 14:32 |
| 2 | [Suncheon Station (순천역)](/transport/rail/stations/suncheon/) | 14:51 |  |  |
| 3 | [Guryegu Station (구례구역)](/transport/rail/stations/guryegu/) | 15:06 |  |  |
| 4 | [Gokseong Station (곡성역)](/transport/rail/stations/gokseong/) | 15:18 |  |  |
| 5 | [Namwon Station (남원역)](/transport/rail/stations/namwon/) | 15:29 |  |  |
| 6 | [Jeonju Station (전주역)](/transport/rail/stations/jeonju/) | 15:55 |  |  |
| 7 | [Iksan Station (익산역)](/transport/rail/stations/iksan/) | 16:15 |  |  |
| 8 | [Gongju Station (공주역)](/transport/rail/stations/gongju/) | 16:34 |  |  |
| 9 | [PyeongtaekJije Station (평택지제역)](/transport/rail/stations/pyeongtaekjije/) | 17:08 |  |  |
| 10 | [Dongtan Station (동탄역)](/transport/rail/stations/dongtan/) | 17:19 |  |  |
| 11 | [Suseo Station (수서역)](/transport/rail/stations/suseo/) | 17:36 | 17:36 |  |

<a id="sat"></a>

## Train 666 — Saturday (SAT), effective September 1, 2026

Operates.

| Stop position | Station | Published time | Arrival | Departure |
| ---: | --- | --- | --- | --- |
| 1 | [Yeosu-Expo Station (여수EXPO역)](/transport/rail/stations/yeosu-expo/) | 14:32 |  | 14:32 |
| 2 | [Suncheon Station (순천역)](/transport/rail/stations/suncheon/) | 14:51 |  |  |
| 3 | [Guryegu Station (구례구역)](/transport/rail/stations/guryegu/) | 15:06 |  |  |
| 4 | [Gokseong Station (곡성역)](/transport/rail/stations/gokseong/) | 15:18 |  |  |
| 5 | [Namwon Station (남원역)](/transport/rail/stations/namwon/) | 15:29 |  |  |
| 6 | [Jeonju Station (전주역)](/transport/rail/stations/jeonju/) | 15:55 |  |  |
| 7 | [Iksan Station (익산역)](/transport/rail/stations/iksan/) | 16:15 |  |  |
| 8 | [Gongju Station (공주역)](/transport/rail/stations/gongju/) | 16:34 |  |  |
| 9 | [PyeongtaekJije Station (평택지제역)](/transport/rail/stations/pyeongtaekjije/) | 17:08 |  |  |
| 10 | [Dongtan Station (동탄역)](/transport/rail/stations/dongtan/) | 17:19 |  |  |
| 11 | [Suseo Station (수서역)](/transport/rail/stations/suseo/) | 17:36 | 17:36 |  |

<a id="sun"></a>

## Train 666 — Sunday (SUN), effective September 1, 2026

Operates.

| Stop position | Station | Published time | Arrival | Departure |
| ---: | --- | --- | --- | --- |
| 1 | [Yeosu-Expo Station (여수EXPO역)](/transport/rail/stations/yeosu-expo/) | 14:32 |  | 14:32 |
| 2 | [Suncheon Station (순천역)](/transport/rail/stations/suncheon/) | 14:51 |  |  |
| 3 | [Guryegu Station (구례구역)](/transport/rail/stations/guryegu/) | 15:06 |  |  |
| 4 | [Gokseong Station (곡성역)](/transport/rail/stations/gokseong/) | 15:18 |  |  |
| 5 | [Namwon Station (남원역)](/transport/rail/stations/namwon/) | 15:29 |  |  |
| 6 | [Jeonju Station (전주역)](/transport/rail/stations/jeonju/) | 15:55 |  |  |
| 7 | [Iksan Station (익산역)](/transport/rail/stations/iksan/) | 16:15 |  |  |
| 8 | [Gongju Station (공주역)](/transport/rail/stations/gongju/) | 16:34 |  |  |
| 9 | [PyeongtaekJije Station (평택지제역)](/transport/rail/stations/pyeongtaekjije/) | 17:08 |  |  |
| 10 | [Dongtan Station (동탄역)](/transport/rail/stations/dongtan/) | 17:19 |  |  |
| 11 | [Suseo Station (수서역)](/transport/rail/stations/suseo/) | 17:36 | 17:36 |  |

## Related Lines and timetables

- [KTX Jeolla Line](/transport/rail/ktx/lines/jeolla/)
- [KTX Jeolla Line — Monday timetable](/transport/rail/ktx/lines/jeolla/timetables/monday/)
- [KTX Jeolla Line — Tuesday timetable](/transport/rail/ktx/lines/jeolla/timetables/tuesday/)
- [KTX Jeolla Line — Wednesday timetable](/transport/rail/ktx/lines/jeolla/timetables/wednesday/)
- [KTX Jeolla Line — Thursday timetable](/transport/rail/ktx/lines/jeolla/timetables/thursday/)
- [KTX Jeolla Line — Friday timetable](/transport/rail/ktx/lines/jeolla/timetables/friday/)
- [KTX Jeolla Line — Saturday timetable](/transport/rail/ktx/lines/jeolla/timetables/saturday/)
- [KTX Jeolla Line — Sunday timetable](/transport/rail/ktx/lines/jeolla/timetables/sunday/)
- [Railways in South Korea](/transport/rail/)

## Sources

- [KTX 시간표(2026. 9. 1. 기준).xlsx](https://www.korail.com/ticket/reserve/train-timeTable) — effective 2026-09-01. Scheduled service information, source operating-day labels, endpoints, ordered stop occurrences, and recorded times. Station English names verified against this timetable.
- [KTX-Sancheon](https://info.korail.com/infoeng/contents.do?key=1604) — reviewed 2026-09-05. Service display name.

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