European high-speed rail company, Eurostar, carried 7.27 million passengers in 2004, a 15% increase from 2003.
Officials said a busy Christmas season, in which 250,000 people used the service, helped boost the year's total, reported the BBC News.
Other records set for the year included 89.2% of trains arrived on time a 10.9% increase over 2003 and sales rose 15% to $816 million.
"We are not seeing customers downgrade or switch to low-cost airlines, they are choosing to travel in high-speed comfort and style by train," Eurostar spokesman Paul Charles said.
Eurostar is slated to complete an additional section of its rail link in 2007.