What you can claim after a delay or cancellation depends on a number of variants - train company, type of ticket and length of delay.
The Government today announced it is to cap the increases of regulated fares planned for January 2014.
Rail fares are going up in January but they have been capped and will increase by a maximum of 6.1%.
A number of South West Trains services have been cancelled or delayed due to flooding and "electricity supply problems".
We are currently unable to run between Portsmouth and Fareham due to electrical supply problems.
Flooding in the #Fulwell area means that trains cannot run between Shepperton and Teddington until approximately 09:30
National Rail is warning of disruption to a number of services due to the wet and windy weather. The train companies affected are as follows:
- Arriva Trains
- Chiltern Railways
- Virgin Trains
- First TransPennine Express
- First Capital Connect
Network Rail reports that the damage caused by the severe weather is "even more extensive" than that inflicted by St Jude's storm in October.
But it adds that "nearly all main lines" are now open and that "most passengers have now completed their journeys".
Rail travel to Gatwick airport remains difficult due to landslips, it said.
Southeastern reports that services remain disrupted across its entire network due to the poor weather:
(1/6) Owing to poor weather conditions all lines are affected. Services across the whole Southeastern network may be cancelled or delayed.
East Coast Trains is one of many rail companies that have lifted restrictions on when passengers can travel tonight and tomorrow.
Ticket restrictions are lifted for the remainder of tonight and tomorrow. Customers may travel at any time #UKStorm
First Great Western is reporting delays of up to two hours as a result of speed restrictions on many routes:
#UKStorm Customers with tickets for today (23/12) as well as 24/12 can travel on any service over the 2 days
Network Rail has extended 50mph speed restrictions to many of the main routes in the southern half of England this evening.
A spokeswoman said the restrictions are "not going to be lifted tonight" and that they would assess the situation on Tuesday morning.
Greater Anglia says it is running a reduced service this evening and warns that lines may be late to open tomorrow morning: