Passenger boat Segawa Kisen 瀬川汽船
Sasebo – Yokose-nishi – Kawachi (Saikai) 川内～佐世保航路（瀬川汽船）
Checked a while agoWe last checked the official sources for this route on 2026-10-11. Prices and rules may have changed since: check the official page before you rely on it.
How oftenSasebo – Yokose-nishi: 11 a day each way Monday–SaturdayDetails below
Crossing15 min Sasebo – Yokose-nishi, 33 min Sasebo – Kawachi
Adult fare¥750Adult, one way, Sasebo – Yokose-nishi
Bookingnot confirmed
Straight lines between the ports, not the real course. Port positions from OpenStreetMap and the operator's map.
Boats P
| Boat | How often | Crossing |
|---|---|---|
| Passenger boat | Sasebo – Yokose-nishi: 11 a day each way Monday–Saturday (Yokose-nishi 6:05–19:30, Sasebo 6:25–20:00), 9 on Sundays and holidays (Yokose-nishi from 7:10, last from Sasebo 19:00). Oguri, Hatakejimo and Kawachi are served only by an early-morning boat to Sasebo (not Sundays/holidays) and the 17:40 boat from Sasebo. No sailings on 1 January. | 15 min Sasebo – Yokose-nishi, 33 min Sasebo – Kawachi |
Fares P
| Adult, one way, Sasebo – Yokose-nishi | ¥750 |
|---|---|
| Adult, one way, Sasebo – Kawachi | ¥920 |
One way, as published by the operator; fuel surcharges and seasonal fares may apply.
Tickets and booking P
Booking: not confirmed.
Where to buy tickets: not confirmed. Ask at the port.
Ports
- Sasebo Port 佐世保港
Show this port to staff - Yokose-nishi Port 横瀬西港
Show this port to staff - Oguri Port 小郡港
Show this port to staff - Hatakejimo Port 畑下港
Show this port to staff - Kawachi Port 川内港
Show this port to staff
Good to know P
- Bicycles are not carried at present.
- Children (6–11) pay half the adult fare.
English names are the operator's own where it publishes them, otherwise romanised for this guide. Boats are often cancelled or changed in bad weather: check the operator's page on the day.
Sources and quotes checked 2026-10-11
- route:
■佐世保 － 横瀬西 － 小郡 － 畑下 － 川内 （１９．６キロメートル）・・・所要時間（３３分）
— segawakisen.co.jp/segawakouro.html - frequency:
1 ◎6：05 ◎6：20 さいかい 2 ◎6：50 ◎6：54 ◎6：58 7：10 7：25 さいかい
— segawakisen.co.jp/segawajikokuhyo.html - frequency:
11 ◎19：30 ◎19：45 せがわ
— segawakisen.co.jp/segawajikokuhyo.html - frequency:
1 ◎6：25 ◎6:45 さいかい
— segawakisen.co.jp/segawajikokuhyo.html - frequency:
9 17：40 17：55 18：09 18：13 18：15 せがわ
— segawakisen.co.jp/segawajikokuhyo.html - frequency:
11 ◎20：00 ◎20：15 せがわ １． ◎は毎週日曜日および祝日は休航します。 なお、毎週日曜日および祝日の始発便は横瀬西発７：１０、最終便は佐世保発１9：00となります。 ２．１月１日は全便休航します。
— segawakisen.co.jp/segawajikokuhyo.html - duration:
■佐世保 ― 横瀬西（１０キロメートル）・・・所要時間（１５分）
— segawakisen.co.jp/segawakouro.html - prices:
（令和８年４月１日改定） １．大人１人片道運賃 川内 170円 畑下 230円 170円 小郡 390円 310円 230円 横瀬西 920円 900円 850円 750円 佐世保
— segawakisen.co.jp/segawaunchin.html - notes:
● 自転車 ・・・・・ 現在お取り扱いできません。
— segawakisen.co.jp/segawaunchin.html - notes:
(4) 小児運賃は大人運賃の半額とし、１０円未満の端数は５円以上切り上げ５円未満は切り捨てる。
— segawakisen.co.jp/segawaunchin.html
- segawakisen.co.jp/segawajikokuhyo.html · · checked 2026-10-11
- segawakisen.co.jp/segawaunchin.html · · checked 2026-10-11
- segawakisen.co.jp/segawakouro.html · · checked 2026-10-11