Birmingham ▸ Carmarthen
Carmarthen ▸ Birmingham ⇄Direct buses · no change
- 13:30 → 18:20National Express 112Birmingham, Coach Station → Carmarthen, Rose and Crown · via Newport, Cardiff, Bridgend, Swansea…4h508 stopsRuns: Sat, SunBook on National Express ↗
- 13:30 → 19:05National Express 112Birmingham, Coach Station → Carmarthen, Rose and Crown · via Newport, Cardiff, Bridgend, Swansea…5h358 stopsRuns: Only Fri 30 Oct, Fri 6 Nov, Fri 13 Nov, Fri 20 NovBook on National Express ↗
- 14:00 → 19:00National Express 112Birmingham, Coach Station → Carmarthen, Rose and Crown · via Newport, Cardiff, Bridgend, Swansea…5h008 stopsRuns: Mon to ThuBook on National Express ↗
Local times at each stop. Times from official open data: National Coach Services Dataset (Department for Transport) (file of 23 Oct 2026). Checked Thu 29 Oct 2026; they cover 29 Oct to 25 Nov 2026. Timetables change, so check with the operator before you travel. A bus from a company that publishes no open timetable may be missing. Contains public sector information licensed under the Open Government Licence v3.0: the National Coach Services Dataset (Department for Transport), taken from the Bus Open Data Service website. How we build this.
Quick answers
Is there a direct bus from Birmingham to Carmarthen?
Yes. 1 a day on average, with National Express, no change of bus (29 Oct to 25 Nov 2026).
How long is the bus from Birmingham to Carmarthen?
The fastest takes 4h50; the slowest 5h35, for 178 km as the crow flies.
When do the buses leave?
The earliest leaves at 13:30 and the latest at 14:00, local time in Birmingham. Not every bus runs every day: pick a date above.
Is there a night bus from Birmingham to Carmarthen?
Not an overnight one: every bus here travels by day or evening.