Fewer passengers than ever believe tickets offer value for money.
Only 41% of passengers believe their ticket offers good or satisfactory value for money, with 37% rating it unsatisfactory or poor, the survey from the Passenger Focus group found.
It cited confusing ticket prices as a reason for passengers' dissatisfaction. But there was better news from other aspects of the survey of 26,000 people. A total of 80% were satisfied with their overall journey, while 79% were satisfied with punctuality and reliability.
East Coast Main Line operator GNER came out second top of the survey, with a 90% overall satisfaction rating ( beaten only by the Gatwick Express service.
Passenger Focus chief executive Anthony Smith said: "Satisfaction with trains arriving on time is finally getting to something like an acceptable level. But it's a paradox that as more passengers are satisfied with the overall journey, so value-for-money ratings continue to scrape along the bottom."