The average bus between Portsmouth and Trafalgar Square takes 2h 43m and the fastest bus takes 2h 17m. The bus service runs several times per day from Portsmouth to Trafalgar Square. 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 5 times a day between Portsmouth and Trafalgar Square. The earliest departure is at 7:20 AM in the morning, and the last departure from Portsmouth is at 6:45 PM which arrives into Trafalgar Square at 9:07 PM. All services require a transfer at Armoury Way and take an average of 2h 43m. The schedules shown below are for the next available departures.

3h 1m • 1 change

2h 46m • 1 change

2h 43m • 1 change

2h 56m • 1 change

2h 33m • 1 change

2h 44m • 1 change

2h 45m • 1 change

2h 54m • 1 change

2h 36m • 1 change

2h 50m • 1 change

2h 41m • 1 change

2h 48m • 1 change

3h 1m • 1 change

2h 46m • 1 change

2h 43m • 1 change

2h 56m • 1 change
Want to know about travelling from Portsmouth to Trafalgar Square? 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 Portsmouth to Trafalgar Square. However, there are services departing from Portsmouth station and arriving at Trafalgar Square station via Armoury Way. The journey, including transfers, takes approximately 2h 43m.
Portsmouth to Trafalgar Square bus services, operated by National Express, depart from The Hard Interchange station.
Portsmouth to Trafalgar Square bus services, operated by National Express, arrive at Charing Cross station.
The distance between Portsmouth and Trafalgar Square is 103.6 km. The road distance is 124 km.
You can take a bus from The Hard Interchange to Trafalgar Square via Armoury Way, Wandsworth Plain, and Charing Cross in around 2h 40m.