The average bus between Southampton and Cairnryan Harbour takes 21h 38m and the fastest bus takes 19h 17m. The bus service runs several times per day from Southampton to Cairnryan Harbour. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run twice daily between Southampton and Cairnryan Harbour. The earliest departure is at 8:55 AM in the morning, and the last departure from Southampton is at 4:00 PM which arrives into Cairnryan Harbour at 1:17 PM. All services require a transfer at Birmingham Coach Station and take an average of 21h 38m. The schedules shown below are for the next available departures.
Arrives next day




23h 27m • 4 changes
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19h 17m • 4 changes
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23h 32m • 4 changes
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19h 17m • 4 changes
Arrives next day




23h 32m • 4 changes
Arrives next day




19h 17m • 4 changes
Arrives next day




23h 32m • 4 changes
Arrives next day




19h 17m • 4 changes
Want to know about travelling from Southampton to Cairnryan Harbour? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct bus from Southampton to Cairnryan Harbour. However, there are services departing from Southampton station and arriving at Cairnryan Harbour station via Birmingham Coach Station station. The journey, including transfers, takes approximately 21h 38m.
Southampton to Cairnryan Harbour bus services, operated by National Express, depart from Coach Station.
Southampton to Cairnryan Harbour bus services, operated by National Express, arrive at Bridge station.
The distance between Southampton and Cairnryan Harbour is 513.5 km. The road distance is 835 km.
You can take a bus from Coach Station to Bridge via Birmingham Coach Station, Buchanan Bus Station, Ayr Bus Station, and Henrietta Street in around 15h 58m.