We purchased tickets from London to Winchester (a stop on our way to Southampton) in April 2023 for travel in late August 2023. I believe we bought them through GWR. When we arrived at Waterloo station we discovered there was a labor strike that day. No trains were going to Winchester. We had not been notified. Fortunately, there was a train stopping at a station 20 minutes by taxi from Winchester which we were able to take. We were told to contact the company that issued our tickets: they might issue a refund or pay for the cost of the taxi. The amount we thought we might (or might not) receive in compensation did not seem to be worth the time or effort to pursue as we were on our way to a transatlantic crossing in two days. So beware of the possibility of random labor strikes which you cannot predict months or even weeks in advance. Also, we arrived at our hotel about 2-2 1/2 hours after we had planned to arrive. This snafu did not drastically affect us, but if we had been going directly to Southampton the day of embarkation things might have been far more stressful.
We purchased tickets from London to Winchester (a stop on our way to Southampton) in April 2023 for travel in late August 2023. I believe we bought them through GWR. When we arrived at Waterloo station we discovered there was a labor strike that day. No trains were going to Winchester. We had not been notified. Fortunately, there was a train stopping at a station 20 minutes by taxi from Winchester which we were able to take. We were told to contact the company that issued our tickets: they might issue a refund or pay for the cost of the taxi. The amount we thought we might (or might not) receive in compensation did not seem to be worth the time or effort to pursue as we were on our way to a transatlantic crossing in two days. So beware of the possibility of random labor strikes which you cannot predict months or even weeks in advance. Also, we arrived at our hotel about 2-2 1/2 hours after we had planned to arrive. This snafu did not drastically affect us, but if we had been going directly to Southampton the day of embarkation things might have been far more stressful.