Watford Junction to Southampton Airport (SOU) Trains

Watford Junction to Southampton Airport (SOU) trains

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Trip Overview

The average train between Watford Junction and Southampton Airport (SOU) takes 2h 30m and the fastest train takes 1h 55m. There is a train service every few hours from Watford Junction to Southampton Airport (SOU). The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

2h 30m
Duration: 89 mi
Distance: £46
Average price: Hourly
Frequency

Train

best

Take the train from Watford Junction to Clapham Junctiontrain Watford Junction - East Croydon / ...
Take the train from Clapham Junction to Southampton Airport Parkwaytrain London Waterloo - Southampton Central / ...

2h 12m

£38–88

Watford Junction to Southampton Airport (SOU) train times

Trains run hourly between Watford Junction and Southampton Airport (SOU). The earliest departure is at 5:54 AM in the morning, and the last departure from Watford Junction is at 11:42 PM which arrives into Southampton Airport (SOU) at 2:39 AM. All services require a transfer, and take on average 2h 30m. The schedules shown below are for the next available departures.

Departing Friday, August 21, 2026

5:52 PM → 8:12 PM
2h 20m • 1 change
6:52 PM → 9:13 PM
2h 21m • 1 change
7:52 PM → 10:15 PM
2h 23m • 1 change
8:52 PM → 11:13 PM
2h 21m • 1 change
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Departing Saturday, August 22, 2026

6:55 AM → 9:12 AM
2h 17m • 1 change
7:52 AM → 10:12 AM
2h 20m • 1 change
8:52 AM → 11:12 AM
2h 20m • 1 change
9:52 AM → 12:12 PM
2h 20m • 1 change
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Departing Sunday, August 23, 2026

9:17 AM → 11:25 AM
2h 8m • 1 change
10:15 AM → 12:25 PM
2h 10m • 1 change
11:20 AM → 1:52 PM
2h 32m • 1 change
12:20 PM → 2:52 PM
2h 32m • 1 change
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Departing Monday, August 24, 2026

5:54 AM → 7:49 AM
1h 55m • 1 change
6:52 AM → 9:13 AM
2h 21m • 1 change
7:39 AM → 10:12 AM
2h 33m • 1 change
8:52 AM → 11:12 AM
2h 20m • 1 change
Show more

Frequently asked questions

Want to know about travelling from Watford Junction to Southampton Airport (SOU)? 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.