Trainline has increased its full-year revenue expectations after total ticket sales in the first half jumped 19pc year on year to £1.8bn.
The ticket-selling platform, which completed a £1.7bn stock market float in June, said it now expected revenue to rise more than a fifth, driven by a strong UK performance and more consumers buying via mobile.
It also revealed a 52pc rise to £259m for international ticket sales while total revenues jumped 29pc to £129m over the period.
However, the travel ticketing app admitted that UK sales growth would be lower in the second half.
Clare Gilmartin, Trainline chief executive, said she was “pleased with the strong levels of growth”.
“As most rail and coach tickets continue to be sold offline, and as customers and governments commit to championing more environmental modes of travel, we see significant growth opportunities for Trainline over the long term,” she said.