Bus Watford to Portsmouth Harbour from £17 | Tickets & Timetables

Watford to Portsmouth Harbour buses

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Trip Overview

The average bus between Watford and Portsmouth Harbour takes 3h 7m and the fastest bus takes 2h 37m. The bus service runs several times per day from Watford to Portsmouth 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.

3h 7m
Duration: 88 mi
Distance: £17
Average price: Every 4 hours
Frequency

Bus

best

Take the bus from Town Hall to Heathrow Terminal 2bus Ra3
Take the bus from Heathrow Central Bus Station to St Georges Squarebus 030

3h 30m

£14–38

Watford to Portsmouth Harbour bus times

Buses run every 4 hours between Watford and Portsmouth Harbour. The earliest departure is at 7:54 AM in the morning, and the last departure from Watford is at 11:01 PM which arrives into Portsmouth Harbour at 2:15 AM. All services require a transfer at Heathrow Terminal 2 and take an average of 3h 7m. The schedules shown below are for the next available departures.

Departing Wednesday, August 19, 2026

3:02 PM → 6:30 PM
3h 28m • 1 change
6:19 PM → 9:25 PM
3h 6m • 1 change
9:16 PM → 12:30 AM
Arrives next day
3h 14m • 1 change
11:01 PM → 2:15 AM
Arrives next day
3h 14m • 1 change

Departing Thursday, August 20, 2026

7:54 AM → 10:50 AM
2h 56m • 1 change
11:03 AM → 2:20 PM
3h 17m • 1 change
3:02 PM → 6:30 PM
3h 28m • 1 change
6:19 PM → 9:25 PM
3h 6m • 1 change
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Departing Friday, August 21, 2026

7:54 AM → 10:50 AM
2h 56m • 1 change
11:03 AM → 1:55 PM
2h 52m • 1 change
1:26 PM → 4:50 PM
3h 24m • 1 change
4:09 PM → 7:20 PM
3h 11m • 1 change
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Departing Saturday, August 22, 2026

8:03 AM → 10:40 AM
2h 37m • 1 change
11:07 AM → 1:55 PM
2h 48m • 1 change
1:26 PM → 4:25 PM
2h 59m • 1 change
4:10 PM → 6:50 PM
2h 40m • 1 change
Show more

Departing Sunday, August 23, 2026

8:03 AM → 10:40 AM
2h 37m • 1 change
11:07 AM → 1:55 PM
2h 48m • 1 change
1:07 PM → 4:25 PM
3h 18m • 1 change
4:10 PM → 6:50 PM
2h 40m • 1 change
Show more

Departing Monday, August 24, 2026

7:54 AM → 10:50 AM
2h 56m • 1 change
11:03 AM → 1:55 PM
2h 52m • 1 change
1:26 PM → 4:25 PM
2h 59m • 1 change
4:09 PM → 7:20 PM
3h 11m • 1 change
Show more

Departing Tuesday, August 25, 2026

7:54 AM → 10:50 AM
2h 56m • 1 change
11:03 AM → 2:20 PM
3h 17m • 1 change
3:02 PM → 6:30 PM
3h 28m • 1 change
6:19 PM → 9:25 PM
3h 6m • 1 change
Show more

Frequently asked questions

Want to know about travelling from Watford to Portsmouth 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.