Eurostar passenger numbers decreased in January following the terrorist attacks in Paris and the Eurotunnel lorry fire.
However, a higher volume of travel was then recorded over the Easter holiday period, taking overall passenger numbers in the first quarter of 2015 to 2.3 million, the same level as the first quarter of 2014.
The figures were released by Eurostar in its performance report for Q1 2015.
Compared with the corresponding period in 2014, business travel for the quarter increased by 7%. Ticket sales were down by 6%, with £215 million of sales revenue in Q1 2015, a decrease of £12m.