The average train between Kilmarnock and Portsmouth takes 8h 30m and the fastest train takes 6h 59m. There is a train service every few hours from Kilmarnock to Portsmouth. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run hourly between Kilmarnock and Portsmouth. The earliest departure is at 5:22 AM in the morning, and the last departure from Kilmarnock is at 10:32 PM which arrives into Portsmouth at 9:03 AM. All services require a transfer at Glasgow Central and take an average of 8h 30m. The schedules shown below are for the next available departures.



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Want to know about travelling from Kilmarnock to Portsmouth? 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 train from Kilmarnock to Portsmouth. However, there are services departing from Kilmarnock station and arriving at Portsmouth station via London Euston. The journey, including transfers, takes approximately 8h 30m.
Kilmarnock to Portsmouth train services, operated by ScotRail, depart from Glasgow Central station.
Kilmarnock to Portsmouth train services, operated by ScotRail, arrive at Portsmouth & Southsea station.
Book your Kilmarnock to Portsmouth train tickets online with ScotRail, Avanti West Coast and 3 other operators.
The distance between Kilmarnock and Portsmouth is 581 km. The road distance is 800 km.
You can take a train from Kilmarnock to Portsmouth & Southsea via Glasgow Central, London Euston, Euston station, Waterloo Station, and London Waterloo in around 7h 52m.